#!/usr/bin/lua
local fennel
package.preload["fennel"] = package.preload["fennel"] or function(...)
  -- SPDX-License-Identifier: MIT
  -- SPDX-FileCopyrightText: Calvin Rose and contributors
  package.preload["fennel.repl"] = package.preload["fennel.repl"] or function(...)
    local utils = require("fennel.utils")
    local parser = require("fennel.parser")
    local compiler = require("fennel.compiler")
    local specials = require("fennel.specials")
    local view = require("fennel.view")
    local depth = 0
    local function prompt_for(top_3f)
      if top_3f then
        return (string.rep(">", (depth + 1)) .. " ")
      else
        return (string.rep(".", (depth + 1)) .. " ")
      end
    end
    local function default_read_chunk(parser_state)
      io.write(prompt_for((0 == parser_state["stack-size"])))
      io.flush()
      local input = io.read()
      return (input and (input .. "\n"))
    end
    local function default_on_values(xs)
      io.write(table.concat(xs, "\9"))
      return io.write("\n")
    end
    local function default_on_error(errtype, err)
      local function _702_()
        local _701_0 = errtype
        if (_701_0 == "Runtime") then
          return (compiler.traceback(tostring(err), 4) .. "\n")
        else
          local _ = _701_0
          return ("%s error: %s\n"):format(errtype, tostring(err))
        end
      end
      return io.write(_702_())
    end
    local function splice_save_locals(env, lua_source, scope)
      local saves = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for name in pairs(env.___replLocals___) do
          local val_19_ = ("local %s = ___replLocals___[%q]"):format((scope.manglings[name] or name), name)
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        saves = tbl_17_
      end
      local binds = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for raw, name in pairs(scope.manglings) do
          local val_19_ = nil
          if not scope.gensyms[name] then
            val_19_ = ("___replLocals___[%q] = %s"):format(raw, name)
          else
          val_19_ = nil
          end
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        binds = tbl_17_
      end
      local gap = nil
      if lua_source:find("\n") then
        gap = "\n"
      else
        gap = " "
      end
      local function _708_()
        if next(saves) then
          return (table.concat(saves, " ") .. gap)
        else
          return ""
        end
      end
      local function _711_()
        local _709_0, _710_0 = lua_source:match("^(.*)[\n ](return .*)$")
        if ((nil ~= _709_0) and (nil ~= _710_0)) then
          local body = _709_0
          local _return = _710_0
          return (body .. gap .. table.concat(binds, " ") .. gap .. _return)
        else
          local _ = _709_0
          return lua_source
        end
      end
      return (_708_() .. _711_())
    end
    local commands = {}
    local function completer(env, scope, text, _3ffulltext, _from, _to)
      local max_items = 2000
      local seen = {}
      local matches = {}
      local input_fragment = text:gsub(".*[%s)(]+", "")
      local stop_looking_3f = false
      local function add_partials(input, tbl, prefix)
        local scope_first_3f = ((tbl == env) or (tbl == env.___replLocals___))
        local tbl_17_ = matches
        local i_18_ = #tbl_17_
        local function _713_()
          if scope_first_3f then
            return scope.manglings
          else
            return tbl
          end
        end
        for k, is_mangled in utils.allpairs(_713_()) do
          if (max_items <= #matches) then break end
          local val_19_ = nil
          do
            local lookup_k = nil
            if scope_first_3f then
              lookup_k = is_mangled
            else
              lookup_k = k
            end
            if ((type(k) == "string") and (input == k:sub(0, #input)) and not seen[k] and ((":" ~= prefix:sub(-1)) or ("function" == type(tbl[lookup_k])))) then
              seen[k] = true
              val_19_ = (prefix .. k)
            else
            val_19_ = nil
            end
          end
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        return tbl_17_
      end
      local function descend(input, tbl, prefix, add_matches, method_3f)
        local splitter = nil
        if method_3f then
          splitter = "^([^:]+):(.*)"
        else
          splitter = "^([^.]+)%.(.*)"
        end
        local head, tail = input:match(splitter)
        local raw_head = (scope.manglings[head] or head)
        if (type(tbl[raw_head]) == "table") then
          stop_looking_3f = true
          if method_3f then
            return add_partials(tail, tbl[raw_head], (prefix .. head .. ":"))
          else
            return add_matches(tail, tbl[raw_head], (prefix .. head))
          end
        end
      end
      local function add_matches(input, tbl, prefix)
        local prefix0 = nil
        if prefix then
          prefix0 = (prefix .. ".")
        else
          prefix0 = ""
        end
        if (not input:find("%.") and input:find(":")) then
          return descend(input, tbl, prefix0, add_matches, true)
        elseif not input:find("%.") then
          return add_partials(input, tbl, prefix0)
        else
          return descend(input, tbl, prefix0, add_matches, false)
        end
      end
      do
        local _722_0 = tostring((_3ffulltext or text)):match("^%s*,([^%s()[%]]*)$")
        if (nil ~= _722_0) then
          local cmd_fragment = _722_0
          add_partials(cmd_fragment, commands, ",")
        else
          local _ = _722_0
          for _0, source in ipairs({scope.specials, scope.macros, (env.___replLocals___ or {}), env, env._G}) do
            if stop_looking_3f then break end
            add_matches(input_fragment, source)
          end
        end
      end
      return matches
    end
    local function command_3f(input)
      return input:match("^%s*,")
    end
    local function command_docs()
      local _724_
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for name, f in utils.stablepairs(commands) do
          local val_19_ = ("  ,%s - %s"):format(name, ((compiler.metadata):get(f, "fnl/docstring") or "undocumented"))
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        _724_ = tbl_17_
      end
      return table.concat(_724_, "\n")
    end
    commands.help = function(_, _0, on_values)
      return on_values({("Welcome to Fennel.\nThis is the REPL where you can enter code to be evaluated.\nYou can also run these repl commands:\n\n" .. command_docs() .. "\n  ,return FORM - Evaluate FORM and return its value to the REPL's caller.\n  ,exit - Leave the repl.\n\nUse ,doc something to see descriptions for individual macros and special forms.\nValues from previous inputs are kept in *1, *2, and *3.\n\nFor more information about the language, see https://fennel-lang.org/reference")})
    end
    do end (compiler.metadata):set(commands.help, "fnl/docstring", "Show this message.")
    local function reload(module_name, env, on_values, on_error)
      local _726_0, _727_0 = pcall(specials["load-code"]("return require(...)", env), module_name)
      if ((_726_0 == true) and (nil ~= _727_0)) then
        local old = _727_0
        local _ = nil
        package.loaded[module_name] = nil
        _ = nil
        local new = nil
        do
          local _728_0, _729_0 = pcall(require, module_name)
          if ((_728_0 == true) and (nil ~= _729_0)) then
            local new0 = _729_0
            new = new0
          elseif (true and (nil ~= _729_0)) then
            local _0 = _728_0
            local msg = _729_0
            on_error("Repl", msg)
            new = old
          else
          new = nil
          end
        end
        specials["macro-loaded"][module_name] = nil
        if ((type(old) == "table") and (type(new) == "table")) then
          for k, v in pairs(new) do
            old[k] = v
          end
          for k in pairs(old) do
            if (nil == new[k]) then
              old[k] = nil
            end
          end
          package.loaded[module_name] = old
        end
        return on_values({"ok"})
      elseif ((_726_0 == false) and (nil ~= _727_0)) then
        local msg = _727_0
        if msg:match("loop or previous error loading module") then
          package.loaded[module_name] = nil
          return reload(module_name, env, on_values, on_error)
        elseif specials["macro-loaded"][module_name] then
          specials["macro-loaded"][module_name] = nil
          return nil
        else
          local function _734_()
            local _733_0 = msg:gsub("\n.*", "")
            return _733_0
          end
          return on_error("Runtime", _734_())
        end
      end
    end
    local function run_command(read, on_error, f)
      local _737_0, _738_0, _739_0 = pcall(read)
      if ((_737_0 == true) and (_738_0 == true) and (nil ~= _739_0)) then
        local val = _739_0
        local _740_0, _741_0 = pcall(f, val)
        if ((_740_0 == false) and (nil ~= _741_0)) then
          local msg = _741_0
          return on_error("Runtime", msg)
        end
      elseif (_737_0 == false) then
        return on_error("Parse", "Couldn't parse input.")
      end
    end
    commands.reload = function(env, read, on_values, on_error)
      local function _744_(_241)
        return reload(tostring(_241), env, on_values, on_error)
      end
      return run_command(read, on_error, _744_)
    end
    do end (compiler.metadata):set(commands.reload, "fnl/docstring", "Reload the specified module.")
    commands.reset = function(env, _, on_values)
      env.___replLocals___ = {}
      return on_values({"ok"})
    end
    do end (compiler.metadata):set(commands.reset, "fnl/docstring", "Erase all repl-local scope.")
    commands.complete = function(env, read, on_values, on_error, scope, chars)
      local function _745_()
        return on_values(completer(env, scope, table.concat(chars):gsub("^%s*,complete%s+", ""):sub(1, -2)))
      end
      return run_command(read, on_error, _745_)
    end
    do end (compiler.metadata):set(commands.complete, "fnl/docstring", "Print all possible completions for a given input symbol.")
    local function apropos_2a(pattern, tbl, prefix, seen, names)
      for name, subtbl in pairs(tbl) do
        if (("string" == type(name)) and (package ~= subtbl)) then
          local _746_0 = type(subtbl)
          if (_746_0 == "function") then
            if ((prefix .. name)):match(pattern) then
              table.insert(names, (prefix .. name))
            end
          elseif (_746_0 == "table") then
            if not seen[subtbl] then
              local _748_
              do
                seen[subtbl] = true
                _748_ = seen
              end
              apropos_2a(pattern, subtbl, (prefix .. name:gsub("%.", "/") .. "."), _748_, names)
            end
          end
        end
      end
      return names
    end
    local function apropos(pattern)
      return apropos_2a(pattern:gsub("^_G%.", ""), package.loaded, "", {}, {})
    end
    commands.apropos = function(_env, read, on_values, on_error, _scope)
      local function _752_(_241)
        return on_values(apropos(tostring(_241)))
      end
      return run_command(read, on_error, _752_)
    end
    do end (compiler.metadata):set(commands.apropos, "fnl/docstring", "Print all functions matching a pattern in all loaded modules.")
    local function apropos_follow_path(path)
      local paths = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for p in path:gmatch("[^%.]+") do
          local val_19_ = p
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        paths = tbl_17_
      end
      local tgt = package.loaded
      for _, path0 in ipairs(paths) do
        if (nil == tgt) then break end
        local _755_
        do
          local _754_0 = path0:gsub("%/", ".")
          _755_ = _754_0
        end
        tgt = tgt[_755_]
      end
      return tgt
    end
    local function apropos_doc(pattern)
      local tbl_17_ = {}
      local i_18_ = #tbl_17_
      for _, path in ipairs(apropos(".*")) do
        local val_19_ = nil
        do
          local tgt = apropos_follow_path(path)
          if ("function" == type(tgt)) then
            local _756_0 = (compiler.metadata):get(tgt, "fnl/docstring")
            if (nil ~= _756_0) then
              local docstr = _756_0
              val_19_ = (docstr:match(pattern) and path)
            else
            val_19_ = nil
            end
          else
          val_19_ = nil
          end
        end
        if (nil ~= val_19_) then
          i_18_ = (i_18_ + 1)
          tbl_17_[i_18_] = val_19_
        end
      end
      return tbl_17_
    end
    commands["apropos-doc"] = function(_env, read, on_values, on_error, _scope)
      local function _760_(_241)
        return on_values(apropos_doc(tostring(_241)))
      end
      return run_command(read, on_error, _760_)
    end
    do end (compiler.metadata):set(commands["apropos-doc"], "fnl/docstring", "Print all functions that match the pattern in their docs")
    local function apropos_show_docs(on_values, pattern)
      for _, path in ipairs(apropos(pattern)) do
        local tgt = apropos_follow_path(path)
        if (("function" == type(tgt)) and (compiler.metadata):get(tgt, "fnl/docstring")) then
          on_values({specials.doc(tgt, path)})
          on_values({})
        end
      end
      return nil
    end
    commands["apropos-show-docs"] = function(_env, read, on_values, on_error)
      local function _762_(_241)
        return apropos_show_docs(on_values, tostring(_241))
      end
      return run_command(read, on_error, _762_)
    end
    do end (compiler.metadata):set(commands["apropos-show-docs"], "fnl/docstring", "Print all documentations matching a pattern in function name")
    local function resolve(identifier, _763_0, scope)
      local _764_ = _763_0
      local env = _764_
      local ___replLocals___ = _764_["___replLocals___"]
      local e = nil
      local function _765_(_241, _242)
        return (___replLocals___[scope.unmanglings[_242]] or env[_242])
      end
      e = setmetatable({}, {__index = _765_})
      local function _766_(...)
        local _767_0, _768_0 = ...
        if ((_767_0 == true) and (nil ~= _768_0)) then
          local code = _768_0
          local function _769_(...)
            local _770_0, _771_0 = ...
            if ((_770_0 == true) and (nil ~= _771_0)) then
              local val = _771_0
              return val
            else
              local _ = _770_0
              return nil
            end
          end
          return _769_(pcall(specials["load-code"](code, e)))
        else
          local _ = _767_0
          return nil
        end
      end
      return _766_(pcall(compiler["compile-string"], tostring(identifier), {scope = scope}))
    end
    commands.find = function(env, read, on_values, on_error, scope)
      local function _774_(_241)
        local _775_0 = nil
        do
          local _776_0 = utils["sym?"](_241)
          if (nil ~= _776_0) then
            local _777_0 = resolve(_776_0, env, scope)
            if (nil ~= _777_0) then
              _775_0 = debug.getinfo(_777_0)
            else
              _775_0 = _777_0
            end
          else
            _775_0 = _776_0
          end
        end
        if ((_G.type(_775_0) == "table") and (nil ~= _775_0.linedefined) and (nil ~= _775_0.short_src) and (nil ~= _775_0.source) and (_775_0.what == "Lua")) then
          local line = _775_0.linedefined
          local src = _775_0.short_src
          local source = _775_0.source
          local fnlsrc = nil
          do
            local _780_0 = compiler.sourcemap
            if (nil ~= _780_0) then
              _780_0 = _780_0[source]
            end
            if (nil ~= _780_0) then
              _780_0 = _780_0[line]
            end
            if (nil ~= _780_0) then
              _780_0 = _780_0[2]
            end
            fnlsrc = _780_0
          end
          return on_values({string.format("%s:%s", src, (fnlsrc or line))})
        elseif (_775_0 == nil) then
          return on_error("Repl", "Unknown value")
        else
          local _ = _775_0
          return on_error("Repl", "No source info")
        end
      end
      return run_command(read, on_error, _774_)
    end
    do end (compiler.metadata):set(commands.find, "fnl/docstring", "Print the filename and line number for a given function")
    commands.doc = function(env, read, on_values, on_error, scope)
      local function _785_(_241)
        local name = tostring(_241)
        local path = (utils["multi-sym?"](name) or {name})
        local ok_3f, target = nil, nil
        local function _786_()
          return (scope.specials[name] or utils["get-in"](scope.macros, path) or resolve(name, env, scope))
        end
        ok_3f, target = pcall(_786_)
        if ok_3f then
          return on_values({specials.doc(target, name)})
        else
          return on_error("Repl", ("Could not find " .. name .. " for docs."))
        end
      end
      return run_command(read, on_error, _785_)
    end
    do end (compiler.metadata):set(commands.doc, "fnl/docstring", "Print the docstring and arglist for a function, macro, or special form.")
    commands.compile = function(_, read, on_values, on_error, _0, _1, opts)
      local function _788_(_241)
        local _789_0, _790_0 = pcall(compiler.compile, _241, opts)
        if ((_789_0 == true) and (nil ~= _790_0)) then
          local result = _790_0
          return on_values({result})
        elseif (true and (nil ~= _790_0)) then
          local _2 = _789_0
          local msg = _790_0
          return on_error("Repl", ("Error compiling expression: " .. msg))
        end
      end
      return run_command(read, on_error, _788_)
    end
    do end (compiler.metadata):set(commands.compile, "fnl/docstring", "compiles the expression into lua and prints the result.")
    local function load_plugin_commands(plugins)
      for i = #(plugins or {}), 1, -1 do
        for name, f in pairs(plugins[i]) do
          local _792_0 = name:match("^repl%-command%-(.*)")
          if (nil ~= _792_0) then
            local cmd_name = _792_0
            commands[cmd_name] = f
          end
        end
      end
      return nil
    end
    local function run_command_loop(input, read, loop, env, on_values, on_error, scope, chars, opts)
      local command_name = input:match(",([^%s/]+)")
      do
        local _794_0 = commands[command_name]
        if (nil ~= _794_0) then
          local command = _794_0
          command(env, read, on_values, on_error, scope, chars, opts)
        else
          local _ = _794_0
          if ((command_name ~= "exit") and (command_name ~= "return")) then
            on_values({"Unknown command", command_name})
          end
        end
      end
      if ("exit" ~= command_name) then
        return loop((command_name == "return"))
      end
    end
    local function try_readline_21(opts, ok, readline)
      if ok then
        if readline.set_readline_name then
          readline.set_readline_name("fennel")
        end
        readline.set_options({histfile = "", keeplines = 1000})
        opts.readChunk = function(parser_state)
          local prompt = nil
          if (0 < parser_state["stack-size"]) then
            prompt = ".. "
          else
            prompt = ">> "
          end
          local str = readline.readline(prompt)
          if str then
            return (str .. "\n")
          end
        end
        local completer0 = nil
        opts.registerCompleter = function(repl_completer)
          completer0 = repl_completer
          return nil
        end
        local function repl_completer(text, from, to)
          if completer0 then
            readline.set_completion_append_character("")
            return completer0(text:sub(from, to), text, from, to)
          else
            return {}
          end
        end
        readline.set_complete_function(repl_completer)
        return readline
      end
    end
    local function should_use_readline_3f(opts)
      return (("dumb" ~= os.getenv("TERM")) and not opts.readChunk and not opts.registerCompleter)
    end
    local function repl(_3foptions)
      local old_root_options = utils.root.options
      local _803_ = utils.copy(_3foptions)
      local opts = _803_
      local _3ffennelrc = _803_["fennelrc"]
      local _ = nil
      opts.fennelrc = nil
      _ = nil
      local readline = (should_use_readline_3f(opts) and try_readline_21(opts, pcall(require, "readline")))
      local _0 = nil
      if _3ffennelrc then
        _0 = _3ffennelrc()
      else
      _0 = nil
      end
      local env = specials["wrap-env"]((opts.env or rawget(_G, "_ENV") or _G))
      local callbacks = {["view-opts"] = (opts["view-opts"] or {depth = 4}), env = env, onError = (opts.onError or default_on_error), onValues = (opts.onValues or default_on_values), pp = (opts.pp or view), readChunk = (opts.readChunk or default_read_chunk)}
      local save_locals_3f = (opts.saveLocals ~= false)
      local byte_stream, clear_stream = nil, nil
      local function _805_(_241)
        return callbacks.readChunk(_241)
      end
      byte_stream, clear_stream = parser.granulate(_805_)
      local chars = {}
      local read, reset = nil, nil
      local function _806_(parser_state)
        local b = byte_stream(parser_state)
        if b then
          table.insert(chars, string.char(b))
        end
        return b
      end
      read, reset = parser.parser(_806_)
      depth = (depth + 1)
      if opts.message then
        callbacks.onValues({opts.message})
      end
      env.___repl___ = callbacks
      opts.env, opts.scope = env, compiler["make-scope"]()
      opts.useMetadata = (opts.useMetadata ~= false)
      if (opts.allowedGlobals == nil) then
        opts.allowedGlobals = specials["current-global-names"](env)
      end
      if opts.init then
        opts.init(opts, depth)
      end
      if opts.registerCompleter then
        local function _812_()
          local _811_0 = opts.scope
          local function _813_(...)
            return completer(env, _811_0, ...)
          end
          return _813_
        end
        opts.registerCompleter(_812_())
      end
      load_plugin_commands(opts.plugins)
      if save_locals_3f then
        local function newindex(t, k, v)
          if opts.scope.manglings[k] then
            return rawset(t, k, v)
          end
        end
        env.___replLocals___ = setmetatable({}, {__newindex = newindex})
      end
      local function print_values(...)
        local vals = {...}
        local out = {}
        local pp = callbacks.pp
        env._, env.__ = vals[1], vals
        for i = 1, select("#", ...) do
          table.insert(out, pp(vals[i], callbacks["view-opts"]))
        end
        return callbacks.onValues(out)
      end
      local function save_value(...)
        env.___replLocals___["*3"] = env.___replLocals___["*2"]
        env.___replLocals___["*2"] = env.___replLocals___["*1"]
        env.___replLocals___["*1"] = ...
        return ...
      end
      opts.scope.manglings["*1"], opts.scope.unmanglings._1 = "_1", "*1"
      opts.scope.manglings["*2"], opts.scope.unmanglings._2 = "_2", "*2"
      opts.scope.manglings["*3"], opts.scope.unmanglings._3 = "_3", "*3"
      local function loop(exit_next_3f)
        for k in pairs(chars) do
          chars[k] = nil
        end
        reset()
        local ok, parser_not_eof_3f, form = pcall(read)
        local src_string = table.concat(chars)
        local readline_not_eof_3f = (not readline or (src_string ~= "(null)"))
        local not_eof_3f = (readline_not_eof_3f and parser_not_eof_3f)
        if not ok then
          callbacks.onError("Parse", not_eof_3f)
          clear_stream()
          return loop()
        elseif command_3f(src_string) then
          return run_command_loop(src_string, read, loop, env, callbacks.onValues, callbacks.onError, opts.scope, chars, opts)
        else
          if not_eof_3f then
            local function _817_(...)
              local _818_0, _819_0 = ...
              if ((_818_0 == true) and (nil ~= _819_0)) then
                local src = _819_0
                local function _820_(...)
                  local _821_0, _822_0 = ...
                  if ((_821_0 == true) and (nil ~= _822_0)) then
                    local chunk = _822_0
                    local function _823_()
                      return print_values(save_value(chunk()))
                    end
                    local function _824_(...)
                      return callbacks.onError("Runtime", ...)
                    end
                    return xpcall(_823_, _824_)
                  elseif ((_821_0 == false) and (nil ~= _822_0)) then
                    local msg = _822_0
                    clear_stream()
                    return callbacks.onError("Compile", msg)
                  end
                end
                local function _827_(...)
                  local src0 = nil
                  if save_locals_3f then
                    src0 = splice_save_locals(env, src, opts.scope)
                  else
                    src0 = src
                  end
                  return pcall(specials["load-code"], src0, env)
                end
                return _820_(_827_(...))
              elseif ((_818_0 == false) and (nil ~= _819_0)) then
                local msg = _819_0
                clear_stream()
                return callbacks.onError("Compile", msg)
              end
            end
            local function _829_()
              opts["source"] = src_string
              return opts
            end
            _817_(pcall(compiler.compile, form, _829_()))
            utils.root.options = old_root_options
            if exit_next_3f then
              return env.___replLocals___["*1"]
            else
              return loop()
            end
          end
        end
      end
      local value = loop()
      depth = (depth - 1)
      if readline then
        readline.save_history()
      end
      if opts.exit then
        opts.exit(opts, depth)
      end
      return value
    end
    local function _835_(overrides, _3fopts)
      return repl(utils.copy(_3fopts, utils.copy(overrides)))
    end
    return setmetatable({}, {__call = _835_, __index = {repl = repl}})
  end
  package.preload["fennel.specials"] = package.preload["fennel.specials"] or function(...)
    local utils = require("fennel.utils")
    local view = require("fennel.view")
    local parser = require("fennel.parser")
    local compiler = require("fennel.compiler")
    local unpack = (table.unpack or _G.unpack)
    local SPECIALS = compiler.scopes.global.specials
    local function str1(x)
      return tostring(x[1])
    end
    local function wrap_env(env)
      local function _475_(_, key)
        if utils["string?"](key) then
          return env[compiler["global-unmangling"](key)]
        else
          return env[key]
        end
      end
      local function _477_(_, key, value)
        if utils["string?"](key) then
          env[compiler["global-unmangling"](key)] = value
          return nil
        else
          env[key] = value
          return nil
        end
      end
      local function _479_()
        local _480_
        do
          local tbl_14_ = {}
          for k, v in utils.stablepairs(env) do
            local k_15_, v_16_ = nil, nil
            local _481_
            if utils["string?"](k) then
              _481_ = compiler["global-unmangling"](k)
            else
              _481_ = k
            end
            k_15_, v_16_ = _481_, v
            if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
              tbl_14_[k_15_] = v_16_
            end
          end
          _480_ = tbl_14_
        end
        return next, _480_, nil
      end
      return setmetatable({}, {__index = _475_, __newindex = _477_, __pairs = _479_})
    end
    local function fennel_module_name()
      return (utils.root.options.moduleName or "fennel")
    end
    local function current_global_names(_3fenv)
      local mt = nil
      do
        local _484_0 = getmetatable(_3fenv)
        if ((_G.type(_484_0) == "table") and (nil ~= _484_0.__pairs)) then
          local mtpairs = _484_0.__pairs
          local tbl_14_ = {}
          for k, v in mtpairs(_3fenv) do
            local k_15_, v_16_ = k, v
            if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
              tbl_14_[k_15_] = v_16_
            end
          end
          mt = tbl_14_
        elseif (_484_0 == nil) then
          mt = (_3fenv or _G)
        else
        mt = nil
        end
      end
      local function _487_()
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for k in utils.stablepairs(mt) do
          local val_19_ = compiler["global-unmangling"](k)
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        return tbl_17_
      end
      return (mt and _487_())
    end
    local function load_code(code, _3fenv, _3ffilename)
      local env = (_3fenv or rawget(_G, "_ENV") or _G)
      local _489_0, _490_0 = rawget(_G, "setfenv"), rawget(_G, "loadstring")
      if ((nil ~= _489_0) and (nil ~= _490_0)) then
        local setfenv = _489_0
        local loadstring = _490_0
        local f = assert(loadstring(code, _3ffilename))
        setfenv(f, env)
        return f
      else
        local _ = _489_0
        return assert(load(code, _3ffilename, "t", env))
      end
    end
    local function v__3edocstring(tgt)
      return (((compiler.metadata):get(tgt, "fnl/docstring") or "#<undocumented>")):gsub("\n$", ""):gsub("\n", "\n  ")
    end
    local function doc_2a(tgt, name)
      assert(("string" == type(name)), "name must be a string")
      if not tgt then
        return (name .. " not found")
      else
        local function _493_()
          local _492_0 = getmetatable(tgt)
          if ((_G.type(_492_0) == "table") and true) then
            local __call = _492_0.__call
            return ("function" == type(__call))
          end
        end
        if ((type(tgt) == "function") or _493_()) then
          local elts = {name, unpack(((compiler.metadata):get(tgt, "fnl/arglist") or {"#<unknown-arguments>"}))}
          return string.format("(%s)\n  %s", table.concat(elts, " "), v__3edocstring(tgt))
        else
          return string.format("%s\n  %s", name, v__3edocstring(tgt))
        end
      end
    end
    local function doc_special(name, arglist, docstring, body_form_3f)
      compiler.metadata[SPECIALS[name]] = {["fnl/arglist"] = arglist, ["fnl/body-form?"] = body_form_3f, ["fnl/docstring"] = docstring}
      return nil
    end
    local function compile_do(ast, scope, parent, _3fstart)
      local start = (_3fstart or 2)
      local len = #ast
      local sub_scope = compiler["make-scope"](scope)
      for i = start, len do
        compiler.compile1(ast[i], sub_scope, parent, {nval = 0})
      end
      return nil
    end
    SPECIALS["do"] = function(ast, scope, parent, opts, _3fstart, _3fchunk, _3fsub_scope, _3fpre_syms)
      local start = (_3fstart or 2)
      local sub_scope = (_3fsub_scope or compiler["make-scope"](scope))
      local chunk = (_3fchunk or {})
      local len = #ast
      local retexprs = {returned = true}
      utils.hook("pre-do", ast, sub_scope)
      local function compile_body(outer_target, outer_tail, outer_retexprs)
        for i = start, len do
          local subopts = {nval = (((i ~= len) and 0) or opts.nval), tail = (((i == len) and outer_tail) or nil), target = (((i == len) and outer_target) or nil)}
          local _ = utils["propagate-options"](opts, subopts)
          local subexprs = compiler.compile1(ast[i], sub_scope, chunk, subopts)
          if (i ~= len) then
            compiler["keep-side-effects"](subexprs, parent, nil, ast[i])
          end
        end
        compiler.emit(parent, chunk, ast)
        compiler.emit(parent, "end", ast)
        utils.hook("do", ast, sub_scope)
        return (outer_retexprs or retexprs)
      end
      if (opts.target or (opts.nval == 0) or opts.tail) then
        compiler.emit(parent, "do", ast)
        return compile_body(opts.target, opts.tail)
      elseif opts.nval then
        local syms = {}
        for i = 1, opts.nval do
          local s = ((_3fpre_syms and _3fpre_syms[i]) or compiler.gensym(scope))
          syms[i] = s
          retexprs[i] = utils.expr(s, "sym")
        end
        local outer_target = table.concat(syms, ", ")
        compiler.emit(parent, string.format("local %s", outer_target), ast)
        compiler.emit(parent, "do", ast)
        return compile_body(outer_target, opts.tail)
      else
        local fname = compiler.gensym(scope)
        local fargs = nil
        if scope.vararg then
          fargs = "..."
        else
          fargs = ""
        end
        compiler.emit(parent, string.format("local function %s(%s)", fname, fargs), ast)
        return compile_body(nil, true, utils.expr((fname .. "(" .. fargs .. ")"), "statement"))
      end
    end
    doc_special("do", {"..."}, "Evaluate multiple forms; return last value.", true)
    local function iter_args(ast)
      local ast0, len, i = ast, #ast, 1
      local function _499_()
        i = (1 + i)
        while ((i == len) and utils["call-of?"](ast0[i], "values")) do
          ast0 = ast0[i]
          len = #ast0
          i = 2
        end
        return ast0[i], (nil == ast0[(i + 1)])
      end
      return _499_
    end
    SPECIALS.values = function(ast, scope, parent)
      local exprs = {}
      for subast, last_3f in iter_args(ast) do
        local subexprs = compiler.compile1(subast, scope, parent, {nval = (not last_3f and 1)})
        table.insert(exprs, subexprs[1])
        if last_3f then
          for j = 2, #subexprs do
            table.insert(exprs, subexprs[j])
          end
        end
      end
      return exprs
    end
    doc_special("values", {"..."}, "Return multiple values from a function. Must be in tail position.")
    local function __3estack(stack, tbl)
      for k, v in pairs(tbl) do
        table.insert(stack, k)
        table.insert(stack, v)
      end
      return stack
    end
    local function literal_3f(val)
      local res = true
      if utils["list?"](val) then
        res = false
      elseif utils["table?"](val) then
        local stack = __3estack({}, val)
        for _, elt in ipairs(stack) do
          if not res then break end
          if utils["list?"](elt) then
            res = false
          elseif utils["table?"](elt) then
            __3estack(stack, elt)
          end
        end
      end
      return res
    end
    local function compile_value(v)
      local opts = {nval = 1, tail = false}
      local scope = compiler["make-scope"]()
      local chunk = {}
      local _503_ = compiler.compile1(v, scope, chunk, opts)
      local _504_ = _503_[1]
      local v0 = _504_[1]
      return v0
    end
    local function insert_meta(meta, k, v)
      local view_opts = {["escape-newlines?"] = true, ["line-length"] = math.huge, ["one-line?"] = true}
      compiler.assert((type(k) == "string"), ("expected string keys in metadata table, got: %s"):format(view(k, view_opts)))
      compiler.assert(literal_3f(v), ("expected literal value in metadata table, got: %s %s"):format(view(k, view_opts), view(v, view_opts)))
      table.insert(meta, view(k))
      local function _505_()
        if ("string" == type(v)) then
          return view(v, view_opts)
        else
          return compile_value(v)
        end
      end
      table.insert(meta, _505_())
      return meta
    end
    local function insert_arglist(meta, arg_list)
      local opts = {["escape-newlines?"] = true, ["line-length"] = math.huge, ["one-line?"] = true}
      local view_args = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for _, arg in ipairs(arg_list) do
          local val_19_ = view(view(arg, opts))
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        view_args = tbl_17_
      end
      table.insert(meta, "\"fnl/arglist\"")
      table.insert(meta, ("{" .. table.concat(view_args, ", ") .. "}"))
      return meta
    end
    local function set_fn_metadata(f_metadata, parent, fn_name)
      if utils.root.options.useMetadata then
        local meta_fields = {}
        for k, v in utils.stablepairs(f_metadata) do
          if (k == "fnl/arglist") then
            insert_arglist(meta_fields, v)
          else
            insert_meta(meta_fields, k, v)
          end
        end
        local meta_str = ("require(\"%s\").metadata"):format(fennel_module_name())
        return compiler.emit(parent, ("pcall(function() %s:setall(%s, %s) end)"):format(meta_str, fn_name, table.concat(meta_fields, ", ")))
      end
    end
    local function get_fn_name(ast, scope, fn_name, multi)
      if (fn_name and (fn_name[1] ~= "nil")) then
        local _509_
        if not multi then
          _509_ = compiler["declare-local"](fn_name, scope, ast)
        else
          _509_ = compiler["symbol-to-expression"](fn_name, scope)[1]
        end
        return _509_, not multi, 3
      else
        return nil, true, 2
      end
    end
    local function compile_named_fn(ast, f_scope, f_chunk, parent, index, fn_name, local_3f, arg_name_list, f_metadata)
      utils.hook("pre-fn", ast, f_scope)
      for i = (index + 1), #ast do
        compiler.compile1(ast[i], f_scope, f_chunk, {nval = (((i ~= #ast) and 0) or nil), tail = (i == #ast)})
      end
      local _512_
      if local_3f then
        _512_ = "local function %s(%s)"
      else
        _512_ = "%s = function(%s)"
      end
      compiler.emit(parent, string.format(_512_, fn_name, table.concat(arg_name_list, ", ")), ast)
      compiler.emit(parent, f_chunk, ast)
      compiler.emit(parent, "end", ast)
      set_fn_metadata(f_metadata, parent, fn_name)
      utils.hook("fn", ast, f_scope)
      return utils.expr(fn_name, "sym")
    end
    local function compile_anonymous_fn(ast, f_scope, f_chunk, parent, index, arg_name_list, f_metadata, scope)
      local fn_name = compiler.gensym(scope)
      return compile_named_fn(ast, f_scope, f_chunk, parent, index, fn_name, true, arg_name_list, f_metadata)
    end
    local function maybe_metadata(ast, pred, handler, mt, index)
      local index_2a = (index + 1)
      local index_2a_before_ast_end_3f = (index_2a < #ast)
      local expr = ast[index_2a]
      if (index_2a_before_ast_end_3f and pred(expr)) then
        return handler(mt, expr), index_2a
      else
        return mt, index
      end
    end
    local function get_function_metadata(ast, arg_list, index)
      local function _515_(_241, _242)
        local tbl_14_ = _241
        for k, v in pairs(_242) do
          local k_15_, v_16_ = k, v
          if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
            tbl_14_[k_15_] = v_16_
          end
        end
        return tbl_14_
      end
      local function _517_(_241, _242)
        _241["fnl/docstring"] = _242
        return _241
      end
      return maybe_metadata(ast, utils["kv-table?"], _515_, maybe_metadata(ast, utils["string?"], _517_, {["fnl/arglist"] = arg_list}, index))
    end
    SPECIALS.fn = function(ast, scope, parent, opts)
      local f_scope = nil
      do
        local _518_0 = compiler["make-scope"](scope)
        _518_0["vararg"] = false
        f_scope = _518_0
      end
      local f_chunk = {}
      local fn_sym = utils["sym?"](ast[2])
      local multi = (fn_sym and utils["multi-sym?"](fn_sym[1]))
      local fn_name, local_3f, index = get_fn_name(ast, scope, fn_sym, multi, opts)
      local arg_list = compiler.assert(utils["table?"](ast[index]), "expected parameters table", ast)
      compiler.assert((not multi or not multi["multi-sym-method-call"]), ("unexpected multi symbol " .. tostring(fn_name)), fn_sym)
      if (multi and not scope.symmeta[multi[1]] and not compiler["global-allowed?"](multi[1])) then
        compiler.assert(nil, ("expected local table " .. multi[1]), ast[2])
      end
      local function destructure_arg(arg)
        local raw = utils.sym(compiler.gensym(scope))
        local declared = compiler["declare-local"](raw, f_scope, ast)
        compiler.destructure(arg, raw, ast, f_scope, f_chunk, {declaration = true, nomulti = true, symtype = "arg"})
        return declared
      end
      local function destructure_amp(i)
        compiler.assert((i == (#arg_list - 1)), "expected rest argument before last parameter", arg_list[(i + 1)], arg_list)
        f_scope.vararg = true
        compiler.destructure(arg_list[#arg_list], {utils.varg()}, ast, f_scope, f_chunk, {declaration = true, nomulti = true, symtype = "arg"})
        return "..."
      end
      local function get_arg_name(arg, i)
        if f_scope.vararg then
          return nil
        elseif utils["varg?"](arg) then
          compiler.assert((arg == arg_list[#arg_list]), "expected vararg as last parameter", ast)
          f_scope.vararg = true
          return "..."
        elseif utils["sym?"](arg, "&") then
          return destructure_amp(i)
        elseif (utils["sym?"](arg) and (tostring(arg) ~= "nil") and not utils["multi-sym?"](tostring(arg))) then
          return compiler["declare-local"](arg, f_scope, ast)
        elseif utils["table?"](arg) then
          return destructure_arg(arg)
        else
          return compiler.assert(false, ("expected symbol for function parameter: %s"):format(tostring(arg)), ast[index])
        end
      end
      local arg_name_list = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for i, a in ipairs(arg_list) do
          local val_19_ = get_arg_name(a, i)
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        arg_name_list = tbl_17_
      end
      local f_metadata, index0 = get_function_metadata(ast, arg_list, index)
      if fn_name then
        return compile_named_fn(ast, f_scope, f_chunk, parent, index0, fn_name, local_3f, arg_name_list, f_metadata)
      else
        return compile_anonymous_fn(ast, f_scope, f_chunk, parent, index0, arg_name_list, f_metadata, scope)
      end
    end
    doc_special("fn", {"name?", "args", "docstring?", "..."}, "Function syntax. May optionally include a name and docstring or a metadata table.\nIf a name is provided, the function will be bound in the current scope.\nWhen called with the wrong number of args, excess args will be discarded\nand lacking args will be nil, use lambda for arity-checked functions.", true)
    SPECIALS.lua = function(ast, _, parent)
      compiler.assert(((#ast == 2) or (#ast == 3)), "expected 1 or 2 arguments", ast)
      local _524_
      do
        local _523_0 = utils["sym?"](ast[2])
        if (nil ~= _523_0) then
          _524_ = tostring(_523_0)
        else
          _524_ = _523_0
        end
      end
      if ("nil" ~= _524_) then
        table.insert(parent, {ast = ast, leaf = tostring(ast[2])})
      end
      local _528_
      do
        local _527_0 = utils["sym?"](ast[3])
        if (nil ~= _527_0) then
          _528_ = tostring(_527_0)
        else
          _528_ = _527_0
        end
      end
      if ("nil" ~= _528_) then
        return tostring(ast[3])
      end
    end
    local function dot(ast, scope, parent)
      compiler.assert((1 < #ast), "expected table argument", ast)
      local len = #ast
      local lhs_node = compiler.macroexpand(ast[2], scope)
      local _531_ = compiler.compile1(lhs_node, scope, parent, {nval = 1})
      local lhs = _531_[1]
      if (len == 2) then
        return tostring(lhs)
      else
        local indices = {}
        for i = 3, len do
          local index = ast[i]
          if (utils["string?"](index) and utils["valid-lua-identifier?"](index)) then
            table.insert(indices, ("." .. index))
          else
            local _532_ = compiler.compile1(index, scope, parent, {nval = 1})
            local index0 = _532_[1]
            table.insert(indices, ("[" .. tostring(index0) .. "]"))
          end
        end
        if (not (utils["sym?"](lhs_node) or utils["list?"](lhs_node)) or ("nil" == tostring(lhs_node))) then
          return ("(" .. tostring(lhs) .. ")" .. table.concat(indices))
        else
          return (tostring(lhs) .. table.concat(indices))
        end
      end
    end
    SPECIALS["."] = dot
    doc_special(".", {"tbl", "key1", "..."}, "Look up key1 in tbl table. If more args are provided, do a nested lookup.")
    SPECIALS.global = function(ast, scope, parent)
      compiler.assert((#ast == 3), "expected name and value", ast)
      compiler.destructure(ast[2], ast[3], ast, scope, parent, {forceglobal = true, nomulti = true, symtype = "global"})
      return nil
    end
    doc_special("global", {"name", "val"}, "Set name as a global with val. Deprecated.")
    SPECIALS.set = function(ast, scope, parent)
      compiler.assert((#ast == 3), "expected name and value", ast)
      compiler.destructure(ast[2], ast[3], ast, scope, parent, {noundef = true, symtype = "set"})
      return nil
    end
    doc_special("set", {"name", "val"}, "Set a local variable to a new value. Only works on locals using var.")
    local function set_forcibly_21_2a(ast, scope, parent)
      compiler.assert((#ast == 3), "expected name and value", ast)
      compiler.destructure(ast[2], ast[3], ast, scope, parent, {forceset = true, symtype = "set"})
      return nil
    end
    SPECIALS["set-forcibly!"] = set_forcibly_21_2a
    local function local_2a(ast, scope, parent, opts)
      compiler.assert(((0 == opts.nval) or opts.tail), "can't introduce local here", ast)
      compiler.assert((#ast == 3), "expected name and value", ast)
      compiler.destructure(ast[2], ast[3], ast, scope, parent, {declaration = true, nomulti = true, symtype = "local"})
      return nil
    end
    SPECIALS["local"] = local_2a
    doc_special("local", {"name", "val"}, "Introduce new top-level immutable local.")
    SPECIALS.var = function(ast, scope, parent, opts)
      compiler.assert(((0 == opts.nval) or opts.tail), "can't introduce var here", ast)
      compiler.assert((#ast == 3), "expected name and value", ast)
      compiler.destructure(ast[2], ast[3], ast, scope, parent, {declaration = true, isvar = true, nomulti = true, symtype = "var"})
      return nil
    end
    doc_special("var", {"name", "val"}, "Introduce new mutable local.")
    local function kv_3f(t)
      local _536_
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for k in pairs(t) do
          local val_19_ = nil
          if ("number" ~= type(k)) then
            val_19_ = k
          else
          val_19_ = nil
          end
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        _536_ = tbl_17_
      end
      return _536_[1]
    end
    SPECIALS.let = function(_539_0, scope, parent, opts)
      local _540_ = _539_0
      local _ = _540_[1]
      local bindings = _540_[2]
      local ast = _540_
      compiler.assert((utils["table?"](bindings) and not kv_3f(bindings)), "expected binding sequence", (bindings or ast[1]))
      compiler.assert(((#bindings % 2) == 0), "expected even number of name/value bindings", bindings)
      compiler.assert((3 <= #ast), "expected body expression", ast[1])
      local pre_syms = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for _0 = 1, (opts.nval or 0) do
          local val_19_ = compiler.gensym(scope)
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        pre_syms = tbl_17_
      end
      local sub_scope = compiler["make-scope"](scope)
      local sub_chunk = {}
      for i = 1, #bindings, 2 do
        compiler.destructure(bindings[i], bindings[(i + 1)], ast, sub_scope, sub_chunk, {declaration = true, nomulti = true, symtype = "let"})
      end
      return SPECIALS["do"](ast, scope, parent, opts, 3, sub_chunk, sub_scope, pre_syms)
    end
    doc_special("let", {"[name1 val1 ... nameN valN]", "..."}, "Introduces a new scope in which a given set of local bindings are used.", true)
    local function get_prev_line(parent)
      if ("table" == type(parent)) then
        return get_prev_line((parent.leaf or parent[#parent]))
      else
        return (parent or "")
      end
    end
    local function needs_separator_3f(root, prev_line)
      return (root:match("^%(") and prev_line and not prev_line:find(" end$"))
    end
    SPECIALS.tset = function(ast, scope, parent)
      compiler.assert((3 < #ast), "expected table, key, and value arguments", ast)
      compiler.assert(((type(ast[2]) ~= "boolean") and (type(ast[2]) ~= "number")), "cannot set field of literal value", ast)
      local root = str1(compiler.compile1(ast[2], scope, parent, {nval = 1}))
      local root0 = nil
      if root:match("^[.{\"]") then
        root0 = string.format("(%s)", root)
      else
        root0 = root
      end
      local keys = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for i = 3, (#ast - 1) do
          local val_19_ = str1(compiler.compile1(ast[i], scope, parent, {nval = 1}))
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        keys = tbl_17_
      end
      local value = str1(compiler.compile1(ast[#ast], scope, parent, {nval = 1}))
      local fmtstr = nil
      if needs_separator_3f(root0, get_prev_line(parent)) then
        fmtstr = "do end %s[%s] = %s"
      else
        fmtstr = "%s[%s] = %s"
      end
      return compiler.emit(parent, fmtstr:format(root0, table.concat(keys, "]["), value), ast)
    end
    doc_special("tset", {"tbl", "key1", "...", "keyN", "val"}, "Set the value of a table field. Deprecated in favor of set.")
    local function calculate_if_target(scope, opts)
      if not (opts.tail or opts.target or opts.nval) then
        return "iife", true, nil
      elseif (opts.nval and (opts.nval ~= 0) and not opts.target) then
        local accum = {}
        local target_exprs = {}
        for i = 1, opts.nval do
          local s = compiler.gensym(scope)
          accum[i] = s
          target_exprs[i] = utils.expr(s, "sym")
        end
        return "target", opts.tail, table.concat(accum, ", "), target_exprs
      else
        return "none", opts.tail, opts.target
      end
    end
    local function if_2a(ast, scope, parent, opts)
      compiler.assert((2 < #ast), "expected condition and body", ast)
      if ((1 == (#ast % 2)) and (ast[(#ast - 1)] == true)) then
        table.remove(ast, (#ast - 1))
      end
      if (1 == (#ast % 2)) then
        table.insert(ast, utils.sym("nil"))
      end
      if (#ast == 2) then
        return SPECIALS["do"](utils.list(utils.sym("do"), ast[2]), scope, parent, opts)
      else
        local do_scope = compiler["make-scope"](scope)
        local branches = {}
        local wrapper, inner_tail, inner_target, target_exprs = calculate_if_target(scope, opts)
        local body_opts = {nval = opts.nval, tail = inner_tail, target = inner_target}
        local function compile_body(i)
          local chunk = {}
          local cscope = compiler["make-scope"](do_scope)
          compiler["keep-side-effects"](compiler.compile1(ast[i], cscope, chunk, body_opts), chunk, nil, ast[i])
          return {chunk = chunk, scope = cscope}
        end
        for i = 2, (#ast - 1), 2 do
          local condchunk = {}
          local _549_ = compiler.compile1(ast[i], do_scope, condchunk, {nval = 1})
          local cond = _549_[1]
          local branch = compile_body((i + 1))
          branch.cond = cond
          branch.condchunk = condchunk
          branch.nested = ((i ~= 2) and (next(condchunk, nil) == nil))
          table.insert(branches, branch)
        end
        local else_branch = compile_body(#ast)
        local s = compiler.gensym(scope)
        local buffer = {}
        local last_buffer = buffer
        for i = 1, #branches do
          local branch = branches[i]
          local fstr = nil
          if not branch.nested then
            fstr = "if %s then"
          else
            fstr = "elseif %s then"
          end
          local cond = tostring(branch.cond)
          local cond_line = fstr:format(cond)
          if branch.nested then
            compiler.emit(last_buffer, branch.condchunk, ast)
          else
            for _, v in ipairs(branch.condchunk) do
              compiler.emit(last_buffer, v, ast)
            end
          end
          compiler.emit(last_buffer, cond_line, ast)
          compiler.emit(last_buffer, branch.chunk, ast)
          if (i == #branches) then
            compiler.emit(last_buffer, "else", ast)
            compiler.emit(last_buffer, else_branch.chunk, ast)
            compiler.emit(last_buffer, "end", ast)
          elseif not branches[(i + 1)].nested then
            local next_buffer = {}
            compiler.emit(last_buffer, "else", ast)
            compiler.emit(last_buffer, next_buffer, ast)
            compiler.emit(last_buffer, "end", ast)
            last_buffer = next_buffer
          end
        end
        if (wrapper == "iife") then
          local iifeargs = ((scope.vararg and "...") or "")
          compiler.emit(parent, ("local function %s(%s)"):format(tostring(s), iifeargs), ast)
          compiler.emit(parent, buffer, ast)
          compiler.emit(parent, "end", ast)
          return utils.expr(("%s(%s)"):format(tostring(s), iifeargs), "statement")
        elseif (wrapper == "none") then
          for i = 1, #buffer do
            compiler.emit(parent, buffer[i], ast)
          end
          return {returned = true}
        else
          compiler.emit(parent, ("local %s"):format(inner_target), ast)
          for i = 1, #buffer do
            compiler.emit(parent, buffer[i], ast)
          end
          return target_exprs
        end
      end
    end
    SPECIALS["if"] = if_2a
    doc_special("if", {"cond1", "body1", "...", "condN", "bodyN"}, "Conditional form.\nTakes any number of condition/body pairs and evaluates the first body where\nthe condition evaluates to truthy. Similar to cond in other lisps.")
    local function clause_3f(v)
      return (utils["string?"](v) or (utils["sym?"](v) and not utils["multi-sym?"](v) and tostring(v):match("^&(.+)")))
    end
    local function remove_until_condition(bindings, ast)
      local _until = nil
      for i = (#bindings - 1), 3, -1 do
        local _555_0 = clause_3f(bindings[i])
        if ((_555_0 == false) or (_555_0 == nil)) then
        elseif (nil ~= _555_0) then
          local clause = _555_0
          compiler.assert(((clause == "until") and not _until), ("unexpected iterator clause: " .. clause), ast)
          table.remove(bindings, i)
          _until = table.remove(bindings, i)
        end
      end
      return _until
    end
    local function compile_until(_3fcondition, scope, chunk)
      if _3fcondition then
        local _557_ = compiler.compile1(_3fcondition, scope, chunk, {nval = 1})
        local condition_lua = _557_[1]
        return compiler.emit(chunk, ("if %s then break end"):format(tostring(condition_lua)), utils.expr(_3fcondition, "expression"))
      end
    end
    local function iterator_bindings(ast)
      local bindings = utils.copy(ast)
      local _3funtil = remove_until_condition(bindings, ast)
      local iter = table.remove(bindings)
      local bindings0 = nil
      if (1 == #bindings) then
        bindings0 = (utils["list?"](bindings[1]) or bindings)
      else
        for _, b in ipairs(bindings) do
          if utils["list?"](b) then
            utils.warn("unexpected parens in iterator", b)
          end
        end
        bindings0 = bindings
      end
      return bindings0, iter, _3funtil
    end
    SPECIALS.each = function(ast, scope, parent)
      compiler.assert((3 <= #ast), "expected body expression", ast[1])
      compiler.assert(utils["table?"](ast[2]), "expected binding table", ast)
      local sub_scope = compiler["make-scope"](scope)
      local binding, iter, _3funtil_condition = iterator_bindings(ast[2])
      local destructures = {}
      local deferred_scope_changes = {manglings = {}, symmeta = {}}
      utils.hook("pre-each", ast, sub_scope, binding, iter, _3funtil_condition)
      local function destructure_binding(v)
        if utils["sym?"](v) then
          return compiler["declare-local"](v, sub_scope, ast, nil, deferred_scope_changes)
        else
          local raw = utils.sym(compiler.gensym(sub_scope))
          destructures[raw] = v
          return compiler["declare-local"](raw, sub_scope, ast)
        end
      end
      local bind_vars = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for _, b in ipairs(binding) do
          local val_19_ = destructure_binding(b)
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        bind_vars = tbl_17_
      end
      local vals = compiler.compile1(iter, scope, parent)
      local val_names = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for _, v in ipairs(vals) do
          local val_19_ = tostring(v)
