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
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/dom/TestInterfaceAsyncIterableSingle.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/IterableIterator.h"
#include "mozilla/dom/Promise-inl.h"
#include "mozilla/dom/TestInterfaceJSMaplikeSetlikeIterableBinding.h"
#include "nsPIDOMWindow.h"
#include "nsThreadUtils.h"
namespace mozilla::dom {
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(TestInterfaceAsyncIterableSingle, mParent)
NS_IMPL_CYCLE_COLLECTING_ADDREF(TestInterfaceAsyncIterableSingle)
NS_IMPL_CYCLE_COLLECTING_RELEASE(TestInterfaceAsyncIterableSingle)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(TestInterfaceAsyncIterableSingle)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
TestInterfaceAsyncIterableSingle::TestInterfaceAsyncIterableSingle(
nsPIDOMWindowInner* aParent, bool aFailToInit)
: mParent(aParent), mFailToInit(aFailToInit) {}
// static
already_AddRefed<TestInterfaceAsyncIterableSingle>
TestInterfaceAsyncIterableSingle::Constructor(
const GlobalObject& aGlobal,
const TestInterfaceAsyncIterableSingleOptions& aOptions, ErrorResult& aRv) {
nsCOMPtr<nsPIDOMWindowInner> window =
do_QueryInterface(aGlobal.GetAsSupports());
if (!window) {
aRv.Throw(NS_ERROR_FAILURE);
return nullptr;
}
RefPtr<TestInterfaceAsyncIterableSingle> r =
new TestInterfaceAsyncIterableSingle(window, aOptions.mFailToInit);
return r.forget();
}
JSObject* TestInterfaceAsyncIterableSingle::WrapObject(
JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
return TestInterfaceAsyncIterableSingle_Binding::Wrap(aCx, this, aGivenProto);
}
nsPIDOMWindowInner* TestInterfaceAsyncIterableSingle::GetParentObject() const {
return mParent;
}
void TestInterfaceAsyncIterableSingle::InitAsyncIteratorData(
IteratorData& aData, Iterator::IteratorType aType, ErrorResult& aError) {
if (mFailToInit) {
aError.ThrowTypeError("Caller asked us to fail");
return;
}
// Nothing else to do.
MOZ_ASSERT(aData.mIndex == 0);
MOZ_ASSERT(aData.mMultiplier == 1);
}
already_AddRefed<Promise>
TestInterfaceAsyncIterableSingle::GetNextIterationResult(Iterator* aIterator,
ErrorResult& aRv) {
return GetNextIterationResult(aIterator, aIterator->Data(), aRv);
}
already_AddRefed<Promise>
TestInterfaceAsyncIterableSingle::GetNextIterationResult(
IterableIteratorBase* aIterator, IteratorData& aData, ErrorResult& aRv) {
RefPtr<Promise> promise = Promise::Create(mParent->AsGlobal(), aRv);
if (NS_WARN_IF(aRv.Failed())) {
return nullptr;
}
nsCOMPtr<nsIRunnable> callResolvePromise =
NewRunnableMethod<RefPtr<IterableIteratorBase>, IteratorData&,
RefPtr<Promise>>(
"TestInterfaceAsyncIterableSingle::GetNextIterationResult", this,
&TestInterfaceAsyncIterableSingle::ResolvePromise, aIterator, aData,
promise);
if (aData.mBlockingPromisesIndex < aData.mBlockingPromises.Length()) {
aData.mBlockingPromises[aData.mBlockingPromisesIndex]
->AddCallbacksWithCycleCollectedArgs(
[](JSContext* aCx, JS::Handle<JS::Value> aValue, ErrorResult& aRv,
nsIRunnable* aCallResolvePromise) {
NS_DispatchToMainThread(aCallResolvePromise);
},
[](JSContext* aCx, JS::Handle<JS::Value> aValue, ErrorResult& aRv,
nsIRunnable* aCallResolvePromise) {},
std::move(callResolvePromise));
++aData.mBlockingPromisesIndex;
} else {
NS_DispatchToMainThread(callResolvePromise);
}
return promise.forget();
}
void TestInterfaceAsyncIterableSingle::ResolvePromise(
IterableIteratorBase* aIterator, IteratorData& aData, Promise* aPromise) {
if (aData.mIndex >= 10) {
iterator_utils::ResolvePromiseForFinished(aPromise);
} else {
aPromise->MaybeResolve(int32_t(aData.mIndex * 9 % 7 * aData.mMultiplier));
aData.mIndex++;
}
}
void TestInterfaceAsyncIterableSingle::IteratorData::Traverse(
nsCycleCollectionTraversalCallback& cb) {
TestInterfaceAsyncIterableSingle::IteratorData* tmp = this;
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mBlockingPromises);
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mThrowFromReturn);
}
void TestInterfaceAsyncIterableSingle::IteratorData::Unlink() {
TestInterfaceAsyncIterableSingle::IteratorData* tmp = this;
NS_IMPL_CYCLE_COLLECTION_UNLINK(mBlockingPromises);
NS_IMPL_CYCLE_COLLECTION_UNLINK(mThrowFromReturn);
}
} // namespace mozilla::dom
|
