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node_util.cc
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141 lines (106 loc) · 4.68 KB
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#include "node.h"
#include "node_watchdog.h"
#include "v8.h"
#include "env-inl.h"
namespace node {
namespace util {
using v8::Array;
using v8::Context;
using v8::FunctionCallbackInfo;
using v8::Local;
using v8::Object;
using v8::Private;
using v8::Proxy;
using v8::String;
using v8::Value;
#define VALUE_METHOD_MAP(V) \
V(isArrayBuffer, IsArrayBuffer) \
V(isDataView, IsDataView) \
V(isDate, IsDate) \
V(isMap, IsMap) \
V(isMapIterator, IsMapIterator) \
V(isPromise, IsPromise) \
V(isRegExp, IsRegExp) \
V(isSet, IsSet) \
V(isSetIterator, IsSetIterator) \
V(isSharedArrayBuffer, IsSharedArrayBuffer) \
V(isTypedArray, IsTypedArray)
#define V(_, ucname) \
static void ucname(const FunctionCallbackInfo<Value>& args) { \
CHECK_EQ(1, args.Length()); \
args.GetReturnValue().Set(args[0]->ucname()); \
}
VALUE_METHOD_MAP(V)
#undef V
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());
}
static void GetHiddenValue(const FunctionCallbackInfo<Value>& args) {
Environment* env = Environment::GetCurrent(args);
if (!args[0]->IsObject())
return env->ThrowTypeError("obj must be an object");
if (!args[1]->IsString())
return env->ThrowTypeError("name must be a string");
Local<Object> obj = args[0].As<Object>();
Local<String> name = args[1].As<String>();
auto private_symbol = Private::ForApi(env->isolate(), name);
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);
if (!args[0]->IsObject())
return env->ThrowTypeError("obj must be an object");
if (!args[1]->IsString())
return env->ThrowTypeError("name must be a string");
Local<Object> obj = args[0].As<Object>();
Local<String> name = args[1].As<String>();
auto private_symbol = Private::ForApi(env->isolate(), name);
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();
if (ret != 0) {
Environment* env = Environment::GetCurrent(args);
env->ThrowErrnoException(ret, "StartSigintWatchdog");
}
}
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 Initialize(Local<Object> target,
Local<Value> unused,
Local<Context> context) {
Environment* env = Environment::GetCurrent(context);
#define V(lcname, ucname) env->SetMethod(target, #lcname, ucname);
VALUE_METHOD_MAP(V)
#undef V
env->SetMethod(target, "getHiddenValue", GetHiddenValue);
env->SetMethod(target, "setHiddenValue", SetHiddenValue);
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);
}
} // namespace util
} // namespace node
NODE_MODULE_CONTEXT_AWARE_BUILTIN(util, node::util::Initialize)