1berry/nodejs
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

src: move InternalMakeCallback and MakeCallback

Browse Source 
This commit moves InternalMakeCallback and MakeCallback into
callback_scope.cc. Since these are just wrappers on top of
`InternalCallbackScope`, this makes the implementations easier to find.

https://github.com/nodejs/node/pull/25299
PR-URL: https://github.com/nodejs/node/pull/25299
Reviewed-By: Gus Caplan <me@gus.host>
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: James M Snell <jasnell@gmail.com>
This commit is contained in:
Joyee Cheung 2018-12-31 23:35:07 +08:00 committed by Daniel Bevenius
parent b406c9c4e9
commit e54d11e2f6
2 changed files with 131 additions and 133 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

131
src/callback_scope.cc
View File

@ -5,11 +5,17 @@
namespace node {
using v8::Context;
using v8::EscapableHandleScope;
using v8::Function;
using v8::HandleScope;
using v8::Isolate;
using v8::Local;
using v8::MaybeLocal;
using v8::NewStringType;
using v8::Object;
using v8::String;
using v8::Value;
using AsyncHooks = Environment::AsyncHooks;
@ -126,4 +132,129 @@ void InternalCallbackScope::Close() {
}
}
MaybeLocal<Value> InternalMakeCallback(Environment* env,
Local<Object> recv,
const Local<Function> callback,
int argc,
Local<Value> argv[],
async_context asyncContext) {
CHECK(!recv.IsEmpty());
InternalCallbackScope scope(env, recv, asyncContext);
if (scope.Failed()) {
return MaybeLocal<Value>();
}
Local<Function> domain_cb = env->domain_callback();
MaybeLocal<Value> ret;
if (asyncContext.async_id != 0 || domain_cb.IsEmpty() || recv.IsEmpty()) {
ret = callback->Call(env->context(), recv, argc, argv);
} else {
std::vector<Local<Value>> args(1 + argc);
args[0] = callback;
std::copy(&argv[0], &argv[argc], args.begin() + 1);
ret = domain_cb->Call(env->context(), recv, args.size(), &args[0]);
}
if (ret.IsEmpty()) {
scope.MarkAsFailed();
return MaybeLocal<Value>();
}
scope.Close();
if (scope.Failed()) {
return MaybeLocal<Value>();
}
return ret;
}
// Public MakeCallback()s
MaybeLocal<Value> MakeCallback(Isolate* isolate,
Local<Object> recv,
const char* method,
int argc,
Local<Value> argv[],
async_context asyncContext) {
Local<String> method_string =
String::NewFromUtf8(isolate, method, NewStringType::kNormal)
.ToLocalChecked();
return MakeCallback(isolate, recv, method_string, argc, argv, asyncContext);
}
MaybeLocal<Value> MakeCallback(Isolate* isolate,
Local<Object> recv,
Local<String> symbol,
int argc,
Local<Value> argv[],
async_context asyncContext) {
Local<Value> callback_v =
recv->Get(isolate->GetCurrentContext(), symbol).ToLocalChecked();
if (callback_v.IsEmpty()) return Local<Value>();
if (!callback_v->IsFunction()) return Local<Value>();
Local<Function> callback = callback_v.As<Function>();
return MakeCallback(isolate, recv, callback, argc, argv, asyncContext);
}
MaybeLocal<Value> MakeCallback(Isolate* isolate,
Local<Object> recv,
Local<Function> callback,
int argc,
Local<Value> argv[],
async_context asyncContext) {
// Observe the following two subtleties:
//
// 1. The environment is retrieved from the callback function's context.
// 2. The context to enter is retrieved from the environment.
//
// Because of the AssignToContext() call in src/node_contextify.cc,
// the two contexts need not be the same.
Environment* env = Environment::GetCurrent(callback->CreationContext());
CHECK_NOT_NULL(env);
Context::Scope context_scope(env->context());
MaybeLocal<Value> ret =
InternalMakeCallback(env, recv, callback, argc, argv, asyncContext);
if (ret.IsEmpty() && env->makecallback_depth() == 0) {
// This is only for legacy compatiblity and we may want to look into
// removing/adjusting it.
return Undefined(env->isolate());
}
return ret;
}
// Legacy MakeCallback()s
Local<Value> MakeCallback(Isolate* isolate,
Local<Object> recv,
const char* method,
int argc,
Local<Value>* argv) {
EscapableHandleScope handle_scope(isolate);
return handle_scope.Escape(
MakeCallback(isolate, recv, method, argc, argv, {0, 0})
.FromMaybe(Local<Value>()));
}
Local<Value> MakeCallback(Isolate* isolate,
Local<Object> recv,
Local<String> symbol,
int argc,
Local<Value>* argv) {
EscapableHandleScope handle_scope(isolate);
return handle_scope.Escape(
MakeCallback(isolate, recv, symbol, argc, argv, {0, 0})
.FromMaybe(Local<Value>()));
}
Local<Value> MakeCallback(Isolate* isolate,
Local<Object> recv,
Local<Function> callback,
int argc,
Local<Value>* argv) {
EscapableHandleScope handle_scope(isolate);
return handle_scope.Escape(
MakeCallback(isolate, recv, callback, argc, argv, {0, 0})
.FromMaybe(Local<Value>()));
}
} // namespace node

