Package antlr

Interface ToolErrorHandler

All Known Implementing Classes:

DefaultToolErrorHandler

interface ToolErrorHandler

Method Summary

Modifier and Type	Method	Description
void	warnAltAmbiguity(Grammar grammar, AlternativeBlock blk, boolean lexicalAnalysis, int depth, Lookahead[] sets, int altIdx1, int altIdx2)	Issue a warning about ambiguity between a alternates
void	warnAltExitAmbiguity(Grammar grammar, BlockWithImpliedExitPath blk, boolean lexicalAnalysis, int depth, Lookahead[] sets, int altIdx)	Issue a warning about ambiguity between an alternate and exit path.

Method Details

warnAltAmbiguity

void warnAltAmbiguity(Grammar grammar,
 AlternativeBlock blk,
 boolean lexicalAnalysis,
 int depth,
 Lookahead[] sets,
 int altIdx1,
 int altIdx2)

Issue a warning about ambiguity between a alternates

Parameters:

blk - The block being analyzed

lexicalAnalysis - true for lexical rule

depth - The depth of the ambiguity

sets - An array of bitsets containing the ambiguities

altIdx1 - The zero-based index of the first ambiguous alternative

altIdx2 - The zero-based index of the second ambiguous alternative

warnAltExitAmbiguity

void warnAltExitAmbiguity(Grammar grammar,
 BlockWithImpliedExitPath blk,
 boolean lexicalAnalysis,
 int depth,
 Lookahead[] sets,
 int altIdx)

Issue a warning about ambiguity between an alternate and exit path.

Parameters:

blk - The block being analyzed

lexicalAnalysis - true for lexical rule

depth - The depth of the ambiguity

sets - An array of bitsets containing the ambiguities

altIdx - The zero-based index of the ambiguous alternative