gnu.ecmascript

Class Parser

java.lang.Object

gnu.ecmascript.Parser

public class Parser
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static Expression[]	emptyArgs
static Expression	eofExpr
int	errors

Constructor Summary

Constructors

Constructor and Description
Parser(gnu.kawa.io.InPort port)

Method Summary

Modifier and Type	Method and Description
Expression	buildLoop(Expression init, Expression test, Expression incr, Expression body)
java.lang.String	getIdentifier()
void	getSemicolon() Skip an explicit or implicit semicolon.
java.lang.Object	getToken()
static void	main(java.lang.String[] args)
Expression	makeCallExpression(Expression exp, Expression[] args)
Expression	makeNewExpression(Expression exp, Expression[] args)
Expression	makePropertyAccessor(Expression exp, Expression prop)
Expression[]	parseArguments()
Expression	parseAssignmentExpression()
Expression	parseBinaryExpression(int prio)
Expression	parseBlock()
Expression	parseConditionalExpression()
Expression	parseExpression()
Expression	parseFunctionDefinition()
Expression	parseIfStatement()
Expression	parseLeftHandSideExpression()
Expression	parsePostfixExpression()
Expression	parsePrimaryExpression()
Expression	parseStatement()
Expression	parseUnaryExpression()
Expression	parseWhileStatement()
java.lang.Object	peekToken() Return the next non-whitespace token from the lexer.
java.lang.Object	peekTokenOrLine() Return the next token from the lexer.
void	skipToken()
Expression	syntaxError(java.lang.String message)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

eofExpr

public static Expression eofExpr

emptyArgs

public static final Expression[] emptyArgs

errors

public int errors

Constructor Detail

Parser

public Parser(gnu.kawa.io.InPort port)

Method Detail

parseConditionalExpression

public Expression parseConditionalExpression()
                                      throws java.io.IOException,
                                             SyntaxException

Throws:

java.io.IOException

SyntaxException

parseAssignmentExpression

public Expression parseAssignmentExpression()
                                     throws java.io.IOException,
                                            SyntaxException

Throws:

java.io.IOException

SyntaxException

parseExpression

public Expression parseExpression()
                           throws java.io.IOException,
                                  SyntaxException

Throws:

java.io.IOException

SyntaxException

peekTokenOrLine

public java.lang.Object peekTokenOrLine()
                                 throws java.io.IOException,
                                        SyntaxException

Return the next token from the lexer. A LineTerminator is considered a token.

Throws:

java.io.IOException

SyntaxException

peekToken

public java.lang.Object peekToken()
                           throws java.io.IOException,
                                  SyntaxException

Return the next non-whitespace token from the lexer. LineTerminators are skipped until a non-eolToken is found.

Throws:

java.io.IOException

SyntaxException

getToken

public java.lang.Object getToken()
                          throws java.io.IOException,
                                 SyntaxException

Throws:

java.io.IOException

SyntaxException

skipToken

public final void skipToken()

getSemicolon

public void getSemicolon()
                  throws java.io.IOException,
                         SyntaxException

Skip an explicit or implicit semicolon.

Throws:

java.io.IOException

SyntaxException

parsePrimaryExpression

public Expression parsePrimaryExpression()
                                  throws java.io.IOException,
                                         SyntaxException

Throws:

java.io.IOException

SyntaxException

makePropertyAccessor

public Expression makePropertyAccessor(Expression exp,
                                       Expression prop)

parseArguments

public Expression[] parseArguments()
                            throws java.io.IOException,
                                   SyntaxException

Throws:

java.io.IOException

SyntaxException

makeNewExpression

public Expression makeNewExpression(Expression exp,
                                    Expression[] args)

makeCallExpression

public Expression makeCallExpression(Expression exp,
                                     Expression[] args)

getIdentifier

public java.lang.String getIdentifier()
                               throws java.io.IOException,
                                      SyntaxException

Throws:

java.io.IOException

SyntaxException

parseLeftHandSideExpression

public Expression parseLeftHandSideExpression()
                                       throws java.io.IOException,
                                              SyntaxException

Throws:

java.io.IOException

SyntaxException

parsePostfixExpression

public Expression parsePostfixExpression()
                                  throws java.io.IOException,
                                         SyntaxException

Throws:

java.io.IOException

SyntaxException

parseUnaryExpression

public Expression parseUnaryExpression()
                                throws java.io.IOException,
                                       SyntaxException

Throws:

java.io.IOException

SyntaxException

syntaxError

public Expression syntaxError(java.lang.String message)

parseBinaryExpression

public Expression parseBinaryExpression(int prio)
                                 throws java.io.IOException,
                                        SyntaxException

Throws:

java.io.IOException

SyntaxException

parseIfStatement

public Expression parseIfStatement()
                            throws java.io.IOException,
                                   SyntaxException

Throws:

java.io.IOException

SyntaxException

buildLoop

public Expression buildLoop(Expression init,
                            Expression test,
                            Expression incr,
                            Expression body)

parseWhileStatement

public Expression parseWhileStatement()
                               throws java.io.IOException,
                                      SyntaxException

Throws:

java.io.IOException

SyntaxException

parseFunctionDefinition

public Expression parseFunctionDefinition()
                                   throws java.io.IOException,
                                          SyntaxException

Throws:

java.io.IOException

SyntaxException

parseBlock

public Expression parseBlock()
                      throws java.io.IOException,
                             SyntaxException

Throws:

java.io.IOException

SyntaxException

parseStatement

public Expression parseStatement()
                          throws java.io.IOException,
                                 SyntaxException

Throws:

java.io.IOException

SyntaxException

main

public static void main(java.lang.String[] args)