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206 lines
8.8 KiB
206 lines
8.8 KiB
/****************************************************************************
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Copyright (c) 2022-2023 Xiamen Yaji Software Co., Ltd.
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http://www.cocos.com
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#pragma once
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#include "class.inl"
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#include "cocos/bindings/jswrapper/ValueArrayPool.h"
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namespace sebind {
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// finalizer callback
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template <typename T>
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void genericFinalizer(se::Object *obj) {
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se::PrivateObjectBase *privateObject = obj->getPrivateObject();
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using context_type = typename class_<T>::Context;
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if (privateObject == nullptr) {
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return;
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}
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auto *scriptEngine = se::ScriptEngine::getInstance();
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scriptEngine->_setGarbageCollecting(true);
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auto *self = reinterpret_cast<context_type *>(privateObject->finalizerData);
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auto *thisPtr = privateObject->get<T>();
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for (auto &fin : self->finalizeCallbacks) {
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fin->finalize(thisPtr);
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}
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scriptEngine->_setGarbageCollecting(false);
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}
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// function wrappers for v8
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template <typename T>
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void genericConstructor(const v8::FunctionCallbackInfo<v8::Value> &v8args) {
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using context_type = typename class_<T>::Context;
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v8::Isolate *isolate = v8args.GetIsolate();
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v8::HandleScope handleScope(isolate);
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int ctorInvokeTimes{0};
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bool constructed{false};
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bool needDeleteValueArray{false};
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se::ValueArray &args = se::gValueArrayPool.get(v8args.Length(), needDeleteValueArray);
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se::CallbackDepthGuard depthGuard{args, se::gValueArrayPool._depth, needDeleteValueArray};
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se::internal::jsToSeArgs(v8args, args);
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auto *self = reinterpret_cast<context_type *>(v8args.Data().IsEmpty() ? nullptr : v8args.Data().As<v8::External>()->Value());
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se::Object *thisObject = se::Object::_createJSObject(self->kls, v8args.This());
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if (!self->finalizeCallbacks.empty()) {
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auto *finalizer = &genericFinalizer<T>;
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thisObject->_setFinalizeCallback(finalizer);
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}
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se::State state(thisObject, args);
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assert(!self->constructors.empty());
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for (auto &ctor : self->constructors) {
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if (ctor->argCount == -1 || ctor->argCount == args.size()) {
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ctorInvokeTimes++;
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constructed = ctor->construct(state);
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if (constructed) break;
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}
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}
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if (ctorInvokeTimes == 0) {
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SE_LOGE("[ERROR] Failed match constructor for class %s, %d args, location: %s:%d\n", self->className.c_str(),
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static_cast<int>(args.size()), __FILE__, __LINE__);
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}
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if (!constructed) {
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SE_LOGE("[ERROR] Failed to invoke %s, location: %s:%d\n", "constructor", __FILE__, __LINE__);
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}
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assert(constructed); // construction failure is not allowed.
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if (!self->finalizeCallbacks.empty()) {
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state.thisObject()->getPrivateObject()->finalizerData = self;
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}
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se::Value propertyVal;
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if (thisObject->getProperty("_ctor", &propertyVal, true)) {
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propertyVal.toObject()->call(args, thisObject);
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}
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}
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// v8 property callback
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template <typename ContextType>
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void genericAccessorSet(const v8::FunctionCallbackInfo<v8::Value> &v8args) {
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auto *attr = reinterpret_cast<ContextType *>(v8args.Data().IsEmpty() ? nullptr : v8args.Data().As<v8::External>()->Value());
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assert(attr);
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v8::Isolate *isolate = v8args.GetIsolate();
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v8::HandleScope handleScope(isolate);
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bool ret = true;
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auto *thisObject = reinterpret_cast<se::Object *>(se::internal::getPrivate(isolate, v8args.This()));
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bool needDeleteValueArray{false};
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se::ValueArray &args = se::gValueArrayPool.get(1, needDeleteValueArray);
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se::CallbackDepthGuard depthGuard{args, se::gValueArrayPool._depth, needDeleteValueArray};
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se::Value &data{args[0]};
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se::internal::jsToSeValue(isolate, v8args[0], &data);
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se::State state(thisObject, args);
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ret = attr->set(state);
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if (!ret) {
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SE_LOGE("[ERROR] Failed to invoke set %s, location: %s:%d\n", attr->attrName.c_str(), __FILE__, __LINE__);
