antlr-ng/dist/src/tool/ast/RuleAST.js

Next generation ANTLR Tool

var __defProp = Object.defineProperty;
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
import { ANTLRv4Parser } from "../../generated/ANTLRv4Parser.js";
import { isTokenName } from "../../support/helpers.js";
import { GrammarASTWithOptions } from "./GrammarASTWithOptions.js";
class RuleAST extends GrammarASTWithOptions {
  static {
    __name(this, "RuleAST");
  }
  astType = "RuleAST";
  constructor(nodeOrTokenOrType) {
    if (typeof nodeOrTokenOrType === "number") {
      super(nodeOrTokenOrType);
    } else {
      super(nodeOrTokenOrType);
    }
  }
  isLexerRule() {
    const name = this.getRuleName();
    return name !== null && isTokenName(name);
  }
  getRuleName() {
    const nameNode = this.children[0];
    return nameNode?.getText() ?? null;
  }
  dupNode() {
    return new RuleAST(this);
  }
  getLexerAction() {
    const blk = this.getFirstChildWithType(ANTLRv4Parser.LPAREN);
    if (blk?.children.length === 1) {
      const onlyAlt = blk.children[0];
      const lastChild = onlyAlt.children[onlyAlt.children.length - 1];
      if (lastChild.getType() === ANTLRv4Parser.RBRACE) {
        return lastChild;
      }
    }
    return null;
  }
  visit(v) {
    return v.visit(this);
  }
}
export {
  RuleAST
};