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        val_names = tbl_17_
      end
      local chunk = {}
      compiler.assert(bind_vars[1], "expected binding and iterator", ast)
      compiler.emit(parent, ("for %s in %s do"):format(table.concat(bind_vars, ", "), table.concat(val_names, ", ")), ast)
      for raw, args in utils.stablepairs(destructures) do
        compiler.destructure(args, raw, ast, sub_scope, chunk, {declaration = true, nomulti = true, symtype = "each"})
      end
      compiler["apply-deferred-scope-changes"](sub_scope, deferred_scope_changes, ast)
      compile_until(_3funtil_condition, sub_scope, chunk)
      compile_do(ast, sub_scope, chunk, 3)
      compiler.emit(parent, chunk, ast)
      return compiler.emit(parent, "end", ast)
    end
    doc_special("each", {"[key value (iterator)]", "..."}, "Runs the body once for each set of values provided by the given iterator.\nMost commonly used with ipairs for sequential tables or pairs for  undefined\norder, but can be used with any iterator.", true)
    local function while_2a(ast, scope, parent)
      local len1 = #parent
      local condition = compiler.compile1(ast[2], scope, parent, {nval = 1})[1]
      local len2 = #parent
      local sub_chunk = {}
      if (len1 ~= len2) then
        for i = (len1 + 1), len2 do
          table.insert(sub_chunk, parent[i])
          parent[i] = nil
        end
        compiler.emit(parent, "while true do", ast)
        compiler.emit(sub_chunk, ("if not %s then break end"):format(condition[1]), ast)
      else
        compiler.emit(parent, ("while " .. tostring(condition) .. " do"), ast)
      end
      compile_do(ast, compiler["make-scope"](scope), sub_chunk, 3)
      compiler.emit(parent, sub_chunk, ast)
      return compiler.emit(parent, "end", ast)
    end
    SPECIALS["while"] = while_2a
    doc_special("while", {"condition", "..."}, "The classic while loop. Evaluates body until a condition is non-truthy.", true)
    local function for_2a(ast, scope, parent)
      compiler.assert(utils["table?"](ast[2]), "expected binding table", ast)
      local ranges = setmetatable(utils.copy(ast[2]), getmetatable(ast[2]))
      local until_condition = remove_until_condition(ranges, ast)
      local binding_sym = table.remove(ranges, 1)
      local sub_scope = compiler["make-scope"](scope)
      local range_args = {}
      local chunk = {}
      compiler.assert(utils["sym?"](binding_sym), ("unable to bind %s %s"):format(type(binding_sym), tostring(binding_sym)), ast[2])
      compiler.assert((3 <= #ast), "expected body expression", ast[1])
      compiler.assert((#ranges <= 3), "unexpected arguments", ranges)
      compiler.assert((1 < #ranges), "expected range to include start and stop", ranges)
      utils.hook("pre-for", ast, sub_scope, binding_sym)
      for i = 1, math.min(#ranges, 3) do
        range_args[i] = str1(compiler.compile1(ranges[i], scope, parent, {nval = 1}))
      end
      compiler.emit(parent, ("for %s = %s do"):format(compiler["declare-local"](binding_sym, sub_scope, ast), table.concat(range_args, ", ")), ast)
      compile_until(until_condition, sub_scope, chunk)
      compile_do(ast, sub_scope, chunk, 3)
      compiler.emit(parent, chunk, ast)
      return compiler.emit(parent, "end", ast)
    end
    SPECIALS["for"] = for_2a
    doc_special("for", {"[index start stop step?]", "..."}, "Numeric loop construct.\nEvaluates body once for each value between start and stop (inclusive).", true)
    local function method_special_type(ast)
      if (utils["string?"](ast[3]) and utils["valid-lua-identifier?"](ast[3])) then
        return "native"
      elseif utils["sym?"](ast[2]) then
        return "nonnative"
      else
        return "binding"
      end
    end
    local function native_method_call(ast, _scope, _parent, target, args)
      local _566_ = ast
      local _ = _566_[1]
      local _0 = _566_[2]
      local method_string = _566_[3]
      local call_string = nil
      if ((target.type == "literal") or (target.type == "varg") or ((target.type == "expression") and not (target[1]):match("[%)%]]$") and not (target[1]):match("%.[%a_][%w_]*$"))) then
        call_string = "(%s):%s(%s)"
      else
        call_string = "%s:%s(%s)"
      end
      return utils.expr(string.format(call_string, tostring(target), method_string, table.concat(args, ", ")), "statement")
    end
    local function nonnative_method_call(ast, scope, parent, target, args)
      local method_string = str1(compiler.compile1(ast[3], scope, parent, {nval = 1}))
      local args0 = {tostring(target), unpack(args)}
      return utils.expr(string.format("%s[%s](%s)", tostring(target), method_string, table.concat(args0, ", ")), "statement")
    end
    local function binding_method_call(ast, scope, parent, target, args)
      local method_string = str1(compiler.compile1(ast[3], scope, parent, {nval = 1}))
      local target_local = compiler.gensym(scope, "tgt")
      local args0 = {target_local, unpack(args)}
      compiler.emit(parent, string.format("local %s = %s", target_local, tostring(target)))
      return utils.expr(string.format("(%s)[%s](%s)", target_local, method_string, table.concat(args0, ", ")), "statement")
    end
    local function method_call(ast, scope, parent)
      compiler.assert((2 < #ast), "expected at least 2 arguments", ast)
      local _568_ = compiler.compile1(ast[2], scope, parent, {nval = 1})
      local target = _568_[1]
      local args = {}
      for i = 4, #ast do
        local subexprs = nil
        local _569_
        if (i ~= #ast) then
          _569_ = 1
        else
        _569_ = nil
        end
        subexprs = compiler.compile1(ast[i], scope, parent, {nval = _569_})
        local tbl_17_ = args
        local i_18_ = #tbl_17_
        for _, subexpr in ipairs(subexprs) do
          local val_19_ = tostring(subexpr)
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
      end
      local _572_0 = method_special_type(ast)
      if (_572_0 == "native") then
        return native_method_call(ast, scope, parent, target, args)
      elseif (_572_0 == "nonnative") then
        return nonnative_method_call(ast, scope, parent, target, args)
      elseif (_572_0 == "binding") then
        return binding_method_call(ast, scope, parent, target, args)
      end
    end
    SPECIALS[":"] = method_call
    doc_special(":", {"tbl", "method-name", "..."}, "Call the named method on tbl with the provided args.\nMethod name doesn't have to be known at compile-time; if it is, use\n(tbl:method-name ...) instead.")
    SPECIALS.comment = function(ast, _, parent)
      local c = nil
      local _574_
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for i, elt in ipairs(ast) do
          local val_19_ = nil
          if (i ~= 1) then
            val_19_ = view(elt, {["one-line?"] = true})
          else
          val_19_ = nil
          end
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        _574_ = tbl_17_
      end
      c = table.concat(_574_, " "):gsub("%]%]", "]\\]")
      return compiler.emit(parent, ("--[[ " .. c .. " ]]"), ast)
    end
    doc_special("comment", {"..."}, "Comment which will be emitted in Lua output.", true)
    local function hashfn_max_used(f_scope, i, max)
      local max0 = nil
      if f_scope.symmeta[("$" .. i)].used then
        max0 = i
      else
        max0 = max
      end
      if (i < 9) then
        return hashfn_max_used(f_scope, (i + 1), max0)
      else
        return max0
      end
    end
    SPECIALS.hashfn = function(ast, scope, parent)
      compiler.assert((#ast == 2), "expected one argument", ast)
      local f_scope = nil
      do
        local _579_0 = compiler["make-scope"](scope)
        _579_0["vararg"] = false
        _579_0["hashfn"] = true
        f_scope = _579_0
      end
      local f_chunk = {}
      local name = compiler.gensym(scope)
      local symbol = utils.sym(name)
      local args = {}
      compiler["declare-local"](symbol, scope, ast)
      for i = 1, 9 do
        args[i] = compiler["declare-local"](utils.sym(("$" .. i)), f_scope, ast)
      end
      local function walker(idx, node, _3fparent_node)
        if utils["sym?"](node, "$...") then
          f_scope.vararg = true
          if _3fparent_node then
            _3fparent_node[idx] = utils.varg()
            return nil
          else
            return utils.varg()
          end
        else
          return ((utils["list?"](node) and (not _3fparent_node or not utils["sym?"](node[1], "hashfn"))) or utils["table?"](node))
        end
      end
      utils["walk-tree"](ast, walker)
      compiler.compile1(ast[2], f_scope, f_chunk, {tail = true})
      local max_used = hashfn_max_used(f_scope, 1, 0)
      if f_scope.vararg then
        compiler.assert((max_used == 0), "$ and $... in hashfn are mutually exclusive", ast)
      end
      local arg_str = nil
      if f_scope.vararg then
        arg_str = tostring(utils.varg())
      else
        arg_str = table.concat(args, ", ", 1, max_used)
      end
      compiler.emit(parent, string.format("local function %s(%s)", name, arg_str), ast)
      compiler.emit(parent, f_chunk, ast)
      compiler.emit(parent, "end", ast)
      return utils.expr(name, "sym")
    end
    doc_special("hashfn", {"..."}, "Function literal shorthand; args are either $... OR $1, $2, etc.")
    local function comparator_special_type(ast)
      if (3 == #ast) then
        return "native"
      elseif utils["every?"]({unpack(ast, 3, (#ast - 1))}, utils["idempotent-expr?"]) then
        return "idempotent"
      else
        return "binding"
      end
    end
    local function short_circuit_safe_3f(x, scope)
      if (("table" ~= type(x)) or utils["sym?"](x) or utils["varg?"](x)) then
        return true
      elseif utils["table?"](x) then
        local ok = true
        for k, v in pairs(x) do
          if not ok then break end
          ok = (short_circuit_safe_3f(v, scope) and short_circuit_safe_3f(k, scope))
        end
        return ok
      elseif utils["list?"](x) then
        if utils["sym?"](x[1]) then
          local _585_0 = str1(x)
          if ((_585_0 == "fn") or (_585_0 == "hashfn") or (_585_0 == "let") or (_585_0 == "local") or (_585_0 == "var") or (_585_0 == "set") or (_585_0 == "tset") or (_585_0 == "if") or (_585_0 == "each") or (_585_0 == "for") or (_585_0 == "while") or (_585_0 == "do") or (_585_0 == "lua") or (_585_0 == "global")) then
            return false
          elseif (((_585_0 == "<") or (_585_0 == ">") or (_585_0 == "<=") or (_585_0 == ">=") or (_585_0 == "=") or (_585_0 == "not=") or (_585_0 == "~=")) and (comparator_special_type(x) == "binding")) then
            return false
          else
            local function _586_()
              return (1 ~= x[2])
            end
            if ((_585_0 == "pick-values") and _586_()) then
              return false
            else
              local function _587_()
                local call = _585_0
                return scope.macros[call]
              end
              if ((nil ~= _585_0) and _587_()) then
                local call = _585_0
                return false
              else
                local function _588_()
                  return (method_special_type(x) == "binding")
                end
                if ((_585_0 == ":") and _588_()) then
                  return false
                else
                  local _ = _585_0
                  local ok = true
                  for i = 2, #x do
                    if not ok then break end
                    ok = short_circuit_safe_3f(x[i], scope)
                  end
                  return ok
                end
              end
            end
          end
        else
          local ok = true
          for _, v in ipairs(x) do
            if not ok then break end
            ok = short_circuit_safe_3f(v, scope)
          end
          return ok
        end
      end
    end
    local function operator_special_result(ast, zero_arity, unary_prefix, padded_op, operands)
      local _592_0 = #operands
      if (_592_0 == 0) then
        if zero_arity then
          return utils.expr(zero_arity, "literal")
        else
          return compiler.assert(false, "Expected more than 0 arguments", ast)
        end
      elseif (_592_0 == 1) then
        if unary_prefix then
          return ("(" .. unary_prefix .. padded_op .. operands[1] .. ")")
        else
          return operands[1]
        end
      else
        local _ = _592_0
        return ("(" .. table.concat(operands, padded_op) .. ")")
      end
    end
    local function emit_short_circuit_if(ast, scope, parent, name, subast, accumulator, expr_string, setter)
      if (accumulator ~= expr_string) then
        compiler.emit(parent, string.format(setter, accumulator, expr_string), ast)
      end
      local function _597_()
        if (name == "and") then
          return accumulator
        else
          return ("not " .. accumulator)
        end
      end
      compiler.emit(parent, ("if %s then"):format(_597_()), subast)
      do
        local chunk = {}
        compiler.compile1(subast, scope, chunk, {nval = 1, target = accumulator})
        compiler.emit(parent, chunk)
      end
      return compiler.emit(parent, "end")
    end
    local function operator_special(name, zero_arity, unary_prefix, ast, scope, parent)
      compiler.assert(not ((#ast == 2) and utils["varg?"](ast[2])), "tried to use vararg with operator", ast)
      local padded_op = (" " .. name .. " ")
      local operands, accumulator = {}
      if utils["call-of?"](ast[#ast], "values") then
        utils.warn("multiple values in operators are deprecated", ast)
      end
      for subast in iter_args(ast) do
        if ((nil ~= next(operands)) and ((name == "or") or (name == "and")) and not short_circuit_safe_3f(subast, scope)) then
          local expr_string = table.concat(operands, padded_op)
          local setter = nil
          if accumulator then
            setter = "%s = %s"
          else
            setter = "local %s = %s"
          end
          if not accumulator then
            accumulator = compiler.gensym(scope, name)
          end
          emit_short_circuit_if(ast, scope, parent, name, subast, accumulator, expr_string, setter)
          operands = {accumulator}
        else
          table.insert(operands, str1(compiler.compile1(subast, scope, parent, {nval = 1})))
        end
      end
      return operator_special_result(ast, zero_arity, unary_prefix, padded_op, operands)
    end
    local function define_arithmetic_special(name, zero_arity, unary_prefix, _3flua_name)
      local _603_
      do
        local _602_0 = (_3flua_name or name)
        local function _604_(...)
          return operator_special(_602_0, zero_arity, unary_prefix, ...)
        end
        _603_ = _604_
      end
      SPECIALS[name] = _603_
      return doc_special(name, {"a", "b", "..."}, "Arithmetic operator; works the same as Lua but accepts more arguments.")
    end
    define_arithmetic_special("+", "0", "0")
    define_arithmetic_special("..", "''")
    define_arithmetic_special("^")
    define_arithmetic_special("-", nil, "")
    define_arithmetic_special("*", "1", "1")
    define_arithmetic_special("%")
    define_arithmetic_special("/", nil, "1")
    define_arithmetic_special("//", nil, "1")
    SPECIALS["or"] = function(ast, scope, parent)
      return operator_special("or", "false", nil, ast, scope, parent)
    end
    SPECIALS["and"] = function(ast, scope, parent)
      return operator_special("and", "true", nil, ast, scope, parent)
    end
    doc_special("and", {"a", "b", "..."}, "Boolean operator; works the same as Lua but accepts more arguments.")
    doc_special("or", {"a", "b", "..."}, "Boolean operator; works the same as Lua but accepts more arguments.")
    local function bitop_special(native_name, lib_name, zero_arity, unary_prefix, ast, scope, parent)
      if (#ast == 1) then
        return compiler.assert(zero_arity, "Expected more than 0 arguments.", ast)
      else
        local len = #ast
        local operands = {}
        local padded_native_name = (" " .. native_name .. " ")
        local prefixed_lib_name = ("bit." .. lib_name)
        for i = 2, len do
          local subexprs = nil
          local _605_
          if (i ~= len) then
            _605_ = 1
          else
          _605_ = nil
          end
          subexprs = compiler.compile1(ast[i], scope, parent, {nval = _605_})
          local tbl_17_ = operands
          local i_18_ = #tbl_17_
          for _, s in ipairs(subexprs) do
            local val_19_ = tostring(s)
            if (nil ~= val_19_) then
              i_18_ = (i_18_ + 1)
              tbl_17_[i_18_] = val_19_
            end
          end
        end
        if (#operands == 1) then
          if utils.root.options.useBitLib then
            return (prefixed_lib_name .. "(" .. unary_prefix .. ", " .. operands[1] .. ")")
          else
            return ("(" .. unary_prefix .. padded_native_name .. operands[1] .. ")")
          end
        else
          if utils.root.options.useBitLib then
            return (prefixed_lib_name .. "(" .. table.concat(operands, ", ") .. ")")
          else
            return ("(" .. table.concat(operands, padded_native_name) .. ")")
          end
        end
      end
    end
    local function define_bitop_special(name, zero_arity, unary_prefix, native)
      local function _612_(...)
        return bitop_special(native, name, zero_arity, unary_prefix, ...)
      end
      SPECIALS[name] = _612_
      return nil
    end
    define_bitop_special("lshift", nil, "1", "<<")
    define_bitop_special("rshift", nil, "1", ">>")
    define_bitop_special("band", "-1", "-1", "&")
    define_bitop_special("bor", "0", "0", "|")
    define_bitop_special("bxor", "0", "0", "~")
    doc_special("lshift", {"x", "n"}, "Bitwise logical left shift of x by n bits.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.")
    doc_special("rshift", {"x", "n"}, "Bitwise logical right shift of x by n bits.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.")
    doc_special("band", {"x1", "x2", "..."}, "Bitwise AND of any number of arguments.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.")
    doc_special("bor", {"x1", "x2", "..."}, "Bitwise OR of any number of arguments.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.")
    doc_special("bxor", {"x1", "x2", "..."}, "Bitwise XOR of any number of arguments.\nOnly works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.")
    SPECIALS.bnot = function(ast, scope, parent)
      compiler.assert((#ast == 2), "expected one argument", ast)
      local _613_ = compiler.compile1(ast[2], scope, parent, {nval = 1})
      local value = _613_[1]
      if utils.root.options.useBitLib then
        return ("bit.bnot(" .. tostring(value) .. ")")
      else
        return ("~(" .. tostring(value) .. ")")
      end
    end
    doc_special("bnot", {"x"}, "Bitwise negation; only works in Lua 5.3+ or LuaJIT with the --use-bit-lib flag.")
    doc_special("..", {"a", "b", "..."}, "String concatenation operator; works the same as Lua but accepts more arguments.")
    local function native_comparator(op, _615_0, scope, parent)
      local _616_ = _615_0
      local _ = _616_[1]
      local lhs_ast = _616_[2]
      local rhs_ast = _616_[3]
      local _617_ = compiler.compile1(lhs_ast, scope, parent, {nval = 1})
      local lhs = _617_[1]
      local _618_ = compiler.compile1(rhs_ast, scope, parent, {nval = 1})
      local rhs = _618_[1]
      return string.format("(%s %s %s)", tostring(lhs), op, tostring(rhs))
    end
    local function idempotent_comparator(op, chain_op, ast, scope, parent)
      local vals = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for i = 2, #ast do
          local val_19_ = str1(compiler.compile1(ast[i], scope, parent, {nval = 1}))
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        vals = tbl_17_
      end
      local comparisons = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for i = 1, (#vals - 1) do
          local val_19_ = string.format("(%s %s %s)", vals[i], op, vals[(i + 1)])
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        comparisons = tbl_17_
      end
      local chain = string.format(" %s ", (chain_op or "and"))
      return ("(" .. table.concat(comparisons, chain) .. ")")
    end
    local function binding_comparator(op, chain_op, ast, scope, parent)
      local binding_left = {}
      local binding_right = {}
      local vals = {}
      local chain = string.format(" %s ", (chain_op or "and"))
      for i = 2, #ast do
        local compiled = str1(compiler.compile1(ast[i], scope, parent, {nval = 1}))
        if (utils["idempotent-expr?"](ast[i]) or (i == 2) or (i == #ast)) then
          table.insert(vals, compiled)
        else
          local my_sym = compiler.gensym(scope)
          table.insert(binding_left, my_sym)
          table.insert(binding_right, compiled)
          table.insert(vals, my_sym)
        end
      end
      compiler.emit(parent, string.format("local %s = %s", table.concat(binding_left, ", "), table.concat(binding_right, ", "), ast))
      local _622_
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for i = 1, (#vals - 1) do
          local val_19_ = string.format("(%s %s %s)", vals[i], op, vals[(i + 1)])
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        _622_ = tbl_17_
      end
      return ("(" .. table.concat(_622_, chain) .. ")")
    end
    local function define_comparator_special(name, _3flua_op, _3fchain_op)
      do
        local op = (_3flua_op or name)
        local function opfn(ast, scope, parent)
          compiler.assert((2 < #ast), "expected at least two arguments", ast)
          local _624_0 = comparator_special_type(ast)
          if (_624_0 == "native") then
            return native_comparator(op, ast, scope, parent)
          elseif (_624_0 == "idempotent") then
            return idempotent_comparator(op, _3fchain_op, ast, scope, parent)
          elseif (_624_0 == "binding") then
            return binding_comparator(op, _3fchain_op, ast, scope, parent)
          else
            local _ = _624_0
            return error("internal compiler error. please report this to the fennel devs.")
          end
        end
        SPECIALS[name] = opfn
      end
      return doc_special(name, {"a", "b", "..."}, "Comparison operator; works the same as Lua but accepts more arguments.")
    end
    define_comparator_special(">")
    define_comparator_special("<")
    define_comparator_special(">=")
    define_comparator_special("<=")
    define_comparator_special("=", "==")
    define_comparator_special("not=", "~=", "or")
    local function define_unary_special(op, _3frealop)
      local function opfn(ast, scope, parent)
        compiler.assert((#ast == 2), "expected one argument", ast)
        local tail = compiler.compile1(ast[2], scope, parent, {nval = 1})
        return ((_3frealop or op) .. str1(tail))
      end
      SPECIALS[op] = opfn
      return nil
    end
    define_unary_special("not", "not ")
    doc_special("not", {"x"}, "Logical operator; works the same as Lua.")
    define_unary_special("length", "#")
    doc_special("length", {"x"}, "Returns the length of a table or string.")
    SPECIALS["~="] = SPECIALS["not="]
    SPECIALS["#"] = SPECIALS.length
    SPECIALS.quote = function(ast, scope, parent)
      compiler.assert((#ast == 2), "expected one argument", ast)
      local runtime, this_scope = true, scope
      while this_scope do
        this_scope = this_scope.parent
        if (this_scope == compiler.scopes.compiler) then
          runtime = false
        end
      end
      return compiler["do-quote"](ast[2], scope, parent, runtime)
    end
    doc_special("quote", {"x"}, "Quasiquote the following form. Only works in macro/compiler scope.")
    local macro_loaded = {}
    local function safe_getmetatable(tbl)
      local mt = getmetatable(tbl)
      assert((mt ~= getmetatable("")), "Illegal metatable access!")
      return mt
    end
    local safe_require = nil
    local function safe_compiler_env()
      local _628_
      do
        local _627_0 = rawget(_G, "utf8")
        if (nil ~= _627_0) then
          _628_ = utils.copy(_627_0)
        else
          _628_ = _627_0
        end
      end
      return {_VERSION = _VERSION, assert = assert, bit = rawget(_G, "bit"), error = error, getmetatable = safe_getmetatable, ipairs = ipairs, math = utils.copy(math), next = next, pairs = utils.stablepairs, pcall = pcall, print = print, rawequal = rawequal, rawget = rawget, rawlen = rawget(_G, "rawlen"), rawset = rawset, require = safe_require, select = select, setmetatable = setmetatable, string = utils.copy(string), table = utils.copy(table), tonumber = tonumber, tostring = tostring, type = type, utf8 = _628_, xpcall = xpcall}
    end
    local function combined_mt_pairs(env)
      local combined = {}
      local _630_ = getmetatable(env)
      local __index = _630_["__index"]
      if ("table" == type(__index)) then
        for k, v in pairs(__index) do
          combined[k] = v
        end
      end
      for k, v in next, env, nil do
        combined[k] = v
      end
      return next, combined, nil
    end
    local function make_compiler_env(ast, scope, parent, _3fopts)
      local provided = nil
      do
        local _632_0 = (_3fopts or utils.root.options)
        if ((_G.type(_632_0) == "table") and (_632_0["compiler-env"] == "strict")) then
          provided = safe_compiler_env()
        elseif ((_G.type(_632_0) == "table") and (nil ~= _632_0.compilerEnv)) then
          local compilerEnv = _632_0.compilerEnv
          provided = compilerEnv
        elseif ((_G.type(_632_0) == "table") and (nil ~= _632_0["compiler-env"])) then
          local compiler_env = _632_0["compiler-env"]
          provided = compiler_env
        else
          local _ = _632_0
          provided = safe_compiler_env()
        end
      end
      local env = nil
      local function _634_()
        return compiler.scopes.macro
      end
      local function _635_(symbol)
        compiler.assert(compiler.scopes.macro, "must call from macro", ast)
        return compiler.scopes.macro.manglings[tostring(symbol)]
      end
      local function _636_(base)
        return utils.sym(compiler.gensym((compiler.scopes.macro or scope), base))
      end
      local function _637_(form)
        compiler.assert(compiler.scopes.macro, "must call from macro", ast)
        return compiler.macroexpand(form, compiler.scopes.macro)
      end
      env = {["assert-compile"] = compiler.assert, ["ast-source"] = utils["ast-source"], ["comment?"] = utils["comment?"], ["fennel-module-name"] = fennel_module_name, ["get-scope"] = _634_, ["in-scope?"] = _635_, ["list?"] = utils["list?"], ["macro-loaded"] = macro_loaded, ["multi-sym?"] = utils["multi-sym?"], ["sequence?"] = utils["sequence?"], ["sym?"] = utils["sym?"], ["table?"] = utils["table?"], ["varg?"] = utils["varg?"], _AST = ast, _CHUNK = parent, _IS_COMPILER = true, _SCOPE = scope, _SPECIALS = compiler.scopes.global.specials, _VARARG = utils.varg(), comment = utils.comment, gensym = _636_, list = utils.list, macroexpand = _637_, sequence = utils.sequence, sym = utils.sym, unpack = unpack, version = utils.version, view = view}
      env._G = env
      return setmetatable(env, {__index = provided, __newindex = provided, __pairs = combined_mt_pairs})
    end
    local function _638_(...)
      local tbl_17_ = {}
      local i_18_ = #tbl_17_
      for c in string.gmatch((package.config or ""), "([^\n]+)") do
        local val_19_ = c
        if (nil ~= val_19_) then
          i_18_ = (i_18_ + 1)
          tbl_17_[i_18_] = val_19_
        end
      end
      return tbl_17_
    end
    local _640_ = _638_(...)
    local dirsep = _640_[1]
    local pathsep = _640_[2]
    local pathmark = _640_[3]
    local pkg_config = {dirsep = (dirsep or "/"), pathmark = (pathmark or "?"), pathsep = (pathsep or ";")}
    local function escapepat(str)
      return string.gsub(str, "[^%w]", "%%%1")
    end
    local function search_module(modulename, _3fpathstring)
      local pathsepesc = escapepat(pkg_config.pathsep)
      local pattern = ("([^%s]*)%s"):format(pathsepesc, pathsepesc)
      local no_dot_module = modulename:gsub("%.", pkg_config.dirsep)
      local fullpath = ((_3fpathstring or utils["fennel-module"].path) .. pkg_config.pathsep)
      local function try_path(path)
        local filename = path:gsub(escapepat(pkg_config.pathmark), no_dot_module)
        local filename2 = path:gsub(escapepat(pkg_config.pathmark), modulename)
        local _641_0 = (io.open(filename) or io.open(filename2))
        if (nil ~= _641_0) then
          local file = _641_0
          file:close()
          return filename
        else
          local _ = _641_0
          return nil, ("no file '" .. filename .. "'")
        end
      end
      local function find_in_path(start, _3ftried_paths)
        local _643_0 = fullpath:match(pattern, start)
        if (nil ~= _643_0) then
          local path = _643_0
          local _644_0, _645_0 = try_path(path)
          if (nil ~= _644_0) then
            local filename = _644_0
            return filename
          elseif ((_644_0 == nil) and (nil ~= _645_0)) then
            local error = _645_0
            local function _647_()
              local _646_0 = (_3ftried_paths or {})
              table.insert(_646_0, error)
              return _646_0
            end
            return find_in_path((start + #path + 1), _647_())
          end
        else
          local _ = _643_0
          local function _649_()
            local tried_paths = table.concat((_3ftried_paths or {}), "\n\9")
            if (_VERSION < "Lua 5.4") then
              return ("\n\9" .. tried_paths)
            else
              return tried_paths
            end
          end
          return nil, _649_()
        end
      end
      return find_in_path(1)
    end
    local function make_searcher(_3foptions)
      local function _652_(module_name)
        local opts = utils.copy(utils.root.options)
        for k, v in pairs((_3foptions or {})) do
          opts[k] = v
        end
        opts["module-name"] = module_name
        local _653_0, _654_0 = search_module(module_name)
        if (nil ~= _653_0) then
          local filename = _653_0
          local function _655_(...)
            return utils["fennel-module"].dofile(filename, opts, ...)
          end
          return _655_, filename
        elseif ((_653_0 == nil) and (nil ~= _654_0)) then
          local error = _654_0
          return error
        end
      end
      return _652_
    end
    local function dofile_with_searcher(fennel_macro_searcher, filename, opts, ...)
      local searchers = (package.loaders or package.searchers or {})
      local _ = table.insert(searchers, 1, fennel_macro_searcher)
      local m = utils["fennel-module"].dofile(filename, opts, ...)
      table.remove(searchers, 1)
      return m
    end
    local function fennel_macro_searcher(module_name)
      local opts = nil
      do
        local _657_0 = utils.copy(utils.root.options)
        _657_0["module-name"] = module_name
        _657_0["env"] = "_COMPILER"
        _657_0["requireAsInclude"] = false
        _657_0["allowedGlobals"] = nil
        opts = _657_0
      end
      local _658_0 = search_module(module_name, utils["fennel-module"]["macro-path"])
      if (nil ~= _658_0) then
        local filename = _658_0
        local _659_
        if (opts["compiler-env"] == _G) then
          local function _660_(...)
            return dofile_with_searcher(fennel_macro_searcher, filename, opts, ...)
          end
          _659_ = _660_
        else
          local function _661_(...)
            return utils["fennel-module"].dofile(filename, opts, ...)
          end
          _659_ = _661_
        end
        return _659_, filename
      end
    end
    local function lua_macro_searcher(module_name)
      local _664_0 = search_module(module_name, package.path)
      if (nil ~= _664_0) then
        local filename = _664_0
        local code = nil
        do
          local f = io.open(filename)
          local function close_handlers_10_(ok_11_, ...)
            f:close()
            if ok_11_ then
              return ...
            else
              return error(..., 0)
            end
          end
          local function _666_()
            return assert(f:read("*a"))
          end
          code = close_handlers_10_(_G.xpcall(_666_, (package.loaded.fennel or debug).traceback))
        end
        local chunk = load_code(code, make_compiler_env(), filename)
        return chunk, filename
      end
    end
    local macro_searchers = {fennel_macro_searcher, lua_macro_searcher}
    local function search_macro_module(modname, n)
      local _668_0 = macro_searchers[n]
      if (nil ~= _668_0) then
        local f = _668_0
        local _669_0, _670_0 = f(modname)
        if ((nil ~= _669_0) and true) then
          local loader = _669_0
          local _3ffilename = _670_0
          return loader, _3ffilename
        else
          local _ = _669_0
          return search_macro_module(modname, (n + 1))
        end
      end
    end
    local function sandbox_fennel_module(modname)
      if ((modname == "fennel.macros") or (package and package.loaded and ("table" == type(package.loaded[modname])) and (package.loaded[modname].metadata == compiler.metadata))) then
        local function _673_(_, ...)
          return (compiler.metadata):setall(...)
        end
        return {metadata = {setall = _673_}, view = view}
      end
    end
    local function _675_(modname)
      local function _676_()
        local loader, filename = search_macro_module(modname, 1)
        compiler.assert(loader, (modname .. " module not found."))
        macro_loaded[modname] = loader(modname, filename)
        return macro_loaded[modname]
      end
      return (macro_loaded[modname] or sandbox_fennel_module(modname) or _676_())
    end
    safe_require = _675_
    local function add_macros(macros_2a, ast, scope)
      compiler.assert(utils["table?"](macros_2a), "expected macros to be table", ast)
      for k, v in pairs(macros_2a) do
        compiler.assert((type(v) == "function"), "expected each macro to be function", ast)
        compiler["check-binding-valid"](utils.sym(k), scope, ast, {["macro?"] = true})
        scope.macros[k] = v
      end
      return nil
    end
    local function resolve_module_name(_677_0, _scope, _parent, opts)
      local _678_ = _677_0
      local second = _678_[2]
      local filename = _678_["filename"]
      local filename0 = (filename or (utils["table?"](second) and second.filename))
      local module_name = utils.root.options["module-name"]
      local modexpr = compiler.compile(second, opts)
      local modname_chunk = load_code(modexpr)
      return modname_chunk(module_name, filename0)
    end
    SPECIALS["require-macros"] = function(ast, scope, parent, _3freal_ast)
      compiler.assert((#ast == 2), "Expected one module name argument", (_3freal_ast or ast))
      local modname = resolve_module_name(ast, scope, parent, {})
      compiler.assert(utils["string?"](modname), "module name must compile to string", (_3freal_ast or ast))
      if not macro_loaded[modname] then
        local loader, filename = search_macro_module(modname, 1)
        compiler.assert(loader, (modname .. " module not found."), ast)
        macro_loaded[modname] = compiler.assert(utils["table?"](loader(modname, filename)), "expected macros to be table", (_3freal_ast or ast))
      end
      if ("import-macros" == str1(ast)) then
        return macro_loaded[modname]
      else
        return add_macros(macro_loaded[modname], ast, scope)
      end
    end
    doc_special("require-macros", {"macro-module-name"}, "Load given module and use its contents as macro definitions in current scope.\nDeprecated.")
    local function emit_included_fennel(src, path, opts, sub_chunk)
      local subscope = compiler["make-scope"](utils.root.scope.parent)
      local forms = {}
      if utils.root.options.requireAsInclude then
        subscope.specials.require = compiler["require-include"]
      end
      for _, val in parser.parser(parser["string-stream"](src), path) do
        table.insert(forms, val)
      end
      for i = 1, #forms do
        local subopts = nil
        if (i == #forms) then
          subopts = {tail = true}
        else
          subopts = {nval = 0}
        end
        utils["propagate-options"](opts, subopts)
        compiler.compile1(forms[i], subscope, sub_chunk, subopts)
      end
      return nil
    end
    local function include_path(ast, opts, path, mod, fennel_3f)
      utils.root.scope.includes[mod] = "fnl/loading"
      local src = nil
      do
        local f = assert(io.open(path))
        local function close_handlers_10_(ok_11_, ...)
          f:close()
          if ok_11_ then
            return ...
          else
            return error(..., 0)
          end
        end
        local function _684_()
          return assert(f:read("*all")):gsub("[\13\n]*$", "")
        end
        src = close_handlers_10_(_G.xpcall(_684_, (package.loaded.fennel or debug).traceback))
      end
      local ret = utils.expr(("require(\"" .. mod .. "\")"), "statement")
      local target = ("package.preload[%q]"):format(mod)
      local preload_str = (target .. " = " .. target .. " or function(...)")
      local temp_chunk, sub_chunk = {}, {}
      compiler.emit(temp_chunk, preload_str, ast)
      compiler.emit(temp_chunk, sub_chunk)
      compiler.emit(temp_chunk, "end", ast)
      for _, v in ipairs(temp_chunk) do
        table.insert(utils.root.chunk, v)
      end
      if fennel_3f then
        emit_included_fennel(src, path, opts, sub_chunk)
      else
        compiler.emit(sub_chunk, src, ast)
      end
      utils.root.scope.includes[mod] = ret
      return ret
    end
    local function include_circular_fallback(mod, modexpr, fallback, ast)
      if (utils.root.scope.includes[mod] == "fnl/loading") then
        compiler.assert(fallback, "circular include detected", ast)
        return fallback(modexpr)
      end
    end
    SPECIALS.include = function(ast, scope, parent, opts)
      compiler.assert((#ast == 2), "expected one argument", ast)
      local modexpr = nil
      do
        local _687_0, _688_0 = pcall(resolve_module_name, ast, scope, parent, opts)
        if ((_687_0 == true) and (nil ~= _688_0)) then
          local modname = _688_0
          modexpr = utils.expr(string.format("%q", modname), "literal")
        else
          local _ = _687_0
          modexpr = compiler.compile1(ast[2], scope, parent, {nval = 1})[1]
        end
      end
      if ((modexpr.type ~= "literal") or ((modexpr[1]):byte() ~= 34)) then
        if opts.fallback then
          return opts.fallback(modexpr)
        else
          return compiler.assert(false, "module name must be string literal", ast)
        end
      else
        local mod = load_code(("return " .. modexpr[1]))()
        local oldmod = utils.root.options["module-name"]
        local _ = nil
        utils.root.options["module-name"] = mod
        _ = nil
        local res = nil
        local function _692_()
          local _691_0 = search_module(mod)
          if (nil ~= _691_0) then
            local fennel_path = _691_0
            return include_path(ast, opts, fennel_path, mod, true)
          else
            local _0 = _691_0
            local lua_path = search_module(mod, package.path)
            if lua_path then
              return include_path(ast, opts, lua_path, mod, false)
            elseif opts.fallback then
              return opts.fallback(modexpr)
            else
              return compiler.assert(false, ("module not found " .. mod), ast)
            end
          end
        end
        res = ((utils["member?"](mod, (utils.root.options.skipInclude or {})) and opts.fallback(modexpr, true)) or include_circular_fallback(mod, modexpr, opts.fallback, ast) or utils.root.scope.includes[mod] or _692_())
        utils.root.options["module-name"] = oldmod
        return res
      end
    end
    doc_special("include", {"module-name-literal"}, "Like require but load the target module during compilation and embed it in the\nLua output. The module must be a string literal and resolvable at compile time.")
    local function eval_compiler_2a(ast, scope, parent)
      local env = make_compiler_env(ast, scope, parent)
      local opts = utils.copy(utils.root.options)
      opts.scope = compiler["make-scope"](compiler.scopes.compiler)
      opts.allowedGlobals = current_global_names(env)
      return assert(load_code(compiler.compile(ast, opts), wrap_env(env)))(opts["module-name"], ast.filename)
    end
    SPECIALS.macros = function(ast, scope, parent)
      compiler.assert((#ast == 2), "Expected one table argument", ast)
      local macro_tbl = eval_compiler_2a(ast[2], scope, parent)
      compiler.assert(utils["table?"](macro_tbl), "Expected one table argument", ast)
      return add_macros(macro_tbl, ast, scope)
    end
    doc_special("macros", {"{:macro-name-1 (fn [...] ...) ... :macro-name-N macro-body-N}"}, "Define all functions in the given table as macros local to the current scope.")
    SPECIALS["tail!"] = function(ast, scope, parent, opts)
      compiler.assert((#ast == 2), "Expected one argument", ast)
      local call = utils["list?"](compiler.macroexpand(ast[2], scope))
      local callee = tostring((call and utils["sym?"](call[1])))
      compiler.assert((call and not scope.specials[callee]), "Expected a function call as argument", ast)
      compiler.assert(opts.tail, "Must be in tail position", ast)
      return compiler.compile1(call, scope, parent, opts)
    end
    doc_special("tail!", {"body"}, "Assert that the body being called is in tail position.")
    SPECIALS["pick-values"] = function(ast, scope, parent)
      local n = ast[2]
      local vals = utils.list(utils.sym("values"), unpack(ast, 3))
      compiler.assert((("number" == type(n)) and (0 <= n) and (n == math.floor(n))), ("Expected n to be an integer >= 0, got " .. tostring(n)))
      if (1 == n) then
        local _696_ = compiler.compile1(vals, scope, parent, {nval = 1})
        local _697_ = _696_[1]
        local expr = _697_[1]
        return {("(" .. expr .. ")")}
      elseif (0 == n) then
        for i = 3, #ast do
          compiler["keep-side-effects"](compiler.compile1(ast[i], scope, parent, {nval = 0}), parent, nil, ast[i])
        end
        return {}
      else
        local syms = nil
        do
          local tbl_17_ = utils.list()
          local i_18_ = #tbl_17_
          for _ = 1, n do
            local val_19_ = utils.sym(compiler.gensym(scope, "pv"))
            if (nil ~= val_19_) then
              i_18_ = (i_18_ + 1)
              tbl_17_[i_18_] = val_19_
            end
          end
          syms = tbl_17_
        end
        compiler.destructure(syms, vals, ast, scope, parent, {declaration = true, nomulti = true, noundef = true, symtype = "pv"})
        return syms
      end
    end
    doc_special("pick-values", {"n", "..."}, "Evaluate to exactly n values.\n\nFor example,\n  (pick-values 2 ...)\nexpands to\n  (let [(_0_ _1_) ...]\n    (values _0_ _1_))")
    SPECIALS["eval-compiler"] = function(ast, scope, parent)
      local old_first = ast[1]
      ast[1] = utils.sym("do")
      local val = eval_compiler_2a(ast, scope, parent)
      ast[1] = old_first
      return val
    end
    doc_special("eval-compiler", {"..."}, "Evaluate the body at compile-time. Use the macro system instead if possible.", true)
    SPECIALS.unquote = function(ast)
      return compiler.assert(false, "tried to use unquote outside quote", ast)
    end
    doc_special("unquote", {"..."}, "Evaluate the argument even if it's in a quoted form.")
    return {["current-global-names"] = current_global_names, ["get-function-metadata"] = get_function_metadata, ["load-code"] = load_code, ["macro-loaded"] = macro_loaded, ["macro-searchers"] = macro_searchers, ["make-compiler-env"] = make_compiler_env, ["make-searcher"] = make_searcher, ["search-module"] = search_module, ["wrap-env"] = wrap_env, doc = doc_2a}
  end
  package.preload["fennel.compiler"] = package.preload["fennel.compiler"] or function(...)
    local utils = require("fennel.utils")
    local parser = require("fennel.parser")
    local friend = require("fennel.friend")
    local view = require("fennel.view")
    local unpack = (table.unpack or _G.unpack)
    local scopes = {compiler = nil, global = nil, macro = nil}
    local function make_scope(_3fparent)
      local parent = (_3fparent or scopes.global)
      local _275_
      if parent then
        _275_ = ((parent.depth or 0) + 1)
      else
        _275_ = 0
      end
      return {["gensym-base"] = setmetatable({}, {__index = (parent and parent["gensym-base"])}), autogensyms = setmetatable({}, {__index = (parent and parent.autogensyms)}), depth = _275_, gensyms = setmetatable({}, {__index = (parent and parent.gensyms)}), hashfn = (parent and parent.hashfn), includes = setmetatable({}, {__index = (parent and parent.includes)}), macros = setmetatable({}, {__index = (parent and parent.macros)}), manglings = setmetatable({}, {__index = (parent and parent.manglings)}), parent = parent, refedglobals = {}, specials = setmetatable({}, {__index = (parent and parent.specials)}), symmeta = setmetatable({}, {__index = (parent and parent.symmeta)}), unmanglings = setmetatable({}, {__index = (parent and parent.unmanglings)}), vararg = (parent and parent.vararg)}
    end
    local function assert_msg(ast, msg)
      local ast_tbl = nil
      if ("table" == type(ast)) then
        ast_tbl = ast
      else
        ast_tbl = {}
      end
      local m = getmetatable(ast)
      local filename = ((m and m.filename) or ast_tbl.filename or "unknown")
      local line = ((m and m.line) or ast_tbl.line or "?")
      local col = ((m and m.col) or ast_tbl.col or "?")
      local target = tostring((utils["sym?"](ast_tbl[1]) or ast_tbl[1] or "()"))
      return string.format("%s:%s:%s: Compile error in '%s': %s", filename, line, col, target, msg)
    end
    local function assert_compile(condition, msg, ast, _3ffallback_ast)
      if not condition then
        local _278_ = (utils.root.options or {})
        local error_pinpoint = _278_["error-pinpoint"]
        local source = _278_["source"]
        local unfriendly = _278_["unfriendly"]
        local ast0 = nil
        if next(utils["ast-source"](ast)) then
          ast0 = ast
        else
          ast0 = (_3ffallback_ast or {})
        end
        if (nil == utils.hook("assert-compile", condition, msg, ast0, utils.root.reset)) then
          utils.root.reset()
          if unfriendly then
            error(assert_msg(ast0, msg), 0)
          else
            friend["assert-compile"](condition, msg, ast0, source, {["error-pinpoint"] = error_pinpoint})
          end
        end
      end
      return condition
    end
    scopes.global = make_scope()
    scopes.global.vararg = true
    scopes.compiler = make_scope(scopes.global)
    scopes.macro = scopes.global
    local function serialize_string(str)
      local function _283_(_241)
        return ("\\" .. _241:byte())
      end
      return string.gsub(string.gsub(string.gsub(string.format("%q", str), "\\\n", "\\n"), "\\9", "\\t"), "[\128-\255]", _283_)
    end
    local function global_mangling(str)
      if utils["valid-lua-identifier?"](str) then
        return str
      else
        local function _284_(_241)
          return string.format("_%02x", _241:byte())
        end
        return ("__fnl_global__" .. str:gsub("[^%w]", _284_))
      end
    end
    local function global_unmangling(identifier)
      local _286_0 = string.match(identifier, "^__fnl_global__(.*)$")
      if (nil ~= _286_0) then
        local rest = _286_0
        local _287_0 = nil
        local function _288_(_241)
          return string.char(tonumber(_241:sub(2), 16))
        end
        _287_0 = string.gsub(rest, "_[%da-f][%da-f]", _288_)
        return _287_0
      else
        local _ = _286_0
        return identifier
      end
    end
    local function global_allowed_3f(name)
      local allowed = nil
      do
        local _290_0 = utils.root.options
        if (nil ~= _290_0) then
          _290_0 = _290_0.allowedGlobals
        end
        allowed = _290_0
      end
      return (not allowed or utils["member?"](name, allowed))
    end
    local function unique_mangling(original, mangling, scope, append)
      if scope.unmanglings[mangling] then
        return unique_mangling(original, (original .. append), scope, (append + 1))
      else
        return mangling
      end
    end
    local function apply_deferred_scope_changes(scope, deferred_scope_changes, ast)
      for raw, mangled in pairs(deferred_scope_changes.manglings) do
        assert_compile(not scope.refedglobals[mangled], ("use of global " .. raw .. " is aliased by a local"), ast)
        scope.manglings[raw] = mangled
      end
      for raw, symmeta in pairs(deferred_scope_changes.symmeta) do
        scope.symmeta[raw] = symmeta
      end
      return nil
    end
    local function combine_parts(parts, scope)
      local ret = (scope.manglings[parts[1]] or global_mangling(parts[1]))
      for i = 2, #parts do
        if utils["valid-lua-identifier?"](parts[i]) then
          if (parts["multi-sym-method-call"] and (i == #parts)) then
            ret = (ret .. ":" .. parts[i])
          else
            ret = (ret .. "." .. parts[i])
          end
        else
          ret = (ret .. "[" .. serialize_string(parts[i]) .. "]")
        end
      end
      return ret
    end
    local function root_scope(scope)
      return ((utils.root and utils.root.scope) or (scope.parent and root_scope(scope.parent)) or scope)
    end
    local function next_append(root_scope_2a)
      root_scope_2a["gensym-append"] = ((root_scope_2a["gensym-append"] or 0) + 1)
      return ("_" .. root_scope_2a["gensym-append"] .. "_")
    end
    local function gensym(scope, _3fbase, _3fsuffix)
      local root_scope_2a = root_scope(scope)
      local mangling = ((_3fbase or "") .. next_append(root_scope_2a) .. (_3fsuffix or ""))
      while scope.unmanglings[mangling] do
        mangling = ((_3fbase or "") .. next_append(root_scope_2a) .. (_3fsuffix or ""))
      end
      if (_3fbase and (0 < #_3fbase)) then
        scope["gensym-base"][mangling] = _3fbase
      end
      scope.gensyms[mangling] = true
      return mangling
    end
    local function combine_auto_gensym(parts, first)
      parts[1] = first
      local last = table.remove(parts)
      local last2 = table.remove(parts)
      local last_joiner = ((parts["multi-sym-method-call"] and ":") or ".")
      table.insert(parts, (last2 .. last_joiner .. last))
      return table.concat(parts, ".")
    end
    local function autogensym(base, scope)
      local _296_0 = utils["multi-sym?"](base)
      if (nil ~= _296_0) then
        local parts = _296_0
        return combine_auto_gensym(parts, autogensym(parts[1], scope))
      else
        local _ = _296_0
        local function _297_()
          local mangling = gensym(scope, base:sub(1, -2), "auto")
          scope.autogensyms[base] = mangling
          return mangling
        end
        return (scope.autogensyms[base] or _297_())
      end
    end
    local function check_binding_valid(symbol, scope, ast, _3fopts)
      local name = tostring(symbol)
      local macro_3f = nil
      do
        local _299_0 = _3fopts
        if (nil ~= _299_0) then
          _299_0 = _299_0["macro?"]
        end
        macro_3f = _299_0
      end
      assert_compile(("&" ~= name:match("[&.:]")), "invalid character: &", symbol)
      assert_compile(not name:find("^%."), "invalid character: .", symbol)
      assert_compile(not (scope.specials[name] or (not macro_3f and scope.macros[name])), ("local %s was overshadowed by a special form or macro"):format(name), ast)
      return assert_compile(not utils["quoted?"](symbol), string.format("macro tried to bind %s without gensym", name), symbol)
    end
    local function declare_local(symbol, scope, ast, _3fvar_3f, _3fdeferred_scope_changes)
      check_binding_valid(symbol, scope, ast)
      assert_compile(not utils["multi-sym?"](symbol), ("unexpected multi symbol " .. tostring(symbol)), ast)
      local str = tostring(symbol)
      local raw = nil
      if (utils["lua-keyword?"](str) or str:match("^%d")) then
        raw = ("_" .. str)
      else
        raw = str
      end
      local mangling = nil
      local function _302_(_241)
        return string.format("_%02x", _241:byte())
      end
      mangling = string.gsub(string.gsub(raw, "-", "_"), "[^%w_]", _302_)
      local unique = unique_mangling(mangling, mangling, scope, 0)
      scope.unmanglings[unique] = (scope["gensym-base"][str] or str)
      do
        local target = (_3fdeferred_scope_changes or scope)
        target.manglings[str] = unique
        target.symmeta[str] = {symbol = symbol, var = _3fvar_3f}
      end
      return unique
    end
    local function hashfn_arg_name(name, multi_sym_parts, scope)
      if not scope.hashfn then
        return nil
      elseif (name == "$") then
        return "$1"
      elseif multi_sym_parts then
        if (multi_sym_parts and (multi_sym_parts[1] == "$")) then
          multi_sym_parts[1] = "$1"
        end
        return table.concat(multi_sym_parts, ".")
      end
    end
    local function symbol_to_expression(symbol, scope, _3freference_3f)
      utils.hook("symbol-to-expression", symbol, scope, _3freference_3f)
      local name = symbol[1]
      local multi_sym_parts = utils["multi-sym?"](name)
      local name0 = (hashfn_arg_name(name, multi_sym_parts, scope) or name)
      local parts = (multi_sym_parts or {name0})
      local etype = (((1 < #parts) and "expression") or "sym")
      local local_3f = scope.manglings[parts[1]]
      if (local_3f and scope.symmeta[parts[1]]) then
        scope.symmeta[parts[1]]["used"] = true
        symbol.referent = scope.symmeta[parts[1]].symbol
      end
      assert_compile(not scope.macros[parts[1]], "tried to reference a macro without calling it", symbol)
      assert_compile((not scope.specials[parts[1]] or ("require" == parts[1])), "tried to reference a special form without calling it", symbol)
      assert_compile((not _3freference_3f or local_3f or ("_ENV" == parts[1]) or global_allowed_3f(parts[1])), ("unknown identifier: " .. tostring(parts[1])), symbol)
      local function _307_()
        local _306_0 = utils.root.options
        if (nil ~= _306_0) then
          _306_0 = _306_0.allowedGlobals
        end
        return _306_0
      end
      if (_307_() and not local_3f and scope.parent) then
        scope.parent.refedglobals[parts[1]] = true
      end
      return utils.expr(combine_parts(parts, scope), etype)
    end
    local function emit(chunk, out, _3fast)
      if (type(out) == "table") then
        return table.insert(chunk, out)
      else
        return table.insert(chunk, {ast = _3fast, leaf = out})
      end
    end
    local function peephole(chunk)
      if chunk.leaf then
        return chunk
      elseif ((3 <= #chunk) and (chunk[(#chunk - 2)].leaf == "do") and not chunk[(#chunk - 1)].leaf and (chunk[#chunk].leaf == "end")) then
        local kid = peephole(chunk[(#chunk - 1)])
        local new_chunk = {ast = chunk.ast}
        for i = 1, (#chunk - 3) do
          table.insert(new_chunk, peephole(chunk[i]))
        end
        for i = 1, #kid do
          table.insert(new_chunk, kid[i])
        end
        return new_chunk
      else
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for _, x in ipairs(chunk) do
          local val_19_ = peephole(x)
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        return tbl_17_
      end
    end
    local function flatten_chunk_correlated(main_chunk, options)
      local function flatten(chunk, out, last_line, file)
        local last_line0 = last_line
        if chunk.leaf then
          out[last_line0] = ((out[last_line0] or "") .. " " .. chunk.leaf)
        else
          for _, subchunk in ipairs(chunk) do
            if (subchunk.leaf or next(subchunk)) then
              local source = utils["ast-source"](subchunk.ast)
              if (file == source.filename) then
                last_line0 = math.max(last_line0, (source.line or 0))
              end
              last_line0 = flatten(subchunk, out, last_line0, file)
            end
          end
        end
        return last_line0
      end
      local out = {}
      local last = flatten(main_chunk, out, 1, options.filename)
      for i = 1, last do
        if (out[i] == nil) then
          out[i] = ""
        end
      end
      return table.concat(out, "\n")
    end
    local function flatten_chunk(file_sourcemap, chunk, tab, depth)
      if chunk.leaf then
