| // This file was GENERATED by command: |
| // pump.py mozjs_callback_function.h.pump |
| // DO NOT EDIT BY HAND!!! |
| |
| // Copyright 2016 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // clang-format off |
| |
| #ifndef COBALT_SCRIPT_MOZJS_45_MOZJS_CALLBACK_FUNCTION_H_ |
| #define COBALT_SCRIPT_MOZJS_45_MOZJS_CALLBACK_FUNCTION_H_ |
| |
| #include "base/logging.h" |
| #include "cobalt/script/callback_function.h" |
| #include "cobalt/script/mozjs-45/conversion_helpers.h" |
| #include "cobalt/script/mozjs-45/convert_callback_return_value.h" |
| #include "cobalt/script/mozjs-45/util/exception_helpers.h" |
| #include "cobalt/script/mozjs-45/util/stack_trace_helpers.h" |
| #include "cobalt/script/mozjs-45/weak_heap_object.h" |
| #include "nb/memory_scope.h" |
| #include "third_party/mozjs-45/js/src/jsapi.h" |
| #include "third_party/mozjs-45/js/src/jscntxt.h" |
| |
| namespace cobalt { |
| namespace script { |
| namespace mozjs { |
| |
| // First, we forward declare the Callback class template. This informs the |
| // compiler that the template only has 1 type parameter which is the base |
| // CallbackFunction template class with parameters. |
| // |
| // See base/callback.h.pump for further discussion on this pattern. |
| template <typename Sig> |
| class MozjsCallbackFunction; |
| |
| template <typename R> |
| class MozjsCallbackFunction<R(void)> |
| : public CallbackFunction<R(void)> { |
| public: |
| typedef CallbackFunction<R()> BaseType; |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleObject function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(JS_ObjectIsFunction(context_, function)); |
| } |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleValue function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(function.isObject()); |
| DCHECK(JS_ObjectIsFunction(context_, function.toObjectOrNull())); |
| } |
| |
| CallbackResult<R> Run() |
| const OVERRIDE { |
| ENABLE_JS_STACK_TRACE_IN_SCOPE(context_); |
| TRACK_MEMORY_SCOPE("Javascript"); |
| TRACE_EVENT0("cobalt::script::mozjs", "MozjsCallbackFunction::Run"); |
| CallbackResult<R> callback_result; |
| JSAutoRequest auto_request(context_); |
| JS::RootedObject function(context_, weak_function_.GetObject()); |
| if (!function) { |
| DLOG(WARNING) << "Function was garbage collected."; |
| callback_result.exception = true; |
| return callback_result; |
| } |
| |
| JSAutoCompartment auto_compartment(context_, function); |
| JS::AutoSaveExceptionState auto_save_exception_state(context_); |
| |
| // https://www.w3.org/TR/WebIDL/#es-invoking-callback-functions |
| // Callback 'this' is set to null, unless overridden by other specifications |
| JS::RootedValue this_value(context_, JS::NullValue()); |
| JS::RootedValue return_value(context_); |
| const int kNumArguments = 0; |
| JS::AutoValueVector args(context_); |
| bool call_result = JS::Call(context_, this_value, function, args, |
| &return_value); |
| if (!call_result) { |
| DLOG(WARNING) << "Exception in callback: " |
| << util::GetExceptionString(context_); |
| callback_result.exception = true; |
| } else { |
| callback_result = ConvertCallbackReturnValue<R>(context_, return_value); |
| } |
| return callback_result; |
| } |
| |
| JSObject* handle() const { return weak_function_.GetObject(); } |
| const JS::Value& value() const { return weak_function_.GetValue(); } |
| bool WasCollected() const { return weak_function_.WasCollected(); } |
| |
| private: |
| JSContext* context_; |
| WeakHeapObject weak_function_; |
| }; |
| |
| template <typename R, typename A1> |
| class MozjsCallbackFunction<R(A1)> |
| : public CallbackFunction<R(A1)> { |
| public: |
| typedef CallbackFunction<R(A1)> BaseType; |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleObject function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(JS_ObjectIsFunction(context_, function)); |
