antlr

Interface ToolErrorHandler

All Known Implementing Classes:

DefaultToolErrorHandler

interface ToolErrorHandler

Method Summary

Modifier and Type	Method and 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 Detail

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