        local _317_ = utils["ast-source"](chunk.ast)
        local endline = _317_["endline"]
        local filename = _317_["filename"]
        local line = _317_["line"]
        if ("end" == chunk.leaf) then
          table.insert(file_sourcemap, {filename, (endline or line)})
        else
          table.insert(file_sourcemap, {filename, line})
        end
        return chunk.leaf
      else
        local tab0 = nil
        do
          local _319_0 = tab
          if (_319_0 == true) then
            tab0 = "  "
          elseif (_319_0 == false) then
            tab0 = ""
          elseif (nil ~= _319_0) then
            local tab1 = _319_0
            tab0 = tab1
          elseif (_319_0 == nil) then
            tab0 = ""
          else
          tab0 = nil
          end
        end
        local _321_
        do
          local tbl_17_ = {}
          local i_18_ = #tbl_17_
          for _, c in ipairs(chunk) do
            local val_19_ = nil
            if (c.leaf or next(c)) then
              local sub = flatten_chunk(file_sourcemap, c, tab0, (depth + 1))
              if (0 < depth) then
                val_19_ = (tab0 .. sub:gsub("\n", ("\n" .. tab0)))
              else
                val_19_ = sub
              end
            else
            val_19_ = nil
            end
            if (nil ~= val_19_) then
              i_18_ = (i_18_ + 1)
              tbl_17_[i_18_] = val_19_
            end
          end
          _321_ = tbl_17_
        end
        return table.concat(_321_, "\n")
      end
    end
    local sourcemap = {}
    local function make_short_src(source)
      local source0 = source:gsub("\n", " ")
      if (#source0 <= 49) then
        return ("[fennel \"" .. source0 .. "\"]")
      else
        return ("[fennel \"" .. source0:sub(1, 46) .. "...\"]")
      end
    end
    local function flatten(chunk, options)
      local chunk0 = peephole(chunk)
      local indent = (options.indent or "  ")
      if options.correlate then
        return flatten_chunk_correlated(chunk0, options), {}
      else
        local file_sourcemap = {}
        local src = flatten_chunk(file_sourcemap, chunk0, indent, 0)
        file_sourcemap.short_src = (options.filename or make_short_src((options.source or src)))
        if options.filename then
          file_sourcemap.key = ("@" .. options.filename)
        else
          file_sourcemap.key = src
        end
        sourcemap[file_sourcemap.key] = file_sourcemap
        return src, file_sourcemap
      end
    end
    local function make_metadata()
      local function _329_(self, tgt, _3fkey)
        if self[tgt] then
          if (nil ~= _3fkey) then
            return self[tgt][_3fkey]
          else
            return self[tgt]
          end
        end
      end
      local function _332_(self, tgt, key, value)
        self[tgt] = (self[tgt] or {})
        self[tgt][key] = value
        return tgt
      end
      local function _333_(self, tgt, ...)
        local kv_len = select("#", ...)
        local kvs = {...}
        if ((kv_len % 2) ~= 0) then
          error("metadata:setall() expected even number of k/v pairs")
        end
        self[tgt] = (self[tgt] or {})
        for i = 1, kv_len, 2 do
          self[tgt][kvs[i]] = kvs[(i + 1)]
        end
        return tgt
      end
      return setmetatable({}, {__index = {get = _329_, set = _332_, setall = _333_}, __mode = "k"})
    end
    local function exprs1(exprs)
      local _335_
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for _, e in ipairs(exprs) do
          local val_19_ = tostring(e)
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        _335_ = tbl_17_
      end
      return table.concat(_335_, ", ")
    end
    local function keep_side_effects(exprs, chunk, _3fstart, ast)
      for j = (_3fstart or 1), #exprs do
        local subexp = exprs[j]
        if ((subexp.type == "expression") and (subexp[1] ~= "nil")) then
          emit(chunk, ("do local _ = %s end"):format(tostring(subexp)), ast)
        elseif (subexp.type == "statement") then
          local code = tostring(subexp)
          local disambiguated = nil
          if (code:byte() == 40) then
            disambiguated = ("do end " .. code)
          else
            disambiguated = code
          end
          emit(chunk, disambiguated, ast)
        end
      end
      return nil
    end
    local function handle_compile_opts(exprs, parent, opts, ast)
      if opts.nval then
        local n = opts.nval
        local len = #exprs
        if (n ~= len) then
          if (n < len) then
            keep_side_effects(exprs, parent, (n + 1), ast)
            for i = (n + 1), len do
              exprs[i] = nil
            end
          else
            for i = (#exprs + 1), n do
              exprs[i] = utils.expr("nil", "literal")
            end
          end
        end
      end
      if opts.tail then
        emit(parent, string.format("return %s", exprs1(exprs)), ast)
      end
      if opts.target then
        local result = exprs1(exprs)
        local function _343_()
          if (result == "") then
            return "nil"
          else
            return result
          end
        end
        emit(parent, string.format("%s = %s", opts.target, _343_()), ast)
      end
      if (opts.tail or opts.target) then
        return {returned = true}
      else
        exprs["returned"] = true
        return exprs
      end
    end
    local function find_macro(ast, scope)
      local macro_2a = nil
      do
        local _346_0 = utils["sym?"](ast[1])
        if (_346_0 ~= nil) then
          local _347_0 = tostring(_346_0)
          if (_347_0 ~= nil) then
            macro_2a = scope.macros[_347_0]
          else
            macro_2a = _347_0
          end
        else
          macro_2a = _346_0
        end
      end
      local multi_sym_parts = utils["multi-sym?"](ast[1])
      if (not macro_2a and multi_sym_parts) then
        local nested_macro = utils["get-in"](scope.macros, multi_sym_parts)
        assert_compile((not scope.macros[multi_sym_parts[1]] or (type(nested_macro) == "function")), "macro not found in imported macro module", ast)
        return nested_macro
      else
        return macro_2a
      end
    end
    local function propagate_trace_info(_351_0, _index, node)
      local _352_ = _351_0
      local byteend = _352_["byteend"]
      local bytestart = _352_["bytestart"]
      local filename = _352_["filename"]
      local line = _352_["line"]
      do
        local src = utils["ast-source"](node)
        if (("table" == type(node)) and (filename ~= src.filename)) then
          src.filename, src.line, src["from-macro?"] = filename, line, true
          src.bytestart, src.byteend = bytestart, byteend
        end
      end
      return ("table" == type(node))
    end
    local function quote_literal_nils(index, node, parent)
      if (parent and utils["list?"](parent)) then
        for i = 1, utils.maxn(parent) do
          local _354_0 = parent[i]
          if (_354_0 == nil) then
            parent[i] = utils.sym("nil")
          end
        end
      end
      return index, node, parent
    end
    local function built_in_3f(m)
      local found_3f = false
      for _, f in pairs(scopes.global.macros) do
        if found_3f then break end
        found_3f = (f == m)
      end
      return found_3f
    end
    local function macroexpand_2a(ast, scope, _3fonce)
      local _357_0 = nil
      if utils["list?"](ast) then
        _357_0 = find_macro(ast, scope)
      else
      _357_0 = nil
      end
      if (_357_0 == false) then
        return ast
      elseif (nil ~= _357_0) then
        local macro_2a = _357_0
        local old_scope = scopes.macro
        local _ = nil
        scopes.macro = scope
        _ = nil
        local ok, transformed = nil, nil
        local function _359_()
          return macro_2a(unpack(ast, 2))
        end
        local function _360_()
          if built_in_3f(macro_2a) then
            return tostring
          else
            return debug.traceback
          end
        end
        ok, transformed = xpcall(_359_, _360_())
        local function _361_(...)
          return propagate_trace_info(ast, quote_literal_nils(...))
        end
        utils["walk-tree"](transformed, _361_)
        scopes.macro = old_scope
        assert_compile(ok, transformed, ast)
        utils.hook("macroexpand", ast, transformed, scope)
        if (_3fonce or not transformed) then
          return transformed
        else
          return macroexpand_2a(transformed, scope)
        end
      else
        local _ = _357_0
        return ast
      end
    end
    local function compile_special(ast, scope, parent, opts, special)
      local exprs = (special(ast, scope, parent, opts) or utils.expr("nil", "literal"))
      local exprs0 = nil
      if ("table" ~= type(exprs)) then
        exprs0 = utils.expr(exprs, "expression")
      else
        exprs0 = exprs
      end
      local exprs2 = nil
      if utils["expr?"](exprs0) then
        exprs2 = {exprs0}
      else
        exprs2 = exprs0
      end
      if not exprs2.returned then
        return handle_compile_opts(exprs2, parent, opts, ast)
      elseif (opts.tail or opts.target) then
        return {returned = true}
      else
        return exprs2
      end
    end
    local function callable_3f(_367_0, ctype, callee)
      local _368_ = _367_0
      local call_ast = _368_[1]
      if ("literal" == ctype) then
        return ("\"" == string.sub(callee, 1, 1))
      else
        return (utils["sym?"](call_ast) or utils["list?"](call_ast))
      end
    end
    local function compile_function_call(ast, scope, parent, opts, compile1, len)
      local _370_ = compile1(ast[1], scope, parent, {nval = 1})[1]
      local callee = _370_[1]
      local ctype = _370_["type"]
      local fargs = {}
      assert_compile(callable_3f(ast, ctype, callee), ("cannot call literal value " .. tostring(ast[1])), ast)
      for i = 2, len do
        local subexprs = nil
        local _371_
        if (i ~= len) then
          _371_ = 1
        else
        _371_ = nil
        end
        subexprs = compile1(ast[i], scope, parent, {nval = _371_})
        table.insert(fargs, subexprs[1])
        if (i == len) then
          for j = 2, #subexprs do
            table.insert(fargs, subexprs[j])
          end
        else
          keep_side_effects(subexprs, parent, 2, ast[i])
        end
      end
      local pat = nil
      if ("literal" == ctype) then
        pat = "(%s)(%s)"
      else
        pat = "%s(%s)"
      end
      local call = string.format(pat, tostring(callee), exprs1(fargs))
      return handle_compile_opts({utils.expr(call, "statement")}, parent, opts, ast)
    end
    local function compile_call(ast, scope, parent, opts, compile1)
      utils.hook("call", ast, scope)
      local len = #ast
      local first = ast[1]
      local multi_sym_parts = utils["multi-sym?"](first)
      local special = (utils["sym?"](first) and scope.specials[tostring(first)])
      assert_compile((0 < len), "expected a function, macro, or special to call", ast)
      if special then
        return compile_special(ast, scope, parent, opts, special)
      elseif (multi_sym_parts and multi_sym_parts["multi-sym-method-call"]) then
        local table_with_method = table.concat({unpack(multi_sym_parts, 1, (#multi_sym_parts - 1))}, ".")
        local method_to_call = multi_sym_parts[#multi_sym_parts]
        local new_ast = utils.list(utils.sym(":", ast), utils.sym(table_with_method, ast), method_to_call, select(2, unpack(ast)))
        return compile1(new_ast, scope, parent, opts)
      else
        return compile_function_call(ast, scope, parent, opts, compile1, len)
      end
    end
    local function compile_varg(ast, scope, parent, opts)
      local _376_
      if scope.hashfn then
        _376_ = "use $... in hashfn"
      else
        _376_ = "unexpected vararg"
      end
      assert_compile(scope.vararg, _376_, ast)
      return handle_compile_opts({utils.expr("...", "varg")}, parent, opts, ast)
    end
    local function compile_sym(ast, scope, parent, opts)
      local multi_sym_parts = utils["multi-sym?"](ast)
      assert_compile(not (multi_sym_parts and multi_sym_parts["multi-sym-method-call"]), "multisym method calls may only be in call position", ast)
      local e = nil
      if (ast[1] == "nil") then
        e = utils.expr("nil", "literal")
      else
        e = symbol_to_expression(ast, scope, true)
      end
      return handle_compile_opts({e}, parent, opts, ast)
    end
    local view_opts = nil
    do
      local nan = tostring((0 / 0))
      local _379_
      if (45 == nan:byte()) then
        _379_ = "(0/0)"
      else
        _379_ = "(- (0/0))"
      end
      local _381_
      if (45 == nan:byte()) then
        _381_ = "(- (0/0))"
      else
        _381_ = "(0/0)"
      end
      view_opts = {["negative-infinity"] = "(-1/0)", ["negative-nan"] = _379_, infinity = "(1/0)", nan = _381_}
    end
    local function compile_scalar(ast, _scope, parent, opts)
      local compiled = nil
      do
        local _383_0 = type(ast)
        if (_383_0 == "nil") then
          compiled = "nil"
        elseif (_383_0 == "boolean") then
          compiled = tostring(ast)
        elseif (_383_0 == "string") then
          compiled = serialize_string(ast)
        elseif (_383_0 == "number") then
          compiled = view(ast, view_opts)
        else
        compiled = nil
        end
      end
      return handle_compile_opts({utils.expr(compiled, "literal")}, parent, opts)
    end
    local function compile_table(ast, scope, parent, opts, compile1)
      local function escape_key(k)
        if ((type(k) == "string") and utils["valid-lua-identifier?"](k)) then
          return k
        else
          local _385_ = compile1(k, scope, parent, {nval = 1})
          local compiled = _385_[1]
          return ("[" .. tostring(compiled) .. "]")
        end
      end
      local keys = {}
      local buffer = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for i, elem in ipairs(ast) do
          local val_19_ = nil
          do
            local nval = ((nil ~= ast[(i + 1)]) and 1)
            keys[i] = true
            val_19_ = exprs1(compile1(elem, scope, parent, {nval = nval}))
          end
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        buffer = tbl_17_
      end
      do
        local tbl_17_ = buffer
        local i_18_ = #tbl_17_
        for k in utils.stablepairs(ast) do
          local val_19_ = nil
          if not keys[k] then
            local _388_ = compile1(ast[k], scope, parent, {nval = 1})
            local v = _388_[1]
            val_19_ = string.format("%s = %s", escape_key(k), tostring(v))
          else
          val_19_ = nil
          end
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
      end
      return handle_compile_opts({utils.expr(("{" .. table.concat(buffer, ", ") .. "}"), "expression")}, parent, opts, ast)
    end
    local function compile1(ast, scope, parent, _3fopts)
      local opts = (_3fopts or {})
      local ast0 = macroexpand_2a(ast, scope)
      if utils["list?"](ast0) then
        return compile_call(ast0, scope, parent, opts, compile1)
      elseif utils["varg?"](ast0) then
        return compile_varg(ast0, scope, parent, opts)
      elseif utils["sym?"](ast0) then
        return compile_sym(ast0, scope, parent, opts)
      elseif (type(ast0) == "table") then
        return compile_table(ast0, scope, parent, opts, compile1)
      elseif ((type(ast0) == "nil") or (type(ast0) == "boolean") or (type(ast0) == "number") or (type(ast0) == "string")) then
        return compile_scalar(ast0, scope, parent, opts)
      else
        return assert_compile(false, ("could not compile value of type " .. type(ast0)), ast0)
      end
    end
    local function destructure(to, from, ast, scope, parent, opts)
      local opts0 = (opts or {})
      local _392_ = opts0
      local declaration = _392_["declaration"]
      local forceglobal = _392_["forceglobal"]
      local forceset = _392_["forceset"]
      local isvar = _392_["isvar"]
      local symtype = _392_["symtype"]
      local symtype0 = ("_" .. (symtype or "dst"))
      local setter = nil
      if declaration then
        setter = "local %s = %s"
      else
        setter = "%s = %s"
      end
      local deferred_scope_changes = {manglings = {}, symmeta = {}}
      local function getname(symbol, ast0)
        local raw = symbol[1]
        assert_compile(not (opts0.nomulti and utils["multi-sym?"](raw)), ("unexpected multi symbol " .. raw), ast0)
        if declaration then
          return declare_local(symbol, scope, symbol, isvar, deferred_scope_changes)
        else
          local parts = (utils["multi-sym?"](raw) or {raw})
          local _394_ = parts
          local first = _394_[1]
          local meta = scope.symmeta[first]
          assert_compile(not raw:find(":"), "cannot set method sym", symbol)
          if ((#parts == 1) and not forceset) then
            assert_compile(not (forceglobal and meta), string.format("global %s conflicts with local", tostring(symbol)), symbol)
            assert_compile(not (meta and not meta.var), ("expected var " .. raw), symbol)
          end
          assert_compile((meta or not opts0.noundef or (scope.hashfn and ("$" == first)) or global_allowed_3f(first)), ("expected local " .. first), symbol)
          if forceglobal then
            assert_compile(not scope.symmeta[scope.unmanglings[raw]], ("global " .. raw .. " conflicts with local"), symbol)
            scope.manglings[raw] = global_mangling(raw)
            scope.unmanglings[global_mangling(raw)] = raw
            local _397_
            do
              local _396_0 = utils.root.options
              if (nil ~= _396_0) then
                _396_0 = _396_0.allowedGlobals
              end
              _397_ = _396_0
            end
            if _397_ then
              local _400_
              do
                local _399_0 = utils.root.options
                if (nil ~= _399_0) then
                  _399_0 = _399_0.allowedGlobals
                end
                _400_ = _399_0
              end
              table.insert(_400_, raw)
            end
          end
          return symbol_to_expression(symbol, scope)[1]
        end
      end
      local function compile_top_target(lvalues)
        local inits = nil
        do
          local tbl_17_ = {}
          local i_18_ = #tbl_17_
          for _, l in ipairs(lvalues) do
            local val_19_ = nil
            if scope.manglings[l] then
              val_19_ = l
            else
              val_19_ = "nil"
            end
            if (nil ~= val_19_) then
              i_18_ = (i_18_ + 1)
              tbl_17_[i_18_] = val_19_
            end
          end
          inits = tbl_17_
        end
        local init = table.concat(inits, ", ")
        local lvalue = table.concat(lvalues, ", ")
        local plast = parent[#parent]
        local plen = #parent
        local ret = compile1(from, scope, parent, {target = lvalue})
        if declaration then
          for pi = plen, #parent do
            if (parent[pi] == plast) then
              plen = pi
            end
          end
          if ((#parent == (plen + 1)) and parent[#parent].leaf) then
            parent[#parent]["leaf"] = ("local " .. parent[#parent].leaf)
          elseif (init == "nil") then
            table.insert(parent, (plen + 1), {ast = ast, leaf = ("local " .. lvalue)})
          else
            table.insert(parent, (plen + 1), {ast = ast, leaf = ("local " .. lvalue .. " = " .. init)})
          end
        end
        return ret
      end
      local function destructure_sym(left, rightexprs, up1, top_3f)
        local lname = getname(left, up1)
        check_binding_valid(left, scope, left)
        if top_3f then
          return compile_top_target({lname})
        else
          return emit(parent, setter:format(lname, exprs1(rightexprs)), left)
        end
      end
      local function dynamic_set_target(_411_0)
        local _412_ = _411_0
        local _ = _412_[1]
        local target = _412_[2]
        local keys = {(table.unpack or unpack)(_412_, 3)}
        assert_compile(utils["sym?"](target), "dynamic set needs symbol target", ast)
        assert_compile(next(keys), "dynamic set needs at least one key", ast)
        local keys0 = nil
        do
          local tbl_17_ = {}
          local i_18_ = #tbl_17_
          for _0, k in ipairs(keys) do
            local val_19_ = tostring(compile1(k, scope, parent, {nval = 1})[1])
            if (nil ~= val_19_) then
              i_18_ = (i_18_ + 1)
              tbl_17_[i_18_] = val_19_
            end
          end
          keys0 = tbl_17_
        end
        return string.format("%s[%s]", tostring(symbol_to_expression(target, scope, true)), table.concat(keys0, "]["))
      end
      local function destructure_values(left, rightexprs, up1, destructure1, top_3f)
        local left_names, tables = {}, {}
        for i, name in ipairs(left) do
          if utils["sym?"](name) then
            table.insert(left_names, getname(name, up1))
          elseif utils["call-of?"](name, ".") then
            table.insert(left_names, dynamic_set_target(name))
          else
            local symname = gensym(scope, symtype0)
            table.insert(left_names, symname)
            tables[i] = {name, utils.expr(symname, "sym")}
          end
        end
        assert_compile(left[1], "must provide at least one value", left)
        if top_3f then
          compile_top_target(left_names)
        elseif utils["expr?"](rightexprs) then
          emit(parent, setter:format(table.concat(left_names, ","), exprs1(rightexprs)), left)
        else
          local names = table.concat(left_names, ",")
          local target = nil
          if declaration then
            target = ("local " .. names)
          else
            target = names
          end
          emit(parent, compile1(rightexprs, scope, parent, {target = target}), left)
        end
        for _, pair in utils.stablepairs(tables) do
          destructure1(pair[1], {pair[2]}, left)
        end
        return nil
      end
      local unpack_fn = "function (t, k, e)\n                        local mt = getmetatable(t)\n                        if 'table' == type(mt) and mt.__fennelrest then\n                          return mt.__fennelrest(t, k)\n                        elseif e then\n                          local rest = {}\n                          for k, v in pairs(t) do\n                            if not e[k] then rest[k] = v end\n                          end\n                          return rest\n                        else\n                          return {(table.unpack or unpack)(t, k)}\n                        end\n                      end"
      local function destructure_kv_rest(s, v, left, excluded_keys, destructure1)
        local exclude_str = nil
        local _417_
        do
          local tbl_17_ = {}
          local i_18_ = #tbl_17_
          for _, k in ipairs(excluded_keys) do
            local val_19_ = string.format("[%s] = true", serialize_string(k))
            if (nil ~= val_19_) then
              i_18_ = (i_18_ + 1)
              tbl_17_[i_18_] = val_19_
            end
          end
          _417_ = tbl_17_
        end
        exclude_str = table.concat(_417_, ", ")
        local subexpr = utils.expr(string.format(string.gsub(("(" .. unpack_fn .. ")(%s, %s, {%s})"), "\n%s*", " "), s, tostring(v), exclude_str), "expression")
        return destructure1(v, {subexpr}, left)
      end
      local function destructure_rest(s, k, left, destructure1)
        local unpack_str = ("(" .. unpack_fn .. ")(%s, %s)")
        local formatted = string.format(string.gsub(unpack_str, "\n%s*", " "), s, k)
        local subexpr = utils.expr(formatted, "expression")
        local function _419_()
          local next_symbol = left[(k + 2)]
          return ((nil == next_symbol) or utils["sym?"](next_symbol, "&as"))
        end
        assert_compile((utils["sequence?"](left) and _419_()), "expected rest argument before last parameter", left)
        return destructure1(left[(k + 1)], {subexpr}, left)
      end
      local function optimize_table_destructure_3f(left, right)
        local function _420_()
          local all = next(left)
          for _, d in ipairs(left) do
            if not all then break end
            all = ((utils["sym?"](d) and not tostring(d):find("^&")) or (utils["list?"](d) and utils["sym?"](d[1], ".")))
          end
          return all
        end
        return (utils["sequence?"](left) and utils["sequence?"](right) and _420_())
      end
      local function destructure_table(left, rightexprs, top_3f, destructure1, up1)
        if optimize_table_destructure_3f(left, rightexprs) then
          return destructure_values(utils.list(unpack(left)), utils.list(utils.sym("values"), unpack(rightexprs)), up1, destructure1)
        else
          local right = nil
          do
            local _421_0 = nil
            if top_3f then
              _421_0 = exprs1(compile1(from, scope, parent))
            else
              _421_0 = exprs1(rightexprs)
            end
            if (_421_0 == "") then
              right = "nil"
            elseif (nil ~= _421_0) then
              local right0 = _421_0
              right = right0
            else
            right = nil
            end
          end
          local s = nil
          if utils["sym?"](rightexprs) then
            s = right
          else
            s = gensym(scope, symtype0)
          end
          local excluded_keys = {}
          if not utils["sym?"](rightexprs) then
            emit(parent, string.format("local %s = %s", s, right), left)
          end
          for k, v in utils.stablepairs(left) do
            if not (("number" == type(k)) and tostring(left[(k - 1)]):find("^&")) then
              if (utils["sym?"](k) and (tostring(k) == "&")) then
                destructure_kv_rest(s, v, left, excluded_keys, destructure1)
              elseif (utils["sym?"](v) and (tostring(v) == "&")) then
                destructure_rest(s, k, left, destructure1)
              elseif (utils["sym?"](k) and (tostring(k) == "&as")) then
                destructure_sym(v, {utils.expr(tostring(s))}, left)
              elseif (utils["sequence?"](left) and (tostring(v) == "&as")) then
                local _, next_sym, trailing = select(k, unpack(left))
                assert_compile((nil == trailing), "expected &as argument before last parameter", left)
                destructure_sym(next_sym, {utils.expr(tostring(s))}, left)
              else
                local key = nil
                if (type(k) == "string") then
                  key = serialize_string(k)
                else
                  key = k
                end
                local subexpr = utils.expr(("%s[%s]"):format(s, key), "expression")
                if (type(k) == "string") then
                  table.insert(excluded_keys, k)
                end
                destructure1(v, subexpr, left)
              end
            end
          end
          return nil
        end
      end
      local function destructure1(left, rightexprs, up1, top_3f)
        if (utils["sym?"](left) and (left[1] ~= "nil")) then
          destructure_sym(left, rightexprs, up1, top_3f)
        elseif utils["table?"](left) then
          destructure_table(left, rightexprs, top_3f, destructure1, up1)
        elseif utils["call-of?"](left, ".") then
          destructure_values({left}, rightexprs, up1, destructure1)
        elseif utils["list?"](left) then
          assert_compile(top_3f, "can't nest multi-value destructuring", left)
          destructure_values(left, rightexprs, up1, destructure1, true)
        else
          assert_compile(false, string.format("unable to bind %s %s", type(left), tostring(left)), (((type(up1[2]) == "table") and up1[2]) or up1))
        end
        return (top_3f and {returned = true})
      end
      local ret = destructure1(to, from, ast, true)
      utils.hook("destructure", from, to, scope, opts0)
      apply_deferred_scope_changes(scope, deferred_scope_changes, ast)
      return ret
    end
    local function require_include(ast, scope, parent, opts)
      opts.fallback = function(e, no_warn)
        if not no_warn then
          utils.warn(("include module not found, falling back to require: %s"):format(tostring(e)), ast)
        end
        return utils.expr(string.format("require(%s)", tostring(e)), "statement")
      end
      return scopes.global.specials.include(ast, scope, parent, opts)
    end
    local function compile_asts(asts, options)
      local opts = utils.copy(options)
      local scope = (opts.scope or make_scope(scopes.global))
      local chunk = {}
      if opts.requireAsInclude then
        scope.specials.require = require_include
      end
      if opts.assertAsRepl then
        scope.macros.assert = scope.macros["assert-repl"]
      end
      local _435_ = utils.root
      _435_["set-reset"](_435_)
      utils.root.chunk, utils.root.scope, utils.root.options = chunk, scope, opts
      for i = 1, #asts do
        local exprs = compile1(asts[i], scope, chunk, {nval = (((i < #asts) and 0) or nil), tail = (i == #asts)})
        keep_side_effects(exprs, chunk, nil, asts[i])
        if (i == #asts) then
          utils.hook("chunk", asts[i], scope)
        end
      end
      utils.root.reset()
      return flatten(chunk, opts)
    end
    local function compile_stream(stream, _3fopts)
      local opts = (_3fopts or {})
      local asts = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for _, ast in parser.parser(stream, opts.filename, opts) do
          local val_19_ = ast
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        asts = tbl_17_
      end
      return compile_asts(asts, opts)
    end
    local function compile_string(str, _3fopts)
      return compile_stream(parser["string-stream"](str, _3fopts), _3fopts)
    end
    local function compile(from, _3fopts)
      local _438_0 = type(from)
      if (_438_0 == "userdata") then
        local function _439_()
          local _440_0 = from:read(1)
          if (nil ~= _440_0) then
            return _440_0:byte()
          else
            return _440_0
          end
        end
        return compile_stream(_439_, _3fopts)
      elseif (_438_0 == "function") then
        return compile_stream(from, _3fopts)
      else
        local _ = _438_0
        return compile_asts({from}, _3fopts)
      end
    end
    local function traceback_frame(info)
      if ((info.what == "C") and info.name) then
        return string.format("\9[C]: in function '%s'", info.name)
      elseif (info.what == "C") then
        return "\9[C]: in ?"
      else
        local remap = sourcemap[info.source]
        if (remap and remap[info.currentline]) then
          if ((remap[info.currentline][1] or "unknown") ~= "unknown") then
            info.short_src = sourcemap[("@" .. remap[info.currentline][1])].short_src
          else
            info.short_src = remap.short_src
          end
          info.currentline = (remap[info.currentline][2] or -1)
        end
        if (info.what == "Lua") then
          local function _445_()
            if info.name then
              return ("'" .. info.name .. "'")
            else
              return "?"
            end
          end
          return string.format("\9%s:%d: in function %s", info.short_src, info.currentline, _445_())
        elseif (info.short_src == "(tail call)") then
          return "  (tail call)"
        else
          return string.format("\9%s:%d: in main chunk", info.short_src, info.currentline)
        end
      end
    end
    local lua_getinfo = debug.getinfo
    local function traceback(_3fmsg, _3fstart)
      local _448_0 = type(_3fmsg)
      if ((_448_0 == "nil") or (_448_0 == "string")) then
        local msg = (_3fmsg or "")
        if ((msg:find("^%g+:%d+:%d+ Compile error:.*") or msg:find("^%g+:%d+:%d+ Parse error:.*")) and not utils["debug-on?"]("trace")) then
          return msg
        else
          local lines = {}
          if (msg:find("^%g+:%d+:%d+ Compile error:") or msg:find("^%g+:%d+:%d+ Parse error:")) then
            table.insert(lines, msg)
          else
            local newmsg = msg:gsub("^[^:]*:%d+:%s+", "runtime error: ")
            table.insert(lines, newmsg)
          end
          table.insert(lines, "stack traceback:")
          local done_3f, level = false, (_3fstart or 2)
          while not done_3f do
            do
              local _450_0 = lua_getinfo(level, "Sln")
              if (_450_0 == nil) then
                done_3f = true
              elseif (nil ~= _450_0) then
                local info = _450_0
                table.insert(lines, traceback_frame(info))
              end
            end
            level = (level + 1)
          end
          return table.concat(lines, "\n")
        end
      else
        local _ = _448_0
        return _3fmsg
      end
    end
    local function getinfo(thread_or_level, ...)
      local thread_or_level0 = nil
      if ("number" == type(thread_or_level)) then
        thread_or_level0 = (1 + thread_or_level)
      else
        thread_or_level0 = thread_or_level
      end
      local info = lua_getinfo(thread_or_level0, ...)
      local mapped = (info and sourcemap[info.source])
      if mapped then
        for _, key in ipairs({"currentline", "linedefined", "lastlinedefined"}) do
          local mapped_value = nil
          do
            local _455_0 = mapped
            if (nil ~= _455_0) then
              _455_0 = _455_0[info[key]]
            end
            if (nil ~= _455_0) then
              _455_0 = _455_0[2]
            end
            mapped_value = _455_0
          end
          if (info[key] and mapped_value) then
            info[key] = mapped_value
          end
        end
        if info.activelines then
          local tbl_14_ = {}
          for line in pairs(info.activelines) do
            local k_15_, v_16_ = mapped[line][2], true
            if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
              tbl_14_[k_15_] = v_16_
            end
          end
          info.activelines = tbl_14_
        end
        if (info.what == "Lua") then
          info.what = "Fennel"
        end
      end
      return info
    end
    local function mixed_concat(t, joiner)
      local seen = {}
      local ret, s = "", ""
      for k, v in ipairs(t) do
        table.insert(seen, k)
        ret = (ret .. s .. v)
        s = joiner
      end
      for k, v in utils.stablepairs(t) do
        if not seen[k] then
          ret = (ret .. s .. "[" .. k .. "]" .. "=" .. v)
          s = joiner
        end
      end
      return ret
    end
    local function do_quote(form, scope, parent, runtime_3f)
      local function quote_all(form0, discard_non_numbers)
        local tbl_14_ = {}
        for k, v in utils.stablepairs(form0) do
          local k_15_, v_16_ = nil, nil
          if (type(k) == "number") then
            k_15_, v_16_ = k, do_quote(v, scope, parent, runtime_3f)
          elseif not discard_non_numbers then
            k_15_, v_16_ = do_quote(k, scope, parent, runtime_3f), do_quote(v, scope, parent, runtime_3f)
          else
          k_15_, v_16_ = nil
          end
          if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
            tbl_14_[k_15_] = v_16_
          end
        end
        return tbl_14_
      end
      if utils["varg?"](form) then
        assert_compile(not runtime_3f, "quoted ... may only be used at compile time", form)
        return "_VARARG"
      elseif utils["sym?"](form) then
        local filename = nil
        if form.filename then
          filename = string.format("%q", form.filename)
        else
          filename = "nil"
        end
        local symstr = tostring(form)
        assert_compile(not runtime_3f, "symbols may only be used at compile time", form)
        if (symstr:find("#$") or symstr:find("#[:.]")) then
          return string.format("_G.sym('%s', {filename=%s, line=%s})", autogensym(symstr, scope), filename, (form.line or "nil"))
        else
          return string.format("_G.sym('%s', {quoted=true, filename=%s, line=%s})", symstr, filename, (form.line or "nil"))
        end
      elseif utils["call-of?"](form, "unquote") then
        local res = unpack(compile1(form[2], scope, parent))
        return res[1]
      elseif utils["list?"](form) then
        local mapped = quote_all(form, true)
        local filename = nil
        if form.filename then
          filename = string.format("%q", form.filename)
        else
          filename = "nil"
        end
        assert_compile(not runtime_3f, "lists may only be used at compile time", form)
        return string.format(("setmetatable({filename=%s, line=%s, bytestart=%s, %s}" .. ", getmetatable(_G.list()))"), filename, (form.line or "nil"), (form.bytestart or "nil"), mixed_concat(mapped, ", "))
      elseif utils["sequence?"](form) then
        local mapped = quote_all(form)
        local source = getmetatable(form)
        local filename = nil
        if source.filename then
          filename = string.format("%q", source.filename)
        else
          filename = "nil"
        end
        local _470_
        if source then
          _470_ = source.line
        else
          _470_ = "nil"
        end
        return string.format("setmetatable({%s}, {filename=%s, line=%s, sequence=%s})", mixed_concat(mapped, ", "), filename, _470_, "(getmetatable(_G.sequence()))['sequence']")
      elseif (type(form) == "table") then
        local mapped = quote_all(form)
        local source = getmetatable(form)
        local filename = nil
        if source.filename then
          filename = string.format("%q", source.filename)
        else
          filename = "nil"
        end
        local function _473_()
          if source then
            return source.line
          else
            return "nil"
          end
        end
        return string.format("setmetatable({%s}, {filename=%s, line=%s})", mixed_concat(mapped, ", "), filename, _473_())
      elseif (type(form) == "string") then
        return serialize_string(form)
      else
        return tostring(form)
      end
    end
    return {["apply-deferred-scope-changes"] = apply_deferred_scope_changes, ["check-binding-valid"] = check_binding_valid, ["compile-stream"] = compile_stream, ["compile-string"] = compile_string, ["declare-local"] = declare_local, ["do-quote"] = do_quote, ["global-allowed?"] = global_allowed_3f, ["global-mangling"] = global_mangling, ["global-unmangling"] = global_unmangling, ["keep-side-effects"] = keep_side_effects, ["make-scope"] = make_scope, ["require-include"] = require_include, ["symbol-to-expression"] = symbol_to_expression, assert = assert_compile, autogensym = autogensym, compile = compile, compile1 = compile1, destructure = destructure, emit = emit, gensym = gensym, getinfo = getinfo, macroexpand = macroexpand_2a, metadata = make_metadata(), scopes = scopes, sourcemap = sourcemap, traceback = traceback}
  end
  package.preload["fennel.friend"] = package.preload["fennel.friend"] or function(...)
    local utils = require("fennel.utils")
    local utf8_ok_3f, utf8 = pcall(require, "utf8")
    local suggestions = {["$ and $... in hashfn are mutually exclusive"] = {"modifying the hashfn so it only contains $... or $, $1, $2, $3, etc"}, ["can't introduce (.*) here"] = {"declaring the local at the top-level"}, ["can't start multisym segment with a digit"] = {"removing the digit", "adding a non-digit before the digit"}, ["cannot call literal value"] = {"checking for typos", "checking for a missing function name", "making sure to use prefix operators, not infix"}, ["could not compile value of type "] = {"debugging the macro you're calling to return a list or table"}, ["could not read number (.*)"] = {"removing the non-digit character", "beginning the identifier with a non-digit if it is not meant to be a number"}, ["expected a function.* to call"] = {"removing the empty parentheses", "using square brackets if you want an empty table"}, ["expected at least one pattern/body pair"] = {"adding a pattern and a body to execute when the pattern matches"}, ["expected binding and iterator"] = {"making sure you haven't omitted a local name or iterator"}, ["expected binding sequence"] = {"placing a table here in square brackets containing identifiers to bind"}, ["expected body expression"] = {"putting some code in the body of this form after the bindings"}, ["expected each macro to be function"] = {"ensuring that the value for each key in your macros table contains a function", "avoid defining nested macro tables"}, ["expected even number of name/value bindings"] = {"finding where the identifier or value is missing"}, ["expected even number of pattern/body pairs"] = {"checking that every pattern has a body to go with it", "adding _ before the final body"}, ["expected even number of values in table literal"] = {"removing a key", "adding a value"}, ["expected local"] = {"looking for a typo", "looking for a local which is used out of its scope"}, ["expected macros to be table"] = {"ensuring your macro definitions return a table"}, ["expected parameters"] = {"adding function parameters as a list of identifiers in brackets"}, ["expected range to include start and stop"] = {"adding missing arguments"}, ["expected rest argument before last parameter"] = {"moving & to right before the final identifier when destructuring"}, ["expected symbol for function parameter: (.*)"] = {"changing %s to an identifier instead of a literal value"}, ["expected var (.*)"] = {"declaring %s using var instead of let/local", "introducing a new local instead of changing the value of %s"}, ["expected vararg as last parameter"] = {"moving the \"...\" to the end of the parameter list"}, ["expected whitespace before opening delimiter"] = {"adding whitespace"}, ["global (.*) conflicts with local"] = {"renaming local %s"}, ["invalid character: (.)"] = {"deleting or replacing %s", "avoiding reserved characters like \", \\, ', ~, ;, @, `, and comma"}, ["local (.*) was overshadowed by a special form or macro"] = {"renaming local %s"}, ["macro not found in macro module"] = {"checking the keys of the imported macro module's returned table"}, ["macro tried to bind (.*) without gensym"] = {"changing to %s# when introducing identifiers inside macros"}, ["malformed multisym"] = {"ensuring each period or colon is not followed by another period or colon"}, ["may only be used at compile time"] = {"moving this to inside a macro if you need to manipulate symbols/lists", "using square brackets instead of parens to construct a table"}, ["method must be last component"] = {"using a period instead of a colon for field access", "removing segments after the colon", "making the method call, then looking up the field on the result"}, ["mismatched closing delimiter (.), expected (.)"] = {"replacing %s with %s", "deleting %s", "adding matching opening delimiter earlier"}, ["missing subject"] = {"adding an item to operate on"}, ["multisym method calls may only be in call position"] = {"using a period instead of a colon to reference a table's fields", "putting parens around this"}, ["tried to reference a macro without calling it"] = {"renaming the macro so as not to conflict with locals"}, ["tried to reference a special form without calling it"] = {"making sure to use prefix operators, not infix", "wrapping the special in a function if you need it to be first class"}, ["tried to use unquote outside quote"] = {"moving the form to inside a quoted form", "removing the comma"}, ["tried to use vararg with operator"] = {"accumulating over the operands"}, ["unable to bind (.*)"] = {"replacing the %s with an identifier"}, ["unexpected arguments"] = {"removing an argument", "checking for typos"}, ["unexpected closing delimiter (.)"] = {"deleting %s", "adding matching opening delimiter earlier"}, ["unexpected iterator clause"] = {"removing an argument", "checking for typos"}, ["unexpected multi symbol (.*)"] = {"removing periods or colons from %s"}, ["unexpected vararg"] = {"putting \"...\" at the end of the fn parameters if the vararg was intended"}, ["unknown identifier: (.*)"] = {"looking to see if there's a typo", "using the _G table instead, eg. _G.%s if you really want a global", "moving this code to somewhere that %s is in scope", "binding %s as a local in the scope of this code"}, ["unused local (.*)"] = {"renaming the local to _%s if it is meant to be unused", "fixing a typo so %s is used", "disabling the linter which checks for unused locals"}, ["use of global (.*) is aliased by a local"] = {"renaming local %s", "refer to the global using _G.%s instead of directly"}}
    local unpack = (table.unpack or _G.unpack)
    local function suggest(msg)
      local s = nil
      for pat, sug in pairs(suggestions) do
        if s then break end
        local matches = {msg:match(pat)}
        if next(matches) then
          local tbl_17_ = {}
          local i_18_ = #tbl_17_
          for _, s0 in ipairs(sug) do
            local val_19_ = s0:format(unpack(matches))
            if (nil ~= val_19_) then
              i_18_ = (i_18_ + 1)
              tbl_17_[i_18_] = val_19_
            end
          end
          s = tbl_17_
        else
        s = nil
        end
      end
      return s
    end
    local function read_line(filename, line, _3fsource)
      if _3fsource then
        local matcher = string.gmatch((_3fsource .. "\n"), "(.-)(\13?\n)")
        for _ = 2, line do
          matcher()
        end
        return matcher()
      else
        local f = assert(_G.io.open(filename))
        local function close_handlers_10_(ok_11_, ...)
          f:close()
          if ok_11_ then
            return ...
          else
            return error(..., 0)
          end
        end
        local function _190_()
          for _ = 2, line do
            f:read()
          end
          return f:read()
        end
        return close_handlers_10_(_G.xpcall(_190_, (package.loaded.fennel or debug).traceback))
      end
    end
    local function sub(str, start, _end)
      if ((_end < start) or (#str < start)) then
        return ""
      elseif utf8_ok_3f then
        return string.sub(str, utf8.offset(str, start), ((utf8.offset(str, (_end + 1)) or (utf8.len(str) + 1)) - 1))
      else
        return string.sub(str, start, math.min(_end, str:len()))
      end
    end
    local function highlight_line(codeline, col, _3fendcol, opts)
      if ((opts and (false == opts["error-pinpoint"])) or (os and os.getenv and os.getenv("NO_COLOR"))) then
        return codeline
      else
        local _193_ = (opts or {})
        local error_pinpoint = _193_["error-pinpoint"]
        local endcol = (_3fendcol or col)
        local eol = nil
        if utf8_ok_3f then
          eol = utf8.len(codeline)
        else
          eol = string.len(codeline)
        end
        local _195_ = (error_pinpoint or {"\27[7m", "\27[0m"})
        local open = _195_[1]
        local close = _195_[2]
        return (sub(codeline, 1, col) .. open .. sub(codeline, (col + 1), (endcol + 1)) .. close .. sub(codeline, (endcol + 2), eol))
      end
    end
    local function friendly_msg(msg, _197_0, source, opts)
      local _198_ = _197_0
      local col = _198_["col"]
      local endcol = _198_["endcol"]
      local endline = _198_["endline"]
      local filename = _198_["filename"]
      local line = _198_["line"]
      local ok, codeline = pcall(read_line, filename, line, source)
      local endcol0 = nil
      if (ok and codeline and (line ~= endline)) then
        endcol0 = #codeline
      else
        endcol0 = endcol
      end
      local out = {msg, ""}
      if (ok and codeline) then
        if col then
          table.insert(out, highlight_line(codeline, col, endcol0, opts))
        else
          table.insert(out, codeline)
        end
      end
      for _, suggestion in ipairs((suggest(msg) or {})) do
        table.insert(out, ("* Try %s."):format(suggestion))
      end
      return table.concat(out, "\n")
    end
    local function assert_compile(condition, msg, ast, source, opts)
      if not condition then
        local _202_ = utils["ast-source"](ast)
        local col = _202_["col"]
        local filename = _202_["filename"]
        local line = _202_["line"]
        error(friendly_msg(("%s:%s:%s: Compile error: %s"):format((filename or "unknown"), (line or "?"), (col or "?"), msg), utils["ast-source"](ast), source, opts), 0)
      end
      return condition
    end
    local function parse_error(msg, filename, line, col, source, opts)
      return error(friendly_msg(("%s:%s:%s: Parse error: %s"):format(filename, line, col, msg), {col = col, filename = filename, line = line}, source, opts), 0)
    end
    return {["assert-compile"] = assert_compile, ["parse-error"] = parse_error}
  end
  package.preload["fennel.parser"] = package.preload["fennel.parser"] or function(...)
    local utils = require("fennel.utils")
    local friend = require("fennel.friend")
    local unpack = (table.unpack or _G.unpack)
    local function granulate(getchunk)
      local c, index, done_3f = "", 1, false
      local function _204_(parser_state)
        if not done_3f then
          if (index <= #c) then
            local b = c:byte(index)
            index = (index + 1)
            return b
          else
            local _205_0 = getchunk(parser_state)
            local function _206_()
              local char = _205_0
              return (char ~= "")
            end
            if ((nil ~= _205_0) and _206_()) then
              local char = _205_0
              c = char
              index = 2
              return c:byte()
            else
              local _ = _205_0
              done_3f = true
              return nil
            end
          end
        end
      end
      local function _210_()
        c = ""
        return nil
      end
      return _204_, _210_
    end
    local function string_stream(str, _3foptions)
      local str0 = str:gsub("^#!", ";;")
      if _3foptions then
        _3foptions.source = str0
      end
      local index = 1
      local function _212_()
        local r = str0:byte(index)
        index = (index + 1)
        return r
      end
      return _212_
    end
    local delims = {[123] = 125, [125] = true, [40] = 41, [41] = true, [91] = 93, [93] = true}
    local function sym_char_3f(b)
      local b0 = nil
      if ("number" == type(b)) then
        b0 = b
      else
        b0 = string.byte(b)
      end
      return ((32 < b0) and not delims[b0] and (b0 ~= 127) and (b0 ~= 34) and (b0 ~= 39) and (b0 ~= 126) and (b0 ~= 59) and (b0 ~= 44) and (b0 ~= 64) and (b0 ~= 96))
    end
    local prefixes = {[35] = "hashfn", [39] = "quote", [44] = "unquote", [96] = "quote"}
    local nan, negative_nan = nil, nil
    if (45 == string.byte(tostring((0 / 0)))) then
      nan, negative_nan = ( - (0 / 0)), (0 / 0)
    else
      nan, negative_nan = (0 / 0), ( - (0 / 0))
    end
    local function char_starter_3f(b)
      return (((1 < b) and (b < 127)) or ((192 < b) and (b < 247)))
    end
    local function parser_fn(getbyte, filename, _215_0)
      local _216_ = _215_0
      local options = _216_
      local comments = _216_["comments"]
      local source = _216_["source"]
      local unfriendly = _216_["unfriendly"]
      local stack = {}
      local line, byteindex, col, prev_col, lastb = 1, 0, 0, 0, nil
      local function ungetb(ub)
        if char_starter_3f(ub) then
          col = (col - 1)
        end
        if (ub == 10) then
          line, col = (line - 1), prev_col
        end
        byteindex = (byteindex - 1)
        lastb = ub
        return nil
      end
      local function getb()
        local r = nil
        if lastb then
          r, lastb = lastb, nil
        else
          r = getbyte({["stack-size"] = #stack})
        end
        if r then
          byteindex = (byteindex + 1)
        end
        if (r and char_starter_3f(r)) then
          col = (col + 1)
        end
        if (r == 10) then
          line, col, prev_col = (line + 1), 0, col
        end
        return r
      end
      local function whitespace_3f(b)
        local function _224_()
          local _223_0 = options.whitespace
          if (nil ~= _223_0) then
            _223_0 = _223_0[b]
          end
          return _223_0
        end
        return ((b == 32) or ((9 <= b) and (b <= 13)) or _224_())
      end
      local function parse_error(msg, _3fcol_adjust)
        local col0 = (col + (_3fcol_adjust or -1))
        if (nil == utils["hook-opts"]("parse-error", options, msg, filename, (line or "?"), col0, source, utils.root.reset)) then
          utils.root.reset()
          if unfriendly then
            return error(string.format("%s:%s:%s: Parse error: %s", filename, (line or "?"), col0, msg), 0)
          else
            return friend["parse-error"](msg, filename, (line or "?"), col0, source, options)
          end
        end
      end
      local function parse_stream()
        local whitespace_since_dispatch, done_3f, retval = true
        local function set_source_fields(source0)
          source0.byteend, source0.endcol, source0.endline = byteindex, (col - 1), line
          return nil
        end
        local function dispatch(v, _3fsource, _3fraw)
          whitespace_since_dispatch = false
          local v0 = nil
          do
            local _228_0 = utils["hook-opts"]("parse-form", options, v, _3fsource, _3fraw, stack)
            if (nil ~= _228_0) then
              local hookv = _228_0
              v0 = hookv
            else
              local _ = _228_0
              v0 = v
            end
          end
          local _230_0 = stack[#stack]
          if (_230_0 == nil) then
            retval, done_3f = v0, true
            return nil
          elseif ((_G.type(_230_0) == "table") and (nil ~= _230_0.prefix)) then
            local prefix = _230_0.prefix
            local source0 = nil
            do
              local _231_0 = table.remove(stack)
              set_source_fields(_231_0)
              source0 = _231_0
            end
            local list = utils.list(utils.sym(prefix, source0), v0)
            return dispatch(utils.copy(source0, list))
          elseif (nil ~= _230_0) then
            local top = _230_0
            return table.insert(top, v0)
          end
        end
        local function badend()
          local closers = nil
          do
            local tbl_17_ = {}
            local i_18_ = #tbl_17_
            for _, _233_0 in ipairs(stack) do
              local _234_ = _233_0
              local closer = _234_["closer"]
              local val_19_ = closer
              if (nil ~= val_19_) then
                i_18_ = (i_18_ + 1)
                tbl_17_[i_18_] = val_19_
              end
            end
            closers = tbl_17_
          end
          local _236_
          if (#stack == 1) then
            _236_ = ""
          else
            _236_ = "s"
          end
          return parse_error(string.format("expected closing delimiter%s %s", _236_, string.char(unpack(closers))), 0)
        end
        local function skip_whitespace(b, close_table)
          if (b and whitespace_3f(b)) then
            whitespace_since_dispatch = true
            return skip_whitespace(getb(), close_table)
          elseif (not b and next(stack)) then
            badend()
            for i = #stack, 2, -1 do
              close_table(stack[i].closer)
            end
            return stack[1].closer
          else
            return b
          end
        end
        local function parse_comment(b, contents)
          if (b and (10 ~= b)) then
            local function _239_()
              table.insert(contents, string.char(b))
              return contents
            end
            return parse_comment(getb(), _239_())
          elseif comments then
            ungetb(10)
            return dispatch(utils.comment(table.concat(contents), {filename = filename, line = line}))
          end
        end
        local function open_table(b)
          if not whitespace_since_dispatch then
            parse_error(("expected whitespace before opening delimiter " .. string.char(b)))
          end
          return table.insert(stack, {bytestart = byteindex, closer = delims[b], col = (col - 1), filename = filename, line = line})
        end
        local function close_list(list)
          return dispatch(setmetatable(list, getmetatable(utils.list())))
        end
        local function close_sequence(tbl)
          local mt = getmetatable(utils.sequence())
          for k, v in pairs(tbl) do
            if ("number" ~= type(k)) then
              mt[k] = v
              tbl[k] = nil
