src/v8/test/inspector/runtime/es6-module.js

// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

let {session, contextGroup, Protocol} = InspectorTest.start('Checks basic ES6 modules support.');

var module1 = `
export function foo() {
  console.log('module1');
  return 42;
}
export let a1 = 1`;

var module2 = `
export function foo() {
  console.log('module2');
  return 239;
}
export let a2 = 2`;

var module3 = `
import { foo as foo1 } from 'module1';
import { foo as foo2 } from 'module2';
// check that queryObjects works with JSModuleNamespace
import * as foo3 from 'module2';
console.log(foo1());
console.log(foo2());
import { a1 } from 'module1';
import { a2 } from 'module2';
debugger;
foo3;
`;

var module4 = '}';

(async function test() {
  session.setupScriptMap();
  // We get scriptParsed events for modules ..
  Protocol.Debugger.onScriptParsed(InspectorTest.logMessage);
  // .. scriptFailed to parse for modules with syntax error ..
  Protocol.Debugger.onScriptFailedToParse(InspectorTest.logMessage);
  // .. API messages from modules contain correct stack trace ..
  Protocol.Runtime.onConsoleAPICalled(message => {
    InspectorTest.log(`console.log(${message.params.args[0].value})`);
    session.logCallFrames(message.params.stackTrace.callFrames);
    InspectorTest.log('');
  });
  // .. we could break inside module and scope contains correct list of variables ..
  Protocol.Debugger.onPaused(message => {
    InspectorTest.logMessage(message);
    Protocol.Runtime.getProperties({ objectId: message.params.callFrames[0].scopeChain[0].object.objectId})
      .then(InspectorTest.logMessage)
      .then(() => Protocol.Debugger.resume());
  });

  // .. we process uncaught errors from modules correctly.
  Protocol.Runtime.onExceptionThrown(InspectorTest.logMessage);

  Protocol.Runtime.enable();
  await Protocol.Debugger.enable();
  await contextGroup.addModule(module1, 'module1');
  await contextGroup.addModule(module2, 'module2');
  await contextGroup.addModule(module3, 'module3');
  await contextGroup.addModule(module4, 'module4');
  await InspectorTest.waitForPendingTasks();

  Protocol.Debugger.onScriptParsed(null);
  Protocol.Runtime.evaluate({
    includeCommandLineAPI: true,
    expression: 'queryObjects(Function)'
  });
  const {params:{object:{objectId}}} = await Protocol.Runtime.onceInspectRequested();
  const {result:{objects}} = await Protocol.Runtime.queryObjects({
    prototypeObjectId: objectId
  });
  InspectorTest.log('queryObjects returns ' + objects.description.replace(/\d+/, 'N'));

  InspectorTest.completeTest();
})();