blob: 37ddee82052ef0a81da269f1ccf83a04d745639a [file] [log] [blame]
// 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.
// Flags: --ignore-unhandled-promises
Debug = debug.Debug
var exception = null;
function listener(event, exec_state, event_data, data) {
if (event != Debug.DebugEvent.Exception) return;
try {
var line = exec_state.frame(0).sourceLineText();
var match = /Exception/.exec(line);
assertNotNull(match);
} catch (e) {
exception = e;
}
}
// Caught throw, events on any exception.
Debug.setListener(listener);
Debug.setBreakOnException();
var thenable = {
get then() {
throw new Error(); // Exception
}
};
class MyPromise extends Promise {
get then() {
throw new Error();
}
}
MyPromise.resolve(thenable);
var p = Promise.resolve(thenable);
async function foo() {
return thenable;
}
foo();
async function foo() {
await thenable;
}
foo();
async function foo() {
try {
await thenable;
} catch (e) {}
}
foo();
%PerformMicrotaskCheckpoint();
Debug.setListener(null);
Debug.clearBreakOnException();
assertNull(exception);