            end
          end
          return dispatch(setmetatable(tbl, mt))
        end
        local function add_comment_at(comments0, index, node)
          local _243_0 = comments0[index]
          if (nil ~= _243_0) then
            local existing = _243_0
            return table.insert(existing, node)
          else
            local _ = _243_0
            comments0[index] = {node}
            return nil
          end
        end
        local function next_noncomment(tbl, i)
          if utils["comment?"](tbl[i]) then
            return next_noncomment(tbl, (i + 1))
          elseif utils["sym?"](tbl[i], ":") then
            return tostring(tbl[(i + 1)])
          else
            return tbl[i]
          end
        end
        local function extract_comments(tbl)
          local comments0 = {keys = {}, last = {}, values = {}}
          while utils["comment?"](tbl[#tbl]) do
            table.insert(comments0.last, 1, table.remove(tbl))
          end
          local last_key_3f = false
          for i, node in ipairs(tbl) do
            if not utils["comment?"](node) then
              last_key_3f = not last_key_3f
            elseif last_key_3f then
              add_comment_at(comments0.values, next_noncomment(tbl, i), node)
            else
              add_comment_at(comments0.keys, next_noncomment(tbl, i), node)
            end
          end
          for i = #tbl, 1, -1 do
            if utils["comment?"](tbl[i]) then
              table.remove(tbl, i)
            end
          end
          return comments0
        end
        local function close_curly_table(tbl)
          local comments0 = extract_comments(tbl)
          local keys = {}
          local val = {}
          if ((#tbl % 2) ~= 0) then
            byteindex = (byteindex - 1)
            parse_error("expected even number of values in table literal")
          end
          setmetatable(val, tbl)
          for i = 1, #tbl, 2 do
            if ((tostring(tbl[i]) == ":") and utils["sym?"](tbl[(i + 1)]) and utils["sym?"](tbl[i])) then
              tbl[i] = tostring(tbl[(i + 1)])
            end
            val[tbl[i]] = tbl[(i + 1)]
            table.insert(keys, tbl[i])
          end
          tbl.comments = comments0
          tbl.keys = keys
          return dispatch(val)
        end
        local function close_table(b)
          local top = table.remove(stack)
          if (top == nil) then
            parse_error(("unexpected closing delimiter " .. string.char(b)))
          end
          if (top.closer and (top.closer ~= b)) then
            parse_error(("mismatched closing delimiter " .. string.char(b) .. ", expected " .. string.char(top.closer)))
          end
          set_source_fields(top)
          if (b == 41) then
            return close_list(top)
          elseif (b == 93) then
            return close_sequence(top)
          else
            return close_curly_table(top)
          end
        end
        local function parse_string_loop(chars, b, state)
          if b then
            table.insert(chars, string.char(b))
          end
          local state0 = nil
          do
            local _254_0 = {state, b}
            if ((_G.type(_254_0) == "table") and (_254_0[1] == "base") and (_254_0[2] == 92)) then
              state0 = "backslash"
            elseif ((_G.type(_254_0) == "table") and (_254_0[1] == "base") and (_254_0[2] == 34)) then
              state0 = "done"
            elseif ((_G.type(_254_0) == "table") and (_254_0[1] == "backslash") and (_254_0[2] == 10)) then
              table.remove(chars, (#chars - 1))
              state0 = "base"
            else
              local _ = _254_0
              state0 = "base"
            end
          end
          if (b and (state0 ~= "done")) then
            return parse_string_loop(chars, getb(), state0)
          else
            return b
          end
        end
        local function escape_char(c)
          return ({[10] = "\\n", [11] = "\\v", [12] = "\\f", [13] = "\\r", [7] = "\\a", [8] = "\\b", [9] = "\\t"})[c:byte()]
        end
        local function parse_string(source0)
          if not whitespace_since_dispatch then
            utils.warn("expected whitespace before string", nil, filename, line)
          end
          table.insert(stack, {closer = 34})
          local chars = {"\""}
          if not parse_string_loop(chars, getb(), "base") then
            badend()
          end
          table.remove(stack)
          local raw = table.concat(chars)
          local formatted = raw:gsub("[\7-\13]", escape_char)
          local _259_0 = (rawget(_G, "loadstring") or load)(("return " .. formatted))
          if (nil ~= _259_0) then
            local load_fn = _259_0
            return dispatch(load_fn(), source0, raw)
          elseif (_259_0 == nil) then
            return parse_error(("Invalid string: " .. raw))
          end
        end
        local function parse_prefix(b)
          table.insert(stack, {bytestart = byteindex, col = (col - 1), filename = filename, line = line, prefix = prefixes[b]})
          local nextb = getb()
          local trailing_whitespace_3f = (whitespace_3f(nextb) or (true == delims[nextb]))
          if (trailing_whitespace_3f and (b ~= 35)) then
            parse_error("invalid whitespace after quoting prefix")
          end
          ungetb(nextb)
          if (trailing_whitespace_3f and (b == 35)) then
            local source0 = table.remove(stack)
            set_source_fields(source0)
            return dispatch(utils.sym("#", source0))
          end
        end
        local function parse_sym_loop(chars, b)
          if (b and sym_char_3f(b)) then
            table.insert(chars, string.char(b))
            return parse_sym_loop(chars, getb())
          else
            if b then
              ungetb(b)
            end
            return chars
          end
        end
        local function parse_number(rawstr, source0)
          local trimmed = (not rawstr:find("^_") and rawstr:gsub("_", ""))
          if ((trimmed == "nan") or (trimmed == "-nan")) then
            return false
          elseif rawstr:match("^%d") then
            dispatch((tonumber(trimmed) or parse_error(("could not read number \"" .. rawstr .. "\""))), source0, rawstr)
            return true
          else
            local _265_0 = tonumber(trimmed)
            if (nil ~= _265_0) then
              local x = _265_0
              dispatch(x, source0, rawstr)
              return true
            else
              local _ = _265_0
              return false
            end
          end
        end
        local function check_malformed_sym(rawstr)
          local function col_adjust(pat)
            return (rawstr:find(pat) - utils.len(rawstr) - 1)
          end
          if (rawstr:match("^~") and (rawstr ~= "~=")) then
            parse_error("invalid character: ~")
          elseif (rawstr:match("[%.:][%.:]") and (rawstr ~= "..") and (rawstr ~= "$...")) then
            parse_error(("malformed multisym: " .. rawstr), col_adjust("[%.:][%.:]"))
          elseif ((rawstr ~= ":") and rawstr:match(":$")) then
            parse_error(("malformed multisym: " .. rawstr), col_adjust(":$"))
          elseif rawstr:match(":.+[%.:]") then
            parse_error(("method must be last component of multisym: " .. rawstr), col_adjust(":.+[%.:]"))
          end
          if not whitespace_since_dispatch then
            utils.warn("expected whitespace before token", nil, filename, line)
          end
          return rawstr
        end
        local function parse_sym(b)
          local source0 = {bytestart = byteindex, col = (col - 1), filename = filename, line = line}
          local rawstr = table.concat(parse_sym_loop({string.char(b)}, getb()))
          set_source_fields(source0)
          if (rawstr == "true") then
            return dispatch(true, source0)
          elseif (rawstr == "false") then
            return dispatch(false, source0)
          elseif (rawstr == "...") then
            return dispatch(utils.varg(source0))
          elseif (rawstr == ".inf") then
            return dispatch((1 / 0), source0, rawstr)
          elseif (rawstr == "-.inf") then
            return dispatch((-1 / 0), source0, rawstr)
          elseif (rawstr == ".nan") then
            return dispatch(nan, source0, rawstr)
          elseif (rawstr == "-.nan") then
            return dispatch(negative_nan, source0, rawstr)
          elseif rawstr:match("^:.+$") then
            return dispatch(rawstr:sub(2), source0, rawstr)
          elseif not parse_number(rawstr, source0) then
            return dispatch(utils.sym(check_malformed_sym(rawstr), source0))
          end
        end
        local function parse_loop(b)
          if not b then
          elseif (b == 59) then
            parse_comment(getb(), {";"})
          elseif (type(delims[b]) == "number") then
            open_table(b)
          elseif delims[b] then
            close_table(b)
          elseif (b == 34) then
            parse_string({bytestart = byteindex, col = col, filename = filename, line = line})
          elseif prefixes[b] then
            parse_prefix(b)
          elseif (sym_char_3f(b) or (b == string.byte("~"))) then
            parse_sym(b)
          elseif not utils["hook-opts"]("illegal-char", options, b, getb, ungetb, dispatch) then
            parse_error(("invalid character: " .. string.char(b)))
          end
          if not b then
            return nil
          elseif done_3f then
            return true, retval
          else
            return parse_loop(skip_whitespace(getb(), close_table))
          end
        end
        return parse_loop(skip_whitespace(getb(), close_table))
      end
      local function _273_()
        stack, line, byteindex, col, lastb = {}, 1, 0, 0, ((lastb ~= 10) and lastb)
        return nil
      end
      return parse_stream, _273_
    end
    local function parser(stream_or_string, _3ffilename, _3foptions)
      local filename = (_3ffilename or "unknown")
      local options = (_3foptions or utils.root.options or {})
      assert(("string" == type(filename)), "expected filename as second argument to parser")
      if ("string" == type(stream_or_string)) then
        return parser_fn(string_stream(stream_or_string, options), filename, options)
      else
        return parser_fn(stream_or_string, filename, options)
      end
    end
    return {["string-stream"] = string_stream, ["sym-char?"] = sym_char_3f, granulate = granulate, parser = parser}
  end
  local utils = nil
  package.preload["fennel.view"] = package.preload["fennel.view"] or function(...)
    local type_order = {["function"] = 5, boolean = 2, number = 1, string = 3, table = 4, thread = 7, userdata = 6}
    local default_opts = {["detect-cycles?"] = true, ["empty-as-sequence?"] = false, ["escape-newlines?"] = false, ["line-length"] = 80, ["max-sparse-gap"] = 10, ["metamethod?"] = true, ["one-line?"] = false, ["prefer-colon?"] = false, ["utf8?"] = true, depth = 128}
    local lua_pairs = pairs
    local lua_ipairs = ipairs
    local function pairs(t)
      local _1_0 = getmetatable(t)
      if ((_G.type(_1_0) == "table") and (nil ~= _1_0.__pairs)) then
        local p = _1_0.__pairs
        return p(t)
      else
        local _ = _1_0
        return lua_pairs(t)
      end
    end
    local function ipairs(t)
      local _3_0 = getmetatable(t)
      if ((_G.type(_3_0) == "table") and (nil ~= _3_0.__ipairs)) then
        local i = _3_0.__ipairs
        return i(t)
      else
        local _ = _3_0
        return lua_ipairs(t)
      end
    end
    local function length_2a(t)
      local _5_0 = getmetatable(t)
      if ((_G.type(_5_0) == "table") and (nil ~= _5_0.__len)) then
        local l = _5_0.__len
        return l(t)
      else
        local _ = _5_0
        return #t
      end
    end
    local function get_default(key)
      local _7_0 = default_opts[key]
      if (_7_0 == nil) then
        return error(("option '%s' doesn't have a default value, use the :after key to set it"):format(tostring(key)))
      elseif (nil ~= _7_0) then
        local v = _7_0
        return v
      end
    end
    local function getopt(options, key)
      local _9_0 = options[key]
      if ((_G.type(_9_0) == "table") and (nil ~= _9_0.once)) then
        local val_2a = _9_0.once
        return val_2a
      else
        local _3fval = _9_0
        return _3fval
      end
    end
    local function normalize_opts(options)
      local tbl_14_ = {}
      for k, v in pairs(options) do
        local k_15_, v_16_ = nil, nil
        local function _12_()
          local _11_0 = v
          if ((_G.type(_11_0) == "table") and (nil ~= _11_0.after)) then
            local val = _11_0.after
            return val
          else
            local function _13_()
              return v.once
            end
            if ((_G.type(_11_0) == "table") and _13_()) then
              return get_default(k)
            else
              local _ = _11_0
              return v
            end
          end
        end
        k_15_, v_16_ = k, _12_()
        if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
          tbl_14_[k_15_] = v_16_
        end
      end
      return tbl_14_
    end
    local function sort_keys(_16_0, _18_0)
      local _17_ = _16_0
      local a = _17_[1]
      local _19_ = _18_0
      local b = _19_[1]
      local ta = type(a)
      local tb = type(b)
      if ((ta == tb) and ((ta == "string") or (ta == "number"))) then
        return (a < b)
      else
        local dta = type_order[ta]
        local dtb = type_order[tb]
        if (dta and dtb) then
          return (dta < dtb)
        elseif dta then
          return true
        elseif dtb then
          return false
        else
          return (ta < tb)
        end
      end
    end
    local function max_index_gap(kv)
      local gap = 0
      if (0 < length_2a(kv)) then
        local i = 0
        for _, _22_0 in ipairs(kv) do
          local _23_ = _22_0
          local k = _23_[1]
          if (gap < (k - i)) then
            gap = (k - i)
          end
          i = k
        end
      end
      return gap
    end
    local function fill_gaps(kv)
      local missing_indexes = {}
      local i = 0
      for _, _26_0 in ipairs(kv) do
        local _27_ = _26_0
        local j = _27_[1]
        i = (i + 1)
        while (i < j) do
          table.insert(missing_indexes, i)
          i = (i + 1)
        end
      end
      for _, k in ipairs(missing_indexes) do
        table.insert(kv, k, {k})
      end
      return nil
    end
    local function table_kv_pairs(t, options)
      local assoc_3f = false
      local kv = {}
      local insert = table.insert
      for k, v in pairs(t) do
        if ((type(k) ~= "number") or (k < 1)) then
          assoc_3f = true
        end
        insert(kv, {k, v})
      end
      table.sort(kv, sort_keys)
      if not assoc_3f then
        if (options["max-sparse-gap"] < max_index_gap(kv)) then
          assoc_3f = true
        else
          fill_gaps(kv)
        end
      end
      if (length_2a(kv) == 0) then
        return kv, "empty"
      else
        local function _31_()
          if assoc_3f then
            return "table"
          else
            return "seq"
          end
        end
        return kv, _31_()
      end
    end
    local function count_table_appearances(t, appearances)
      if (type(t) == "table") then
        if not appearances[t] then
          appearances[t] = 1
          for k, v in pairs(t) do
            count_table_appearances(k, appearances)
            count_table_appearances(v, appearances)
          end
        else
          appearances[t] = ((appearances[t] or 0) + 1)
        end
      end
      return appearances
    end
    local function save_table(t, seen)
      local seen0 = (seen or {len = 0})
      local id = (seen0.len + 1)
      if not seen0[t] then
        seen0[t] = id
        seen0.len = id
      end
      return seen0
    end
    local function detect_cycle(t, seen)
      if ("table" == type(t)) then
        seen[t] = true
        local res = nil
        for k, v in pairs(t) do
          if res then break end
          res = (seen[k] or detect_cycle(k, seen) or seen[v] or detect_cycle(v, seen))
        end
        return res
      end
    end
    local function visible_cycle_3f(t, options)
      return (getopt(options, "detect-cycles?") and detect_cycle(t, {}) and save_table(t, options.seen) and (1 < (options.appearances[t] or 0)))
    end
    local function table_indent(indent, id)
      local opener_length = nil
      if id then
        opener_length = (length_2a(tostring(id)) + 2)
      else
        opener_length = 1
      end
      return (indent + opener_length)
    end
    local pp = nil
    local function concat_table_lines(elements, options, multiline_3f, indent, table_type, prefix, last_comment_3f)
      local indent_str = ("\n" .. string.rep(" ", indent))
      local open = nil
      local function _38_()
        if ("seq" == table_type) then
          return "["
        else
          return "{"
        end
      end
      open = ((prefix or "") .. _38_())
      local close = nil
      if ("seq" == table_type) then
        close = "]"
      else
        close = "}"
      end
      local oneline = (open .. table.concat(elements, " ") .. close)
      if (not getopt(options, "one-line?") and (multiline_3f or (options["line-length"] < (indent + length_2a(oneline))) or last_comment_3f)) then
        local function _40_()
          if last_comment_3f then
            return indent_str
          else
            return ""
          end
        end
        return (open .. table.concat(elements, indent_str) .. _40_() .. close)
      else
        return oneline
      end
    end
    local function utf8_len(x)
      local n = 0
      for _ in string.gmatch(x, "[%z\1-\127\192-\247]") do
        n = (n + 1)
      end
      return n
    end
    local function comment_3f(x)
      if ("table" == type(x)) then
        local fst = x[1]
        return (("string" == type(fst)) and (nil ~= fst:find("^;")))
      else
        return false
      end
    end
    local function pp_associative(t, kv, options, indent)
      local multiline_3f = false
      local id = options.seen[t]
      if (options.depth <= options.level) then
        return "{...}"
      elseif (id and getopt(options, "detect-cycles?")) then
        return ("@" .. id .. "{...}")
      else
        local visible_cycle_3f0 = visible_cycle_3f(t, options)
        local id0 = (visible_cycle_3f0 and options.seen[t])
        local indent0 = table_indent(indent, id0)
        local slength = nil
        if getopt(options, "utf8?") then
          slength = utf8_len
        else
          local function _43_(_241)
            return #_241
          end
          slength = _43_
        end
        local prefix = nil
        if visible_cycle_3f0 then
          prefix = ("@" .. id0)
        else
          prefix = ""
        end
        local items = nil
        do
          local options0 = normalize_opts(options)
          local tbl_17_ = {}
          local i_18_ = #tbl_17_
          for _, _46_0 in ipairs(kv) do
            local _47_ = _46_0
            local k = _47_[1]
            local v = _47_[2]
            local val_19_ = nil
            do
              local k0 = pp(k, options0, (indent0 + 1), true)
              local v0 = pp(v, options0, (indent0 + slength(k0) + 1))
              multiline_3f = (multiline_3f or k0:find("\n") or v0:find("\n"))
              val_19_ = (k0 .. " " .. v0)
            end
            if (nil ~= val_19_) then
              i_18_ = (i_18_ + 1)
              tbl_17_[i_18_] = val_19_
            end
          end
          items = tbl_17_
        end
        return concat_table_lines(items, options, multiline_3f, indent0, "table", prefix, false)
      end
    end
    local function pp_sequence(t, kv, options, indent)
      local multiline_3f = false
      local id = options.seen[t]
      if (options.depth <= options.level) then
        return "[...]"
      elseif (id and getopt(options, "detect-cycles?")) then
        return ("@" .. id .. "[...]")
      else
        local visible_cycle_3f0 = visible_cycle_3f(t, options)
        local id0 = (visible_cycle_3f0 and options.seen[t])
        local indent0 = table_indent(indent, id0)
        local prefix = nil
        if visible_cycle_3f0 then
          prefix = ("@" .. id0)
        else
          prefix = ""
        end
        local last_comment_3f = comment_3f(t[#t])
        local items = nil
        do
          local options0 = normalize_opts(options)
          local tbl_17_ = {}
          local i_18_ = #tbl_17_
          for _, _51_0 in ipairs(kv) do
            local _52_ = _51_0
            local _0 = _52_[1]
            local v = _52_[2]
            local val_19_ = nil
            do
              local v0 = pp(v, options0, indent0)
              multiline_3f = (multiline_3f or v0:find("\n") or v0:find("^;"))
              val_19_ = v0
            end
            if (nil ~= val_19_) then
              i_18_ = (i_18_ + 1)
              tbl_17_[i_18_] = val_19_
            end
          end
          items = tbl_17_
        end
        return concat_table_lines(items, options, multiline_3f, indent0, "seq", prefix, last_comment_3f)
      end
    end
    local function concat_lines(lines, options, indent, force_multi_line_3f)
      if (length_2a(lines) == 0) then
        if getopt(options, "empty-as-sequence?") then
          return "[]"
        else
          return "{}"
        end
      else
        local oneline = nil
        local _56_
        do
          local tbl_17_ = {}
          local i_18_ = #tbl_17_
          for _, line in ipairs(lines) do
            local val_19_ = line:gsub("^%s+", "")
            if (nil ~= val_19_) then
              i_18_ = (i_18_ + 1)
              tbl_17_[i_18_] = val_19_
            end
          end
          _56_ = tbl_17_
        end
        oneline = table.concat(_56_, " ")
        if (not getopt(options, "one-line?") and (force_multi_line_3f or oneline:find("\n") or (options["line-length"] < (indent + length_2a(oneline))))) then
          return table.concat(lines, ("\n" .. string.rep(" ", indent)))
        else
          return oneline
        end
      end
    end
    local function pp_metamethod(t, metamethod, options, indent)
      if (options.depth <= options.level) then
        if getopt(options, "empty-as-sequence?") then
          return "[...]"
        else
          return "{...}"
        end
      else
        local _ = nil
        local function _61_(_241)
          return visible_cycle_3f(_241, options)
        end
        options["visible-cycle?"] = _61_
        _ = nil
        local lines, force_multi_line_3f = nil, nil
        do
          local options0 = normalize_opts(options)
          lines, force_multi_line_3f = metamethod(t, pp, options0, indent)
        end
        options["visible-cycle?"] = nil
        local _62_0 = type(lines)
        if (_62_0 == "string") then
          return lines
        elseif (_62_0 == "table") then
          return concat_lines(lines, options, indent, force_multi_line_3f)
        else
          local _0 = _62_0
          return error("__fennelview metamethod must return a table of lines")
        end
      end
    end
    local function pp_table(x, options, indent)
      options.level = (options.level + 1)
      local x0 = nil
      do
        local _65_0 = nil
        if getopt(options, "metamethod?") then
          local _66_0 = x
          if (nil ~= _66_0) then
            local _67_0 = getmetatable(_66_0)
            if (nil ~= _67_0) then
              _65_0 = _67_0.__fennelview
            else
              _65_0 = _67_0
            end
          else
            _65_0 = _66_0
          end
        else
        _65_0 = nil
        end
        if (nil ~= _65_0) then
          local metamethod = _65_0
          x0 = pp_metamethod(x, metamethod, options, indent)
        else
          local _ = _65_0
          local _71_0, _72_0 = table_kv_pairs(x, options)
          if (true and (_72_0 == "empty")) then
            local _0 = _71_0
            if getopt(options, "empty-as-sequence?") then
              x0 = "[]"
            else
              x0 = "{}"
            end
          elseif ((nil ~= _71_0) and (_72_0 == "table")) then
            local kv = _71_0
            x0 = pp_associative(x, kv, options, indent)
          elseif ((nil ~= _71_0) and (_72_0 == "seq")) then
            local kv = _71_0
            x0 = pp_sequence(x, kv, options, indent)
          else
          x0 = nil
          end
        end
      end
      options.level = (options.level - 1)
      return x0
    end
    local function exponential_notation(n, fallback)
      local s = nil
      for i = 0, 308 do
        if s then break end
        local s0 = string.format(("%." .. i .. "e"), n)
        if (n == tonumber(s0)) then
          local exp = s0:match("e%+?(%d+)$")
          if (exp and (14 < tonumber(exp))) then
            s = s0
          else
            s = fallback
          end
        else
        s = nil
        end
      end
      return s
    end
    local inf_str = tostring((1 / 0))
    local neg_inf_str = tostring((-1 / 0))
    local function number__3estring(n, options)
      local val = nil
      if (n ~= n) then
        if (45 == string.byte(tostring(n))) then
          val = (options["negative-nan"] or "-.nan")
        else
          val = (options.nan or ".nan")
        end
      elseif (math.floor(n) == n) then
        local s1 = string.format("%.f", n)
        if (s1 == inf_str) then
          val = (options.infinity or ".inf")
        elseif (s1 == neg_inf_str) then
          val = (options["negative-infinity"] or "-.inf")
        elseif (s1 == tostring(n)) then
          val = s1
        else
          val = (exponential_notation(n, s1) or s1)
        end
      else
        val = tostring(n)
      end
      local _81_0 = string.gsub(val, ",", ".")
      return _81_0
    end
    local function colon_string_3f(s)
      return s:find("^[-%w?^_!$%&*+./|<=>]+$")
    end
    local utf8_inits = {{["max-byte"] = 127, ["max-code"] = 127, ["min-byte"] = 0, ["min-code"] = 0, len = 1}, {["max-byte"] = 223, ["max-code"] = 2047, ["min-byte"] = 192, ["min-code"] = 128, len = 2}, {["max-byte"] = 239, ["max-code"] = 65535, ["min-byte"] = 224, ["min-code"] = 2048, len = 3}, {["max-byte"] = 247, ["max-code"] = 1114111, ["min-byte"] = 240, ["min-code"] = 65536, len = 4}}
    local function default_byte_escape(byte, _options)
      return ("\\%03d"):format(byte)
    end
    local function utf8_escape(str, options)
      local function validate_utf8(str0, index)
        local inits = utf8_inits
        local byte = string.byte(str0, index)
        local init = nil
        do
          local ret = nil
          for _, init0 in ipairs(inits) do
            if ret then break end
            ret = (byte and (function(_82_,_83_,_84_) return (_82_ <= _83_) and (_83_ <= _84_) end)(init0["min-byte"],byte,init0["max-byte"]) and init0)
          end
          init = ret
        end
        local code = nil
        local function _85_()
          local code0 = nil
          if init then
            code0 = (byte - init["min-byte"])
          else
            code0 = nil
          end
          for i = (index + 1), (index + init.len + -1) do
            local byte0 = string.byte(str0, i)
            code0 = (byte0 and code0 and ((128 <= byte0) and (byte0 <= 191)) and ((code0 * 64) + (byte0 - 128)))
          end
          return code0
        end
        code = (init and _85_())
        if (code and (function(_87_,_88_,_89_) return (_87_ <= _88_) and (_88_ <= _89_) end)(init["min-code"],code,init["max-code"]) and not ((55296 <= code) and (code <= 57343))) then
          return init.len
        end
      end
      local index = 1
      local output = {}
      local byte_escape = (getopt(options, "byte-escape") or default_byte_escape)
      while (index <= #str) do
        local nexti = (string.find(str, "[\128-\255]", index) or (#str + 1))
        local len = validate_utf8(str, nexti)
        table.insert(output, string.sub(str, index, (nexti + (len or 0) + -1)))
        if (not len and (nexti <= #str)) then
          table.insert(output, byte_escape(str:byte(nexti), options))
        end
        if len then
          index = (nexti + len)
        else
          index = (nexti + 1)
        end
      end
      return table.concat(output)
    end
    local function pp_string(str, options, indent)
      local len = length_2a(str)
      local esc_newline_3f = ((len < 2) or (getopt(options, "escape-newlines?") and (len < (options["line-length"] - indent))))
      local byte_escape = (getopt(options, "byte-escape") or default_byte_escape)
      local escs = nil
      local _93_
      if esc_newline_3f then
        _93_ = "\\n"
      else
        _93_ = "\n"
      end
      local function _95_(_241, _242)
        return byte_escape(_242:byte(), options)
      end
      escs = setmetatable({["\""] = "\\\"", ["\11"] = "\\v", ["\12"] = "\\f", ["\13"] = "\\r", ["\7"] = "\\a", ["\8"] = "\\b", ["\9"] = "\\t", ["\\"] = "\\\\", ["\n"] = _93_}, {__index = _95_})
      local str0 = ("\"" .. str:gsub("[%c\\\"]", escs) .. "\"")
      if getopt(options, "utf8?") then
        return utf8_escape(str0, options)
      else
        return str0
      end
    end
    local function make_options(t, options)
      local defaults = nil
      do
        local tbl_14_ = {}
        for k, v in pairs(default_opts) do
          local k_15_, v_16_ = k, v
          if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
            tbl_14_[k_15_] = v_16_
          end
        end
        defaults = tbl_14_
      end
      local overrides = {appearances = count_table_appearances(t, {}), level = 0, seen = {len = 0}}
      for k, v in pairs((options or {})) do
        defaults[k] = v
      end
      for k, v in pairs(overrides) do
        defaults[k] = v
      end
      return defaults
    end
    local function _98_(x, options, indent, colon_3f)
      local indent0 = (indent or 0)
      local options0 = (options or make_options(x))
      local x0 = nil
      if options0.preprocess then
        x0 = options0.preprocess(x, options0)
      else
        x0 = x
      end
      local tv = type(x0)
      local function _101_()
        local _100_0 = getmetatable(x0)
        if ((_G.type(_100_0) == "table") and true) then
          local __fennelview = _100_0.__fennelview
          return __fennelview
        end
      end
      if ((tv == "table") or ((tv == "userdata") and _101_())) then
        return pp_table(x0, options0, indent0)
      elseif (tv == "number") then
        return number__3estring(x0, options0)
      else
        local function _103_()
          if (colon_3f ~= nil) then
            return colon_3f
          elseif ("function" == type(options0["prefer-colon?"])) then
            return options0["prefer-colon?"](x0)
          else
            return getopt(options0, "prefer-colon?")
          end
        end
        if ((tv == "string") and colon_string_3f(x0) and _103_()) then
          return (":" .. x0)
        elseif (tv == "string") then
          return pp_string(x0, options0, indent0)
        elseif ((tv == "boolean") or (tv == "nil")) then
          return tostring(x0)
        else
          return ("#<" .. tostring(x0) .. ">")
        end
      end
    end
    pp = _98_
    local function _view(x, _3foptions)
      return pp(x, make_options(x, _3foptions), 0)
    end
    return _view
  end
  package.preload["fennel.utils"] = package.preload["fennel.utils"] or function(...)
    local view = require("fennel.view")
    local version = "1.5.1"
    local function luajit_vm_3f()
      return ((nil ~= _G.jit) and (type(_G.jit) == "table") and (nil ~= _G.jit.on) and (nil ~= _G.jit.off) and (type(_G.jit.version_num) == "number"))
    end
    local function luajit_vm_version()
      local jit_os = nil
      if (_G.jit.os == "OSX") then
        jit_os = "macOS"
      else
        jit_os = _G.jit.os
      end
      return (_G.jit.version .. " " .. jit_os .. "/" .. _G.jit.arch)
    end
    local function fengari_vm_3f()
      return ((nil ~= _G.fengari) and (type(_G.fengari) == "table") and (nil ~= _G.fengari.VERSION) and (type(_G.fengari.VERSION_NUM) == "number"))
    end
    local function fengari_vm_version()
      return (_G.fengari.RELEASE .. " (" .. _VERSION .. ")")
    end
    local function lua_vm_version()
      if luajit_vm_3f() then
        return luajit_vm_version()
      elseif fengari_vm_3f() then
        return fengari_vm_version()
      else
        return ("PUC " .. _VERSION)
      end
    end
    local function runtime_version(_3fas_table)
      if _3fas_table then
        return {fennel = version, lua = lua_vm_version()}
      else
        return ("Fennel " .. version .. " on " .. lua_vm_version())
      end
    end
    local len = nil
    do
      local _108_0, _109_0 = pcall(require, "utf8")
      if ((_108_0 == true) and (nil ~= _109_0)) then
        local utf8 = _109_0
        len = utf8.len
      else
        local _ = _108_0
        len = string.len
      end
    end
    local kv_order = {boolean = 2, number = 1, string = 3, table = 4}
    local function kv_compare(a, b)
      local _111_0, _112_0 = type(a), type(b)
      if (((_111_0 == "number") and (_112_0 == "number")) or ((_111_0 == "string") and (_112_0 == "string"))) then
        return (a < b)
      else
        local function _113_()
          local a_t = _111_0
          local b_t = _112_0
          return (a_t ~= b_t)
        end
        if (((nil ~= _111_0) and (nil ~= _112_0)) and _113_()) then
          local a_t = _111_0
          local b_t = _112_0
          return ((kv_order[a_t] or 5) < (kv_order[b_t] or 5))
        else
          local _ = _111_0
          return (tostring(a) < tostring(b))
        end
      end
    end
    local function add_stable_keys(succ, prev_key, src, _3fpred)
      local first = prev_key
      local last = nil
      do
        local prev = prev_key
        for _, k in ipairs(src) do
          if ((prev == k) or (succ[k] ~= nil) or (_3fpred and not _3fpred(k))) then
            prev = prev
          else
            if (first == nil) then
              first = k
              prev = k
            elseif (prev ~= nil) then
              succ[prev] = k
              prev = k
            else
              prev = k
            end
          end
        end
        last = prev
      end
      return succ, last, first
    end
    local function stablepairs(t)
      local mt_keys = nil
      do
        local _117_0 = getmetatable(t)
        if (nil ~= _117_0) then
          _117_0 = _117_0.keys
        end
        mt_keys = _117_0
      end
      local succ, prev, first_mt = nil, nil, nil
      local function _119_(_241)
        return t[_241]
      end
      succ, prev, first_mt = add_stable_keys({}, nil, (mt_keys or {}), _119_)
      local pairs_keys = nil
      do
        local _120_0 = nil
        do
          local tbl_17_ = {}
          local i_18_ = #tbl_17_
          for k in pairs(t) do
            local val_19_ = k
            if (nil ~= val_19_) then
              i_18_ = (i_18_ + 1)
              tbl_17_[i_18_] = val_19_
            end
          end
          _120_0 = tbl_17_
        end
        table.sort(_120_0, kv_compare)
        pairs_keys = _120_0
      end
      local succ0, _, first_after_mt = add_stable_keys(succ, prev, pairs_keys)
      local first = nil
      if (first_mt == nil) then
        first = first_after_mt
      else
        first = first_mt
      end
      local function stablenext(tbl, key)
        local _123_0 = nil
        if (key == nil) then
          _123_0 = first
        else
          _123_0 = succ0[key]
        end
        if (nil ~= _123_0) then
          local next_key = _123_0
          local _125_0 = tbl[next_key]
          if (_125_0 ~= nil) then
            return next_key, _125_0
          else
            return _125_0
          end
        end
      end
      return stablenext, t, nil
    end
    local function get_in(tbl, path)
      if (nil ~= path[1]) then
        local t = tbl
        for _, k in ipairs(path) do
          if (nil == t) then break end
          if (type(t) == "table") then
            t = t[k]
          else
          t = nil
          end
        end
        return t
      end
    end
    local function copy(_3ffrom, _3fto)
      local tbl_14_ = (_3fto or {})
      for k, v in pairs((_3ffrom or {})) do
        local k_15_, v_16_ = k, v
        if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
          tbl_14_[k_15_] = v_16_
        end
      end
      return tbl_14_
    end
    local function member_3f(x, tbl, _3fn)
      local _131_0 = tbl[(_3fn or 1)]
      if (_131_0 == x) then
        return true
      elseif (_131_0 == nil) then
        return nil
      else
        local _ = _131_0
        return member_3f(x, tbl, ((_3fn or 1) + 1))
      end
    end
    local function maxn(tbl)
      local max = 0
      for k in pairs(tbl) do
        if ("number" == type(k)) then
          max = math.max(max, k)
        else
          max = max
        end
      end
      return max
    end
    local function every_3f(t, predicate)
      local result = true
      for _, item in ipairs(t) do
        if not result then break end
        result = predicate(item)
      end
      return result
    end
    local function allpairs(tbl)
      assert((type(tbl) == "table"), "allpairs expects a table")
      local t = tbl
      local seen = {}
      local function allpairs_next(_, state)
        local next_state, value = next(t, state)
        if seen[next_state] then
          return allpairs_next(nil, next_state)
        elseif next_state then
          seen[next_state] = true
          return next_state, value
        else
          local _134_0 = getmetatable(t)
          if ((_G.type(_134_0) == "table") and true) then
            local __index = _134_0.__index
            if ("table" == type(__index)) then
              t = __index
              return allpairs_next(t)
            end
          end
        end
      end
      return allpairs_next
    end
    local function deref(self)
      return self[1]
    end
    local function list__3estring(self, _3fview, _3foptions, _3findent)
      local viewed = nil
      do
        local tbl_17_ = {}
        local i_18_ = #tbl_17_
        for i = 1, maxn(self) do
          local val_19_ = nil
          if _3fview then
            val_19_ = _3fview(self[i], _3foptions, _3findent)
          else
            val_19_ = view(self[i])
          end
          if (nil ~= val_19_) then
            i_18_ = (i_18_ + 1)
            tbl_17_[i_18_] = val_19_
          end
        end
        viewed = tbl_17_
      end
      return ("(" .. table.concat(viewed, " ") .. ")")
    end
    local function comment_view(c)
      return c, true
    end
    local function sym_3d(a, b)
      return ((deref(a) == deref(b)) and (getmetatable(a) == getmetatable(b)))
    end
    local function sym_3c(a, b)
      return (a[1] < tostring(b))
    end
    local symbol_mt = {"SYMBOL", __eq = sym_3d, __fennelview = deref, __lt = sym_3c, __tostring = deref}
    local expr_mt = nil
    local function _140_(x)
      return tostring(deref(x))
    end
    expr_mt = {"EXPR", __tostring = _140_}
    local list_mt = {"LIST", __fennelview = list__3estring, __tostring = list__3estring}
    local comment_mt = {"COMMENT", __eq = sym_3d, __fennelview = comment_view, __lt = sym_3c, __tostring = deref}
    local sequence_marker = {"SEQUENCE"}
    local varg_mt = {"VARARG", __fennelview = deref, __tostring = deref}
    local getenv = nil
    local function _141_()
      return nil
    end
    getenv = ((os and os.getenv) or _141_)
    local function debug_on_3f(flag)
      local level = (getenv("FENNEL_DEBUG") or "")
      return ((level == "all") or level:find(flag))
    end
    local function list(...)
      return setmetatable({...}, list_mt)
    end
    local function sym(str, _3fsource)
      local _142_
      do
        local tbl_14_ = {str}
        for k, v in pairs((_3fsource or {})) do
          local k_15_, v_16_ = nil, nil
          if (type(k) == "string") then
            k_15_, v_16_ = k, v
          else
          k_15_, v_16_ = nil
          end
          if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
            tbl_14_[k_15_] = v_16_
          end
        end
        _142_ = tbl_14_
      end
      return setmetatable(_142_, symbol_mt)
    end
    local function sequence(...)
      local function _145_(seq, view0, inspector, indent)
        local opts = nil
        do
          inspector["empty-as-sequence?"] = {after = inspector["empty-as-sequence?"], once = true}
          inspector["metamethod?"] = {after = inspector["metamethod?"], once = false}
          opts = inspector
        end
        return view0(seq, opts, indent)
      end
      return setmetatable({...}, {__fennelview = _145_, sequence = sequence_marker})
    end
    local function expr(strcode, etype)
      return setmetatable({strcode, type = etype}, expr_mt)
    end
    local function comment_2a(contents, _3fsource)
      local _146_ = (_3fsource or {})
      local filename = _146_["filename"]
      local line = _146_["line"]
      return setmetatable({contents, filename = filename, line = line}, comment_mt)
    end
    local function varg(_3fsource)
      local _147_
      do
        local tbl_14_ = {"..."}
        for k, v in pairs((_3fsource or {})) do
          local k_15_, v_16_ = nil, nil
          if (type(k) == "string") then
            k_15_, v_16_ = k, v
          else
          k_15_, v_16_ = nil
          end
          if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
            tbl_14_[k_15_] = v_16_
          end
        end
        _147_ = tbl_14_
      end
      return setmetatable(_147_, varg_mt)
    end
    local function expr_3f(x)
      return ((type(x) == "table") and (getmetatable(x) == expr_mt) and x)
    end
    local function varg_3f(x)
      return ((type(x) == "table") and (getmetatable(x) == varg_mt) and x)
    end
    local function list_3f(x)
      return ((type(x) == "table") and (getmetatable(x) == list_mt) and x)
    end
    local function sym_3f(x, _3fname)
      return ((type(x) == "table") and (getmetatable(x) == symbol_mt) and ((nil == _3fname) or (x[1] == _3fname)) and x)
    end
    local function sequence_3f(x)
      local mt = ((type(x) == "table") and getmetatable(x))
      return (mt and (mt.sequence == sequence_marker) and x)
    end
    local function comment_3f(x)
      return ((type(x) == "table") and (getmetatable(x) == comment_mt) and x)
    end
    local function table_3f(x)
      return ((type(x) == "table") and not varg_3f(x) and (getmetatable(x) ~= list_mt) and (getmetatable(x) ~= symbol_mt) and not comment_3f(x) and x)
    end
    local function kv_table_3f(t)
      if table_3f(t) then
        local nxt, t0, k = pairs(t)
        local len0 = #t0
        local next_state = nil
        if (0 == len0) then
          next_state = k
        else
          next_state = len0
        end
        return ((nil ~= nxt(t0, next_state)) and t0)
      end
    end
    local function string_3f(x)
      if (type(x) == "string") then
        return x
      else
        return false
      end
    end
    local function multi_sym_3f(str)
      if sym_3f(str) then
        return multi_sym_3f(tostring(str))
      elseif (type(str) ~= "string") then
        return false
      else
        local function _153_()
          local parts = {}
          for part in str:gmatch("[^%.%:]+[%.%:]?") do
            local last_char = part:sub(-1)
            if (last_char == ":") then
              parts["multi-sym-method-call"] = true
            end
            if ((last_char == ":") or (last_char == ".")) then
              parts[(#parts + 1)] = part:sub(1, -2)
            else
              parts[(#parts + 1)] = part
            end
          end
          return (next(parts) and parts)
        end
        return ((str:match("%.") or str:match(":")) and not str:match("%.%.") and (str:byte() ~= string.byte(".")) and (str:byte() ~= string.byte(":")) and (str:byte(-1) ~= string.byte(".")) and (str:byte(-1) ~= string.byte(":")) and _153_())
      end
    end
    local function call_of_3f(ast, callee)
      return (list_3f(ast) and sym_3f(ast[1], callee))
    end
    local function quoted_3f(symbol)
      return symbol.quoted
    end
    local function idempotent_expr_3f(x)
      local t = type(x)
      return ((t == "string") or (t == "number") or (t == "boolean") or (sym_3f(x) and not multi_sym_3f(x)))
    end
    local function walk_tree(root, f, _3fcustom_iterator)
      local function walk(iterfn, parent, idx, node)
        if (f(idx, node, parent) and not sym_3f(node)) then
          for k, v in iterfn(node) do
            walk(iterfn, node, k, v)
          end
          return nil
        end
      end
      walk((_3fcustom_iterator or pairs), nil, nil, root)
      return root
    end
    local root = nil
    local function _158_()
    end
    root = {chunk = nil, options = nil, reset = _158_, scope = nil}
    root["set-reset"] = function(_159_0)
      local _160_ = _159_0
      local chunk = _160_["chunk"]
      local options = _160_["options"]
      local reset = _160_["reset"]
      local scope = _160_["scope"]
      root.reset = function()
        root.chunk, root.scope, root.options, root.reset = chunk, scope, options, reset
        return nil
      end
      return root.reset
    end
    local lua_keywords = {["and"] = true, ["break"] = true, ["do"] = true, ["else"] = true, ["elseif"] = true, ["end"] = true, ["false"] = true, ["for"] = true, ["function"] = true, ["goto"] = true, ["if"] = true, ["in"] = true, ["local"] = true, ["nil"] = true, ["not"] = true, ["or"] = true, ["repeat"] = true, ["return"] = true, ["then"] = true, ["true"] = true, ["until"] = true, ["while"] = true}
    local function lua_keyword_3f(str)
      local function _162_()
        local _161_0 = root.options
        if (nil ~= _161_0) then
          _161_0 = _161_0.keywords
        end
        if (nil ~= _161_0) then
          _161_0 = _161_0[str]
        end
        return _161_0
      end
      return (lua_keywords[str] or _162_())
    end
    local function valid_lua_identifier_3f(str)
      return (str:match("^[%a_][%w_]*$") and not lua_keyword_3f(str))
    end
    local propagated_options = {"allowedGlobals", "indent", "correlate", "useMetadata", "env", "compiler-env", "compilerEnv"}
    local function propagate_options(options, subopts)
      local tbl_14_ = subopts
      for _, name in ipairs(propagated_options) do
        local k_15_, v_16_ = name, options[name]
        if ((k_15_ ~= nil) and (v_16_ ~= nil)) then
          tbl_14_[k_15_] = v_16_
        end
      end
      return tbl_14_
    end
    local function ast_source(ast)
      if (table_3f(ast) or sequence_3f(ast)) then
        return (getmetatable(ast) or {})
      elseif ("table" == type(ast)) then
        return ast
      else
        return {}
      end
    end
    local function warn(msg, _3fast, _3ffilename, _3fline)
      local _167_0 = nil
      do
        local _168_0 = root.options
        if (nil ~= _168_0) then
          _168_0 = _168_0.warn
        end
        _167_0 = _168_0
      end
      if (nil ~= _167_0) then
        local opt_warn = _167_0
        return opt_warn(msg, _3fast, _3ffilename, _3fline)
      else
        local _ = _167_0
        if (_G.io and _G.io.stderr) then
          local loc = nil
          do
            local _170_0 = ast_source(_3fast)
            if ((_G.type(_170_0) == "table") and (nil ~= _170_0.filename) and (nil ~= _170_0.line)) then
              local filename = _170_0.filename
              local line = _170_0.line
              loc = (filename .. ":" .. line .. ": ")
            else
              local _0 = _170_0
              if (_3ffilename and _3fline) then
                loc = (_3ffilename .. ":" .. _3fline .. ": ")
              else
                loc = ""
              end
            end
          end
          return (_G.io.stderr):write(("--WARNING: %s%s\n"):format(loc, msg))
        end
      end
    end
    local warned = {}
    local function check_plugin_version(_175_0)
      local _176_ = _175_0
      local plugin = _176_
      local name = _176_["name"]
      local versions = _176_["versions"]
      if (not member_3f(version:gsub("-dev", ""), (versions or {})) and not (string_3f(versions) and version:find(versions)) and not warned[plugin]) then
        warned[plugin] = true
        return warn(string.format("plugin %s does not support Fennel version %s", (name or "unknown"), version))
      end
    end
    local function hook_opts(event, _3foptions, ...)
      local plugins = nil
      local function _179_(...)
        local _178_0 = _3foptions
        if (nil ~= _178_0) then
          _178_0 = _178_0.plugins
        end
        return _178_0
      end
      local function _182_(...)
        local _181_0 = root.options
        if (nil ~= _181_0) then
          _181_0 = _181_0.plugins
        end
        return _181_0
      end
      plugins = (_179_(...) or _182_(...))
      if plugins then
        local result = nil
        for _, plugin in ipairs(plugins) do
          if (nil ~= result) then break end
          check_plugin_version(plugin)
          local _184_0 = plugin[event]
          if (nil ~= _184_0) then
            local f = _184_0
            result = f(...)
          else
          result = nil
          end
        end
        return result
      end
    end
    local function hook(event, ...)
      return hook_opts(event, root.options, ...)
    end
    return {["ast-source"] = ast_source, ["call-of?"] = call_of_3f, ["comment?"] = comment_3f, ["debug-on?"] = debug_on_3f, ["every?"] = every_3f, ["expr?"] = expr_3f, ["fennel-module"] = nil, ["get-in"] = get_in, ["hook-opts"] = hook_opts, ["idempotent-expr?"] = idempotent_expr_3f, ["kv-table?"] = kv_table_3f, ["list?"] = list_3f, ["lua-keyword?"] = lua_keyword_3f, ["macro-path"] = table.concat({"./?.fnl", "./?/init-macros.fnl", "./?/init.fnl", getenv("FENNEL_MACRO_PATH")}, ";"), ["member?"] = member_3f, ["multi-sym?"] = multi_sym_3f, ["propagate-options"] = propagate_options, ["quoted?"] = quoted_3f, ["runtime-version"] = runtime_version, ["sequence?"] = sequence_3f, ["string?"] = string_3f, ["sym?"] = sym_3f, ["table?"] = table_3f, ["valid-lua-identifier?"] = valid_lua_identifier_3f, ["varg?"] = varg_3f, ["walk-tree"] = walk_tree, allpairs = allpairs, comment = comment_2a, copy = copy, expr = expr, hook = hook, len = len, list = list, maxn = maxn, path = table.concat({"./?.fnl", "./?/init.fnl", getenv("FENNEL_PATH")}, ";"), root = root, sequence = sequence, stablepairs = stablepairs, sym = sym, varg = varg, version = version, warn = warn}
  end
  utils = require("fennel.utils")
  local parser = require("fennel.parser")
  local compiler = require("fennel.compiler")
  local specials = require("fennel.specials")
  local repl = require("fennel.repl")
  local view = require("fennel.view")
  local function eval_env(env, opts)
    if (env == "_COMPILER") then
      local env0 = specials["make-compiler-env"](nil, compiler.scopes.compiler, {}, opts)
      if (opts.allowedGlobals == nil) then
        opts.allowedGlobals = specials["current-global-names"](env0)
      end
      return specials["wrap-env"](env0)
    else
      return (env and specials["wrap-env"](env))
    end
  end
  local function eval_opts(options, str)
    local opts = utils.copy(options)
    if (opts.allowedGlobals == nil) then
      opts.allowedGlobals = specials["current-global-names"](opts.env)
    end
    if (not opts.filename and not opts.source) then
      opts.source = str
    end
    if (opts.env == "_COMPILER") then
      opts.scope = compiler["make-scope"](compiler.scopes.compiler)
    end
    return opts
  end
  local function eval(str, _3foptions, ...)
    local opts = eval_opts(_3foptions, str)
    local env = eval_env(opts.env, opts)
    local lua_source = compiler["compile-string"](str, opts)
    local loader = nil
    local function _841_(...)
      if opts.filename then
        return ("@" .. opts.filename)
      else
        return str
      end
    end
    loader = specials["load-code"](lua_source, env, _841_(...))
    opts.filename = nil
    return loader(...)
  end
  local function dofile_2a(filename, _3foptions, ...)
    local opts = utils.copy(_3foptions)
    local f = assert(io.open(filename, "rb"))
    local source = assert(f:read("*all"), ("Could not read " .. filename))
    f:close()
    opts.filename = filename
    return eval(source, opts, ...)
  end
  local function syntax()
    local body_3f = {"when", "with-open", "collect", "icollect", "fcollect", "lambda", "\206\187", "macro", "match", "match-try", "case", "case-try", "accumulate", "faccumulate", "doto"}
    local binding_3f = {"collect", "icollect", "fcollect", "each", "for", "let", "with-open", "accumulate", "faccumulate"}
    local define_3f = {"fn", "lambda", "\206\187", "var", "local", "macro", "macros", "global"}
    local deprecated = {"~=", "#", "global", "require-macros", "pick-args"}
    local out = {}
    for k, v in pairs(compiler.scopes.global.specials) do
      local metadata = (compiler.metadata[v] or {})
      out[k] = {["binding-form?"] = utils["member?"](k, binding_3f), ["body-form?"] = metadata["fnl/body-form?"], ["define?"] = utils["member?"](k, define_3f), ["deprecated?"] = utils["member?"](k, deprecated), ["special?"] = true}
    end
    for k in pairs(compiler.scopes.global.macros) do
      out[k] = {["binding-form?"] = utils["member?"](k, binding_3f), ["body-form?"] = utils["member?"](k, body_3f), ["define?"] = utils["member?"](k, define_3f), ["macro?"] = true}
    end
    for k, v in pairs(_G) do
      local _842_0 = type(v)
      if (_842_0 == "function") then
        out[k] = {["function?"] = true, ["global?"] = true}
      elseif (_842_0 == "table") then
        if not k:find("^_") then
          for k2, v2 in pairs(v) do
            if ("function" == type(v2)) then
              out[(k .. "." .. k2)] = {["function?"] = true, ["global?"] = true}
            end
          end
          out[k] = {["global?"] = true}
        end
      end
    end
    return out
  end
  local mod = {["ast-source"] = utils["ast-source"], ["comment?"] = utils["comment?"], ["compile-stream"] = compiler["compile-stream"], ["compile-string"] = compiler["compile-string"], ["list?"] = utils["list?"], ["load-code"] = specials["load-code"], ["macro-loaded"] = specials["macro-loaded"], ["macro-path"] = utils["macro-path"], ["macro-searchers"] = specials["macro-searchers"], ["make-searcher"] = specials["make-searcher"], ["multi-sym?"] = utils["multi-sym?"], ["runtime-version"] = utils["runtime-version"], ["search-module"] = specials["search-module"], ["sequence?"] = utils["sequence?"], ["string-stream"] = parser["string-stream"], ["sym-char?"] = parser["sym-char?"], ["sym?"] = utils["sym?"], ["table?"] = utils["table?"], ["varg?"] = utils["varg?"], comment = utils.comment, compile = compiler.compile, compile1 = compiler.compile1, compileStream = compiler["compile-stream"], compileString = compiler["compile-string"], doc = specials.doc, dofile = dofile_2a, eval = eval, gensym = compiler.gensym, getinfo = compiler.getinfo, granulate = parser.granulate, list = utils.list, loadCode = specials["load-code"], macroLoaded = specials["macro-loaded"], macroPath = utils["macro-path"], macroSearchers = specials["macro-searchers"], makeSearcher = specials["make-searcher"], make_searcher = specials["make-searcher"], mangle = compiler["global-mangling"], metadata = compiler.metadata, parser = parser.parser, path = utils.path, repl = repl, runtimeVersion = utils["runtime-version"], scope = compiler["make-scope"], searchModule = specials["search-module"], searcher = specials["make-searcher"](), sequence = utils.sequence, stringStream = parser["string-stream"], sym = utils.sym, syntax = syntax, traceback = compiler.traceback, unmangle = compiler["global-unmangling"], varg = utils.varg, version = utils.version, view = view}
  mod.install = function(_3fopts)
    table.insert((package.searchers or package.loaders), specials["make-searcher"](_3fopts))
    return mod
  end
  utils["fennel-module"] = mod
  do
    local module_name = "fennel.macros"
    local _ = nil
    local function _846_()
      return mod
    end
    package.preload[module_name] = _846_
    _ = nil
    local env = nil
    do
      local _847_0 = specials["make-compiler-env"](nil, compiler.scopes.compiler, {})
      _847_0["utils"] = utils
      _847_0["fennel"] = mod
      _847_0["get-function-metadata"] = specials["get-function-metadata"]
      env = _847_0
    end
    local built_ins = eval([===[;; fennel-ls: macro-file
    
