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
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
|
#include "node_internals.h"
#include "node_watchdog.h"
namespace node {
namespace util {
using v8::Array;
using v8::Context;
using v8::FunctionCallbackInfo;
using v8::Integer;
using v8::Local;
using v8::Maybe;
using v8::Object;
using v8::Private;
using v8::Promise;
using v8::Proxy;
using v8::String;
using v8::Value;
static void GetPromiseDetails(const FunctionCallbackInfo<Value>& args) {
// Return undefined if it's not a Promise.
if (!args[0]->IsPromise())
return;
auto isolate = args.GetIsolate();
Local<Promise> promise = args[0].As<Promise>();
Local<Array> ret = Array::New(isolate, 2);
int state = promise->State();
ret->Set(0, Integer::New(isolate, state));
if (state != Promise::PromiseState::kPending)
ret->Set(1, promise->Result());
args.GetReturnValue().Set(ret);
}
static void GetProxyDetails(const FunctionCallbackInfo<Value>& args) {
// Return undefined if it's not a proxy.
if (!args[0]->IsProxy())
return;
Local<Proxy> proxy = args[0].As<Proxy>();
Local<Array> ret = Array::New(args.GetIsolate(), 2);
ret->Set(0, proxy->GetTarget());
ret->Set(1, proxy->GetHandler());
args.GetReturnValue().Set(ret);
}
// Side effect-free stringification that will never throw exceptions.
static void SafeToString(const FunctionCallbackInfo<Value>& args) {
auto context = args.GetIsolate()->GetCurrentContext();
args.GetReturnValue().Set(args[0]->ToDetailString(context).ToLocalChecked());
}
inline Local<Private> IndexToPrivateSymbol(Environment* env, uint32_t index) {
#define V(name, _) &Environment::name,
static Local<Private> (Environment::*const methods[])() const = {
PER_ISOLATE_PRIVATE_SYMBOL_PROPERTIES(V)
};
#undef V
CHECK_LT(index, arraysize(methods));
return (env->*methods[index])();
}
static void GetHiddenValue(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
CHECK(args[0]->IsObject());
CHECK(args[1]->IsUint32());
Local<Object> obj = args[0].As<Object>();
auto index = args[1]->Uint32Value(env->context()).FromJust();
auto private_symbol = IndexToPrivateSymbol(env, index);
auto maybe_value = obj->GetPrivate(env->context(), private_symbol);
args.GetReturnValue().Set(maybe_value.ToLocalChecked());
}
static void SetHiddenValue(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
CHECK(args[0]->IsObject());
CHECK(args[1]->IsUint32());
Local<Object> obj = args[0].As<Object>();
auto index = args[1]->Uint32Value(env->context()).FromJust();
auto private_symbol = IndexToPrivateSymbol(env, index);
auto maybe_value = obj->SetPrivate(env->context(), private_symbol, args[2]);
args.GetReturnValue().Set(maybe_value.FromJust());
}
void StartSigintWatchdog(const FunctionCallbackInfo<Value>& args) {
int ret = SigintWatchdogHelper::GetInstance()->Start();
args.GetReturnValue().Set(ret == 0);
}
void StopSigintWatchdog(const FunctionCallbackInfo<Value>& args) {
bool had_pending_signals = SigintWatchdogHelper::GetInstance()->Stop();
args.GetReturnValue().Set(had_pending_signals);
}
void WatchdogHasPendingSigint(const FunctionCallbackInfo<Value>& args) {
bool ret = SigintWatchdogHelper::GetInstance()->HasPendingSignal();
args.GetReturnValue().Set(ret);
}
void CreatePromise(const FunctionCallbackInfo<Value>& args) {
Local<Context> context = args.GetIsolate()->GetCurrentContext();
auto maybe_resolver = Promise::Resolver::New(context);
if (!maybe_resolver.IsEmpty())
args.GetReturnValue().Set(maybe_resolver.ToLocalChecked());
}
void PromiseResolve(const FunctionCallbackInfo<Value>& args) {
Local<Context> context = args.GetIsolate()->GetCurrentContext();
Local<Value> promise = args[0];
CHECK(promise->IsPromise());
if (promise.As<Promise>()->State() != Promise::kPending) return;
Local<Promise::Resolver> resolver = promise.As<Promise::Resolver>(); // sic
Maybe<bool> ret = resolver->Resolve(context, args[1]);
args.GetReturnValue().Set(ret.FromMaybe(false));
}
void PromiseReject(const FunctionCallbackInfo<Value>& args) {
Local<Context> context = args.GetIsolate()->GetCurrentContext();
Local<Value> promise = args[0];
CHECK(promise->IsPromise());
if (promise.As<Promise>()->State() != Promise::kPending) return;
Local<Promise::Resolver> resolver = promise.As<Promise::Resolver>(); // sic
Maybe<bool> ret = resolver->Reject(context, args[1]);
args.GetReturnValue().Set(ret.FromMaybe(false));
}
void SafeGetenv(const FunctionCallbackInfo<Value>& args) {
CHECK(args[0]->IsString());
Utf8Value strenvtag(args.GetIsolate(), args[0]);
std::string text;
if (!node::SafeGetenv(*strenvtag, &text)) return;
args.GetReturnValue()
.Set(String::NewFromUtf8(
args.GetIsolate(), text.c_str(),
v8::NewStringType::kNormal).ToLocalChecked());
}
void Initialize(Local<Object> target,
Local<Value> unused,
Local<Context> context) {
Environment* env = Environment::GetCurrent(context);
#define V(name, _) \
target->Set(context, \
FIXED_ONE_BYTE_STRING(env->isolate(), #name), \
Integer::NewFromUnsigned(env->isolate(), index++)).FromJust();
{
uint32_t index = 0;
PER_ISOLATE_PRIVATE_SYMBOL_PROPERTIES(V)
}
#undef V
target->DefineOwnProperty(
env->context(),
OneByteString(env->isolate(), "pushValToArrayMax"),
Integer::NewFromUnsigned(env->isolate(), NODE_PUSH_VAL_TO_ARRAY_MAX),
v8::ReadOnly).FromJust();
#define V(name) \
target->Set(context, \
FIXED_ONE_BYTE_STRING(env->isolate(), #name), \
Integer::New(env->isolate(), Promise::PromiseState::name)) \
.FromJust()
V(kPending);
V(kFulfilled);
V(kRejected);
#undef V
env->SetMethod(target, "getHiddenValue", GetHiddenValue);
env->SetMethod(target, "setHiddenValue", SetHiddenValue);
env->SetMethod(target, "getPromiseDetails", GetPromiseDetails);
env->SetMethod(target, "getProxyDetails", GetProxyDetails);
env->SetMethod(target, "safeToString", SafeToString);
env->SetMethod(target, "startSigintWatchdog", StartSigintWatchdog);
env->SetMethod(target, "stopSigintWatchdog", StopSigintWatchdog);
env->SetMethod(target, "watchdogHasPendingSigint", WatchdogHasPendingSigint);
env->SetMethod(target, "createPromise", CreatePromise);
env->SetMethod(target, "promiseResolve", PromiseResolve);
env->SetMethod(target, "promiseReject", PromiseReject);
env->SetMethod(target, "safeGetenv", SafeGetenv);
}
} // namespace util
} // namespace node
NODE_BUILTIN_MODULE_CONTEXT_AWARE(util, node::util::Initialize)
|
