blob: 3a48d0c1005842a97bb9c868ae1240aef4a3bd95 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
// Copyright 2016 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.
(function(global, utils, extrasUtils) {
"use strict";
%CheckIsBootstrapping();
// -------------------------------------------------------------------
// Imports
var AsyncFunctionNext;
var AsyncFunctionThrow;
var GlobalPromise;
var NewPromiseCapability;
var PerformPromiseThen;
var PromiseCastResolved;
utils.Import(function(from) {
AsyncFunctionNext = from.AsyncFunctionNext;
AsyncFunctionThrow = from.AsyncFunctionThrow;
GlobalPromise = from.GlobalPromise;
NewPromiseCapability = from.NewPromiseCapability;
PromiseCastResolved = from.PromiseCastResolved;
PerformPromiseThen = from.PerformPromiseThen;
});
// -------------------------------------------------------------------
function AsyncFunctionAwait(generator, value) {
// Promise.resolve(value).then(
// value => AsyncFunctionNext(value),
// error => AsyncFunctionThrow(error)
// );
var promise = PromiseCastResolved(value);
var onFulfilled =
(sentValue) => %_Call(AsyncFunctionNext, generator, sentValue);
var onRejected =
(sentError) => %_Call(AsyncFunctionThrow, generator, sentError);
var throwawayCapability = NewPromiseCapability(GlobalPromise);
return PerformPromiseThen(promise, onFulfilled, onRejected,
throwawayCapability);
}
%InstallToContext([ "async_function_await", AsyncFunctionAwait ]);
})
|
