GrammarParserInterpreter.java 文件源码

public GrammarParserInterpreter(Grammar g, ATN atn, TokenStream input) {
    super(g.fileName, g.getVocabulary(),
          Arrays.asList(g.getRuleNames()),
          atn, // must run ATN through serializer to set some state flags
          input);
    this.g = g;
    decisionStatesThatSetOuterAltNumInContext = findOuterMostDecisionStates();
    stateToAltsMap = new int[g.atn.states.size()][];
}