133
src/node.cc
View File

@ -109,7 +109,6 @@ using v8::Array;
using v8::Boolean;
using v8::Context;
using v8::DEFAULT;
using v8::EscapableHandleScope;
using v8::Exception;
using v8::Function;
using v8::FunctionCallbackInfo;
@ -556,138 +555,6 @@ void RemoveEnvironmentCleanupHook(Isolate* isolate,
env->RemoveCleanupHook(fun, arg);
}
MaybeLocal<Value> InternalMakeCallback(Environment* env,
Local<Object> recv,
const Local<Function> callback,
int argc,
Local<Value> argv[],
async_context asyncContext) {
CHECK(!recv.IsEmpty());
InternalCallbackScope scope(env, recv, asyncContext);
if (scope.Failed()) {
return MaybeLocal<Value>();
}
Local<Function> domain_cb = env->domain_callback();
MaybeLocal<Value> ret;
if (asyncContext.async_id != 0 || domain_cb.IsEmpty() || recv.IsEmpty()) {
ret = callback->Call(env->context(), recv, argc, argv);
} else {
std::vector<Local<Value>> args(1 + argc);
args[0] = callback;
std::copy(&argv[0], &argv[argc], args.begin() + 1);
ret = domain_cb->Call(env->context(), recv, args.size(), &args[0]);
}
if (ret.IsEmpty()) {
scope.MarkAsFailed();
return MaybeLocal<Value>();
}
scope.Close();
if (scope.Failed()) {
return MaybeLocal<Value>();
}
return ret;
}
// Public MakeCallback()s
MaybeLocal<Value> MakeCallback(Isolate* isolate,
Local<Object> recv,
const char* method,
int argc,
Local<Value> argv[],
async_context asyncContext) {
Local<String> method_string =
String::NewFromUtf8(isolate, method, NewStringType::kNormal)
.ToLocalChecked();
return MakeCallback(isolate, recv, method_string, argc, argv, asyncContext);
}
MaybeLocal<Value> MakeCallback(Isolate* isolate,
Local<Object> recv,
Local<String> symbol,
int argc,
Local<Value> argv[],
async_context asyncContext) {
Local<Value> callback_v = recv->Get(isolate->GetCurrentContext(),
symbol).ToLocalChecked();
if (callback_v.IsEmpty()) return Local<Value>();
if (!callback_v->IsFunction()) return Local<Value>();
Local<Function> callback = callback_v.As<Function>();
return MakeCallback(isolate, recv, callback, argc, argv, asyncContext);
}
MaybeLocal<Value> MakeCallback(Isolate* isolate,
Local<Object> recv,
Local<Function> callback,
int argc,
Local<Value> argv[],
async_context asyncContext) {
// Observe the following two subtleties:
//
// 1. The environment is retrieved from the callback function's context.
// 2. The context to enter is retrieved from the environment.
//
// Because of the AssignToContext() call in src/node_contextify.cc,
// the two contexts need not be the same.
Environment* env = Environment::GetCurrent(callback->CreationContext());
CHECK_NOT_NULL(env);
Context::Scope context_scope(env->context());
MaybeLocal<Value> ret = InternalMakeCallback(env, recv, callback,
argc, argv, asyncContext);
if (ret.IsEmpty() && env->makecallback_depth() == 0) {
// This is only for legacy compatiblity and we may want to look into
// removing/adjusting it.
return Undefined(env->isolate());
}
return ret;
}
// Legacy MakeCallback()s
Local<Value> MakeCallback(Isolate* isolate,
Local<Object> recv,
const char* method,
int argc,
Local<Value>* argv) {
EscapableHandleScope handle_scope(isolate);
return handle_scope.Escape(
MakeCallback(isolate, recv, method, argc, argv, {0, 0})
.FromMaybe(Local<Value>()));
}
Local<Value> MakeCallback(Isolate* isolate,
Local<Object> recv,
Local<String> symbol,
int argc,
Local<Value>* argv) {
EscapableHandleScope handle_scope(isolate);
return handle_scope.Escape(
MakeCallback(isolate, recv, symbol, argc, argv, {0, 0})
.FromMaybe(Local<Value>()));
}
Local<Value> MakeCallback(Isolate* isolate,
Local<Object> recv,
Local<Function> callback,
int argc,
Local<Value>* argv) {
EscapableHandleScope handle_scope(isolate);
return handle_scope.Escape(
MakeCallback(isolate, recv, callback, argc, argv, {0, 0})
.FromMaybe(Local<Value>()));
}
static void WaitForInspectorDisconnect(Environment* env) {
#if HAVE_INSPECTOR
if (env->inspector_agent()->IsActive()) {