Examples of LexerCustomAction

org.antlr.v4.runtime.atn.LexerCustomAction

Executes a custom lexer action by calling {@link Recognizer#action} with therule and action indexes assigned to the custom action. The implementation of a custom action is added to the generated code for the lexer in an override of {@link Recognizer#action} when the grammar is compiled.

This class may represent embedded actions created with the {...} syntax in ANTLR 4, as well as actions created for lexer commands where the command argument could not be evaluated when the grammar was compiled.

@author Sam Harwell @since 4.2


  @Override
  public Handle action(ActionAST action) {
    int ruleIndex = currentRule.index;
    int actionIndex = g.lexerActions.get(action);
    LexerCustomAction lexerAction = new LexerCustomAction(ruleIndex, actionIndex);
    return action(action, lexerAction);
  }

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Examples of LexerCustomAction

Examples of org.antlr.v4.runtime.atn.LexerCustomAction