parser
Class DynamicParserFactory

java.lang.Object
  parser.DynamicParserFactory

All Implemented Interfaces:

ParserFactory

public class DynamicParserFactory
extends java.lang.Object
implements ParserFactory

This class takes a filename of a JavaCup-file and creates a Parser from it

Constructor Summary

DynamicParserFactory(java.lang.String filename)

Method Summary

static void	cleanup()
void	debug_parse()
boolean	errorsDuringParse() After parsing, the return value of this method will be valid.
java.lang.String	getDumpedAST() Returns the AST from the parse as dumped into a string.
Program	getResultAST()
void	parse() After setting the lexer, this parse() is the command to parse the stream coming from the lexer, debug_parse() does so in debug mode.
void	semant() Runs the semantic checker on the AST accessible by getResultAST().
void	setLexer(CoolTokenLexer lexer) This method is used to specify the input to the parser.

Methods inherited from class java.lang.Object

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

Constructor Detail

DynamicParserFactory

public DynamicParserFactory(java.lang.String filename)
                     throws java.lang.Exception

Parameters:

filename - -- JavaCup specification file

Throws:

java.lang.Exception

Method Detail

cleanup

public static void cleanup()

setLexer

public void setLexer(CoolTokenLexer lexer)

Description copied from interface: ParserFactory

This method is used to specify the input to the parser.

Specified by:

setLexer in interface ParserFactory

Parameters:

lexer - -- input to parser

parse

public void parse()
           throws java.lang.Exception

Description copied from interface: ParserFactory

After setting the lexer, this parse() is the command to parse the stream coming from the lexer, debug_parse() does so in debug mode.

Specified by:

parse in interface ParserFactory

Throws:

java.lang.Exception - -- if unrecoverable exception occured during parsing.

debug_parse

public void debug_parse()
                 throws java.lang.Exception

Specified by:

debug_parse in interface ParserFactory

Throws:

java.lang.Exception

errorsDuringParse

public boolean errorsDuringParse()

Description copied from interface: ParserFactory

After parsing, the return value of this method will be valid.

Specified by:

errorsDuringParse in interface ParserFactory

getResultAST

public Program getResultAST()

Specified by:

getResultAST in interface ParserFactory

semant

public void semant()
            throws SemanticError

Description copied from interface: ParserFactory

Runs the semantic checker on the AST accessible by getResultAST().

Specified by:

semant in interface ParserFactory

Throws:

SemanticError

getDumpedAST

public java.lang.String getDumpedAST()

Description copied from interface: ParserFactory

Returns the AST from the parse as dumped into a string.

Specified by:

getDumpedAST in interface ParserFactory