| } |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleValue function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(function.isObject()); |
| DCHECK(JS_ObjectIsFunction(context_, function.toObjectOrNull())); |
| } |
| |
| CallbackResult<R> Run( |
| typename base::internal::CallbackParamTraits<A1>::ForwardType a1) |
| const OVERRIDE { |
| ENABLE_JS_STACK_TRACE_IN_SCOPE(context_); |
| TRACK_MEMORY_SCOPE("Javascript"); |
| TRACE_EVENT0("cobalt::script::mozjs", "MozjsCallbackFunction::Run"); |
| CallbackResult<R> callback_result; |
| JSAutoRequest auto_request(context_); |
| JS::RootedObject function(context_, weak_function_.GetObject()); |
| if (!function) { |
| DLOG(WARNING) << "Function was garbage collected."; |
| callback_result.exception = true; |
| return callback_result; |
| } |
| |
| JSAutoCompartment auto_compartment(context_, function); |
| JS::AutoSaveExceptionState auto_save_exception_state(context_); |
| |
| // https://www.w3.org/TR/WebIDL/#es-invoking-callback-functions |
| // Callback 'this' is set to null, unless overridden by other specifications |
| JS::RootedValue this_value(context_, JS::NullValue()); |
| JS::RootedValue return_value(context_); |
| const int kNumArguments = 1; |
| JS::AutoValueArray<1> args(context_); |
| ToJSValue(context_, a1, args[0]); |
| |
| bool call_result = JS::Call(context_, this_value, function, args, |
| &return_value); |
| if (!call_result) { |
| DLOG(WARNING) << "Exception in callback: " |
| << util::GetExceptionString(context_); |
| callback_result.exception = true; |
| } else { |
| callback_result = ConvertCallbackReturnValue<R>(context_, return_value); |
| } |
| return callback_result; |
| } |
| |
| JSObject* handle() const { return weak_function_.GetObject(); } |
| const JS::Value& value() const { return weak_function_.GetValue(); } |
| bool WasCollected() const { return weak_function_.WasCollected(); } |
| |
| private: |
| JSContext* context_; |
| WeakHeapObject weak_function_; |
| }; |
| |
| template <typename R, typename A1, typename A2> |
| class MozjsCallbackFunction<R(A1, A2)> |
| : public CallbackFunction<R(A1, A2)> { |
| public: |
| typedef CallbackFunction<R(A1, A2)> BaseType; |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleObject function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(JS_ObjectIsFunction(context_, function)); |
| } |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleValue function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(function.isObject()); |
| DCHECK(JS_ObjectIsFunction(context_, function.toObjectOrNull())); |
| } |
| |
| CallbackResult<R> Run( |
| typename base::internal::CallbackParamTraits<A1>::ForwardType a1, |
| typename base::internal::CallbackParamTraits<A2>::ForwardType a2) |
| const OVERRIDE { |
| ENABLE_JS_STACK_TRACE_IN_SCOPE(context_); |
| TRACK_MEMORY_SCOPE("Javascript"); |
| TRACE_EVENT0("cobalt::script::mozjs", "MozjsCallbackFunction::Run"); |
| CallbackResult<R> callback_result; |
| JSAutoRequest auto_request(context_); |
| JS::RootedObject function(context_, weak_function_.GetObject()); |
| if (!function) { |
| DLOG(WARNING) << "Function was garbage collected."; |
| callback_result.exception = true; |
| return callback_result; |
| } |
| |
| JSAutoCompartment auto_compartment(context_, function); |
| JS::AutoSaveExceptionState auto_save_exception_state(context_); |
| |
| // https://www.w3.org/TR/WebIDL/#es-invoking-callback-functions |
| // Callback 'this' is set to null, unless overridden by other specifications |
| JS::RootedValue this_value(context_, JS::NullValue()); |
| JS::RootedValue return_value(context_); |
| const int kNumArguments = 2; |
| JS::AutoValueArray<2> args(context_); |
| ToJSValue(context_, a1, args[0]); |
| ToJSValue(context_, a2, args[1]); |
| |
| bool call_result = JS::Call(context_, this_value, function, args, |
