ParserDebuggerReferenceAnchorsParserTask.java 文件源码

@Override
protected void visitState(ATNState p) {
    super.visitState(p);

    if (p.getNumberOfTransitions() > 1) {
        return;
    }

    Transition transition = p.transition(0);
    if (transition instanceof RuleTransition) {
        // rule transition created a new context
        associatedTransitions.put(_ctx, transition);
    }
    else if (!p.onlyHasEpsilonTransitions()) {
        // match transition created a new terminal or error node
        associatedTransitions.put(_ctx.getChild(_ctx.getChildCount() - 1), transition);
    }
}