Function load

test/fixtures/es-module-loaders/hooks-input.mjs:58–94

(url, context, next)

}

export async function load(url, context, next) {
  loadCalls++;
  const source = await readFile(fileURLToPath(url));
  let format;

  if (loadCalls === 1) {
    assert.match(url, /json-modules\.mjs$/);
    assert.deepStrictEqual(context.importAttributes, {});
    format = 'module';
  } else if (loadCalls === 2) {
    assert.match(url, /experimental\.json$/);
    assert.deepStrictEqual(context.importAttributes, {
      type: 'json',
    });
    format = 'json';
  }

  assert.ok(new URL(url));
  // Ensure `context` has all and only the properties it's supposed to
  assert.deepStrictEqual(Reflect.ownKeys(context), [
    'format',
    'importAttributes',
    'importAssertions',
  ]);
  assert.strictEqual(context.format, 'test');
  assert.strictEqual(typeof next, 'function');

  const returnValue = {
    source,
    format,
    shortCircuit: true,
  };

  writeSync(1, JSON.stringify(returnValue) + '\n'); // For the test to validate when it parses stdout

  return returnValue;
}