| &return_value); |
| if (!call_result) { |
| DLOG(WARNING) << "Exception in callback: " |
| << util::GetExceptionString(context_); |
| callback_result.exception = true; |
| } else { |
| callback_result = ConvertCallbackReturnValue<R>(context_, return_value); |
| } |
| return callback_result; |
| } |
| |
| JSObject* handle() const { return weak_function_.GetObject(); } |
| const JS::Value& value() const { return weak_function_.GetValue(); } |
| bool WasCollected() const { return weak_function_.WasCollected(); } |
| |
| private: |
| JSContext* context_; |
| WeakHeapObject weak_function_; |
| }; |
| |
| template <typename R, typename A1, typename A2, typename A3> |
| class MozjsCallbackFunction<R(A1, A2, A3)> |
| : public CallbackFunction<R(A1, A2, A3)> { |
| public: |
| typedef CallbackFunction<R(A1, A2, A3)> BaseType; |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleObject function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(JS_ObjectIsFunction(context_, function)); |
| } |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleValue function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(function.isObject()); |
| DCHECK(JS_ObjectIsFunction(context_, function.toObjectOrNull())); |
| } |
| |
| CallbackResult<R> Run( |
| typename base::internal::CallbackParamTraits<A1>::ForwardType a1, |
| typename base::internal::CallbackParamTraits<A2>::ForwardType a2, |
| typename base::internal::CallbackParamTraits<A3>::ForwardType a3) |
| const OVERRIDE { |
| ENABLE_JS_STACK_TRACE_IN_SCOPE(context_); |
| TRACK_MEMORY_SCOPE("Javascript"); |
| TRACE_EVENT0("cobalt::script::mozjs", "MozjsCallbackFunction::Run"); |
| CallbackResult<R> callback_result; |
| JSAutoRequest auto_request(context_); |
| JS::RootedObject function(context_, weak_function_.GetObject()); |
| if (!function) { |
| DLOG(WARNING) << "Function was garbage collected."; |
| callback_result.exception = true; |
| return callback_result; |
| } |
| |
| JSAutoCompartment auto_compartment(context_, function); |
| JS::AutoSaveExceptionState auto_save_exception_state(context_); |
| |
| // https://www.w3.org/TR/WebIDL/#es-invoking-callback-functions |
| // Callback 'this' is set to null, unless overridden by other specifications |
| JS::RootedValue this_value(context_, JS::NullValue()); |
| JS::RootedValue return_value(context_); |
| const int kNumArguments = 3; |
| JS::AutoValueArray<3> args(context_); |
| ToJSValue(context_, a1, args[0]); |
| ToJSValue(context_, a2, args[1]); |
| ToJSValue(context_, a3, args[2]); |
| |
| bool call_result = JS::Call(context_, this_value, function, args, |
| &return_value); |
| if (!call_result) { |
| DLOG(WARNING) << "Exception in callback: " |
| << util::GetExceptionString(context_); |
| callback_result.exception = true; |
| } else { |
| callback_result = ConvertCallbackReturnValue<R>(context_, return_value); |
| } |
| return callback_result; |
| } |
| |
| JSObject* handle() const { return weak_function_.GetObject(); } |
| const JS::Value& value() const { return weak_function_.GetValue(); } |
| bool WasCollected() const { return weak_function_.WasCollected(); } |
| |
| private: |
| JSContext* context_; |
| WeakHeapObject weak_function_; |
| }; |
| |
| template <typename R, typename A1, typename A2, typename A3, typename A4> |
| class MozjsCallbackFunction<R(A1, A2, A3, A4)> |
| : public CallbackFunction<R(A1, A2, A3, A4)> { |
| public: |
| typedef CallbackFunction<R(A1, A2, A3, A4)> BaseType; |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleObject function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(JS_ObjectIsFunction(context_, function)); |
| } |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleValue function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(function.isObject()); |
| DCHECK(JS_ObjectIsFunction(context_, function.toObjectOrNull())); |