    ;; These macros are awkward because their definition cannot rely on the any
    ;; built-in macros, only special forms. (no when, no icollect, etc)
    
    (fn copy [t]
      (let [out []]
        (each [_ v (ipairs t)] (table.insert out v))
        (setmetatable out (getmetatable t))))
    
    (fn ->* [val ...]
      "Thread-first macro.
    Take the first value and splice it into the second form as its first argument.
    The value of the second form is spliced into the first arg of the third, etc."
      (var x val)
      (each [_ e (ipairs [...])]
        (let [elt (if (list? e) (copy e) (list e))]
          (table.insert elt 2 x)
          (set x elt)))
      x)
    
    (fn ->>* [val ...]
      "Thread-last macro.
    Same as ->, except splices the value into the last position of each form
    rather than the first."
      (var x val)
      (each [_ e (ipairs [...])]
        (let [elt (if (list? e) (copy e) (list e))]
          (table.insert elt x)
          (set x elt)))
      x)
    
    (fn -?>* [val ?e ...]
      "Nil-safe thread-first macro.
    Same as -> except will short-circuit with nil when it encounters a nil value."
      (if (= nil ?e)
          val
          (not (utils.idempotent-expr? val))
          ;; try again, but with an eval-safe val
          `(let [tmp# ,val]
            (-?> tmp# ,?e ,...))
          (let [call (if (list? ?e) (copy ?e) (list ?e))]
            (table.insert call 2 val)
            `(if (not= nil ,val)
                 ,(-?>* call ...)))))
    
