1 /* 2 * Copyright (c) 2021 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 #ifndef USCRIPT_INTERPRETER_H 16 #define USCRIPT_INTERPRETER_H 17 18 #include "script_context.h" 19 #include "script_expression.h" 20 #include "script_function.h" 21 #include "script_manager_impl.h" 22 #include "script_param.h" 23 #include "script_statement.h" 24 25 #define INTERPRETER_LOGE(inter, context, format, ...) \ 26 Logger(Updater::INFO, (__FILE_NAME__), (__LINE__), \ 27 "[INTERPRETER %d-%d]"#format, (inter).GetInstanceId(), (context)->GetContextId(), ##__VA_ARGS__) 28 #define INTERPRETER_LOGI(inter, context, format, ...) \ 29 Logger(Updater::INFO, (__FILE_NAME__), (__LINE__), \ 30 "[INTERPRETER %d-%d]"#format, (inter).GetInstanceId(), (context)->GetContextId(), ##__VA_ARGS__) 31 32 namespace Uscript { 33 class Parser; 34 class Scanner; 35 class ScriptManagerImpl; 36 37 class ScriptInterpreter { 38 public: 39 static int32_t ExecuteScript(ScriptManagerImpl *manager, Hpackage::PkgManager::StreamPtr pkgStream); 40 41 explicit ScriptInterpreter(ScriptManagerImpl *manager); 42 ~ScriptInterpreter(); 43 44 void AddStatement(UScriptStatement *statement); 45 int32_t AddFunction(ScriptFunction *function); 46 bool IsNativeFunction(std::string name); 47 UScriptValuePtr ExecuteNativeFunc(UScriptContextPtr upContext, const std::string &name, 48 ScriptParams *params); 49 UScriptValuePtr ExecuteFunction(UScriptContextPtr context, const std::string &name, 50 ScriptParams *params); 51 UScriptValuePtr FindVariable(UScriptContextPtr local, std::string id); 52 UScriptValuePtr UpdateVariable(UScriptContextPtr local, std::string id, UScriptValuePtr var); GetInstanceId()53 int32_t GetInstanceId() const 54 { 55 return instanceId_; 56 } 57 ContextPush(UScriptContextPtr context)58 void ContextPush(UScriptContextPtr context) 59 { 60 contextStack_.push_back(context); 61 } ContextPop()62 void ContextPop() 63 { 64 contextStack_.pop_back(); 65 } 66 67 private: 68 int32_t LoadScript(Hpackage::PkgManager::StreamPtr pkgStream); 69 int32_t Execute(); 70 71 private: 72 ScriptFunction* FindFunction(const std::string &name); 73 UScriptStatementList* statements_ = nullptr; 74 std::map<std::string, ScriptFunction*> functions_; 75 std::vector<UScriptContextPtr> contextStack_; 76 ScriptManagerImpl* scriptManager_ = nullptr; 77 std::unique_ptr<Parser> parser_; 78 std::unique_ptr<Scanner> scanner_; 79 int32_t instanceId_ = 0; 80 }; 81 } // namespace Uscript 82 #endif 83