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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
|
/*
* Copyright (C) 2017 Yusuke Suzuki <utatane.tea@gmail.com>.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "IDLTypes.h"
#include "JSDOMConvertBase.h"
#include "JSDOMPromise.h"
// #include "WorkerGlobalScope.h"
namespace WebCore {
template<typename T> struct Converter<IDLPromise<T>> : DefaultConverter<IDLPromise<T>> {
using ReturnType = RefPtr<DOMPromise>;
// https://webidl.spec.whatwg.org/#es-promise
template<typename ExceptionThrower = DefaultExceptionThrower>
static ReturnType convert(JSC::JSGlobalObject& lexicalGlobalObject, JSC::JSValue value, ExceptionThrower&& exceptionThrower = ExceptionThrower())
{
JSC::VM& vm = JSC::getVM(&lexicalGlobalObject);
auto scope = DECLARE_THROW_SCOPE(vm);
auto* globalObject = JSC::jsDynamicCast<JSDOMGlobalObject*>(&lexicalGlobalObject);
if (!globalObject)
return nullptr;
// 1. Let resolve be the original value of %Promise%.resolve.
// 2. Let promise be the result of calling resolve with %Promise% as the this value and V as the single argument value.
auto* promise = JSC::JSPromise::resolvedPromise(globalObject, value);
if (scope.exception()) {
auto* scriptExecutionContext = globalObject->scriptExecutionContext();
// if (is<WorkerGlobalScope>(scriptExecutionContext)) {
// auto* scriptController = downcast<WorkerGlobalScope>(*scriptExecutionContext).script();
// bool terminatorCausedException = vm.isTerminationException(scope.exception());
// if (terminatorCausedException || (scriptController && scriptController->isTerminatingExecution())) {
// scriptController->forbidExecution();
// return nullptr;
// }
// }
exceptionThrower(lexicalGlobalObject, scope);
return nullptr;
}
ASSERT(promise);
// 3. Return the IDL promise type value that is a reference to the same object as promise.
return DOMPromise::create(*globalObject, *promise);
}
};
template<typename T> struct JSConverter<IDLPromise<T>> {
static constexpr bool needsState = true;
static constexpr bool needsGlobalObject = true;
static JSC::JSValue convert(JSC::JSGlobalObject&, JSDOMGlobalObject&, DOMPromise& promise)
{
return promise.promise();
}
template<template<typename> class U>
static JSC::JSValue convert(JSC::JSGlobalObject& lexicalGlobalObject, JSDOMGlobalObject& globalObject, U<T>& promiseProxy)
{
return promiseProxy.promise(lexicalGlobalObject, globalObject);
}
};
} // namespace WebCore
|