    (fn -?>>* [val ?e ...]
      "Nil-safe thread-last macro.
    Same as ->> except will short-circuit with nil when it encounters a nil value."
      (if (= nil ?e)
          val
          (not (utils.idempotent-expr? val))
          ;; try again, but with an eval-safe val
          `(let [tmp# ,val]
            (-?>> tmp# ,?e ,...))
          (let [call (if (list? ?e) (copy ?e) (list ?e))]
            (table.insert call val)
            `(if (not= ,val nil)
                 ,(-?>>* call ...)))))
    
    (fn ?dot [tbl ...]
      "Nil-safe table look up.
    Same as . (dot), except will short-circuit with nil when it encounters
    a nil value in any of subsequent keys."
      (let [head (gensym :t)
            lookups `(do
                       (var ,head ,tbl)
                       ,head)]
        (each [i k (ipairs [...])]
          ;; Kinda gnarly to reassign in place like this, but it emits the best lua.
          ;; With this impl, it emits a flat, concise, and readable set of ifs
          (table.insert lookups (+ i 2)
                        `(if (not= nil ,head) (set ,head (. ,head ,k)))))
        lookups))
    
    (fn doto* [val ...]
      "Evaluate val and splice it into the first argument of subsequent forms."
      (assert (not= val nil) "missing subject")
      (if (not (utils.idempotent-expr? val))
        `(let [tmp# ,val]
           (doto tmp# ,...))
        (let [form `(do)]
          (each [_ elt (ipairs [...])]
            (let [elt (if (list? elt) (copy elt) (list elt))]
              (table.insert elt 2 val)
              (table.insert form elt)))
          (table.insert form val)
          form)))
    
    (fn when* [condition body1 ...]
      "Evaluate body for side-effects only when condition is truthy."
      (assert body1 "expected body")
      `(if ,condition
           (do
             ,body1
             ,...)))
    
    (fn with-open* [closable-bindings ...]
      "Like `let`, but invokes (v:close) on each binding after evaluating the body.
    The body is evaluated inside `xpcall` so that bound values will be closed upon
    encountering an error before propagating it."
      (let [bodyfn `(fn []
                      ,...)
            closer `(fn close-handlers# [ok# ...]
                      (if ok# ... (error ... 0)))
            traceback `(. (or (. package.loaded ,(fennel-module-name)) _G.debug {})
                          :traceback)]
        (for [i 1 (length closable-bindings) 2]
          (assert (sym? (. closable-bindings i))
                  "with-open only allows symbols in bindings")
          (table.insert closer 4 `(: ,(. closable-bindings i) :close)))
        `(let ,closable-bindings
           ,closer
           (close-handlers# (_G.xpcall ,bodyfn ,traceback)))))
    
    (fn extract-into [iter-tbl]
      (var (into iter-out found?) (values [] (copy iter-tbl)))
      (for [i (length iter-tbl) 2 -1]
        (let [item (. iter-tbl i)]
          (if (or (sym? item "&into") (= :into item))
              (do
                (assert (not found?) "expected only one &into clause")
                (set found? true)
                (set into (. iter-tbl (+ i 1)))
                (table.remove iter-out i)
                (table.remove iter-out i)))))
      (assert (or (not found?) (sym? into) (table? into) (list? into))
              "expected table, function call, or symbol in &into clause")
      (values into iter-out found?))
    
    (fn collect* [iter-tbl key-expr value-expr ...]
      "Return a table made by running an iterator and evaluating an expression that
    returns key-value pairs to be inserted sequentially into the table.  This can
    be thought of as a table comprehension. The body should provide two expressions
    (used as key and value) or nil, which causes it to be omitted.
    
    For example,
      (collect [k v (pairs {:apple \"red\" :orange \"orange\"})]
        (values v k))
    returns
      {:red \"apple\" :orange \"orange\"}
    
    Supports an &into clause after the iterator to put results in an existing table.
    Supports early termination with an &until clause."
      (assert (and (sequence? iter-tbl) (<= 2 (length iter-tbl)))
              "expected iterator binding table")
      (assert (not= nil key-expr) "expected key and value expression")
      (assert (= nil ...)
              "expected 1 or 2 body expressions; wrap multiple expressions with do")
      (assert (or value-expr (list? key-expr)) "need key and value")
      (let [kv-expr (if (= nil value-expr) key-expr `(values ,key-expr ,value-expr))
            (into iter) (extract-into iter-tbl)]
        `(let [tbl# ,into]
           (each ,iter
             (let [(k# v#) ,kv-expr]
               (if (and (not= k# nil) (not= v# nil))
                 (tset tbl# k# v#))))
           tbl#)))
    
    (fn seq-collect [how iter-tbl value-expr ...]
      "Common part between icollect and fcollect for producing sequential tables.
    
    Iteration code only differs in using the for or each keyword, the rest
    of the generated code is identical."
      (assert (not= nil value-expr) "expected table value expression")
      (assert (= nil ...)
              "expected exactly one body expression. Wrap multiple expressions in do")
      (let [(into iter has-into?) (extract-into iter-tbl)]
        (if has-into?
            `(let [tbl# ,into]
               (,how ,iter (let [val# ,value-expr]
                             (table.insert tbl# val#)))
               tbl#)
            ;; believe it or not, using a var here has a pretty good performance
            ;; boost: https://p.hagelb.org/icollect-performance.html
            ;; but it doesn't always work with &into clauses, so skip if that's used
            `(let [tbl# []]
               (var i# 0)
               (,how ,iter
                     (let [val# ,value-expr]
                       (when (not= nil val#)
                         (set i# (+ i# 1))
                         (tset tbl# i# val#))))
               tbl#))))
    
    (fn icollect* [iter-tbl value-expr ...]
      "Return a sequential table made by running an iterator and evaluating an
    expression that returns values to be inserted sequentially into the table.
    This can be thought of as a table comprehension. If the body evaluates to nil
    that element is omitted.
    
    For example,
      (icollect [_ v (ipairs [1 2 3 4 5])]
        (when (not= v 3)
          (* v v)))
    returns
      [1 4 16 25]
    
    Supports an &into clause after the iterator to put results in an existing table.
    Supports early termination with an &until clause."
      (assert (and (sequence? iter-tbl) (<= 2 (length iter-tbl)))
              "expected iterator binding table")
      (seq-collect 'each iter-tbl value-expr ...))
    
    (fn fcollect* [iter-tbl value-expr ...]
      "Return a sequential table made by advancing a range as specified by
    for, and evaluating an expression that returns values to be inserted
    sequentially into the table.  This can be thought of as a range
    comprehension. If the body evaluates to nil that element is omitted.
    
    For example,
      (fcollect [i 1 10 2]
        (when (not= i 3)
          (* i i)))
    returns
      [1 25 49 81]
    
    Supports an &into clause after the range to put results in an existing table.
    Supports early termination with an &until clause."
      (assert (and (sequence? iter-tbl) (< 2 (length iter-tbl)))
              "expected range binding table")
      (seq-collect 'for iter-tbl value-expr ...))
    
    (fn accumulate-impl [for? iter-tbl body ...]
      (assert (and (sequence? iter-tbl) (<= 4 (length iter-tbl)))
              "expected initial value and iterator binding table")
      (assert (not= nil body) "expected body expression")
      (assert (= nil ...)
              "expected exactly one body expression. Wrap multiple expressions with do")
      (let [[accum-var accum-init] iter-tbl
            iter (sym (if for? "for" "each"))] ; accumulate or faccumulate?
        `(do
           (var ,accum-var ,accum-init)
           (,iter ,[(unpack iter-tbl 3)]
                  (set ,accum-var ,body))
           ,(if (list? accum-var)
              (list (sym :values) (unpack accum-var))
              accum-var))))
    
    (fn accumulate* [iter-tbl body ...]
      "Accumulation macro.
    
    It takes a binding table and an expression as its arguments.  In the binding
    table, the first form starts out bound to the second value, which is an initial
    accumulator. The rest are an iterator binding table in the format `each` takes.
    
    It runs through the iterator in each step of which the given expression is
    evaluated, and the accumulator is set to the value of the expression. It
    eventually returns the final value of the accumulator.
    
    For example,
      (accumulate [total 0
                   _ n (pairs {:apple 2 :orange 3})]
        (+ total n))
    returns 5"
      (accumulate-impl false iter-tbl body ...))
    
    (fn faccumulate* [iter-tbl body ...]
      "Identical to accumulate, but after the accumulator the binding table is the
    same as `for` instead of `each`. Like collect to fcollect, will iterate over a
    numerical range like `for` rather than an iterator."
      (accumulate-impl true iter-tbl body ...))
    
    (fn partial* [f ...]
      "Return a function with all arguments partially applied to f."
      (assert f "expected a function to partially apply")
      (let [bindings []
            args []]
        (each [_ arg (ipairs [...])]
          (if (utils.idempotent-expr? arg)
            (table.insert args arg)
            (let [name (gensym)]
              (table.insert bindings name)
              (table.insert bindings arg)
              (table.insert args name))))
        (let [body (list f (unpack args))]
          (table.insert body _VARARG)
          ;; only use the extra let if we need double-eval protection
          (if (= nil (. bindings 1))
              `(fn [,_VARARG] ,body)
              `(let ,bindings
                 (fn [,_VARARG] ,body))))))
    
    (fn pick-args* [n f]
      "Create a function of arity n that applies its arguments to f. Deprecated."
      (if (and _G.io _G.io.stderr)
          (_G.io.stderr:write
           "-- WARNING: pick-args is deprecated and will be removed in the future.\n"))
      (let [bindings []]
        (for [i 1 n] (tset bindings i (gensym)))
        `(fn ,bindings (,f ,(unpack bindings)))))
    
    (fn lambda* [...]
      "Function literal with nil-checked arguments.
    Like `fn`, but will throw an exception if a declared argument is passed in as
    nil, unless that argument's name begins with a question mark."
      (let [args [...]
            args-len (length args)
            has-internal-name? (sym? (. args 1))
            arglist (if has-internal-name? (. args 2) (. args 1))
            metadata-position (if has-internal-name? 3 2)
            (_ check-position) (get-function-metadata [:lambda ...] arglist
                                                      metadata-position)
            empty-body? (< args-len check-position)]
        (fn check! [a]
          (if (table? a)
              (each [_ a (pairs a)] (check! a))
              (let [as (tostring a)]
                (and (not (as:find "^?")) (not= as "&") (not (as:find "^_"))
                     (not= as "...") (not= as "&as")))
              (table.insert args check-position
                            `(_G.assert (not= nil ,a)
                                        ,(: "Missing argument %s on %s:%s" :format
                                            (tostring a)
                                            (or a.filename :unknown)
                                            (or a.line "?"))))))
    
        (assert (= :table (type arglist)) "expected arg list")
        (each [_ a (ipairs arglist)] (check! a))
        (if empty-body? (table.insert args (sym :nil)))
        `(fn ,(unpack args))))
    
    (fn macro* [name ...]
      "Define a single macro."
      (assert (sym? name) "expected symbol for macro name")
      (local args [...])
      `(macros {,(tostring name) (fn ,(unpack args))}))
    
    (fn macrodebug* [form return?]
      "Print the resulting form after performing macroexpansion.
    With a second argument, returns expanded form as a string instead of printing."
      (let [handle (if return? `do `print)]
        ;; TODO: Provide a helpful compiler error in the unlikely edge case of an
        ;; infinite AST instead of the current "silently expand until max depth"
        `(,handle ,(view (macroexpand form _SCOPE) {:detect-cycles? false}))))
    
    (fn import-macros* [binding1 module-name1 ...]
      "Bind a table of macros from each macro module according to a binding form.
    Each binding form can be either a symbol or a k/v destructuring table.
    Example:
      (import-macros mymacros                 :my-macros    ; bind to symbol
                     {:macro1 alias : macro2} :proj.macros) ; import by name"
      (assert (and binding1 module-name1 (= 0 (% (select "#" ...) 2)))
              "expected even number of binding/modulename pairs")
      (for [i 1 (select "#" binding1 module-name1 ...) 2]
        ;; delegate the actual loading of the macros to the require-macros
        ;; special which already knows how to set up the compiler env and stuff.
        ;; this is weird because require-macros is deprecated but it works.
        (let [(binding modname) (select i binding1 module-name1 ...)
              scope (get-scope)
              ;; if the module-name is an expression (and not just a string) we
              ;; patch our expression to have the correct source filename so
              ;; require-macros can pass it down when resolving the module-name.
              expr `(import-macros ,modname)
              filename (if (list? modname) (. modname 1 :filename) :unknown)
              _ (tset expr :filename filename)
              macros* (_SPECIALS.require-macros expr scope {} binding)]
          (if (sym? binding)
              ;; bind whole table of macros to table bound to symbol
              (tset scope.macros (. binding 1) macros*)
              ;; 1-level table destructuring for importing individual macros
              (table? binding)
              (each [macro-name [import-key] (pairs binding)]
                (assert (= :function (type (. macros* macro-name)))
                        (.. "macro " macro-name " not found in module "
                            (tostring modname)))
                (tset scope.macros import-key (. macros* macro-name))))))
      nil)
    
    (fn assert-repl* [condition ...]
      "Enter into a debug REPL  and print the message when condition is false/nil.
    Works as a drop-in replacement for Lua's `assert`.
    REPL `,return` command returns values to assert in place to continue execution."
      {:fnl/arglist [condition ?message ...]}
      (fn add-locals [{: symmeta : parent} locals]
        (each [name (pairs symmeta)]
          (tset locals name (sym name)))
        (if parent (add-locals parent locals) locals))
      `(let [unpack# (or table.unpack _G.unpack)
             pack# (or table.pack #(doto [$...] (tset :n (select :# $...))))
             ;; need to pack/unpack input args to account for (assert (foo)),
             ;; because assert returns *all* arguments upon success
             vals# (pack# ,condition ,...)
             condition# (. vals# 1)
             message# (or (. vals# 2) "assertion failed, entering repl.")]
         (if (not condition#)
             (let [opts# {:assert-repl? true}
                   fennel# (require ,(fennel-module-name))
                   locals# ,(add-locals (get-scope) [])]
               (set opts#.message (fennel#.traceback message#))
               (set opts#.env (collect [k# v# (pairs _G) &into locals#]
                                (if (= nil (. locals# k#)) (values k# v#))))
               (_G.assert (fennel#.repl opts#)))
             (values (unpack# vals# 1 vals#.n)))))
    
    {:-> ->*
     :->> ->>*
     :-?> -?>*
     :-?>> -?>>*
     :?. ?dot
     :doto doto*
     :when when*
     :with-open with-open*
     :collect collect*
     :icollect icollect*
     :fcollect fcollect*
     :accumulate accumulate*
     :faccumulate faccumulate*
     :partial partial*
     :lambda lambda*
     :λ lambda*
     :pick-args pick-args*
     :macro macro*
     :macrodebug macrodebug*
     :import-macros import-macros*
     :assert-repl assert-repl*}
    ]===], {env = env, filename = "src/fennel/macros.fnl", moduleName = module_name, scope = compiler.scopes.compiler, useMetadata = true})
    local _0 = nil
    for k, v in pairs(built_ins) do
      compiler.scopes.global.macros[k] = v
    end
    _0 = nil
    local match_macros = eval([===[;; fennel-ls: macro-file
    
    ;;; Pattern matching
    ;; This is separated out so we can use the "core" macros during the
    ;; implementation of pattern matching.
    
    (fn copy [t] (collect [k v (pairs t)] k v))
    
    (fn double-eval-safe? [x type]
      (or (= :number type) (= :string type) (= :boolean type)
          (and (sym? x) (not (multi-sym? x)))))
    
    (fn with [opts k]
      (doto (copy opts) (tset k true)))
    
    (fn without [opts k]
      (doto (copy opts) (tset k nil)))
    
    (fn case-values [vals pattern unifications case-pattern opts]
      (let [condition `(and)
            bindings []]
        (each [i pat (ipairs pattern)]
          (let [(subcondition subbindings) (case-pattern [(. vals i)] pat
                                                          unifications (without opts :multival?))]
            (table.insert condition subcondition)
            (icollect [_ b (ipairs subbindings) &into bindings] b)))
        (values condition bindings)))
    
    (fn case-table [val pattern unifications case-pattern opts ?top]
      (let [condition (if (= :table ?top) `(and) `(and (= (_G.type ,val) :table)))
            bindings []]
        (each [k pat (pairs pattern)]
          (if (sym? pat :&)
              (let [rest-pat (. pattern (+ k 1))
                    rest-val `(select ,k ((or table.unpack _G.unpack) ,val))
                    subcondition (case-table `(pick-values 1 ,rest-val)
                                              rest-pat unifications case-pattern
                                              (without opts :multival?))]
                (if (not (sym? rest-pat))
                    (table.insert condition subcondition))
                (assert (= nil (. pattern (+ k 2)))
                        "expected & rest argument before last parameter")
                (table.insert bindings rest-pat)
                (table.insert bindings [rest-val]))
              (sym? k :&as)
              (do
                (table.insert bindings pat)
                (table.insert bindings val))
              (and (= :number (type k)) (sym? pat :&as))
              (do
                (assert (= nil (. pattern (+ k 2)))
                        "expected &as argument before last parameter")
                (table.insert bindings (. pattern (+ k 1)))
                (table.insert bindings val))
              ;; don't process the pattern right after &/&as; already got it
              (or (not= :number (type k)) (and (not (sym? (. pattern (- k 1)) :&as))
                                               (not (sym? (. pattern (- k 1)) :&))))
              (let [subval `(. ,val ,k)
                    (subcondition subbindings) (case-pattern [subval] pat
                                                              unifications
                                                              (without opts :multival?))]
                (table.insert condition subcondition)
                (icollect [_ b (ipairs subbindings) &into bindings] b))))
        (values condition bindings)))
    
    (fn case-guard [vals condition guards unifications case-pattern opts]
      (if (. guards 1)
        (let [(pcondition bindings) (case-pattern vals condition unifications opts)
              condition `(and ,(unpack guards))]
           (values `(and ,pcondition
                         (let ,bindings
                           ,condition)) bindings))
        (case-pattern vals condition unifications opts)))
    
    (fn symbols-in-pattern [pattern]
      "gives the set of symbols inside a pattern"
      (if (list? pattern)
          (if (or (sym? (. pattern 1) :where)
                  (sym? (. pattern 1) :=))
              (symbols-in-pattern (. pattern 2))
              (sym? (. pattern 2) :?)
              (symbols-in-pattern (. pattern 1))
              (let [result {}]
                (each [_ child-pattern (ipairs pattern)]
                  (collect [name symbol (pairs (symbols-in-pattern child-pattern)) &into result]
                    name symbol))
                result))
          (sym? pattern)
          (if (and (not (sym? pattern :or))
                   (not (sym? pattern :nil)))
              {(tostring pattern) pattern}
              {})
          (= (type pattern) :table)
          (let [result {}]
            (each [key-pattern value-pattern (pairs pattern)]
              (collect [name symbol (pairs (symbols-in-pattern key-pattern)) &into result]
                name symbol)
              (collect [name symbol (pairs (symbols-in-pattern value-pattern)) &into result]
                name symbol))
            result)
          {}))
    
    (fn symbols-in-every-pattern [pattern-list infer-unification?]
      "gives a list of symbols that are present in every pattern in the list"
      (let [?symbols (accumulate [?symbols nil
                                  _ pattern (ipairs pattern-list)]
                       (let [in-pattern (symbols-in-pattern pattern)]
                         (if ?symbols
                           (do
                             (each [name (pairs ?symbols)]
                               (when (not (. in-pattern name))
                                 (tset ?symbols name nil)))
                             ?symbols)
                           in-pattern)))]
        (icollect [_ symbol (pairs (or ?symbols {}))]
          (if (not (and infer-unification?
                        (in-scope? symbol)))
            symbol))))
    
    (fn case-or [vals pattern guards unifications case-pattern opts]
      (let [pattern [(unpack pattern 2)]
            bindings (symbols-in-every-pattern pattern opts.infer-unification?)]
        (if (= nil (. bindings 1))
            ;; no bindings special case generates simple code
            (let [condition (icollect [_ subpattern (ipairs pattern) &into `(or)]
                              (case-pattern vals subpattern unifications opts))]
              (values (if (. guards 1)
                          `(and ,condition ,(unpack guards))
                          condition)
                      []))
          ;; case with bindings is handled specially, and returns three values instead of two
          (let [matched? (gensym :matched?)
                bindings-mangled (icollect [_ binding (ipairs bindings)]
                                   (gensym (tostring binding)))
                pre-bindings `(if)]
            (each [_ subpattern (ipairs pattern)]
              (let [(subcondition subbindings) (case-guard vals subpattern guards {} case-pattern opts)]
                (table.insert pre-bindings subcondition)
                (table.insert pre-bindings `(let ,subbindings
                                              (values true ,(unpack bindings))))))
            (values matched?
                    [`(,(unpack bindings)) `(values ,(unpack bindings-mangled))]
                    [`(,matched? ,(unpack bindings-mangled)) pre-bindings])))))
    
    (fn case-pattern [vals pattern unifications opts ?top]
      "Take the AST of values and a single pattern and returns a condition
    to determine if it matches as well as a list of bindings to
    introduce for the duration of the body if it does match."
    
      ;; This function returns the following values (multival):
      ;; a "condition", which is an expression that determines whether the
      ;;   pattern should match,
      ;; a "bindings", which bind all of the symbols used in a pattern
      ;; an optional "pre-bindings", which is a list of bindings that happen
      ;;   before the condition and bindings are evaluated. These should only
      ;;   come from a (case-or). In this case there should be no recursion:
      ;;   the call stack should be case-condition > case-pattern > case-or
      ;;
      ;; Here are the expected flags in the opts table:
      ;;   :infer-unification? boolean - if the pattern should guess when to unify  (ie, match -> true, case -> false)
      ;;   :multival? boolean - if the pattern can contain multivals  (in order to disallow patterns like [(1 2)])
      ;;   :in-where? boolean - if the pattern is surrounded by (where)  (where opts into more pattern features)
      ;;   :legacy-guard-allowed? boolean - if the pattern should allow `(a ? b) patterns
    
      ;; we have to assume we're matching against multiple values here until we
      ;; know we're either in a multi-valued clause (in which case we know the #
      ;; of vals) or we're not, in which case we only care about the first one.
      (let [[val] vals]
        (if (and (sym? pattern)
                 (or (sym? pattern :nil)
                     (and opts.infer-unification?
                          (in-scope? pattern)
                          (not (sym? pattern :_)))
                     (and opts.infer-unification?
                          (multi-sym? pattern)
                          (in-scope? (. (multi-sym? pattern) 1)))))
            (values `(= ,val ,pattern) [])
            ;; unify a local we've seen already
            (and (sym? pattern) (. unifications (tostring pattern)))
            (values `(= ,(. unifications (tostring pattern)) ,val) [])
            ;; bind a fresh local
            (sym? pattern)
            (let [wildcard? (: (tostring pattern) :find "^_")]
              (if (not wildcard?) (tset unifications (tostring pattern) val))
              (values (if (or wildcard? (string.find (tostring pattern) "^?")) true
                          `(not= ,(sym :nil) ,val)) [pattern val]))
            ;; opt-in unify with (=)
            (and (list? pattern)
                 (sym? (. pattern 1) :=)
                 (sym? (. pattern 2)))
            (let [bind (. pattern 2)]
              (assert-compile (= 2 (length pattern)) "(=) should take only one argument" pattern)
              (assert-compile (not opts.infer-unification?) "(=) cannot be used inside of match" pattern)
              (assert-compile opts.in-where? "(=) must be used in (where) patterns" pattern)
              (assert-compile (and (sym? bind) (not (sym? bind :nil)) "= has to bind to a symbol" bind))
              (values `(= ,val ,bind) []))
            ;; where-or clause
            (and (list? pattern) (sym? (. pattern 1) :where) (list? (. pattern 2)) (sym? (. pattern 2 1) :or))
            (do
              (assert-compile ?top "can't nest (where) pattern" pattern)
              (case-or vals (. pattern 2) [(unpack pattern 3)] unifications case-pattern (with opts :in-where?)))
            ;; where clause
            (and (list? pattern) (sym? (. pattern 1) :where))
            (do
              (assert-compile ?top "can't nest (where) pattern" pattern)
              (case-guard vals (. pattern 2) [(unpack pattern 3)] unifications case-pattern (with opts :in-where?)))
            ;; or clause (not allowed on its own)
            (and (list? pattern) (sym? (. pattern 1) :or))
            (do
              (assert-compile ?top "can't nest (or) pattern" pattern)
              ;; This assertion can be removed to make patterns more permissive
              (assert-compile false "(or) must be used in (where) patterns" pattern)
              (case-or vals pattern [] unifications case-pattern opts))
            ;; guard clause
            (and (list? pattern) (sym? (. pattern 2) :?))
            (do
              (assert-compile opts.legacy-guard-allowed? "legacy guard clause not supported in case" pattern)
              (case-guard vals (. pattern 1) [(unpack pattern 3)] unifications case-pattern opts))
            ;; multi-valued patterns (represented as lists)
            (list? pattern)
            (do
              (assert-compile opts.multival? "can't nest multi-value destructuring" pattern)
              (case-values vals pattern unifications case-pattern opts))
            ;; table patterns
            (= (type pattern) :table)
            (case-table val pattern unifications case-pattern opts ?top)
            ;; literal value
            (values `(= ,val ,pattern) []))))
    
    (fn add-pre-bindings [out pre-bindings]
      "Decide when to switch from the current `if` AST to a new one"
      (if pre-bindings
          ;; `out` no longer needs to grow.
          ;; Instead, a new tail `if` AST is introduced, which is where the rest of
          ;; the clauses will get appended. This way, all future clauses have the
          ;; pre-bindings in scope.
          (let [tail `(if)]
            (table.insert out true)
            (table.insert out `(let ,pre-bindings ,tail))
            tail)
          ;; otherwise, keep growing the current `if` AST.
          out))
    
    (fn case-condition [vals clauses match? top-table?]
      "Construct the actual `if` AST for the given match values and clauses."
      ;; root is the original `if` AST.
      ;; out is the `if` AST that is currently being grown.
      (let [root `(if)]
        (faccumulate [out root
                      i 1 (length clauses) 2]
          (let [pattern (. clauses i)
                body (. clauses (+ i 1))
                (condition bindings pre-bindings) (case-pattern vals pattern {}
                                                                {:multival? true
                                                                 :infer-unification? match?
                                                                 :legacy-guard-allowed? match?}
                                                                (if top-table? :table true))
                out (add-pre-bindings out pre-bindings)]
            ;; grow the `if` AST by one extra condition
            (table.insert out condition)
            (table.insert out `(let ,bindings ,body))
            out))
        root))
    
    (fn count-case-multival [pattern]
      "Identify the amount of multival values that a pattern requires."
      (if (and (list? pattern) (sym? (. pattern 2) :?))
          (count-case-multival (. pattern 1))
          (and (list? pattern) (sym? (. pattern 1) :where))
          (count-case-multival (. pattern 2))
          (and (list? pattern) (sym? (. pattern 1) :or))
          (accumulate [longest 0
                       _ child-pattern (ipairs pattern)]
            (math.max longest (count-case-multival child-pattern)))
          (list? pattern)
          (length pattern)
          1))
    
    (fn case-count-syms [clauses]
      "Find the length of the largest multi-valued clause"
      (let [patterns (fcollect [i 1 (length clauses) 2]
                       (. clauses i))]
        (accumulate [longest 0
                     _ pattern (ipairs patterns)]
          (math.max longest (count-case-multival pattern)))))
    
    (fn maybe-optimize-table [val clauses]
      (if (faccumulate [all (sequence? val) i 1 (length clauses) 2 &until (not all)]
            (and (sequence? (. clauses i))
                 (accumulate [all2 (next (. clauses i))
                              _ d (ipairs (. clauses i)) &until (not all2)]
                   (and all2 (or (not (sym? d)) (not (: (tostring d) :find "^&")))))))
          (values `(values ,(unpack val))
                  (fcollect [i 1 (length clauses)]
                    (if (= 1 (% i 2))
                        (list (unpack (. clauses i)))
                        (. clauses i))))
          (values val clauses)))
    
    (fn case-impl [match? init-val ...]
      "The shared implementation of case and match."
      (assert (not= init-val nil) "missing subject")
      (assert (= 0 (math.fmod (select :# ...) 2))
              "expected even number of pattern/body pairs")
      (assert (not= 0 (select :# ...))
              "expected at least one pattern/body pair")
      (let [(val clauses) (maybe-optimize-table init-val [...])
            vals-count (case-count-syms clauses)
            skips-multiple-eval-protection? (and (= vals-count 1) (double-eval-safe? val))]
        (if skips-multiple-eval-protection?
          (case-condition (list val) clauses match? (table? init-val))
          ;; protect against multiple evaluation of the value, bind against as
          ;; many values as we ever match against in the clauses.
          (let [vals (fcollect [_ 1 vals-count &into (list)] (gensym))]
            (list `let [vals val] (case-condition vals clauses match? (table? init-val)))))))
    
    (fn case* [val ...]
      "Perform pattern matching on val. See reference for details.
    
    Syntax:
    
    (case data-expression
      pattern body
      (where pattern guards*) body
      (where (or pattern patterns*) guards*) body)"
      (case-impl false val ...))
    
    (fn match* [val ...]
      "Perform pattern matching on val, automatically unifying on variables in
    local scope. See reference for details.
    
    Syntax:
    
    (match data-expression
      pattern body
      (where pattern guards*) body
      (where (or pattern patterns*) guards*) body)"
      (case-impl true val ...))
    
    (fn case-try-step [how expr else pattern body ...]
      (if (= nil pattern body)
          expr
          ;; unlike regular match, we can't know how many values the value
          ;; might evaluate to, so we have to capture them all in ... via IIFE
          ;; to avoid double-evaluation.
          `((fn [...]
              (,how ...
                ,pattern ,(case-try-step how body else ...)
                ,(unpack else)))
            ,expr)))
    
    (fn case-try-impl [how expr pattern body ...]
      (let [clauses [pattern body ...]
            last (. clauses (length clauses))
            catch (if (sym? (and (= :table (type last)) (. last 1)) :catch)
                     (let [[_ & e] (table.remove clauses)] e) ; remove `catch sym
                     [`_# `...])]
        (assert (= 0 (math.fmod (length clauses) 2))
                "expected every pattern to have a body")
        (assert (= 0 (math.fmod (length catch) 2))
                "expected every catch pattern to have a body")
        (case-try-step how expr catch (unpack clauses))))
    
    (fn case-try* [expr pattern body ...]
      "Perform chained pattern matching for a sequence of steps which might fail.
    
    The values from the initial expression are matched against the first pattern.
    If they match, the first body is evaluated and its values are matched against
    the second pattern, etc.
    
    If there is a (catch pat1 body1 pat2 body2 ...) form at the end, any mismatch
    from the steps will be tried against these patterns in sequence as a fallback
    just like a normal match. If there is no catch, the mismatched values will be
    returned as the value of the entire expression."
      (case-try-impl `case expr pattern body ...))
    
    (fn match-try* [expr pattern body ...]
      "Perform chained pattern matching for a sequence of steps which might fail.
    
    The values from the initial expression are matched against the first pattern.
    If they match, the first body is evaluated and its values are matched against
    the second pattern, etc.
    
    If there is a (catch pat1 body1 pat2 body2 ...) form at the end, any mismatch
    from the steps will be tried against these patterns in sequence as a fallback
    just like a normal match. If there is no catch, the mismatched values will be
    returned as the value of the entire expression."
      (case-try-impl `match expr pattern body ...))
    
