@stordata/grammars/src/parse.js

A collection of ANTLR grammars used at Stordata. This project exists so that we can package the grammars (and various utilities) as a CommonJS module. The `antlr4` Javascript runtime is only available as an ES module at the time of writing.

import { CommonTokenStream, InputStream } from 'antlr4';

import ThrowingErrorListener from './ThrowingErrorListener.js';

export default function parse(input, Lexer, Parser) {
  const parser = new Parser(
    new CommonTokenStream(
      new Lexer(
        new InputStream(input)
      )
    )
  );

  parser.removeErrorListeners(); // There's a default one
  parser.addErrorListener(new ThrowingErrorListener()); // Will throw on first error

  return parser.all(); // The "all" rule gotta exist!
}