test-repo/src/parser-flow.js

"use strict";

const createError = require("./parser-create-error");

function parse(text) {
  // Inline the require to avoid loading all the JS if we don't use it
  const flowParser = require("flow-parser");

  const ast = flowParser.parse(text, {
    esproposal_class_instance_fields: true,
    esproposal_class_static_fields: true,
    esproposal_export_star_as: true
  });

  if (ast.errors.length > 0) {
    throw createError(
      ast.errors[0].message,
      ast.errors[0].loc.start.line,
      ast.errors[0].loc.start.column + 1
    );
  }

  return ast;
}

module.exports = parse;