    {:case case*
     :case-try case-try*
     :match match*
     :match-try match-try*}
    ]===], {allowedGlobals = false, env = env, filename = "src/fennel/match.fnl", moduleName = module_name, scope = compiler.scopes.compiler, useMetadata = true})
    for k, v in pairs(match_macros) do
      compiler.scopes.global.macros[k] = v
    end
    package.preload[module_name] = nil
  end
  return mod
end
fennel = require("fennel")
if not pcall(require, "ffi") then
  package.loaded.ffi = {}
  package.loaded.ffi.typeof = function()
    local function _1_()
      return error("requires luajit")
    end
    return _1_
  end
  local ___band___ = load("return function(a, b) return a & b end")()
  local ___rshift___ = load("return function(a, b) return a >> b end")()
  _G.bit = {band = ___band___, rshift = ___rshift___}
else
end
if os.getenv("FNL") then
  table.insert((package.loaders or package.searchers), 1, fennel.searcher)
else
  table.insert((package.loaders or package.searchers), fennel.searcher)
end
local reader
package.preload["antifnl.reader"] = package.preload["antifnl.reader"] or function(...)
  local strsub = string.sub
  local function new_string_reader(src)
    local pos = 1
    local function reader()
      local chunk = strsub(src, pos, ((pos + 4096) - 32))
      pos = (pos + #chunk)
      return (((#chunk > 0) and chunk) or nil)
    end
    return reader
  end
  local function new_file_reader(filename)
    local f = nil
    if filename then
      f = assert(io.open(filename, "r"), ("cannot open file " .. filename))
    else
      f = io.stdin
    end
    local function reader()
      return f:read((4096 - 32))
    end
    return reader
  end
  return {file = new_file_reader, string = new_string_reader}
end
reader = require("antifnl.reader")
local compiler
package.preload["anticompiler"] = package.preload["anticompiler"] or function(...)
  local _local_5_ = require("fennel")
  local list = _local_5_["list"]
  local mangle = _local_5_["mangle"]
  local sym = _local_5_["sym"]
  local sym_3f = _local_5_["sym?"]
  local view = _local_5_["view"]
  local sequence = _local_5_["sequence"]
  local sym_char_3f = _local_5_["sym-char?"]
  local list_3f = _local_5_["list?"]
  local make_comment = _local_5_["comment"]
  local unpack = (table.unpack or _G.unpack)
  local function map(tbl, f, with_last_3f)
    local len = #tbl
    local out = {}
    for i, v in ipairs(tbl) do
      table.insert(out, f(v, (with_last_3f and (i == len))))
    end
    return out
  end
  local function mapcat(tbl, f)
    local out = {}
    for _, v in ipairs(tbl) do
      for _0, v0 in ipairs(f(v)) do
        table.insert(out, v0)
      end
    end
    return out
  end
  local function distinct(tbl)
    local seen = {}
    local tbl_21_auto = {}
    local i_22_auto = 0
    for _, x in ipairs(tbl) do
      local val_23_auto
      if not seen[x] then
        seen[x] = true
        val_23_auto = x
      else
        val_23_auto = nil
      end
      if (nil ~= val_23_auto) then
        i_22_auto = (i_22_auto + 1)
        tbl_21_auto[i_22_auto] = val_23_auto
      else
      end
    end
    return tbl_21_auto
  end
  local function symlike_3f(str)
    local and_8_ = str:find("^[a-zA-Z0-9%*]") and not str:find("%.")
    if and_8_ then
      local ok = true
      for char in str:gmatch(".") do
        if not ok then break end
        ok = sym_char_3f(char:byte())
      end
      and_8_ = ok
    end
    return and_8_
  end
  local function p(x)
    return print(view(x))
  end
  local function make_scope(parent)
    return setmetatable({}, {__index = parent})
  end
  local function add_to_scope(scope, kind, names, ast)
    for _, name in ipairs(names) do
      scope[tostring(name)] = {kind = kind, ast = ast}
    end
    return nil
  end
  local function _function(compile, scope, _9_)
    local params = _9_["params"]
    local body = _9_["body"]
    local params0
    local function _10_(...)
      return compile(scope, ...)
    end
    params0 = map(params, _10_)
    local subscope
    do
      local tmp_9_auto = make_scope(scope)
      add_to_scope(tmp_9_auto, "param", params0)
      subscope = tmp_9_auto
    end
    local function _11_(...)
      return compile(subscope, ...)
    end
    return list(sym("fn"), sequence(unpack(params0)), unpack(map(body, _11_, true)))
  end
  local function varize_local_21(scope, name)
    local _12_ = scope[name]
    if ((_G.type(_12_) == "table") and (nil ~= _12_.ast)) then
      local ast = _12_.ast
      ast[1] = "var"
      return nil
    else
      return nil
    end
  end
  local function declare_function(compile, scope, ast)
    if (ast.locald or ("MemberExpression" == ast.id.kind)) then
      local tmp_9_auto = _function(compile, scope, ast)
      table.insert(tmp_9_auto, 2, compile(scope, ast.id))
      return tmp_9_auto
    elseif not scope[ast.id.name] then
      local tmp_9_auto = _function(compile, scope, ast)
      table.insert(tmp_9_auto, 2, sym(("_G." .. ast.id.name)))
      return tmp_9_auto
    else
      varize_local_21(scope, ast.id.name)
      return list(sym("set"), compile(scope, ast.id), _function(compile, scope, ast))
    end
  end
  local function identifier(ast)
    if (ast.name:find("^[-_0-9]+$") and ast.name:find("[0-9]")) then
      return sym(("/" .. ast.name))
    else
      return sym(ast.name)
    end
  end
  local function local_declaration(compile, scope, _16_)
    local names = _16_["names"]
    local expressions = _16_["expressions"]
    local _17_ = #names
    if (((#expressions == _17_) and (_17_ == 1)) and ("FunctionExpression" == expressions[1].kind)) then
      add_to_scope(scope, "function", {names[1].name})
      local function _18_()
        local tmp_9_auto = expressions[1]
        tmp_9_auto["id"] = names[1]
        tmp_9_auto["locald"] = true
        return tmp_9_auto
      end
      return declare_function(compile, scope, _18_())
    else
      local local_sym = sym("local")
      local function _19_(_241)
        return _241.name
      end
      add_to_scope(scope, "local", map(names, _19_), local_sym)
      local _20_
      if (1 == #names) then
        _20_ = identifier(names[1])
      else
        local function _21_(...)
          return compile(scope, ...)
        end
        _20_ = list(unpack(map(names, _21_)))
      end
      local function _24_()
        if (1 == #expressions) then
          return compile(scope, expressions[1])
        elseif (0 == #expressions) then
          return sym("nil")
        else
          local function _23_(...)
            return compile(scope, ...)
          end
          return list(sym("values"), unpack(map(expressions, _23_)))
        end
      end
      return list(local_sym, _20_, _24_())
    end
  end
  local function vals(compile, scope, _26_)
    local arguments = _26_["arguments"]
    if (1 == #arguments) then
      return compile(scope, arguments[1])
    elseif (0 == #arguments) then
      return sym("nil")
    else
      local function _27_(...)
        return compile(scope, ...)
      end
      return list(sym("values"), unpack(map(arguments, _27_)))
    end
  end
  local function any_complex_expressions_3f(args, i)
    local a = args[i]
    if (nil == a) then
      return false
    elseif not ((a.kind == "Literal") or ((a.kind == "Identifier") and (a.name == mangle(a.name)))) then
      return true
    else
      return any_complex_expressions_3f(args, (i + 1))
    end
  end
  local function early_return_bindings(binding_names, bindings, i, arg, originals)
    if (("CallExpression" == originals[i].kind) and (i == #originals)) then
      local name = ("___antifnl_rtns_" .. i .. "___")
      table.insert(binding_names, string.format("(table.unpack or _G.unpack)(%s)", name))
      table.insert(bindings, sym(name))
      return table.insert(bindings, sequence(arg))
    else
      local name = ("___antifnl_rtn_" .. i .. "___")
      table.insert(binding_names, name)
      table.insert(bindings, sym(name))
      return table.insert(bindings, arg)
    end
  end
  local function early_return_complex(_compile, _scope, args, original_args)
    local binding_names = {}
    local bindings = {}
    for i, a in ipairs(args) do
      early_return_bindings(binding_names, bindings, i, a, original_args)
    end
    return list(sym("let"), bindings, list(sym("lua"), ("return " .. table.concat(binding_names, ", "))))
  end
  local function early_return(compile, scope, _31_)
    local arguments = _31_["arguments"]
    local args
    local function _32_(...)
      return compile(scope, ...)
    end
    args = map(arguments, _32_)
    if any_complex_expressions_3f(arguments, 1) then
      return early_return_complex(compile, scope, args, arguments)
    else
      return list(sym("lua"), ("return " .. table.concat(map(args, view), ", ")))
    end
  end
  local function flatten_associative(op_sym, form)
    local _34_ = list_3f(form)
    if ((_G.type(_34_) == "table") and (_34_[1] == op_sym) and true and true) then
      local _ = _34_[2]
      local _0 = _34_[3]
      local op_call = _34_
      table.remove(op_call, 1)
      return op_call
    else
      local _ = _34_
      return {form}
    end
  end
  local associative_operators
  do
    local tbl_16_auto = {}
    for _, op in pairs({"band", "bor", "bxor", "+", "*"}) do
      local k_17_auto, v_18_auto = op, op
      if ((k_17_auto ~= nil) and (v_18_auto ~= nil)) then
        tbl_16_auto[k_17_auto] = v_18_auto
      else
      end
    end
    associative_operators = tbl_16_auto
  end
  local function binary(compile, scope, _37_, _ast)
    local left = _37_["left"]
    local right = _37_["right"]
    local operator = _37_["operator"]
    local operators = {["=="] = "=", ["~="] = "not=", ["#"] = "length", ["~"] = "bxor", ["<<"] = "lshift", [">>"] = "rshift", ["&"] = "band", ["|"] = "bor"}
    local op_str = (operators[operator] or operator)
    local op_sym = sym(op_str)
    if associative_operators[op_str] then
      local function _38_(_241)
        return flatten_associative(op_sym, compile(scope, _241))
      end
      return list(op_sym, unpack(mapcat({left, right}, _38_)))
    else
      return list(op_sym, compile(scope, left), compile(scope, right))
    end
  end
  local function unary(compile, scope, _40_, _ast)
    local argument = _40_["argument"]
    local operator = _40_["operator"]
    local operators = {["~"] = "bnot"}
    return list(sym((operators[operator] or operator)), compile(scope, argument))
  end
  local function call(compile, scope, _41_)
    local arguments = _41_["arguments"]
    local callee = _41_["callee"]
    local function _42_(...)
      return compile(scope, ...)
    end
    return list(compile(scope, callee), unpack(map(arguments, _42_)))
  end
  local function send(compile, scope, _43_)
    local receiver = _43_["receiver"]
    local method = _43_["method"]
    local arguments = _43_["arguments"]
    local target = compile(scope, receiver)
    local args
    local function _44_(...)
      return compile(scope, ...)
    end
    args = map(arguments, _44_)
    if sym_3f(target) then
      return list(sym((tostring(target) .. ":" .. method.name)), unpack(args))
    else
      return list(sym(":"), target, method.name, unpack(args))
    end
  end
  local function any_computed_3f(ast)
    local or_46_ = ast.computed
    if not or_46_ then
      local and_47_ = ast.object and (ast.object.kind ~= "Identifier")
      if and_47_ then
        if (ast.object.kind == "MemberExpression") then
          and_47_ = any_computed_3f(ast.object)
        else
          and_47_ = true
        end
      end
      or_46_ = and_47_
    end
    return or_46_
  end
  local function member(compile, scope, ast)
    if any_computed_3f(ast) then
      local object = compile(scope, ast.object)
      local key
      if ast.computed then
        key = compile(scope, ast.property)
      else
        key = view(compile(scope, ast.property))
      end
      if (list_3f(object) and (sym(".") == object[1])) then
        table.insert(object, key)
        return object
      else
        return list(sym("."), object, key)
      end
    else
      return sym((tostring(compile(scope, ast.object)) .. "." .. ast.property.name))
    end
  end
  local function if_2a(compile, scope, _52_, tail_3f)
    local tests = _52_["tests"]
    local cons = _52_["cons"]
    local alternate = _52_["alternate"]
    for _, v in ipairs(cons) do
      if (0 == #v) then
        table.insert(v, sym("nil"))
      else
      end
    end
    local subscope = make_scope(scope)
    if (not alternate and (1 == #tests)) then
      local function _54_(...)
        return compile(subscope, ...)
      end
      return list(sym("when"), compile(scope, tests[1]), unpack(map(cons[1], _54_, tail_3f)))
    else
      local out = list(sym("if"))
      for i, test in ipairs(tests) do
        table.insert(out, compile(scope, test))
        local c = cons[i]
        local function _56_()
          if (1 == #c) then
            return compile(subscope, c[1], tail_3f)
          else
            local function _55_(...)
              return compile(subscope, ...)
            end
            return list(sym("do"), unpack(map(c, _55_, tail_3f)))
          end
        end
        table.insert(out, _56_())
      end
      if alternate then
        local function _58_()
          if (1 == #alternate) then
            return compile(subscope, alternate[1], tail_3f)
          else
            local function _57_(...)
              return compile(subscope, ...)
            end
            return list(sym("do"), unpack(map(alternate, _57_, tail_3f)))
          end
        end
        table.insert(out, _58_())
      else
      end
      return out
    end
  end
  local function concat(compile, scope, _61_)
    local terms = _61_["terms"]
    local function _62_(...)
      return compile(scope, ...)
    end
    return list(sym(".."), unpack(map(terms, _62_)))
  end
  local function each_2a(compile, scope, _63_)
    local namelist = _63_["namelist"]
    local explist = _63_["explist"]
    local body = _63_["body"]
    local subscope = make_scope(scope)
    local binding
    local function _64_(...)
      return compile(scope, ...)
    end
    binding = map(namelist.names, _64_)
    local iter
    if (1 == #explist) then
      iter = compile(scope, explist[1])
    else
      local tbl_19_auto = list(sym("values"))
      for _, exp in ipairs(explist) do
        local val_20_auto = compile(scope, exp)
        table.insert(tbl_19_auto, val_20_auto)
      end
      iter = tbl_19_auto
    end
    add_to_scope(subscope, "param", binding)
    table.insert(binding, iter)
    local function _66_(...)
      return compile(subscope, ...)
    end
    return list(sym("each"), binding, unpack(map(body, _66_)))
  end
  local function tset_2a(compile, scope, left, right_out, ast)
    if (1 < #left) then
      error(("Unsupported form; tset cannot set multiple values on line " .. (ast.line or "?")))
    else
    end
    local _68_
    if (not left[1].computed and (left[1].property.kind == "Identifier")) then
      _68_ = left[1].property.name
    else
      _68_ = compile(scope, left[1].property)
    end
    return list(sym("tset"), compile(scope, left[1].object), _68_, right_out)
  end
  local function setter_for(scope, names)
    local kinds
    local function _70_(_241)
      local _71_ = (scope[_241] or _241)
      if ((_G.type(_71_) == "table") and (nil ~= _71_.kind)) then
        local kind = _71_.kind
        return kind
      else
        local _ = _71_
        return "global"
      end
    end
    kinds = map(names, _70_)
    local kinds0
    do
      local tmp_9_auto = distinct(kinds)
      table.sort(tmp_9_auto)
      kinds0 = tmp_9_auto
    end
    if ((_G.type(kinds0) == "table") and (kinds0[1] == "MemberExpression") and (kinds0[2] == "local")) then
      local function _73_(...)
        return varize_local_21(scope, ...)
      end
      map(names, _73_)
      return "set"
    else
      local and_74_ = true
      if and_74_ then
        local _ = kinds0
        and_74_ = (1 < #kinds0)
      end
      if and_74_ then
        local _ = kinds0
        return "set-forcibly!"
      elseif ((_G.type(kinds0) == "table") and (kinds0[1] == "local")) then
        local function _76_(...)
          return varize_local_21(scope, ...)
        end
        map(names, _76_)
        return "set"
      elseif ((_G.type(kinds0) == "table") and (kinds0[1] == "MemberExpression")) then
        return "set"
      elseif ((_G.type(kinds0) == "table") and (kinds0[1] == "function")) then
        return "set-forcibly!"
      elseif ((_G.type(kinds0) == "table") and (kinds0[1] == "param")) then
        return "set-forcibly!"
      else
        local _ = kinds0
        return "global"
      end
    end
  end
  local function computed__3emultisym_21(target)
    if target.computed then
      do
        local _78_ = target.property
        if ((_G.type(_78_) == "table") and (_78_.kind == "Literal") and (nil ~= _78_.value)) then
          local value = _78_.value
          for char in value:gmatch(".") do
            assert(sym_char_3f(char), ("Illegal assignment: " .. value))
          end
        elseif ((_G.type(_78_) == "table") and (nil ~= _78_.kind)) then
          local kind = _78_.kind
          error(("Cannot assign to " .. kind))
        else
        end
      end
      target.computed = false
      target.property = {Kind = "Identifier", name = target.property.value}
      return nil
    else
      return nil
    end
  end
  local function member_function_declaration(member_expression, function_ast)
    function_ast["kind"] = "FunctionDeclaration"
    function_ast["id"] = member_expression
    return function_ast
  end
  local function decompute_assignment_21(left)
    for _, x in ipairs(left) do
      if (x.property and ("string" == type(x.property.value)) and (x.property.kind == "Literal") and symlike_3f(x.property.value)) then
        x.computed = false
        x.property = {kind = "Identifier", name = x.property.value}
      else
      end
    end
    return nil
  end
  local function assignment(compile, scope, ast)
    local left = ast["left"]
    local right = ast["right"]
    local right_out
    if (1 == #right) then
      right_out = compile(scope, right[1])
    elseif (0 == #right) then
      right_out = sym("nil")
    else
      local function _82_(...)
        return compile(scope, ...)
      end
      right_out = list(sym("values"), unpack(map(right, _82_)))
    end
    decompute_assignment_21(left)
    if any_computed_3f(left[1]) then
      return tset_2a(compile, scope, left, right_out, ast)
    elseif (("MemberExpression" == left[1].kind) and ("FunctionExpression" == right[1].kind)) then
      return declare_function(compile, scope, member_function_declaration(left[1], right[1]))
    else
      local setter
      local function _84_(_241)
        return (_241.name or _241)
      end
      setter = setter_for(scope, map(left, _84_))
      map(left, computed__3emultisym_21)
      local _85_
      if (1 == #left) then
        _85_ = compile(scope, left[1])
      else
        local function _86_(...)
          return compile(scope, ...)
        end
        _85_ = list(unpack(map(left, _86_)))
      end
      return list(sym(setter), _85_, right_out)
    end
  end
  local function while_2a(compile, scope, _89_)
    local test = _89_["test"]
    local body = _89_["body"]
    local subscope = make_scope(scope)
    local function _90_(...)
      return compile(subscope, ...)
    end
    return list(sym("while"), compile(scope, test), unpack(map(body, _90_)))
  end
  local function repeat_2a(compile, scope, _91_)
    local test = _91_["test"]
    local body = _91_["body"]
    local function _93_()
      local tmp_9_auto
      local function _92_(...)
        return compile(scope, ...)
      end
      tmp_9_auto = map(body, _92_)
      table.insert(tmp_9_auto, list(sym("when"), compile(scope, test), list(sym("lua"), "break")))
      return tmp_9_auto
    end
    return list(sym("while"), true, unpack(_93_()))
  end
  local function for_2a(compile, scope, _94_)
    local init = _94_["init"]
    local last = _94_["last"]
    local step = _94_["step"]
    local body = _94_["body"]
    local i = compile(scope, init.id)
    local subscope = make_scope(scope)
    add_to_scope(subscope, "param", {i})
    local function _96_()
      local _95_ = compile(scope, step)
      if (_95_ == 1) then
        return nil
      elseif (nil ~= _95_) then
        local step_compiled = _95_
        return step_compiled
      else
        return nil
      end
    end
    local function _98_(...)
      return compile(subscope, ...)
    end
    return list(sym("for"), {i, compile(scope, init.value), compile(scope, last), _96_()}, unpack(map(body, _98_)))
  end
  local function potential_multival_3f(_99_)
    local kind = _99_["kind"]
    return (("Vararg" == kind) or ("CallExpression" == kind))
  end
  local function table_2a(compile, scope, _100_)
    local keyvals = _100_["keyvals"]
    local out
    if next(keyvals) then
      out = sequence()
    else
      out = {}
    end
    for i, _102_ in ipairs(keyvals) do
      local v = _102_[1]
      local k = _102_[2]
      assert(not ((nil == k) and not getmetatable(out) and (nil == keyvals[(i + 1)]) and potential_multival_3f(v)), ("Mixed tables can't end in potential multivals: " .. view(keyvals)))
      if k then
        out[compile(scope, k)] = compile(scope, v)
        setmetatable(out, nil)
      else
        table.insert(out, compile(scope, v))
      end
    end
    return out
  end
  local function do_2a(compile, scope, _104_, tail_3f)
    local body = _104_["body"]
    local subscope = make_scope(scope)
    local function _105_(...)
      return compile(subscope, ...)
    end
    return list(sym("do"), unpack(map(body, _105_, tail_3f)))
  end
  local function _break(_compile, _scope, _ast)
    return list(sym("lua"), "break")
  end
  local function comment_2a(ast)
    return make_comment((";; " .. ast.contents))
  end
  local function unsupported(ast)
    if os.getenv("DEBUG") then
      p(ast)
    else
    end
    return error((ast.kind .. " is not supported on line " .. (ast.line or "?")))
  end
  local function compile(scope, ast, tail_3f)
    if os.getenv("DEBUG") then
      print(ast.kind, " ", (ast.line or "?"))
    else
    end
    local _108_ = ast.kind
    if (_108_ == "Chunk") then
      local scope0 = make_scope(nil)
      local function _109_(...)
        return compile(scope0, ...)
      end
      return map(ast.body, _109_, true)
    elseif (_108_ == "LocalDeclaration") then
      return local_declaration(compile, scope, ast)
    elseif (_108_ == "FunctionDeclaration") then
      return declare_function(compile, scope, ast)
    elseif (_108_ == "FunctionExpression") then
      return _function(compile, scope, ast)
    elseif (_108_ == "BinaryExpression") then
      return binary(compile, scope, ast)
    elseif (_108_ == "ConcatenateExpression") then
      return concat(compile, scope, ast)
    elseif (_108_ == "CallExpression") then
      return call(compile, scope, ast)
    elseif (_108_ == "LogicalExpression") then
      return binary(compile, scope, ast)
    elseif (_108_ == "AssignmentExpression") then
      return assignment(compile, scope, ast)
    elseif (_108_ == "SendExpression") then
      return send(compile, scope, ast)
    elseif (_108_ == "MemberExpression") then
      return member(compile, scope, ast)
    elseif (_108_ == "UnaryExpression") then
      return unary(compile, scope, ast)
    elseif (_108_ == "ExpressionValue") then
      return compile(scope, ast.value)
    elseif (_108_ == "ExpressionStatement") then
      return compile(scope, ast.expression)
    elseif (_108_ == "IfStatement") then
      return if_2a(compile, scope, ast, tail_3f)
    elseif (_108_ == "DoStatement") then
      return do_2a(compile, scope, ast, tail_3f)
    elseif (_108_ == "ForInStatement") then
      return each_2a(compile, scope, ast)
    elseif (_108_ == "WhileStatement") then
      return while_2a(compile, scope, ast)
    elseif (_108_ == "RepeatStatement") then
      return repeat_2a(compile, scope, ast)
    elseif (_108_ == "ForStatement") then
      return for_2a(compile, scope, ast)
    elseif (_108_ == "BreakStatement") then
      return _break(compile, scope, ast)
    elseif (_108_ == "ReturnStatement") then
      if tail_3f then
        return vals(compile, scope, ast)
      else
        return early_return(compile, scope, ast)
      end
    elseif (_108_ == "Identifier") then
      return identifier(ast)
    elseif (_108_ == "Table") then
      return table_2a(compile, scope, ast)
    elseif (_108_ == "Literal") then
      if (nil == ast.value) then
        return sym("nil")
      else
        return ast.value
      end
    elseif (_108_ == "Comment") then
      return comment_2a(ast)
    elseif (_108_ == "Vararg") then
      return sym("...")
    elseif (_108_ == nil) then
      return sym("nil")
    else
      local _ = _108_
      return unsupported(ast)
    end
  end
  return compile
end
compiler = require("anticompiler")
local letter
package.preload["letter"] = package.preload["letter"] or function(...)
  local fennel = require("fennel")
  local function walk_tree(root, f, custom_iterator)
    local function walk(iterfn, parent, idx, node)
      if f(idx, node, parent) then
        for k, v in iterfn(node) do
          walk(iterfn, node, k, v)
        end
        return nil
      else
        return nil
      end
    end
    walk((custom_iterator or pairs), nil, nil, root)
    return root
  end
  local function local_3f(node)
    return (("table" == type(node)) and ("local" == tostring(node[1])))
  end
  local function locals_to_bindings(node, bindings)
    local maybe_local = node[3]
    if (local_3f(maybe_local) or (fennel["comment?"](maybe_local) and local_3f(node[4]))) then
      table.remove(node, 3)
      if fennel["comment?"](maybe_local) then
        table.insert(bindings, maybe_local)
      else
        table.insert(bindings, maybe_local[2])
        table.insert(bindings, maybe_local[3])
      end
      return locals_to_bindings(node, bindings)
    else
      return nil
    end
  end
  local function move_body(fn_node, do_node, do_loc)
    for i = #fn_node, do_loc, -1 do
      table.insert(do_node, 2, table.remove(fn_node, i))
    end
    return nil
  end
  local function transform_do(node)
    local bindings = {}
    table.insert(node, 2, bindings)
    node[1] = fennel.sym("let")
    locals_to_bindings(node, bindings)
    if (2 == #node) then
      return table.insert(node, fennel.sym("nil"))
    else
      return nil
    end
  end
  local function body_start(node)
    local has_name_3f = fennel["sym?"](node[2])
    if has_name_3f then
      return 4
    else
      return 3
    end
  end
  local function transform_fn(node)
    local do_loc = body_start(node)
    local do_node = fennel.list(fennel.sym("do"))
    move_body(node, do_node, do_loc)
    return table.insert(node, do_loc, do_node)
  end
  local function only_before_local_3f(node, i, pred)
    if local_3f(node[i]) then
      return true
    elseif pred(node[i]) then
      return only_before_local_3f(node, (i + 1), pred)
    else
      return false
    end
  end
  local function do_local_node_3f(node)
    return (("table" == type(node)) and ("do" == tostring(node[1])) and only_before_local_3f(node, 2, fennel["comment?"]))
  end
  local function fn_local_node_3f(node)
    return (("table" == type(node)) and ("fn" == tostring(node[1])) and only_before_local_3f(node, body_start(node), fennel["comment?"]))
  end
  local function letter(_idx, node)
    if fn_local_node_3f(node) then
      transform_fn(node)
    else
    end
    if do_local_node_3f(node) then
      transform_do(node)
    else
    end
    return ("table" == type(node))
  end
  local function reverse_ipairs(t)
    local function iter(t0, i)
      local i0 = (i - 1)
      local v = t0[i0]
      if (v ~= nil) then
        return i0, v
      else
        return nil
      end
    end
    return iter, t, (#t + 1)
  end
  local function _122_(ast)
    return walk_tree(ast, letter, reverse_ipairs)
  end
  return {compile = _122_}
end
letter = require("letter")
local fnlfmt
package.preload["fnlfmt"] = package.preload["fnlfmt"] or function(...)
  local fennel = require("fennel")
  local unpack = (table.unpack or _G.unpack)
  local syntax = fennel.syntax()
  local function line(ast)
    return fennel["ast-source"](ast).line
  end
  local function last_line_length(line0)
    return #line0:match("[^\n]*$")
  end
  local function any_3f(tbl, pred)
    local found = false
    for _, v in pairs(tbl) do
      if found then break end
      found = not not pred(v)
    end
    return found
  end
  local function strip_comments(t)
    local tbl_21_auto = {}
    local i_22_auto = 0
    for _, x in ipairs(t) do
      local val_23_auto
      if not fennel["comment?"](x) then
        val_23_auto = x
      else
        val_23_auto = nil
      end
      if (nil ~= val_23_auto) then
        i_22_auto = (i_22_auto + 1)
        tbl_21_auto[i_22_auto] = val_23_auto
      else
      end
    end
    return tbl_21_auto
  end
  local function view_fn_args(t, view, inspector, indent, start_indent, out)
    if fennel["sym?"](t[2]) then
      local third = view(t[3], inspector, (indent + 1))
      table.insert(out, " ")
      table.insert(out, third)
      if ("string" == type(t[4])) then
        table.insert(out, ("\n" .. string.rep(" ", start_indent)))
        inspector["escape-newlines?"] = false
        table.insert(out, view(t[4], inspector, start_indent))
        inspector["escape-newlines?"] = true
        return 5
      else
        return 4
      end
    else
      return 3
    end
  end
  local function first_thing_in_line_3f(out)
    local last = (out[#out] or "")
    return not last:match("[^\n]*$"):match("[^ ]")
  end
  local function break_pair_3f(let_3f, count, viewed, next_ast, next_next, indent, iterator_3f)
    if let_3f then
      return ((1 == math.fmod(count, 2)) and not (fennel["comment?"](next_ast) and ((indent + 1 + last_line_length(viewed) + 1 + #tostring(next_ast)) <= 80)))
    else
      return ((("string" == type(next_ast)) or tostring(next_ast):find("^&")) and (80 < (indent + 1 + last_line_length(viewed) + 1 + #tostring(next_ast) + #fennel.view(next_next))))
    end
  end
  local function binding_comment(c, indent, out, start_indent)
    if ((80 < (indent + #tostring(c))) and out[#out]:match("^[^%s]")) then
      table.insert(out, ("\n" .. string.rep(" ", start_indent)))
    else
    end
    if (not first_thing_in_line_3f(out) and (#out ~= 1)) then
      table.insert(out, " ")
    else
    end
    table.insert(out, tostring(c))
    return table.insert(out, ("\n" .. string.rep(" ", start_indent)))
  end
  local function view_binding(bindings, view, inspector, start_indent, pair_wise_3f, open, close)
    local out = {open}
    local indent, offset, non_comment_count = start_indent, 0, 1
    for i = 1, #bindings do
      while fennel["comment?"](bindings[(i + offset)]) do
        binding_comment(bindings[(i + offset)], indent, out, start_indent)
        indent, offset = start_indent, (offset + 1)
      end
      local i0 = (offset + i)
      local viewed = view(bindings[i0], inspector, indent)
      if (i0 <= #bindings) then
        table.insert(out, viewed)
        non_comment_count = (non_comment_count + 1)
        if (i0 < #bindings) then
          if break_pair_3f(pair_wise_3f, non_comment_count, viewed, bindings[(i0 + 1)], bindings[(i0 + 2)], indent) then
            table.insert(out, ("\n" .. string.rep(" ", start_indent)))
            indent = start_indent
          else
            indent = (indent + 1 + last_line_length(viewed))
            table.insert(out, " ")
          end
        else
        end
      else
      end
    end
    table.insert(out, close)
    return table.concat(out)
  end
  local fn_forms = {fn = true, lambda = true, ["\206\187"] = true, macro = true}
  local force_initial_newline = {["do"] = true, ["eval-compiler"] = true}
  local function view_init_body(t, view, inspector, start_indent, out, callee)
    if force_initial_newline[callee] then
      table.insert(out, ("\n" .. string.rep(" ", start_indent)))
    elseif (nil ~= t[2]) then
      table.insert(out, " ")
    else
    end
    local indent
    if force_initial_newline[callee] then
      indent = start_indent
    else
      indent = (start_indent + #callee)
    end
    local second
    local _136_
    do
      local t_135_ = syntax
      if (nil ~= t_135_) then
        t_135_ = t_135_[callee]
      else
      end
      if (nil ~= t_135_) then
        t_135_ = t_135_["binding-form?"]
      else
      end
      _136_ = t_135_
    end
    if (_136_ and ("unquote" ~= tostring(t[2][1]))) then
      second = view_binding(t[2], view, inspector, (indent + 1), ("let" == callee), "[", "]")
    else
      second = view(t[2], inspector, indent)
    end
    local indent2 = (indent + #second:match("[^\n]*$"))
    if (nil ~= t[2]) then
      table.insert(out, second)
    else
    end
    if fn_forms[callee] then
      return view_fn_args(t, view, inspector, indent2, start_indent, out, callee)
    else
      return 3
    end
  end
  local function match_3f(callee)
    return ({match = true, case = true, ["match-try"] = true, ["case-try"] = true})[callee]
  end
  local function match_same_line_3f(callee, i, out, viewed, t)
    return (match_3f(callee) and (0 == math.fmod(i, 2)) and not any_3f(t, fennel["comment?"]) and (((string.find(viewed, "\n") or #viewed:match("[^\n]*$")) + 1 + last_line_length(out[#out])) <= 80))
  end
  local function trailing_comment_3f(viewed, body_indent)
    return (viewed:match("^; ") and (body_indent <= 80))
  end
  local one_element_per_line_forms = {["->"] = true, ["->>"] = true, ["-?>"] = true, ["-?>>"] = true, ["if"] = true}
  local function space_out_fns_3f(prev, viewed, start_index, i)
    return (not (start_index == i) and (prev:match("^ *%(fn [^%[]") or viewed:match("^ *%(fn [^%[]")))
  end
  local function originally_same_lines_3f(t, n1, n2)
    local first = t[n1]
    local second = t[n2]
    local and_142_ = ("table" == type(second))
    if and_142_ then
      local _143_ = line(first)
      and_142_ = ((line(t) == _143_) and (_143_ == line(second)))
    end
    return and_142_
  end
  local function scalar_3f(form)
    return (fennel["sym?"](form) or fennel["comment?"](form) or fennel["varg?"](form) or ("table" ~= type(form)))
  end
  local function depth(form, base)
    if scalar_3f(form) then
      return base
    else
      local d = (base + 1)
      for _, elem in pairs(form) do
        d = math.max(d, depth(elem, (base + 1)))
      end
      return d
    end
  end
  local function preserve_same_line_3f(t, i, indent, out, viewed, depth0)
    return (((indent + #table.concat(out) + #viewed) <= 80) and (depth0 <= 3) and not fennel["comment?"](t[(i - 1)]) and ((("table" ~= type(t[i])) and (#t <= 4)) or (originally_same_lines_3f(t, 1, i) and not viewed:find("\n"))))
  end
  local function view_body(t, view, inspector, start_indent, out, callee)
    local start_index = view_init_body(t, view, inspector, start_indent, out, callee)
    local indent
    if one_element_per_line_forms[callee] then
      indent = (start_indent + #callee)
    else
      indent = start_indent
    end
    for i = (start_index or (#t + 1)), #t do
      local viewed = view(t[i], inspector, indent)
      local body_indent = (indent + 1 + last_line_length(out[#out]))
      if (match_same_line_3f(callee, i, out, viewed, t) or preserve_same_line_3f(t, i, indent, out, viewed, depth(t, 0)) or trailing_comment_3f(viewed, body_indent)) then
        table.insert(out, " ")
        table.insert(out, view(t[i], inspector, body_indent))
      else
        if space_out_fns_3f(out[#out], viewed, start_index, i) then
          table.insert(out, "\n")
        else
        end
        table.insert(out, ("\n" .. string.rep(" ", indent)))
        table.insert(out, viewed)
      end
    end
    return nil
  end
  local function line_exceeded_3f(inspector, indent, viewed)
    return (inspector["line-length"] < (indent + last_line_length(viewed)))
  end
  local function view_with_newline(view, inspector, out, t, i, start_indent)
    if (" " == out[#out]) then
      table.remove(out)
    else
    end
    table.insert(out, ("\n" .. string.rep(" ", start_indent)))
    local viewed = view(t[i], inspector, start_indent)
    table.insert(out, viewed)
    return (start_indent + #viewed:match("[^\n]*$"))
  end
  local function view_call(t, view, inspector, start_indent, out)
    local indent = start_indent
    for i = 2, #t do
      table.insert(out, " ")
      indent = (indent + 1)
      local viewed = view(t[i], inspector, (indent - 1))
      if (fennel["comment?"](t[(i - 1)]) or (line_exceeded_3f(inspector, indent, viewed) and (2 ~= i))) then
        indent = view_with_newline(view, inspector, out, t, i, start_indent)
      else
        table.insert(out, viewed)
        indent = (indent + #viewed:match("[^\n]*$"))
      end
    end
    return nil
  end
  local function view_pairwise_if(t, view, inspector, indent, out)
    return table.insert(out, (" " .. view_binding({select(2, unpack(t))}, view, inspector, indent, true, "", "")))
  end
  local function if_pair(view, a, b, c)
    local _150_
    if fennel["comment?"](c) then
      _150_ = (" " .. view(c))
    else
      _150_ = ""
    end
    return (view(a) .. " " .. view(b) .. _150_)
  end
  local function pairwise_if_3f(t, indent, i, view)
    if (#strip_comments(t) < 5) then
      return false
    elseif ("if" ~= tostring(t[1])) then
      return false
    elseif not t[i] then
      return true
    elseif (80 < (indent + 1 + #if_pair(view, select(i, unpack(t))))) then
      return false
    else
      local _152_
      if fennel.comment(t[(i + 2)]) then
        _152_ = (i + 3)
      else
        _152_ = (i + 2)
      end
      return pairwise_if_3f(t, indent, _152_, view)
    end
  end
  local function view_maybe_body(t, view, inspector, indent, start_indent, out, callee)
    if pairwise_if_3f(t, indent, 2, view) then
      return view_pairwise_if(t, view, inspector, indent, out)
    elseif not originally_same_lines_3f(t, 2, 3) then
      return view_body(t, view, inspector, (start_indent + 2), out, callee)
    else
      return view_call(t, view, inspector, indent, out, callee)
    end
  end
  local function newline_if_ends_in_comment(out, indent)
    if out[#out]:match("^ *;[^\n]*$") then
      return table.insert(out, ("\n" .. string.rep(" ", indent)))
    else
      return nil
    end
  end
  local sugars = {hashfn = "#", quote = "`", unquote = ","}
  local function sweeten(t, view, inspector, indent)
    return (sugars[tostring(t[1])] .. view(t[2], inspector, (indent + 1)))
  end
  local maybe_body = {["->"] = true, ["->>"] = true, ["-?>"] = true, ["-?>>"] = true, doto = true, ["if"] = true}
  local renames = {["#"] = "length", ["~="] = "not="}
  local function body_form_3f(callee)
    local _158_
    do
      local t_157_ = syntax
      if (nil ~= t_157_) then
        t_157_ = t_157_[callee]
      else
      end
      if (nil ~= t_157_) then
        t_157_ = t_157_["body-form?"]
      else
      end
      _158_ = t_157_
    end
    return (_158_ or callee:find("%.with-") or callee:find("^with-") or callee:find("%.def") or callee:find("^def"))
  end
  local function view_list(t, view, inspector, start_indent)
    if sugars[tostring(t[1])] then
      return sweeten(t, view, inspector, start_indent)
    else
      local callee = view(t[1], inspector, (start_indent + 1))
      local callee0 = (renames[callee] or callee)
      local out = {"(", callee0}
      local indent
      if body_form_3f(callee0) then
        indent = (start_indent + 2)
      else
        indent = (start_indent + #callee0 + 2)
      end
      if body_form_3f(callee0) then
        view_body(t, view, inspector, indent, out, callee0)
      elseif maybe_body[callee0] then
        view_maybe_body(t, view, inspector, indent, start_indent, out, callee0)
      else
        view_call(t, view, inspector, indent, out)
      end
      newline_if_ends_in_comment(out, indent)
      table.insert(out, ")")
      return table.concat(out)
    end
  end
  local slength
  local _164_
  do
    local tmp_3_auto = rawget(_G, "utf8")
    if (nil ~= tmp_3_auto) then
      _164_ = tmp_3_auto.len
    else
      _164_ = nil
    end
  end
  local or_166_ = _164_
  if not or_166_ then
    local function _167_(_241)
      return #_241
    end
    or_166_ = _167_
  end
  slength = or_166_
  local function maybe_attach_comment(x, indent, cs)
    if (cs and (0 < #cs)) then
      local _168_
      do
        local tbl_21_auto = {}
        local i_22_auto = 0
        for _, c in ipairs(cs) do
          local val_23_auto = tostring(c)
          if (nil ~= val_23_auto) then
            i_22_auto = (i_22_auto + 1)
            tbl_21_auto[i_22_auto] = val_23_auto
          else
          end
        end
        _168_ = tbl_21_auto
      end
      return (table.concat(_168_, ("\n" .. string.rep(" ", indent))) .. ("\n" .. string.rep(" ", indent)) .. x)
    else
      return x
    end
  end
  local function shorthand_pair_3f(k, v)
    return (("string" == type(k)) and fennel["sym?"](v) and (k == tostring(v)))
  end
  local function view_pair(t, view, inspector, indent, mt, key)
    local val = t[key]
    local k
    if shorthand_pair_3f(key, val) then
      k = ":"
    else
      k = view(key, inspector, (indent + 1), true)
    end
    local v = view(val, inspector, (indent + slength(k) + 1))
    local function _173_()
      local t_172_ = mt
      if (nil ~= t_172_) then
        t_172_ = t_172_.comments
      else
      end
      if (nil ~= t_172_) then
        t_172_ = t_172_.keys
      else
      end
      if (nil ~= t_172_) then
        t_172_ = t_172_[key]
      else
      end
      return t_172_
    end
    local function _178_()
      local t_177_ = mt
      if (nil ~= t_177_) then
        t_177_ = t_177_.comments
      else
      end
      if (nil ~= t_177_) then
        t_177_ = t_177_.values
      else
      end
      if (nil ~= t_177_) then
        t_177_ = t_177_[val]
      else
      end
      return t_177_
    end
    return (maybe_attach_comment(k, indent, _173_()) .. " " .. maybe_attach_comment(v, indent, _178_()))
  end
  local function view_multiline_kv(pair_strs, indent, last_comments)
    if (last_comments and (0 < #last_comments)) then
      for _, c in ipairs(last_comments) do
        table.insert(pair_strs, tostring(c))
      end
      table.insert(pair_strs, "}")
      return ("{" .. table.concat(pair_strs, ("\n" .. string.rep(" ", indent))))
    else
      return ("{" .. table.concat(pair_strs, ("\n" .. string.rep(" ", indent))) .. "}")
    end
  end
  local function sorter(a, b)
    if (type(a) == type(b)) then
      return (a < b)
    else
      return (tostring(a) < tostring(b))
    end
  end
  local function view_kv(t, view, inspector, indent)
    local indent0 = (indent + 1)
    local mt = getmetatable(t)
    local keys
    local or_184_ = mt.keys
    if not or_184_ then
      local tmp_9_auto
      do
        local tbl_21_auto = {}
        local i_22_auto = 0
        for k in pairs(t) do
          local val_23_auto = k
          if (nil ~= val_23_auto) then
            i_22_auto = (i_22_auto + 1)
            tbl_21_auto[i_22_auto] = val_23_auto
          else
          end
        end
        tmp_9_auto = tbl_21_auto
      end
      table.sort(tmp_9_auto, sorter)
      or_184_ = tmp_9_auto
    end
    keys = or_184_
    local pair_strs
    do
      local tbl_21_auto = {}
      local i_22_auto = 0
      for _, k in ipairs(keys) do
        local val_23_auto = view_pair(t, view, inspector, indent0, mt, k)
        if (nil ~= val_23_auto) then
          i_22_auto = (i_22_auto + 1)
          tbl_21_auto[i_22_auto] = val_23_auto
        else
        end
      end
      pair_strs = tbl_21_auto
    end
    local oneline = ("{" .. table.concat(pair_strs, " ") .. "}")
    local or_188_ = oneline:match("\n")
    if not or_188_ then
      local t_189_ = mt
      if (nil ~= t_189_) then
        t_189_ = t_189_.comments
      else
      end
      if (nil ~= t_189_) then
        t_189_ = t_189_.last
      else
      end
      if (nil ~= t_189_) then
        t_189_ = t_189_[1]
      else
      end
      or_188_ = t_189_
    end
    if (or_188_ or ((indent0 + #oneline) > inspector["line-length"])) then
      local function _194_()
        local t_193_ = mt
        if (nil ~= t_193_) then
          t_193_ = t_193_.comments
        else
        end
        if (nil ~= t_193_) then
          t_193_ = t_193_.last
        else
        end
        return t_193_
      end
      return view_multiline_kv(pair_strs, indent0, _194_())
    else
      return oneline
    end
  end
  local function walk_tree(root, f, custom_iterator)
    local function walk(iterfn, parent, idx, node)
      if f(idx, node, parent) then
        for k, v in iterfn(node) do
          walk(iterfn, node, k, v)
        end
        return nil
      else
        return nil
      end
    end
    walk((custom_iterator or pairs), nil, nil, root)
    return root
  end
  local function set_fennelview_metamethod(_idx, form)
    if not scalar_3f(form) then
      if (not fennel["list?"](form) and not fennel["sequence?"](form)) then
        local _199_ = getmetatable(form)
        if (nil ~= _199_) then
          local mt = _199_
          mt["__fennelview"] = view_kv
        else
          local _ = _199_
          setmetatable(form, {__fennelview = view_kv})
        end
      else
      end
      return true
    else
      return nil
    end
  end
  local function prefer_colon_3f(s)
    return (s:find("^[-%w?^_!$%&*+./|<=>]+$") and not s:find("^[-?^_!$%&*+./@|<=>%\\]+$"))
  end
  local function fnlfmt(ast)
    local _let_203_ = getmetatable(fennel.list())
    local list_mt = _let_203_
    local __fennelview = _let_203_["__fennelview"]
    local _
    list_mt.__fennelview = view_list
    _ = nil
    local _0 = walk_tree(ast, set_fennelview_metamethod)
    local ok_3f, val = pcall(fennel.view, ast, {["empty-as-sequence?"] = true, ["escape-newlines?"] = true, ["prefer-colon?"] = prefer_colon_3f})
    list_mt.__fennelview = __fennelview
    assert(ok_3f, val)
    return val
  end
  local function space_out_forms_3f(prev_ast, ast)
    return not (line(prev_ast) and line(ast) and (1 == (line(ast) - line(prev_ast))))
  end
  local function abort(filename)
    io.stderr:write(string.format("File not found: %s\n", filename))
    return os.exit(1)
  end
  local function format_file(filename, _204_)
    local no_comments = _204_["no-comments"]
    local f
