text: // 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.
  
  // Test that asynchronous features do not work with
  // side-effect free debug-evaluate.
  
  Debug = debug.Debug
  
  var exception = null;
  
  function* generator() {
    yield 1;
  }
  
  async function async() {
    return 1;
  }
  
  var g = generator();
  
  var p = new Promise(() => {});
  
  function listener(event, exec_state, event_data, data) {
    if (event != Debug.DebugEvent.Break) return;
    try {
      function fail(source) {
        assertThrows(() => exec_state.frame(0).evaluate(source, true),
                     EvalError);
      }
      fail("new Promise()");
      fail("generator()");
      fail("g.next()");
      fail("async()");
      fail("Promise.resolve()");
      fail("Promise.reject()");
      fail("p.then(() => {})");
      fail("p.catch(() => {})");
      fail("p.finally(() => {})");
      fail("Promise.all([p, p])");
      fail("Promise.race([p, p])");
      fail("(async function() {})()");
      fail("(async function() { await 1; })()");
    } catch (e) {
      exception = e;
      print(e, e.stack);
    };
  };
  
  // Add the debug event listener.
  Debug.setListener(listener);
  
  function f() {
    debugger;
  };
  
  f();
  
  assertNull(exception);
  