| } |
| |
| CallbackResult<R> Run( |
| typename base::internal::CallbackParamTraits<A1>::ForwardType a1, |
| typename base::internal::CallbackParamTraits<A2>::ForwardType a2, |
| typename base::internal::CallbackParamTraits<A3>::ForwardType a3, |
| typename base::internal::CallbackParamTraits<A4>::ForwardType a4) |
| const OVERRIDE { |
| ENABLE_JS_STACK_TRACE_IN_SCOPE(context_); |
| TRACK_MEMORY_SCOPE("Javascript"); |
| TRACE_EVENT0("cobalt::script::mozjs", "MozjsCallbackFunction::Run"); |
| CallbackResult<R> callback_result; |
| JSAutoRequest auto_request(context_); |
| JS::RootedObject function(context_, weak_function_.GetObject()); |
| if (!function) { |
| DLOG(WARNING) << "Function was garbage collected."; |
| callback_result.exception = true; |
| return callback_result; |
| } |
| |
| JSAutoCompartment auto_compartment(context_, function); |
| JS::AutoSaveExceptionState auto_save_exception_state(context_); |
| |
| // https://www.w3.org/TR/WebIDL/#es-invoking-callback-functions |
| // Callback 'this' is set to null, unless overridden by other specifications |
| JS::RootedValue this_value(context_, JS::NullValue()); |
| JS::RootedValue return_value(context_); |
| const int kNumArguments = 4; |
| JS::AutoValueArray<4> args(context_); |
| ToJSValue(context_, a1, args[0]); |
| ToJSValue(context_, a2, args[1]); |
| ToJSValue(context_, a3, args[2]); |
| ToJSValue(context_, a4, args[3]); |
| |
| bool call_result = JS::Call(context_, this_value, function, args, |
| &return_value); |
| if (!call_result) { |
| DLOG(WARNING) << "Exception in callback: " |
| << util::GetExceptionString(context_); |
| callback_result.exception = true; |
| } else { |
| callback_result = ConvertCallbackReturnValue<R>(context_, return_value); |
| } |
| return callback_result; |
| } |
| |
| JSObject* handle() const { return weak_function_.GetObject(); } |
| const JS::Value& value() const { return weak_function_.GetValue(); } |
| bool WasCollected() const { return weak_function_.WasCollected(); } |
| |
| private: |
| JSContext* context_; |
| WeakHeapObject weak_function_; |
| }; |
| |
| template <typename R, typename A1, typename A2, typename A3, typename A4, |
| typename A5> |
| class MozjsCallbackFunction<R(A1, A2, A3, A4, A5)> |
| : public CallbackFunction<R(A1, A2, A3, A4, A5)> { |
| public: |
| typedef CallbackFunction<R(A1, A2, A3, A4, A5)> BaseType; |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleObject function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(JS_ObjectIsFunction(context_, function)); |
| } |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleValue function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(function.isObject()); |
| DCHECK(JS_ObjectIsFunction(context_, function.toObjectOrNull())); |
| } |
| |
| CallbackResult<R> Run( |
| typename base::internal::CallbackParamTraits<A1>::ForwardType a1, |
| typename base::internal::CallbackParamTraits<A2>::ForwardType a2, |
| typename base::internal::CallbackParamTraits<A3>::ForwardType a3, |
| typename base::internal::CallbackParamTraits<A4>::ForwardType a4, |
| typename base::internal::CallbackParamTraits<A5>::ForwardType a5) |
| const OVERRIDE { |
| ENABLE_JS_STACK_TRACE_IN_SCOPE(context_); |
| TRACK_MEMORY_SCOPE("Javascript"); |
| TRACE_EVENT0("cobalt::script::mozjs", "MozjsCallbackFunction::Run"); |
| CallbackResult<R> callback_result; |
| JSAutoRequest auto_request(context_); |
| JS::RootedObject function(context_, weak_function_.GetObject()); |
| if (!function) { |
| DLOG(WARNING) << "Function was garbage collected."; |
| callback_result.exception = true; |
| return callback_result; |
| } |
| |
| JSAutoCompartment auto_compartment(context_, function); |
| JS::AutoSaveExceptionState auto_save_exception_state(context_); |
| |
| // https://www.w3.org/TR/WebIDL/#es-invoking-callback-functions |
