org.eclipse.xtext.generator.parser.antlr.ex.wsAware
Class SyntheticTerminalAwareFragmentHelper

java.lang.Object
  org.eclipse.xtext.generator.parser.antlr.ex.common.AntlrFragmentHelper
      org.eclipse.xtext.generator.parser.antlr.ex.wsAware.SyntheticTerminalAwareFragmentHelper

public class SyntheticTerminalAwareFragmentHelper
extends AntlrFragmentHelper

This fragment helper could be used to implement whitespace aware grammars.

Author:

Sebastian Zarnekow - Initial contribution and API

Constructor Summary

SyntheticTerminalAwareFragmentHelper(Naming naming)

Method Summary

boolean

isSyntheticTerminalRule(TerminalRule rule) Synthetic terminal rules are rules which will not lead to a real terminal rule in the generated lexer grammar but only provide the respective token types instead.

Methods inherited from class org.eclipse.xtext.generator.parser.antlr.ex.common.AntlrFragmentHelper

getAllAlternatives, getAllAssignments, getAllElementsByType, getAllGroups, getAllPredicatedElements, getAllUnorderedGroups, getAntlrTokenFileProviderClassName, getContentAssistLexerGrammarFileName, getContentAssistLexerSuperClass, getContentAssistParserClassName, getContentAssistParserGrammarFileName, getInternalContentAssistLexerClassName, getInternalContentAssistParserClassName, getInternalParserClassName, getLexerClassName, getLexerGrammarFileName, getLexerSuperClass, getParserClassName, getParserGrammarFileName

Methods inherited from class java.lang.Object

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

Constructor Detail

SyntheticTerminalAwareFragmentHelper

public SyntheticTerminalAwareFragmentHelper(Naming naming)

Method Detail

isSyntheticTerminalRule

public boolean isSyntheticTerminalRule(TerminalRule rule)

Synthetic terminal rules are rules which will not lead to a real terminal rule in the generated lexer grammar but only provide the respective token types instead.

This implementation answers true for any terminal rule that has a body in the form terminal MY_TERMINAL: 'synthetic:MY_TERMINAL';.

Overrides:

isSyntheticTerminalRule in class AntlrFragmentHelper

Returns:

true if this rule should not get an own lexer body.