antlr-ng/dist/src/UndefChecker.js

Next generation ANTLR Tool

var __defProp = Object.defineProperty;
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
import { IntStream } from "antlr4ng";
import { Character } from "./support/Character.js";
import { IssueCode } from "./tool/Issues.js";
import { GrammarTreeVisitor } from "./tree/walkers/GrammarTreeVisitor.js";
class UndefChecker extends GrammarTreeVisitor {
  constructor(isLexer, ruleToAST, errorManager) {
    super(errorManager);
    this.isLexer = isLexer;
    this.ruleToAST = ruleToAST;
  }
  static {
    __name(this, "UndefChecker");
  }
  badRef = false;
  tokenRef(ref) {
    if (ref.getText() === "EOF") {
      return;
    }
    if (this.isLexer) {
      this.ruleRef(ref, null);
    }
  }
  ruleRef(ref, arg) {
    const ruleAST = this.ruleToAST.get(ref.getText());
    const fileName = ref.token?.inputStream?.getSourceName() ?? IntStream.UNKNOWN_SOURCE_NAME;
    if (Character.isUpperCase(this.currentRuleName.codePointAt(0)) && Character.isLowerCase(ref.getText().codePointAt(0))) {
      this.badRef = true;
      this.errorManager.grammarError(
        IssueCode.ParserRuleRefInLexerRule,
        fileName,
        ref.token,
        ref.getText(),
        this.currentRuleName
      );
    } else if (!ruleAST) {
      this.badRef = true;
      this.errorManager.grammarError(IssueCode.UndefinedRuleRef, fileName, ref.token, ref.getText());
    }
  }
}
export {
  UndefChecker
};