    if (filename == "-") then
      f = io.stdin
    else
      local _ = filename
      f = (io.open(filename, "r") or abort(filename))
    end
    local contents = f:read("*all")
    local parser = fennel.parser(fennel.stringStream(contents), filename, {comments = not no_comments})
    local out = {}
    f:close()
    local skip_next_3f, prev_ast = false
    for ok_3f, ast in parser do
      assert(ok_3f, ast)
      if (skip_next_3f and ast.bytestart and ast.byteend) then
        table.insert(out, contents:sub(ast.bytestart, ast.byteend))
        skip_next_3f = false
      elseif (fennel.comment(";; fnlfmt: skip") == ast) then
        skip_next_3f = true
        table.insert(out, "")
        table.insert(out, tostring(ast))
      else
        if (prev_ast and space_out_forms_3f(prev_ast, ast)) then
          table.insert(out, "")
        else
        end
        table.insert(out, fnlfmt(ast))
        skip_next_3f = false
      end
      prev_ast = ast
    end
    table.insert(out, "")
    return table.concat(out, "\n")
  end
  return {fnlfmt = fnlfmt, ["format-file"] = format_file, version = "0.3.1"}
end
fnlfmt = require("fnlfmt")
local reserved = {}
for name, data in pairs(fennel.syntax()) do
  if (data["special?"] or data["macro?"]) then
    reserved[name] = true
  else
  end
end
local function uncamelize(name)
  local function splicedash(pre, cap)
    return (pre .. "-" .. cap:lower())
  end
  return name:gsub("([a-z0-9])([A-Z])", splicedash)
end
local function mangle(name, field)
  if not field then
    name = uncamelize(name):gsub("([a-z0-9])_", "%1-")
    name = ((reserved[name] and ("___" .. name .. "___")) or name)
  else
  end
  return name
end
package.preload["antifnl.lexer"] = package.preload["antifnl.lexer"] or function(...)
  local ffi = require("ffi")
  local ___band___ = bit.band
  local strsub, strbyte, strchar = string.sub, string.byte, string.char
  local ASCII_0, ASCII_9 = 48, 57
  local ASCII_a, ASCII_f, ASCII_z = 97, 102, 122
  local ASCII_A, ASCII_Z = 65, 90
  local END_OF_STREAM = ( - 1)
  local Reserved_keyword = {["and"] = 1, ["break"] = 2, ["do"] = 3, ["else"] = 4, ["elseif"] = 5, ["end"] = 6, ["false"] = 7, ["for"] = 8, ["function"] = 9, ["goto"] = 10, ["if"] = 11, ["in"] = 12, ["local"] = 13, ["nil"] = 14, ["not"] = 15, ["or"] = 16, ["repeat"] = 17, ["return"] = 18, ["then"] = 19, ["true"] = 20, ["until"] = 21, ["while"] = 22}
  local uint64, int64 = ffi.typeof("uint64_t"), ffi.typeof("int64_t")
  local complex = ffi.typeof("complex")
  local Token_symbol = {TK_concat = "..", TK_eof = "<eof>", TK_eq = "==", TK_ge = ">=", TK_le = "<=", TK_ne = "~=", TK_shl = "<<", TK_shr = ">>"}
  local function token2str(tok)
    if string.match(tok, "^TK_") then
      return (Token_symbol[tok] or string.sub(tok, 4))
    else
      return tok
    end
  end
  local function error_lex(chunkname, tok, line, em, ...)
    local emfmt = string.format(em, ...)
    local msg = string.format("%s:%d: %s", chunkname, line, emfmt)
    if tok then
      msg = string.format("%s near '%s'", msg, tok)
    else
    end
    return error(("LLT-ERROR" .. msg), 0)
  end
  local function lex_error(ls, token, em, ...)
    local tok = nil
    if (((token == "TK_name") or (token == "TK_string")) or (token == "TK_number")) then
      tok = ls.save_buf
    elseif token then
      tok = token2str(token)
    else
    end
    return error_lex(ls.chunkname, tok, ls.linenumber, em, ...)
  end
  local function char_isident(c)
    if (type(c) == "string") then
      local b = strbyte(c)
      if ((b >= ASCII_0) and (b <= ASCII_9)) then
        return true
      elseif ((b >= ASCII_a) and (b <= ASCII_z)) then
        return true
      elseif ((b >= ASCII_A) and (b <= ASCII_Z)) then
        return true
      else
        local ___antifnl_rtn_1___ = (c == "_")
        return ___antifnl_rtn_1___
      end
    else
    end
    return false
  end
  local function char_isdigit(c)
    if (type(c) == "string") then
      local b = strbyte(c)
      local ___antifnl_rtn_1___ = ((b >= ASCII_0) and (b <= ASCII_9))
      return ___antifnl_rtn_1___
    else
    end
    return false
  end
  local function char_isspace(c)
    local b = strbyte(c)
    return (((b >= 9) and (b <= 13)) or (b == 32))
  end
  local function byte(ls, n)
    local k = (ls.p + n)
    return strsub(ls.data, k, k)
  end
  local function pop(ls)
    local k = ls.p
    local c = strsub(ls.data, k, k)
    ls.p = (k + 1)
    ls.n = (ls.n - 1)
    return c
  end
  local function fillbuf(ls)
    local data = ls:read_func()
    if not data then
      return END_OF_STREAM
    else
    end
    ls.data, ls.n, ls.p = data, #data, 1
    return pop(ls)
  end
  local function nextchar(ls)
    local c = (((ls.n > 0) and pop(ls)) or fillbuf(ls))
    ls.current = c
    return c
  end
  local function curr_is_newline(ls)
    local c = ls.current
    return ((c == "\n") or (c == "\13"))
  end
  local function resetbuf(ls)
    ls.save_buf = ""
    return nil
  end
  local function resetbuf_tospace(ls)
    ls.space_buf = (ls.space_buf .. ls.save_buf)
    ls.save_buf = ""
    return nil
  end
  local function spaceadd(ls, str)
    ls.space_buf = (ls.space_buf .. str)
    return nil
  end
  local function save(ls, c)
    ls.save_buf = (ls.save_buf .. c)
    return nil
  end
  local function savespace_and_next(ls)
    ls.space_buf = (ls.space_buf .. ls.current)
    return nextchar(ls)
  end
  local function save_and_next(ls)
    ls.save_buf = (ls.save_buf .. ls.current)
    return nextchar(ls)
  end
  local function get_string(ls, init_skip, end_skip)
    return strsub(ls.save_buf, (init_skip + 1), ( - (end_skip + 1)))
  end
  local function get_space_string(ls)
    local s = ls.space_buf
    ls.space_buf = ""
    return s
  end
  local function inclinenumber(ls)
    local old = ls.current
    savespace_and_next(ls)
    if (curr_is_newline(ls) and (ls.current ~= old)) then
      savespace_and_next(ls)
    else
    end
    ls.linenumber = (ls.linenumber + 1)
    return nil
  end
  local function skip_sep(ls)
    local count = 0
    local s = ls.current
    assert(((s == "[") or (s == "]")))
    save_and_next(ls)
    while (ls.current == "=") do
      save_and_next(ls)
      count = (count + 1)
    end
    return (((ls.current == s) and count) or (( - count) - 1))
  end
  local function build_64int(str)
    local u = str[(#str - 2)]
    local x = (((u == 117) and uint64(0)) or int64(0))
    local i = 1
    while ((str[i] >= ASCII_0) and (str[i] <= ASCII_9)) do
      x = ((10 * x) + (str[i] - ASCII_0))
      i = (i + 1)
    end
    return x
  end
  local function byte_to_hexdigit(b)
    if ((b >= ASCII_0) and (b <= ASCII_9)) then
      return (b - ASCII_0)
    elseif ((b >= ASCII_a) and (b <= ASCII_f)) then
      return (10 + (b - ASCII_a))
    else
      return ( - 1)
    end
  end
  local function build_64hex(str)
    local u = str[(#str - 2)]
    local x = (((u == 117) and uint64(0)) or int64(0))
    local i = 3
    while str[i] do
      local n = byte_to_hexdigit(str[i])
      if (n < 0) then
        break
      else
      end
      x = ((16 * x) + n)
      i = (i + 1)
    end
    return x
  end
  local function strnumdump(str)
    local t = {}
    for i = 1, #str do
      local c = strsub(str, i, i)
      if char_isident(c) then
        t[i] = strbyte(c)
      else
        return nil
      end
    end
    return t
  end
  local function lex_number(ls)
    local lower = string.lower
    local xp = "e"
    local c = ls.current
    if (c == "0") then
      save_and_next(ls)
      local xc = ls.current
      if ((xc == "x") or (xc == "X")) then
        xp = "p"
      else
      end
    else
    end
    while ((char_isident(ls.current) or (ls.current == ".")) or (((ls.current == "-") or (ls.current == "+")) and (lower(c) == xp))) do
      c = lower(ls.current)
      save(ls, c)
      nextchar(ls)
    end
    local str = ls.save_buf
    local x = nil
    if (strsub(str, ( - 1), ( - 1)) == "i") then
      local img = tonumber(strsub(str, 1, ( - 2)))
      if img then
        x = complex(0, img)
      else
      end
    elseif (strsub(str, ( - 2), ( - 1)) == "ll") then
      local t = strnumdump(str)
      if t then
        x = (((xp == "e") and build_64int(t)) or build_64hex(t))
      else
      end
    else
      x = tonumber(str)
    end
    if x then
      return x
    else
      return lex_error(ls, "TK_number", "malformed number")
    end
  end
  local function lex_comment(ls)
    local c = ls.current
    while (((c ~= "\n") and (c ~= "\13")) and (c ~= END_OF_STREAM)) do
      save_and_next(ls)
      c = ls.current
    end
    return get_string(ls, 1, 0)
  end
  local function read_long_string(ls, sep, ret_value)
    save_and_next(ls)
    if curr_is_newline(ls) then
      inclinenumber(ls)
    else
    end
    while true do
      local c = ls.current
      if (c == END_OF_STREAM) then
        lex_error(ls, "TK_eof", ((ret_value and "unfinished long string") or "unfinished long comment"))
      elseif (c == "]") then
        if (skip_sep(ls) == sep) then
          save_and_next(ls)
          break
        else
        end
      elseif ((c == "\n") or (c == "\13")) then
        save(ls, "\n")
        inclinenumber(ls)
        if not ret_value then
          resetbuf(ls)
        else
        end
      else
        if ret_value then
          save_and_next(ls)
        else
          nextchar(ls)
        end
      end
    end
    if ret_value then
      return get_string(ls, (2 + sep), (2 + sep))
    else
      return nil
    end
  end
  local Escapes = {a = "\7", b = "\8", f = "\12", n = "\n", r = "\13", t = "\t", v = "\11"}
  local function hex_char(c)
    if string.match(c, "^%x") then
      local b = ___band___(strbyte(c), 15)
      if not char_isdigit(c) then
        b = (b + 9)
      else
      end
      return b
    else
      return nil
    end
  end
  local function read_escape_char(ls)
    local c = nextchar(ls)
    local esc = Escapes[c]
    if esc then
      save(ls, esc)
      return nextchar(ls)
    elseif (c == "x") then
      local ch1 = hex_char(nextchar(ls))
      local hc = nil
      if ch1 then
        local ch2 = hex_char(nextchar(ls))
        if ch2 then
          hc = strchar(((ch1 * 16) + ch2))
        else
        end
      else
      end
      if not hc then
        lex_error(ls, "TK_string", "invalid escape sequence")
      else
      end
      save(ls, hc)
      return nextchar(ls)
    elseif (c == "z") then
      nextchar(ls)
      while char_isspace(ls.current) do
        if curr_is_newline(ls) then
          inclinenumber(ls)
        else
          nextchar(ls)
        end
      end
      return nil
    elseif ((c == "\n") or (c == "\13")) then
      save(ls, "\n")
      return inclinenumber(ls)
    elseif (((c == "\\") or (c == "\"")) or (c == "'")) then
      save(ls, c)
      return nextchar(ls)
    elseif (c ~= END_OF_STREAM) then
      if not char_isdigit(c) then
        lex_error(ls, "TK_string", "invalid escape sequence")
      else
      end
      local bc = ___band___(strbyte(c), 15)
      if char_isdigit(nextchar(ls)) then
        bc = ((bc * 10) + ___band___(strbyte(ls.current), 15))
        if char_isdigit(nextchar(ls)) then
          bc = ((bc * 10) + ___band___(strbyte(ls.current), 15))
          if (bc > 255) then
            lex_error(ls, "TK_string", "invalid escape sequence")
          else
          end
          nextchar(ls)
        else
        end
      else
      end
      return save(ls, strchar(bc))
    else
      return nil
    end
  end
  local function read_string(ls, delim)
    save_and_next(ls)
    while (ls.current ~= delim) do
      local c = ls.current
      if (c == END_OF_STREAM) then
        lex_error(ls, "TK_eof", "unfinished string")
      elseif ((c == "\n") or (c == "\13")) then
        lex_error(ls, "TK_string", "unfinished string")
      elseif (c == "\\") then
        read_escape_char(ls)
      else
        save_and_next(ls)
      end
    end
    save_and_next(ls)
    return get_string(ls, 1, 1)
  end
  local function skip_line(ls)
    while (not curr_is_newline(ls) and (ls.current ~= END_OF_STREAM)) do
      savespace_and_next(ls)
    end
    return nil
  end
  local function llex(ls)
    resetbuf(ls)
    while true do
      local current = ls.current
      if char_isident(current) then
        if char_isdigit(current) then
          local ___antifnl_rtn_1___ = "TK_number"
          local ___antifnl_rtns_2___ = {lex_number(ls)}
          return ___antifnl_rtn_1___, (table.unpack or _G.unpack)(___antifnl_rtns_2___)
        else
        end
        local function sn()
          save_and_next(ls)
          if char_isident(ls.current) then
            return sn()
          else
            return nil
          end
        end
        sn()
        local s = get_string(ls, 0, 0)
        local reserved = Reserved_keyword[s]
        if reserved then
          local ___antifnl_rtn_1___ = ("TK_" .. s)
          return ___antifnl_rtn_1___
        else
          return "TK_name", s
        end
      else
      end
      if ((current == "\n") or (current == "\13")) then
        inclinenumber(ls)
      elseif ((((current == " ") or (current == "\t")) or (current == "\8")) or (current == "\12")) then
        savespace_and_next(ls)
      elseif (current == "-") then
        nextchar(ls)
        if (ls.current ~= "-") then
          return "-"
        else
        end
        nextchar(ls)
        spaceadd(ls, "--")
        if (ls.current == "[") then
          local sep = skip_sep(ls)
          resetbuf_tospace(ls)
          if (sep >= 0) then
            read_long_string(ls, sep, false)
            resetbuf_tospace(ls)
          else
            skip_line(ls)
          end
        elseif ls.comments then
          local ___antifnl_rtn_1___ = "TK_comment"
          local ___antifnl_rtns_2___ = {lex_comment(ls)}
          return ___antifnl_rtn_1___, (table.unpack or _G.unpack)(___antifnl_rtns_2___)
        else
          skip_line(ls)
        end
      elseif (current == "[") then
        local sep = skip_sep(ls)
        if (sep >= 0) then
          local str = read_long_string(ls, sep, true)
          return "TK_string", str
        elseif (sep == ( - 1)) then
          return "["
        else
          lex_error(ls, "TK_string", "delimiter error")
        end
      elseif (current == "=") then
        nextchar(ls)
        if (ls.current ~= "=") then
          return "="
        else
          nextchar(ls)
          return "TK_eq"
        end
      elseif (current == "<") then
        nextchar(ls)
        if (ls.current == "=") then
          nextchar(ls)
          return "TK_le"
        elseif (ls.current == "<") then
          nextchar(ls)
          return "TK_shl"
        else
          return "<"
        end
      elseif (current == ">") then
        nextchar(ls)
        if (ls.current == "=") then
          nextchar(ls)
          return "TK_ge"
        elseif (ls.current == ">") then
          nextchar(ls)
          return "TK_shr"
        else
          return ">"
        end
      elseif (current == "~") then
        nextchar(ls)
        if (ls.current ~= "=") then
          return "~"
        else
          nextchar(ls)
          return "TK_ne"
        end
      elseif (current == ":") then
        nextchar(ls)
        if (ls.current ~= ":") then
          return ":"
        else
          nextchar(ls)
          return "TK_label"
        end
      elseif ((current == "\"") or (current == "'")) then
        local str = read_string(ls, current)
        return "TK_string", str
      elseif (current == ".") then
        save_and_next(ls)
        if (ls.current == ".") then
          nextchar(ls)
          if (ls.current == ".") then
            nextchar(ls)
            return "TK_dots"
          else
          end
          return "TK_concat"
        elseif not char_isdigit(ls.current) then
          return "."
        else
          local ___antifnl_rtn_1___ = "TK_number"
          local ___antifnl_rtns_2___ = {lex_number(ls)}
          return ___antifnl_rtn_1___, (table.unpack or _G.unpack)(___antifnl_rtns_2___)
        end
      elseif (current == END_OF_STREAM) then
        return "TK_eof"
      else
        nextchar(ls)
        return current
      end
    end
    return nil
  end
  local Lexer = {error = lex_error, token2str = token2str}
  Lexer.next = function(ls)
    ls.lastline = ls.linenumber
    if (ls.tklookahead == "TK_eof") then
      ls.token, ls.tokenval = llex(ls)
      ls.space = get_space_string(ls)
      return nil
    else
      ls.token, ls.tokenval = ls.tklookahead, ls.tklookaheadval
      ls.space = ls.spaceahead
      ls.tklookahead = "TK_eof"
      return nil
    end
  end
  Lexer.lookahead = function(ls)
    assert((ls.tklookahead == "TK_eof"))
    ls.tklookahead, ls.tklookaheadval = llex(ls)
    ls.spaceahead = get_space_string(ls)
    return ls.tklookahead
  end
  local Lexer_class = {__index = Lexer}
  local function lex_setup(read_func, chunkname, comments)
    local ls = {chunkname = chunkname, comments = comments, lastline = 1, linenumber = 1, n = 0, read_func = read_func, space_buf = "", tklookahead = "TK_eof"}
    nextchar(ls)
    if ((((ls.current == "\239") and (ls.n >= 2)) and (byte(ls, 0) == "\187")) and (byte(ls, 1) == "\191")) then
      ls.n = (ls.n - 2)
      ls.p = (ls.p + 2)
      nextchar(ls)
    else
    end
    if (ls.current == "#") then
      local function nc()
        nextchar(ls)
        if (ls.current == END_OF_STREAM) then
          return ls
        else
        end
        if curr_is_newline(ls) then
          return nc()
        else
          return nil
        end
      end
      nc()
      inclinenumber(ls)
    else
    end
    return setmetatable(ls, Lexer_class)
  end
  return lex_setup
end
package.preload["antifnl.lua_ast"] = package.preload["antifnl.lua_ast"] or function(...)
  local id_generator = require("antifnl.id_generator")
  local function build(kind, node)
    node.kind = kind
    return node
  end
  local function ident(ast, name, line, field)
    return build("Identifier", {line = line, name = ast.mangle(name, field)})
  end
  local function does_multi_return(expr)
    local k = expr.kind
    return (((k == "CallExpression") or (k == "SendExpression")) or (k == "Vararg"))
  end
  local AST = {}
  local function func_decl(id, body, params, vararg, locald, firstline, lastline)
    return build("FunctionDeclaration", {body = body, firstline = firstline, id = id, lastline = lastline, line = firstline, locald = locald, params = params, vararg = vararg})
  end
  local function func_expr(body, params, vararg, firstline, lastline)
    return build("FunctionExpression", {body = body, firstline = firstline, lastline = lastline, params = params, vararg = vararg})
  end
  AST.expr_function = function(_ast, args, body, proto)
    return func_expr(body, args, proto.varargs, proto.firstline, proto.lastline)
  end
  AST.local_function_decl = function(ast, name, args, body, proto)
    local id = ast:var_declare(name)
    return func_decl(id, body, args, proto.varargs, true, proto.firstline, proto.lastline)
  end
  AST.function_decl = function(_ast, path, args, body, proto)
    return func_decl(path, body, args, proto.varargs, false, proto.firstline, proto.lastline)
  end
  AST.func_parameters_decl = function(ast, args, vararg)
    local params = {}
    for i = 1, #args do
      params[i] = ast:var_declare(args[i])
    end
    if vararg then
      params[(#params + 1)] = ast:expr_vararg()
    else
    end
    return params
  end
  AST.chunk = function(_ast, body, chunkname, firstline, lastline)
    return build("Chunk", {body = body, chunkname = chunkname, firstline = firstline, lastline = lastline})
  end
  AST.local_decl = function(ast, vlist, exps, line)
    local ids = {}
    for k = 1, #vlist do
      ids[k] = ast:var_declare(vlist[k])
    end
    return build("LocalDeclaration", {expressions = exps, line = line, names = ids})
  end
  AST.assignment_expr = function(_ast, vars, exps, line)
    return build("AssignmentExpression", {left = vars, line = line, right = exps})
  end
  AST.expr_index = function(_ast, v, index, line)
    return build("MemberExpression", {computed = true, line = line, object = v, property = index})
  end
  AST.expr_property = function(ast, v, prop, line)
    local index = ident(ast, prop, line, true)
    return build("MemberExpression", {line = line, object = v, property = index, computed = false})
  end
  AST.literal = function(_ast, val)
    return build("Literal", {value = val})
  end
  AST.expr_vararg = function(_ast)
    return build("Vararg", {})
  end
  AST.expr_brackets = function(_ast, expr)
    expr.bracketed = true
    return expr
  end
  AST.set_expr_last = function(_ast, expr)
    if (expr.bracketed and does_multi_return(expr)) then
      expr.bracketed = nil
      return build("ExpressionValue", {value = expr})
    else
      return expr
    end
  end
  AST.expr_table = function(_ast, keyvals, line)
    return build("Table", {keyvals = keyvals, line = line})
  end
  AST.expr_unop = function(_ast, op, v, line)
    return build("UnaryExpression", {argument = v, line = line, operator = op})
  end
  local function concat_append(ts, node)
    local n = #ts
    if (node.kind == "ConcatenateExpression") then
      for k = 1, #node.terms do
        ts[(n + k)] = node.terms[k]
      end
      return nil
    else
      ts[(n + 1)] = node
      return nil
    end
  end
  AST.expr_binop = function(_ast, op, expa, expb, line)
    local binop_body = ((op ~= "..") and {left = expa, line = line, operator = op, right = expb})
    if binop_body then
      if ((op == "and") or (op == "or")) then
        return build("LogicalExpression", binop_body)
      else
        return build("BinaryExpression", binop_body)
      end
    else
      local terms = {}
      concat_append(terms, expa)
      concat_append(terms, expb)
      return build("ConcatenateExpression", {line = expa.line, terms = terms})
    end
  end
  AST.identifier = function(ast, name)
    return ident(ast, name)
  end
  AST.expr_method_call = function(ast, v, key, args, line)
    local m = ident(ast, key, nil, true)
    return build("SendExpression", {arguments = args, line = line, method = m, receiver = v})
  end
  AST.expr_function_call = function(_ast, v, args, line)
    return build("CallExpression", {arguments = args, callee = v, line = line})
  end
  AST.return_stmt = function(_ast, exps, line)
    return build("ReturnStatement", {arguments = exps, line = line})
  end
  AST.break_stmt = function(_ast, line)
    return build("BreakStatement", {line = line})
  end
  AST.label_stmt = function(_ast, name, line)
    return build("LabelStatement", {label = name, line = line})
  end
  AST.new_statement_expr = function(_ast, expr, line)
    return build("ExpressionStatement", {expression = expr, line = line})
  end
  AST.if_stmt = function(_ast, tests, cons, else_branch, line)
    return build("IfStatement", {alternate = else_branch, cons = cons, line = line, tests = tests})
  end
  AST.do_stmt = function(_ast, body, line, lastline)
    return build("DoStatement", {body = body, lastline = lastline, line = line})
  end
  AST.while_stmt = function(_ast, test, body, line, lastline)
    return build("WhileStatement", {body = body, lastline = lastline, line = line, test = test})
  end
  AST.repeat_stmt = function(_ast, test, body, line, lastline)
    return build("RepeatStatement", {body = body, lastline = lastline, line = line, test = test})
  end
  AST.for_stmt = function(_ast, ___var___, init, last, step, body, line, lastline)
    local for_init = build("ForInit", {id = ___var___, line = line, value = init})
    return build("ForStatement", {body = body, init = for_init, last = last, lastline = lastline, line = line, step = step})
  end
  AST.for_iter_stmt = function(_ast, vars, exps, body, line, lastline)
    local names = build("ForNames", {line = line, names = vars})
    return build("ForInStatement", {body = body, explist = exps, lastline = lastline, line = line, namelist = names})
  end
  AST.comment = function(_ast, contents)
    return build("Comment", {contents = contents})
  end
  AST.goto_stmt = function(_ast, name, line)
    return build("GotoStatement", {label = name, line = line})
  end
  AST.var_declare = function(ast, name)
    local id = ident(ast, name)
    ast.variables:declare(name)
    return id
  end
  AST.genid = function(ast, name)
    return id_generator.genid(ast.variables, name)
  end
  AST.fscope_begin = function(ast)
    return ast.variables:scope_enter()
  end
  AST.fscope_end = function(ast)
    id_generator.close_gen_variables(ast.variables)
    return ast.variables:scope_exit()
  end
  local ASTClass = {__index = AST}
  local function new_scope(parent_scope)
    return {parent = parent_scope, vars = {}}
  end
  local function new_variables_registry(create, ___match___)
    local function declare(self, name)
      local vars = self.current.vars
      local entry = create(name)
      vars[(#vars + 1)] = entry
      return entry
    end
    local function scope_enter(self)
      self.current = new_scope(self.current)
      return nil
    end
    local function scope_exit(self)
      self.current = self.current.parent
      return nil
    end
    local function lookup(self, name)
      local scope = self.current
      while scope do
        for i = 1, #scope.vars do
          if ___match___(scope.vars[i], name) then
            return scope
          else
          end
        end
        scope = scope.parent
      end
      return nil
    end
    return {declare = declare, lookup = lookup, scope_enter = scope_enter, scope_exit = scope_exit}
  end
  local function default_mangle(name)
    return name
  end
  local function new_ast(mangle)
    local function match_id_name(id, name)
      return (id.name == name)
    end
    local ast = {mangle = (mangle or default_mangle)}
    local function create(...)
      return ident(ast, ...)
    end
    ast.variables = new_variables_registry(create, match_id_name)
    return setmetatable(ast, ASTClass)
  end
  return {New = new_ast}
end
package.preload["antifnl.id_generator"] = package.preload["antifnl.id_generator"] or function(...)
  local function unique_name(variables, name)
    if (variables:lookup(name) ~= nil) then
      local prefix, index = string.match(name, "^(.+)(%d+)$")
      if not prefix then
        prefix, index = name, 1
      else
        index = (tonumber(index) + 1)
      end
      local test_name = (prefix .. tostring(index))
      while (variables:lookup(test_name) ~= nil) do
        index = (index + 1)
        test_name = (prefix .. tostring(index))
      end
      return test_name
    else
      return name
    end
  end
  local function pseudo(name)
    return ("@" .. name)
  end
  local function pseudo_match(pseudo_name)
    return string.match(pseudo_name, "^@(.+)$")
  end
  local function genid(variables, name)
    local pname = pseudo((name or "_"))
    local uname = unique_name(variables, pname)
    return variables:declare(uname)
  end
  local function normalize(variables, raw_name)
    local name = pseudo_match(raw_name)
    local uname = unique_name(variables, name)
    return uname
  end
  local function close_gen_variables(variables)
    local vars = variables.current.vars
    for i = 1, #vars do
      local id = vars[i]
      if pseudo_match(id.name) then
        id.name = normalize(variables, id.name)
      else
      end
    end
    return nil
  end
  return {close_gen_variables = close_gen_variables, genid = genid}
end
package.preload["antifnl.parser"] = package.preload["antifnl.parser"] or function(...)
  local operator = require("antifnl.operator")
  local LJ_52 = false
  local End_of_block = {TK_else = true, TK_elseif = true, TK_end = true, TK_eof = true, TK_until = true}
  local function err_syntax(ls, em)
    return ls:error(ls.token, em)
  end
  local function err_token(ls, token)
    return ls:error(ls.token, "'%s' expected", ls.token2str(token))
  end
  local function checkcond(ls, cond, em)
    if not cond then
      return err_syntax(ls, em)
    else
      return nil
    end
  end
  local function skip_comment(ls)
    while (ls.token == "TK_comment") do
      ls:next()
    end
    return nil
  end
  local function lex_opt(ls, tok)
    if (ls.token == tok) then
      ls:next()
      return true
    else
    end
    return false
  end
  local function lex_check(ls, tok)
    if (ls.token ~= tok) then
      err_token(ls, tok)
    else
    end
    return ls:next()
  end
  local function lex_match(ls, what, who, line)
    if not lex_opt(ls, what) then
      if (line == ls.linenumber) then
        return err_token(ls, what)
      else
        local token2str = ls.token2str
        return ls:error(ls.token, "%s expected (to close %s at line %d)", token2str(what), token2str(who), line)
      end
    else
      return nil
    end
  end
  local function lex_str(ls)
    if ((ls.token ~= "TK_name") and (LJ_52 or (ls.token ~= "TK_goto"))) then
      err_token(ls, "TK_name")
    else
    end
    local s = ls.tokenval
    ls:next()
    return s
  end
  local expr_primary, expr, expr_unop, expr_binop, expr_simple = nil
  local expr_list, expr_table = nil
  local parse_body, parse_block, parse_args = nil
  local function var_lookup(ast, ls)
    local name = lex_str(ls)
    return ast:identifier(name)
  end
  local function expr_field(ast, ls, v)
    ls:next()
    local key = lex_str(ls)
    return ast:expr_property(v, key)
  end
  local function expr_bracket(ast, ls)
    ls:next()
    local v = expr(ast, ls)
    lex_check(ls, "]")
    return v
  end
  local function _281_(ast, ls)
    local line = ls.linenumber
    local kvs = {}
    lex_check(ls, "{")
    while (ls.token ~= "}") do
      skip_comment(ls)
      local key = nil
      if (ls.token == "[") then
        key = expr_bracket(ast, ls)
        lex_check(ls, "=")
      elseif (((ls.token == "TK_name") or (not LJ_52 and (ls.token == "TK_goto"))) and (ls:lookahead() == "=")) then
        local name = lex_str(ls)
        key = ast:literal(name)
        lex_check(ls, "=")
      else
      end
      local val = expr(ast, ls)
      kvs[(#kvs + 1)] = {val, key}
      if (not lex_opt(ls, ",") and not lex_opt(ls, ";")) then
        break
      else
      end
    end
    lex_match(ls, "}", "{", line)
    return ast:expr_table(kvs, line)
  end
  expr_table = _281_
  local function _284_(ast, ls)
    local tk, val = ls.token, ls.tokenval
    local e = nil
    if (tk == "TK_number") then
      e = ast:literal(val)
    elseif (tk == "TK_string") then
      e = ast:literal(val)
    elseif (tk == "TK_nil") then
      e = ast:literal(nil)
    elseif (tk == "TK_true") then
      e = ast:literal(true)
    elseif (tk == "TK_false") then
      e = ast:literal(false)
    elseif (tk == "TK_dots") then
      if not ls.fs.varargs then
        err_syntax(ls, "cannot use \"...\" outside a vararg function")
      else
      end
      e = ast:expr_vararg()
    elseif (tk == "{") then
      local ___antifnl_rtns_1___ = {expr_table(ast, ls)}
      return (table.unpack or _G.unpack)(___antifnl_rtns_1___)
    elseif (tk == "TK_function") then
      ls:next()
      local args, body, proto = parse_body(ast, ls, ls.linenumber, false)
      local ___antifnl_rtn_1___ = ast:expr_function(args, body, proto)
      return ___antifnl_rtn_1___
    else
      local ___antifnl_rtns_1___ = {expr_primary(ast, ls)}
      return (table.unpack or _G.unpack)(___antifnl_rtns_1___)
    end
    ls:next()
    return e
  end
  expr_simple = _284_
  local function _287_(ast, ls)
    local exps = {}
    exps[1] = expr(ast, ls)
    while lex_opt(ls, ",") do
      exps[(#exps + 1)] = expr(ast, ls)
    end
    local n = #exps
    if (n > 0) then
      exps[n] = ast:set_expr_last(exps[n])
    else
    end
    return exps
  end
  expr_list = _287_
  local function _289_(ast, ls)
    local tk = ls.token
    if ((((tk == "TK_not") or (tk == "-")) or (tk == "#")) or (tk == "~")) then
      local line = ls.linenumber
      ls:next()
      local v = expr_binop(ast, ls, operator.unary_priority)
      return ast:expr_unop(ls.token2str(tk), v, line)
    else
      return expr_simple(ast, ls)
    end
  end
  expr_unop = _289_
  local function _291_(ast, ls, limit)
    local v = expr_unop(ast, ls)
    local op = ls.token2str(ls.token)
    while (operator.is_binop(op) and (operator.left_priority(op) > limit)) do
      local line = ls.linenumber
      ls:next()
      local v2, nextop = expr_binop(ast, ls, operator.right_priority(op))
      v = ast:expr_binop(op, v, v2, line)
      op = nextop
    end
    return v, op
  end
  expr_binop = _291_
  local function _292_(ast, ls)
    return expr_binop(ast, ls, 0)
  end
  expr = _292_
  local function _293_(ast, ls)
    local v, vk = nil
    if (ls.token == "(") then
      local line = ls.linenumber
      ls:next()
      vk, v = "expr", ast:expr_brackets(expr(ast, ls))
      lex_match(ls, ")", "(", line)
    elseif ((ls.token == "TK_name") or (not LJ_52 and (ls.token == "TK_goto"))) then
      vk, v = "var", var_lookup(ast, ls)
    else
      err_syntax(ls, "unexpected symbol")
    end
    while true do
      local line = ls.linenumber
      if (ls.token == ".") then
        vk, v = "indexed", expr_field(ast, ls, v)
      elseif (ls.token == "[") then
        local key = expr_bracket(ast, ls)
        vk, v = "indexed", ast:expr_index(v, key)
      elseif (ls.token == ":") then
        ls:next()
        local key = lex_str(ls)
        local args = parse_args(ast, ls)
        vk, v = "call", ast:expr_method_call(v, key, args, line)
      elseif (((ls.token == "(") or (ls.token == "TK_string")) or (ls.token == "{")) then
        local args = parse_args(ast, ls)
        vk, v = "call", ast:expr_function_call(v, args, line)
      else
        break
      end
    end
    return v, vk
  end
  expr_primary = _293_
  local function parse_return(ast, ls, line)
    ls:next()
    ls.fs.has_return = true
    local exps = nil
    if (End_of_block[ls.token] or (ls.token == ";")) then
      exps = {}
    else
      exps = expr_list(ast, ls)
    end
    skip_comment(ls)
    return ast:return_stmt(exps, line)
  end
  local function parse_for_num(ast, ls, varname, line)
    lex_check(ls, "=")
    local init = expr(ast, ls)
    lex_check(ls, ",")
    local last = expr(ast, ls)
    local step = nil
    if lex_opt(ls, ",") then
      step = expr(ast, ls)
    else
      step = ast:literal(1)
    end
    lex_check(ls, "TK_do")
    local body = parse_block(ast, ls, line)
    local ___var___ = ast:identifier(varname)
    return ast:for_stmt(___var___, init, last, step, body, line, ls.linenumber)
  end
  local function parse_for_iter(ast, ls, indexname)
    local vars = {ast:identifier(indexname)}
    while lex_opt(ls, ",") do
      vars[(#vars + 1)] = ast:identifier(lex_str(ls))
    end
    lex_check(ls, "TK_in")
    local line = ls.linenumber
    local exps = expr_list(ast, ls)
    lex_check(ls, "TK_do")
    local body = parse_block(ast, ls, line)
    return ast:for_iter_stmt(vars, exps, body, line, ls.linenumber)
  end
  local function parse_for(ast, ls, line)
    ls:next()
    local varname = lex_str(ls)
    local stmt = nil
    if (ls.token == "=") then
      stmt = parse_for_num(ast, ls, varname, line)
    elseif ((ls.token == ",") or (ls.token == "TK_in")) then
      stmt = parse_for_iter(ast, ls, varname)
    else
      err_syntax(ls, "'=' or 'in' expected")
    end
    lex_match(ls, "TK_end", "TK_for", line)
    return stmt
  end
  local function parse_repeat(ast, ls, line)
    ast:fscope_begin()
    ls:next()
    local body = parse_block(ast, ls)
    local lastline = ls.linenumber
    lex_match(ls, "TK_until", "TK_repeat", line)
    local cond = expr(ast, ls)
    ast:fscope_end()
    return ast:repeat_stmt(cond, body, line, lastline)
  end
  local function _299_(ast, ls)
    local line = ls.linenumber
    local args = nil
    if (ls.token == "(") then
      if (not LJ_52 and (line ~= ls.lastline)) then
        err_syntax(ls, "ambiguous syntax (function call x new statement)")
      else
      end
      ls:next()
      if (ls.token ~= ")") then
        args = expr_list(ast, ls)
      else
        args = {}
      end
      lex_match(ls, ")", "(", line)
    elseif (ls.token == "{") then
      local a = expr_table(ast, ls)
      args = {a}
    elseif (ls.token == "TK_string") then
      local a = ls.tokenval
      ls:next()
      args = {ast:literal(a)}
    else
      err_syntax(ls, "function arguments expected")
    end
    return args
  end
  parse_args = _299_
  local function parse_assignment(ast, ls, vlist, ___var___, vk)
    local line = ls.linenumber
    checkcond(ls, ((vk == "var") or (vk == "indexed")), "syntax error")
    vlist[(#vlist + 1)] = ___var___
    if lex_opt(ls, ",") then
      local n_var, n_vk = expr_primary(ast, ls)
      return parse_assignment(ast, ls, vlist, n_var, n_vk)
    else
      lex_check(ls, "=")
      local exps = expr_list(ast, ls)
      return ast:assignment_expr(vlist, exps, line)
    end
  end
  local function parse_call_assign(ast, ls)
    local ___var___, vk = expr_primary(ast, ls)
    if (vk == "call") then
      return ast:new_statement_expr(___var___, ls.linenumber)
    else
      local vlist = {}
      return parse_assignment(ast, ls, vlist, ___var___, vk)
    end
  end
  local function parse_local(ast, ls)
    local line = ls.linenumber
    if lex_opt(ls, "TK_function") then
      local name = lex_str(ls)
      local args, body, proto = parse_body(ast, ls, line, false)
      return ast:local_function_decl(name, args, body, proto)
    else
      local vl = {}
      local function collect_lhs()
        vl[(#vl + 1)] = lex_str(ls)
        if lex_opt(ls, ",") then
          return collect_lhs()
        else
          return nil
        end
      end
      collect_lhs()
      local exps = nil
      if lex_opt(ls, "=") then
        exps = expr_list(ast, ls)
      else
        exps = {}
      end
      return ast:local_decl(vl, exps, line)
    end
  end
  local function parse_func(ast, ls, line)
    local needself = false
    ls:next()
    local v = var_lookup(ast, ls)
    while (ls.token == ".") do
      v = expr_field(ast, ls, v)
    end
    if (ls.token == ":") then
      needself = true
      v = expr_field(ast, ls, v)
    else
    end
    local args, body, proto = parse_body(ast, ls, line, needself)
    return ast:function_decl(v, args, body, proto)
  end
  local function parse_while(ast, ls, line)
    ls:next()
    local cond = expr(ast, ls)
    ast:fscope_begin()
    lex_check(ls, "TK_do")
    local body = parse_block(ast, ls)
    local lastline = ls.linenumber
    lex_match(ls, "TK_end", "TK_while", line)
    ast:fscope_end()
    return ast:while_stmt(cond, body, line, lastline)
  end
  local function parse_then(ast, ls, tests, line)
    ls:next()
    tests[(#tests + 1)] = expr(ast, ls)
    lex_check(ls, "TK_then")
    return parse_block(ast, ls, line)
  end
  local function parse_if(ast, ls, line)
    local tests, blocks = {}, {}
    blocks[1] = parse_then(ast, ls, tests, line)
    while (ls.token == "TK_elseif") do
      blocks[(#blocks + 1)] = parse_then(ast, ls, tests, ls.linenumber)
    end
    local else_branch = nil
    if (ls.token == "TK_else") then
      local eline = ls.linenumber
      ls:next()
      else_branch = parse_block(ast, ls, eline)
    else
    end
    lex_match(ls, "TK_end", "TK_if", line)
    return ast:if_stmt(tests, blocks, else_branch, line)
  end
  local function parse_label(ast, ls)
    ls:next()
    local name = lex_str(ls)
    lex_check(ls, "TK_label")
    while true do
      if (ls.token == "TK_label") then
        parse_label(ast, ls)
      elseif (LJ_52 and (ls.token == ";")) then
        ls:next()
      else
        break
      end
    end
    return ast:label_stmt(name, ls.linenumber)
  end
  local function parse_goto(ast, ls)
    local line = ls.linenumber
    local name = lex_str(ls)
    return ast:goto_stmt(name, line)
  end
  local function parse_stmt(ast, ls)
    local line = ls.linenumber
    local stmt = nil
    if (ls.token == "TK_if") then
      stmt = parse_if(ast, ls, line)
    elseif (ls.token == "TK_while") then
      stmt = parse_while(ast, ls, line)
    elseif (ls.token == "TK_do") then
      ls:next()
      local body = parse_block(ast, ls)
      local lastline = ls.linenumber
      lex_match(ls, "TK_end", "TK_do", line)
      stmt = ast:do_stmt(body, line, lastline)
    elseif (ls.token == "TK_for") then
      stmt = parse_for(ast, ls, line)
    elseif (ls.token == "TK_repeat") then
      stmt = parse_repeat(ast, ls, line)
    elseif (ls.token == "TK_function") then
      stmt = parse_func(ast, ls, line)
    elseif (ls.token == "TK_local") then
      ls:next()
      stmt = parse_local(ast, ls, line)
    elseif (ls.token == "TK_return") then
      stmt = parse_return(ast, ls, line)
      return stmt, true
    elseif (ls.token == "TK_break") then
      ls:next()
      stmt = ast:break_stmt(line)
      local ___antifnl_rtn_1___ = stmt
      local ___antifnl_rtn_2___ = not LJ_52
      return ___antifnl_rtn_1___, ___antifnl_rtn_2___
    elseif (LJ_52 and (ls.token == ";")) then
      ls:next()
      local ___antifnl_rtns_1___ = {parse_stmt(ast, ls)}
      return (table.unpack or _G.unpack)(___antifnl_rtns_1___)
    elseif (ls.token == "TK_label") then
      stmt = parse_label(ast, ls)
    elseif (ls.token == "TK_goto") then
      if (LJ_52 or (ls:lookahead() == "TK_name")) then
        ls:next()
        stmt = parse_goto(ast, ls)
      else
      end
    else
    end
    if not stmt then
      stmt = parse_call_assign(ast, ls)
    else
    end
    return stmt, false
  end
  local function parse_params(_ast, ls, needself)
    lex_check(ls, "(")
    local args = {}
    local vararg = false
    if needself then
      args[1] = "self"
    else
    end
    if (ls.token ~= ")") then
      local function tk_args()
        if ((ls.token == "TK_name") or (not LJ_52 and (ls.token == "TK_goto"))) then
          local name = lex_str(ls)
          args[(#args + 1)] = name
          if lex_opt(ls, ",") then
            skip_comment(ls)
            return tk_args()
          else
            return nil
          end
        elseif (ls.token == "TK_dots") then
          ls:next()
          vararg = true
          return nil
        else
          return err_syntax(ls, "<name> or \"...\" expected")
        end
      end
      tk_args()
    else
    end
    lex_check(ls, ")")
    return args, vararg
  end
  local function new_proto(_ls, varargs)
    return {varargs = varargs}
  end
  local function parse_block_stmts(ast, ls)
    local firstline = ls.linenumber
    local islast, stmt = false
    local body = {}
    while (not islast and not End_of_block[ls.token]) do
      if (ls.token == "TK_comment") then
        stmt = ast:comment(ls.tokenval)
        ls:next()
      else
        stmt, islast = parse_stmt(ast, ls)
      end
      body[(#body + 1)] = stmt
      lex_opt(ls, ";")
    end
    return body, firstline, ls.linenumber
  end
  local function parse_chunk(ast, ls)
    local body, _, lastline = parse_block_stmts(ast, ls)
    return ast:chunk(body, ls.chunkname, 0, lastline)
  end
  local function _319_(ast, ls, line, needself)
    local pfs = ls.fs
    ls.fs = new_proto(ls, false)
    ast:fscope_begin()
    ls.fs.firstline = line
    local args, vararg = parse_params(ast, ls, needself)
    local params = ast:func_parameters_decl(args, vararg)
    ls.fs.varargs = vararg
    local body = parse_block(ast, ls)
    ast:fscope_end()
    local proto = ls.fs
    if (ls.token ~= "TK_end") then
      lex_match(ls, "TK_end", "TK_function", line)
    else
    end
    ls.fs.lastline = ls.linenumber
    ls:next()
    ls.fs = pfs
    return params, body, proto
  end
  parse_body = _319_
  local function _321_(ast, ls, firstline)
    ast:fscope_begin()
    local body = parse_block_stmts(ast, ls)
    body.firstline, body.lastline = firstline, ls.linenumber
    ast:fscope_end()
    return body
  end
  parse_block = _321_
  local function parse(ast, ls)
    ls:next()
    ls.fs = new_proto(ls, true)
    ast:fscope_begin()
    local chunk = parse_chunk(ast, ls)
    ast:fscope_end()
    if (ls.token ~= "TK_eof") then
      err_token(ls, "TK_eof")
    else
    end
    return chunk
  end
  return parse
end
package.preload["antifnl.operator"] = package.preload["antifnl.operator"] or function(...)
  local binop = {["%"] = ((10 * 256) + 10), ["&"] = ((6 * 256) + 6), ["*"] = ((10 * 256) + 10), ["+"] = ((9 * 256) + 9), ["-"] = ((9 * 256) + 9), [".."] = ((8 * 256) + 7), ["/"] = ((10 * 256) + 10), ["<"] = ((3 * 256) + 3), ["<<"] = ((7 * 256) + 7), ["<="] = ((3 * 256) + 3), ["=="] = ((3 * 256) + 3), [">"] = ((3 * 256) + 3), [">="] = ((3 * 256) + 3), [">>"] = ((7 * 256) + 7), ["^"] = ((13 * 256) + 12), ["and"] = ((2 * 256) + 2), ["or"] = ((1 * 256) + 1), ["|"] = ((4 * 256) + 4), ["~"] = ((5 * 256) + 5), ["~="] = ((3 * 256) + 3)}
  local unary_priority = 12
  local ident_priority = 16
  local function is_binop(op)
    return binop[op]
  end
  local function left_priority(op)
    return bit.rshift(binop[op], 8)
  end
  local function right_priority(op)
    return bit.band(binop[op], 255)
  end
  return {ident_priority = ident_priority, is_binop = is_binop, left_priority = left_priority, right_priority = right_priority, unary_priority = unary_priority}
end
local function compile(rdr, filename, comments)
  local lex_setup = require("antifnl.lexer")
  local lua_ast = require("antifnl.lua_ast")
  local parse = require("antifnl.parser")
  local ls = lex_setup(rdr, filename, comments)
  local ast_builder = lua_ast.New(mangle)
  local ast_tree = parse(ast_builder, ls)
  return letter.compile(compiler(nil, ast_tree))
end
if ((debug and debug.getinfo) and (debug.getinfo(3) == nil)) then
  local filename = (((arg[1] == "-") and "/dev/stdin") or arg[1])
  local comments = false
  for i, a in ipairs(arg) do
    if (a == "--comments") then
      table.remove(arg, i)
      comments = true
    else
    end
  end
  local f = (filename and io.open(filename))
  if f then
    f:close()
    for _, code in ipairs(compile(reader.file(filename), filename, comments)) do
      print((fnlfmt.fnlfmt(code) .. "\n"))
    end
    return nil
  else
    print("Antifennel version 0.3.1.")
    print(("Usage: %s [--comments] LUA_FILENAME"):format(arg[0]))
    print("Compiles LUA_FILENAME to Fennel and prints output.")
    return os.exit(1)
  end
else
  local function _325_(str, source, filename, comments)
    local out = {}
    for _, code in ipairs(compile(reader.string(str), (source or "*source")), filename, comments) do
      table.insert(out, fnlfmt.fnlfmt(code))
    end
    return table.concat(out, "\n")
  end
  return _325_
end
