88c8361b8f
This patch removes Promise functions and methods which are absent from the ES2015 specification when the --es-staging flag is on. The patch is being relanded after being reverted due to an unrelated bug. This version is slightly different as promise_chain is installed on the context regardless of the flag value, so that the Promise::Chain API continues to work until it is deprecated. BUG=v8:3237 R=rossberg LOG=Y Review URL: https://codereview.chromium.org/1513873002 Cr-Commit-Position: refs/heads/master@{#32772}
75 lines
1.8 KiB
JavaScript
75 lines
1.8 KiB
JavaScript
// Copyright 2014 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: --expose-debug-as debug --allow-natives-syntax --promise-extra
|
|
|
|
// Test debug events when a Promise is rejected, which is caught by a custom
|
|
// promise, which has undefined for reject closure. We expect an Exception
|
|
// debug even calling the (undefined) custom rejected closure.
|
|
|
|
Debug = debug.Debug;
|
|
|
|
var expected_events = 1;
|
|
var log = [];
|
|
|
|
var p = new Promise(function(resolve, reject) {
|
|
log.push("resolve");
|
|
resolve();
|
|
});
|
|
|
|
function MyPromise(resolver) {
|
|
var reject = undefined;
|
|
var resolve = function() { };
|
|
log.push("construct");
|
|
resolver(resolve, reject);
|
|
};
|
|
|
|
MyPromise.prototype = new Promise(function() {});
|
|
p.constructor = MyPromise;
|
|
|
|
var q = p.chain(
|
|
function() {
|
|
log.push("reject caught");
|
|
return Promise.reject(new Error("caught"));
|
|
});
|
|
|
|
function listener(event, exec_state, event_data, data) {
|
|
try {
|
|
if (event == Debug.DebugEvent.Exception) {
|
|
expected_events--;
|
|
assertTrue(expected_events >= 0);
|
|
assertEquals("caught", event_data.exception().message);
|
|
// All of the frames on the stack are from native Javascript.
|
|
assertEquals(0, exec_state.frameCount());
|
|
}
|
|
} catch (e) {
|
|
%AbortJS(e + "\n" + e.stack);
|
|
}
|
|
}
|
|
|
|
Debug.setBreakOnUncaughtException();
|
|
Debug.setListener(listener);
|
|
|
|
function testDone(iteration) {
|
|
function checkResult() {
|
|
try {
|
|
assertTrue(iteration < 10);
|
|
if (expected_events === 0) {
|
|
assertEquals(["resolve", "construct", "end main", "reject caught"],
|
|
log);
|
|
} else {
|
|
testDone(iteration + 1);
|
|
}
|
|
} catch (e) {
|
|
%AbortJS(e + "\n" + e.stack);
|
|
}
|
|
}
|
|
|
|
%EnqueueMicrotask(checkResult);
|
|
}
|
|
|
|
testDone(0);
|
|
|
|
log.push("end main");
|