solidity-antlr4/dist/parser/parse.js

Solidity Lang Lexer and Parser by official ANTLR4 grammar

import { SolidityASTBuilder } from "../ast/builder.js";
import { SolidityParser, SolidityLexer, CommonTokenStream, CharStreams } from "../antlr4/index.js";
import { ParseError, SolidityErrorListener } from "./error-listener.js";
export const defaultParseOption = {
  tolerant: false,
  selector: (p) => p.sourceUnit()
};
export const parse = (source, _options) => {
  let syntaxTree;
  const options = Object.assign({}, defaultParseOption, _options);
  const listener = new SolidityErrorListener();
  try {
    const input = CharStreams.fromString(source);
    const lexer = new SolidityLexer(input);
    const token = new CommonTokenStream(lexer);
    const parser = new SolidityParser(token);
    parser.removeErrorListeners();
    parser.addErrorListener(listener);
    const visitor = new SolidityASTBuilder();
    const parseTree = options.selector(parser);
    syntaxTree = parseTree.accept(visitor);
  } catch (error) {
    if (error instanceof ParseError) {
    } else {
      listener.errors.push(new ParseError(error.message || "unknown error"));
    }
  }
  if (!options.tolerant)
    listener.throws();
  return syntaxTree;
};