| // Callback 'this' is set to null, unless overridden by other specifications |
| JS::RootedValue this_value(context_, JS::NullValue()); |
| JS::RootedValue return_value(context_); |
| const int kNumArguments = 5; |
| JS::AutoValueArray<5> args(context_); |
| ToJSValue(context_, a1, args[0]); |
| ToJSValue(context_, a2, args[1]); |
| ToJSValue(context_, a3, args[2]); |
| ToJSValue(context_, a4, args[3]); |
| ToJSValue(context_, a5, args[4]); |
| |
| bool call_result = JS::Call(context_, this_value, function, args, |
| &return_value); |
| if (!call_result) { |
| DLOG(WARNING) << "Exception in callback: " |
| << util::GetExceptionString(context_); |
| callback_result.exception = true; |
| } else { |
| callback_result = ConvertCallbackReturnValue<R>(context_, return_value); |
| } |
| return callback_result; |
| } |
| |
| JSObject* handle() const { return weak_function_.GetObject(); } |
| const JS::Value& value() const { return weak_function_.GetValue(); } |
| bool WasCollected() const { return weak_function_.WasCollected(); } |
| |
| private: |
| JSContext* context_; |
| WeakHeapObject weak_function_; |
| }; |
| |
| template <typename R, typename A1, typename A2, typename A3, typename A4, |
| typename A5, typename A6> |
| class MozjsCallbackFunction<R(A1, A2, A3, A4, A5, A6)> |
| : public CallbackFunction<R(A1, A2, A3, A4, A5, A6)> { |
| public: |
| typedef CallbackFunction<R(A1, A2, A3, A4, A5, A6)> BaseType; |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleObject function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(JS_ObjectIsFunction(context_, function)); |
| } |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleValue function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(function.isObject()); |
| DCHECK(JS_ObjectIsFunction(context_, function.toObjectOrNull())); |
| } |
| |
| CallbackResult<R> Run( |
| typename base::internal::CallbackParamTraits<A1>::ForwardType a1, |
| typename base::internal::CallbackParamTraits<A2>::ForwardType a2, |
| typename base::internal::CallbackParamTraits<A3>::ForwardType a3, |
| typename base::internal::CallbackParamTraits<A4>::ForwardType a4, |
| typename base::internal::CallbackParamTraits<A5>::ForwardType a5, |
| typename base::internal::CallbackParamTraits<A6>::ForwardType a6) |
| const OVERRIDE { |
| ENABLE_JS_STACK_TRACE_IN_SCOPE(context_); |
| TRACK_MEMORY_SCOPE("Javascript"); |
| TRACE_EVENT0("cobalt::script::mozjs", "MozjsCallbackFunction::Run"); |
| CallbackResult<R> callback_result; |
| JSAutoRequest auto_request(context_); |
| JS::RootedObject function(context_, weak_function_.GetObject()); |
| if (!function) { |
| DLOG(WARNING) << "Function was garbage collected."; |
| callback_result.exception = true; |
| return callback_result; |
| } |
| |
| JSAutoCompartment auto_compartment(context_, function); |
| JS::AutoSaveExceptionState auto_save_exception_state(context_); |
| |
| // https://www.w3.org/TR/WebIDL/#es-invoking-callback-functions |
| // Callback 'this' is set to null, unless overridden by other specifications |
| JS::RootedValue this_value(context_, JS::NullValue()); |
| JS::RootedValue return_value(context_); |
| const int kNumArguments = 6; |
| JS::AutoValueArray<6> args(context_); |
| ToJSValue(context_, a1, args[0]); |
| ToJSValue(context_, a2, args[1]); |
| ToJSValue(context_, a3, args[2]); |
| ToJSValue(context_, a4, args[3]); |
| ToJSValue(context_, a5, args[4]); |
| ToJSValue(context_, a6, args[5]); |
| |
| bool call_result = JS::Call(context_, this_value, function, args, |
| &return_value); |
| if (!call_result) { |
| DLOG(WARNING) << "Exception in callback: " |
| << util::GetExceptionString(context_); |
| callback_result.exception = true; |
| } else { |
| callback_result = ConvertCallbackReturnValue<R>(context_, return_value); |
| } |
| return callback_result; |
| } |
| |
| JSObject* handle() const { return weak_function_.GetObject(); } |
