1 /** 2 * Copyright (c) 2023-2025 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef PANDA_PLUGINS_ETS_RUNTIME_INTEROP_JS_JS_PROXY_JS_PROXY_H_ 17 #define PANDA_PLUGINS_ETS_RUNTIME_INTEROP_JS_JS_PROXY_JS_PROXY_H_ 18 19 #include "include/mem/panda_containers.h" 20 #include "runtime/include/class.h" 21 #include "runtime/include/method.h" 22 23 namespace ark::ets { 24 class EtsClass; 25 class EtsObject; 26 } // namespace ark::ets 27 28 namespace ark::ets::interop::js::js_proxy { 29 30 class JSProxy { 31 public: 32 static JSProxy *CreateBuiltinProxy(EtsClass *etsClass, Span<Method *> targetMethods); 33 static JSProxy *CreateFunctionProxy(EtsClass *functionInterface); 34 static JSProxy *CreateInterfaceProxy(const PandaSet<Class *> &interfaces, std::string &interfaceName); 35 GetProxyClass()36 EtsClass *GetProxyClass() const 37 { 38 return proxyKlass_; 39 } 40 IsProxyClass(Class * klass)41 static bool IsProxyClass(Class *klass) 42 { 43 // For class descriptor "Lname;" proxy descriptor is "L$name$;" 44 const uint8_t *descriptor = klass->GetDescriptor(); 45 Span<const uint8_t> desc(descriptor, utf::Mutf8Size(descriptor)); 46 return desc[0] == 'L' && desc[1] == '$' && desc[desc.size() - 1] == ';' && desc[desc.size() - 2U] == '$'; 47 } 48 49 ~JSProxy() = default; 50 51 NO_COPY_SEMANTIC(JSProxy); 52 NO_MOVE_SEMANTIC(JSProxy); 53 54 private: JSProxy(EtsClass * proxyKlass)55 explicit JSProxy(EtsClass *proxyKlass) : proxyKlass_(proxyKlass) {} 56 57 static JSProxy *CreateProxy(const uint8_t *descriptor, Class *baseClass, Span<Method *> targetMethods, 58 const PandaVector<Class *> &interfaces, void *callBridge); 59 EtsClass *const proxyKlass_ {}; 60 // NOTE(vpukhov): add flag if original class has final methods or public fields 61 // NOTE(vpukhov): must ensure compat-class methods except accessors do not access its private state 62 63 // Allocator calls our private ctor 64 friend class mem::Allocator; 65 }; 66 67 } // namespace ark::ets::interop::js::js_proxy 68 69 #endif // !PANDA_PLUGINS_ETS_RUNTIME_INTEROP_JS_JS_PROXY_JS_PROXY_H_ 70