ParserATNFactory.java 文件源码

/** Build an atom with all possible values in its label. */

    @Override
    public Handle wildcard(GrammarAST node) {
        ATNState left = newState(node);
        ATNState right = newState(node);
        left.addTransition(new WildcardTransition(right));
        node.atnState = left;
        return new Handle(left, right);
    }