| const JS::Value& value() const { return weak_function_.GetValue(); } |
| bool WasCollected() const { return weak_function_.WasCollected(); } |
| |
| private: |
| JSContext* context_; |
| WeakHeapObject weak_function_; |
| }; |
| |
| template <typename R, typename A1, typename A2, typename A3, typename A4, |
| typename A5, typename A6, typename A7> |
| class MozjsCallbackFunction<R(A1, A2, A3, A4, A5, A6, A7)> |
| : public CallbackFunction<R(A1, A2, A3, A4, A5, A6, A7)> { |
| public: |
| typedef CallbackFunction<R(A1, A2, A3, A4, A5, A6, A7)> BaseType; |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleObject function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(JS_ObjectIsFunction(context_, function)); |
| } |
| |
| explicit MozjsCallbackFunction(JSContext* context, JS::HandleValue function) |
| : context_(context), weak_function_(context, function) { |
| DCHECK(context_); |
| DCHECK(function.isObject()); |
| DCHECK(JS_ObjectIsFunction(context_, function.toObjectOrNull())); |
| } |
| |
| CallbackResult<R> Run( |
| typename base::internal::CallbackParamTraits<A1>::ForwardType a1, |
| typename base::internal::CallbackParamTraits<A2>::ForwardType a2, |
| typename base::internal::CallbackParamTraits<A3>::ForwardType a3, |
| typename base::internal::CallbackParamTraits<A4>::ForwardType a4, |
| typename base::internal::CallbackParamTraits<A5>::ForwardType a5, |
| typename base::internal::CallbackParamTraits<A6>::ForwardType a6, |
| typename base::internal::CallbackParamTraits<A7>::ForwardType a7) |
| const OVERRIDE { |
| ENABLE_JS_STACK_TRACE_IN_SCOPE(context_); |
| TRACK_MEMORY_SCOPE("Javascript"); |
| TRACE_EVENT0("cobalt::script::mozjs", "MozjsCallbackFunction::Run"); |
| CallbackResult<R> callback_result; |
| JSAutoRequest auto_request(context_); |
| JS::RootedObject function(context_, weak_function_.GetObject()); |
| if (!function) { |
| DLOG(WARNING) << "Function was garbage collected."; |
| callback_result.exception = true; |
| return callback_result; |
| } |
| |
| JSAutoCompartment auto_compartment(context_, function); |
| JS::AutoSaveExceptionState auto_save_exception_state(context_); |
| |
| // https://www.w3.org/TR/WebIDL/#es-invoking-callback-functions |
| // Callback 'this' is set to null, unless overridden by other specifications |
| JS::RootedValue this_value(context_, JS::NullValue()); |
| JS::RootedValue return_value(context_); |
| const int kNumArguments = 7; |
| JS::AutoValueArray<7> args(context_); |
| ToJSValue(context_, a1, args[0]); |
| ToJSValue(context_, a2, args[1]); |
| ToJSValue(context_, a3, args[2]); |
| ToJSValue(context_, a4, args[3]); |
| ToJSValue(context_, a5, args[4]); |
| ToJSValue(context_, a6, args[5]); |
| ToJSValue(context_, a7, args[6]); |
| |
| bool call_result = JS::Call(context_, this_value, function, args, |
| &return_value); |
| if (!call_result) { |
| DLOG(WARNING) << "Exception in callback: " |
| << util::GetExceptionString(context_); |
| callback_result.exception = true; |
| } else { |
| callback_result = ConvertCallbackReturnValue<R>(context_, return_value); |
| } |
| return callback_result; |
| } |
| |
| JSObject* handle() const { return weak_function_.GetObject(); } |
| const JS::Value& value() const { return weak_function_.GetValue(); } |
| bool WasCollected() const { return weak_function_.WasCollected(); } |
| |
| private: |
| JSContext* context_; |
| WeakHeapObject weak_function_; |
| }; |
| |
| template <typename Signature> |
| struct TypeTraits<CallbackFunction<Signature> > { |
| typedef MozjsUserObjectHolder<MozjsCallbackFunction<Signature> > |
| ConversionType; |
| typedef const ScriptValue<CallbackFunction<Signature> >* ReturnType; |
| }; |
| |
| } // namespace mozjs |
| } // namespace script |
| } // namespace cobalt |
| |
| #endif // COBALT_SCRIPT_MOZJS_45_MOZJS_CALLBACK_FUNCTION_H_ |
