Package org.mozilla.javascript
Class Parser
- java.lang.Object
-
- org.mozilla.javascript.Parser
-
public class Parser extends java.lang.ObjectThis class implements the JavaScript parser.It is based on the SpiderMonkey C source files jsparse.c and jsparse.h in the jsref package.
The parser generates an
AstRootparse tree representing the source code. No tree rewriting is permitted at this stage, so that the parse tree is a faithful representation of the source for frontend processing tools and IDEs.This parser implementation is not intended to be reused after a parse finishes, and will throw an IllegalStateException() if invoked again.
- See Also:
TokenStream
-
-
Nested Class Summary
Nested Classes Modifier and Type Class Description protected classParser.PerFunctionVariables
-
Field Summary
Fields Modifier and Type Field Description static intARGC_LIMITMaximum number of allowed function or constructor arguments, to follow SpiderMonkey.protected booleaninUseStrictDirectiveprotected intnestingOfFunction
-
Constructor Summary
Constructors Constructor Description Parser()Parser(CompilerEnvirons compilerEnv)Parser(CompilerEnvirons compilerEnv, ErrorReporter errorReporter)
-
Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description protected voidcheckActivationName(java.lang.String name, int token)protected voidcheckMutableReference(Node n)protected NodecreateName(int type, java.lang.String name, Node child)protected NodecreateName(java.lang.String name)protected NodecreateNumber(double number)protected ScopecreateScopeNode(int token, int lineno)Create a node that can be used to hold lexically scoped variable definitions (via let declarations).booleaneof()booleaninUseStrictDirective()AstRootparse(java.io.Reader sourceReader, java.lang.String sourceURI, int lineno)Deprecated.use parse(String, String, int) insteadAstRootparse(java.lang.String sourceString, java.lang.String sourceURI, int lineno)Builds a parse tree from the given source string.protected AstNoderemoveParens(AstNode node)voidsetDefaultUseStrictDirective(boolean useStrict)protected voidsetIsGenerator()protected voidsetRequiresActivation()protected NodesimpleAssignment(Node left, Node right)
-
-
-
Field Detail
-
ARGC_LIMIT
public static final int ARGC_LIMIT
Maximum number of allowed function or constructor arguments, to follow SpiderMonkey.- See Also:
- Constant Field Values
-
nestingOfFunction
protected int nestingOfFunction
-
inUseStrictDirective
protected boolean inUseStrictDirective
-
-
Constructor Detail
-
Parser
public Parser()
-
Parser
public Parser(CompilerEnvirons compilerEnv)
-
Parser
public Parser(CompilerEnvirons compilerEnv, ErrorReporter errorReporter)
-
-
Method Detail
-
eof
public boolean eof()
-
parse
public AstRoot parse(java.lang.String sourceString, java.lang.String sourceURI, int lineno)
Builds a parse tree from the given source string.- Returns:
- an
AstRootobject representing the parsed program. If the parse fails,nullwill be returned. (The parse failure will result in a call to theErrorReporterfromCompilerEnvirons.)
-
parse
@Deprecated public AstRoot parse(java.io.Reader sourceReader, java.lang.String sourceURI, int lineno) throws java.io.IOException
Deprecated.use parse(String, String, int) insteadBuilds a parse tree from the given sourcereader.- Throws:
java.io.IOException- if theReaderencounters an error- See Also:
parse(String,String,int)
-
checkActivationName
protected void checkActivationName(java.lang.String name, int token)
-
setRequiresActivation
protected void setRequiresActivation()
-
setIsGenerator
protected void setIsGenerator()
-
createName
protected Node createName(java.lang.String name)
-
createNumber
protected Node createNumber(double number)
-
createScopeNode
protected Scope createScopeNode(int token, int lineno)
Create a node that can be used to hold lexically scoped variable definitions (via let declarations).- Parameters:
token- the token of the node to createlineno- line number of source- Returns:
- the created node
-
checkMutableReference
protected void checkMutableReference(Node n)
-
setDefaultUseStrictDirective
public void setDefaultUseStrictDirective(boolean useStrict)
-
inUseStrictDirective
public boolean inUseStrictDirective()
-
-