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}
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}
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template <typename ContextType>
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void genericAccessorGet(const v8::FunctionCallbackInfo<v8::Value> &v8args) {
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auto *attr = reinterpret_cast<ContextType *>(v8args.Data().IsEmpty() ? nullptr : v8args.Data().As<v8::External>()->Value());
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assert(attr);
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v8::Isolate *isolate = v8args.GetIsolate();
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v8::HandleScope handleScope(isolate);
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bool ret = true;
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auto *thisObject = reinterpret_cast<se::Object *>(se::internal::getPrivate(isolate, v8args.This()));
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se::State state(thisObject);
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ret = attr->get(state);
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if (!ret) {
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SE_LOGE("[ERROR] Failed to invoke %s, location: %s:%d\n", attr->attrName.c_str(), __FILE__, __LINE__);
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}
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se::internal::setReturnValue(state.rval(), v8args);
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}
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void genericFunction(const v8::FunctionCallbackInfo<v8::Value> &v8args);
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template <typename T>
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bool class_<T>::install(se::Object *nsObject) {
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constexpr auto *cstp = &genericConstructor<T>;
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assert(nsObject);
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_installed = true;
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if (_ctx->constructors.empty()) {
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if constexpr (std::is_default_constructible<T>::value) {
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constructor(); // add default constructor
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}
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}
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_ctx->kls = se::Class::create(_ctx->className, nsObject, _ctx->parentProto, cstp, _ctx);
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auto *getter = &genericAccessorGet<intl::InstanceAttributeBase>;
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auto *setter = &genericAccessorSet<intl::InstanceAttributeBase>;
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for (auto &attr : _ctx->properties) {
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_ctx->kls->defineProperty(std::get<0>(attr).c_str(), getter, setter, std::get<1>(attr).get());
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}
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auto *fieldGetter = &genericAccessorGet<intl::InstanceFieldBase>;
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auto *fieldSetter = &genericAccessorSet<intl::InstanceFieldBase>;
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for (auto &field : _ctx->fields) {
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_ctx->kls->defineProperty(std::get<0>(field).c_str(), fieldGetter, fieldSetter, std::get<1>(field).get());
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}
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// defineFunctions
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{
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ccstd::unordered_map<ccstd::string, ccstd::vector<intl::InstanceMethodBase *>> multimap;
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for (auto &method : _ctx->functions) {
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multimap[std::get<0>(method)].emplace_back(std::get<1>(method).get());
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}
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for (auto &method : multimap) {
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if (method.second.size() > 1) {
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auto *overloaded = ccnew intl::InstanceMethodOverloaded;
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overloaded->className = _ctx->className;
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overloaded->methodName = method.first;
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for (auto *method : method.second) {
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overloaded->functions.push_back(method);
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}
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_ctx->kls->defineFunction(method.first.c_str(), &genericFunction, overloaded);
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} else {
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_ctx->kls->defineFunction(method.first.c_str(), &genericFunction, method.second[0]);
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}
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}
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}
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// define static functions
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{
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ccstd::unordered_map<ccstd::string, ccstd::vector<intl::StaticMethodBase *>> multimap;
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for (auto &method : _ctx->staticFunctions) {
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multimap[std::get<0>(method)].emplace_back(std::get<1>(method).get());
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}
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for (auto &method : multimap) {
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if (method.second.size() > 1) {
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auto *overloaded = ccnew intl::StaticMethodOverloaded;
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overloaded->className = _ctx->className;
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overloaded->methodName = method.first;
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for (auto *method : method.second) {
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overloaded->functions.push_back(method);
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}
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_ctx->kls->defineStaticFunction(method.first.c_str(), &genericFunction, overloaded);
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} else {
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_ctx->kls->defineStaticFunction(method.first.c_str(), &genericFunction, method.second[0]);
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}
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}
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}
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for (auto &prop : _ctx->staticProperties) {
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_ctx->kls->defineStaticProperty(std::get<0>(prop).c_str(), fieldGetter, fieldSetter, std::get<1>(prop).get());
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}
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_ctx->kls->install();
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JSBClassType::registerClass<T>(_ctx->kls);
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return true;
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}
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} // namespace sebind
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