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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
/* -*- 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 "gtest/gtest.h"
#include "js/TypeDecls.h"
#include "js/Value.h"
#include "mozilla/dom/Promise-inl.h"
#include "mozilla/dom/Promise.h"
#include "xpcpublic.h"
using namespace mozilla;
using namespace mozilla::dom;
struct TraceCounts {
int32_t mValue = 0;
int32_t mId = 0;
int32_t mObject = 0;
int32_t mWrapperCache = 0;
int32_t mTenuredHeapObject = 0;
int32_t mString = 0;
int32_t mScript = 0;
int32_t mFunction = 0;
};
struct DummyCallbacks final : public TraceCallbacks {
void Trace(JS::Heap<JS::Value>*, const char*, void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mValue++;
}
void Trace(JS::Heap<jsid>*, const char*, void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mId++;
}
void Trace(JS::Heap<JSObject*>*, const char*, void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mObject++;
}
void Trace(nsWrapperCache*, const char* aName,
void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mWrapperCache++;
}
void Trace(JS::TenuredHeap<JSObject*>*, const char*,
void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mTenuredHeapObject++;
}
void Trace(JS::Heap<JSString*>*, const char*, void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mString++;
}
void Trace(JS::Heap<JSScript*>*, const char*, void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mScript++;
}
void Trace(JS::Heap<JSFunction*>*, const char*,
void* aClosure) const override {
static_cast<TraceCounts*>(aClosure)->mFunction++;
}
};
TEST(NativeThenHandler, TraceValue)
{
auto onResolve = [](JSContext*, JS::Handle<JS::Value>, ErrorResult&,
JS::Handle<JS::Value>) -> already_AddRefed<Promise> {
return nullptr;
};
auto onReject = [](JSContext*, JS::Handle<JS::Value>, ErrorResult&,
JS::Handle<JS::Value>) -> already_AddRefed<Promise> {
return nullptr;
};
// Explicit type for backward compatibility with clang<7 / gcc<8
using HandlerType =
NativeThenHandler<decltype(onResolve), decltype(onReject), std::tuple<>,
std::tuple<JS::HandleValue>>;
RefPtr<HandlerType> handler = new HandlerType(
nullptr, Some(onResolve), Some(onReject), std::make_tuple(),
std::make_tuple(JS::UndefinedHandleValue));
TraceCounts counts;
NS_CYCLE_COLLECTION_PARTICIPANT(HandlerType)
->Trace(handler.get(), DummyCallbacks(), &counts);
EXPECT_EQ(counts.mValue, 1);
}
TEST(NativeThenHandler, TraceObject)
{
auto onResolve = [](JSContext*, JS::Handle<JS::Value>, ErrorResult&,
JS::Handle<JSObject*>) -> already_AddRefed<Promise> {
return nullptr;
};
auto onReject = [](JSContext*, JS::Handle<JS::Value>, ErrorResult&,
JS::Handle<JSObject*>) -> already_AddRefed<Promise> {
return nullptr;
};
AutoJSAPI jsapi;
MOZ_ALWAYS_TRUE(jsapi.Init(xpc::PrivilegedJunkScope()));
JSContext* cx = jsapi.cx();
JS::Rooted<JSObject*> obj(cx, JS_NewPlainObject(cx));
// Explicit type for backward compatibility with clang<7 / gcc<8
using HandlerType =
NativeThenHandler<decltype(onResolve), decltype(onReject), std::tuple<>,
std::tuple<JS::HandleObject>>;
RefPtr<HandlerType> handler = new HandlerType(
nullptr, Some(onResolve), Some(onReject), std::make_tuple(),
std::make_tuple(JS::HandleObject(obj)));
TraceCounts counts;
NS_CYCLE_COLLECTION_PARTICIPANT(HandlerType)
->Trace(handler.get(), DummyCallbacks(), &counts);
EXPECT_EQ(counts.mObject, 1);
}
TEST(NativeThenHandler, TraceMixed)
{
auto onResolve = [](JSContext*, JS::Handle<JS::Value>, ErrorResult&,
nsIGlobalObject*, Promise*, JS::Handle<JS::Value>,
JS::Handle<JSObject*>) -> already_AddRefed<Promise> {
return nullptr;
};
auto onReject = [](JSContext*, JS::Handle<JS::Value>, ErrorResult&,
nsIGlobalObject*, Promise*, JS::Handle<JS::Value>,
JS::Handle<JSObject*>) -> already_AddRefed<Promise> {
return nullptr;
};
AutoJSAPI jsapi;
MOZ_ALWAYS_TRUE(jsapi.Init(xpc::PrivilegedJunkScope()));
JSContext* cx = jsapi.cx();
nsCOMPtr<nsIGlobalObject> global = xpc::CurrentNativeGlobal(cx);
JS::Rooted<JSObject*> obj(cx, JS_NewPlainObject(cx));
RefPtr<Promise> promise = Promise::Create(global, IgnoreErrors());
// Explicit type for backward compatibility with clang<7 / gcc<8
using HandlerType =
NativeThenHandler<decltype(onResolve), decltype(onReject),
std::tuple<nsCOMPtr<nsIGlobalObject>, RefPtr<Promise>>,
std::tuple<JS::HandleValue, JS::HandleObject>>;
RefPtr<HandlerType> handler = new HandlerType(
nullptr, Some(onResolve), Some(onReject),
std::make_tuple(global, promise),
std::make_tuple(JS::UndefinedHandleValue, JS::HandleObject(obj)));
TraceCounts counts;
NS_CYCLE_COLLECTION_PARTICIPANT(HandlerType)
->Trace(handler.get(), DummyCallbacks(), &counts);
EXPECT_EQ(counts.mValue, 1);
EXPECT_EQ(counts.mObject, 1);
}
|
