1 /** 2 * Copyright (c) 2021-2022 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 ES2PANDA_COMPILER_FUNCTION_GENERATOR_FUNCTION_BUILDER_H 17 #define ES2PANDA_COMPILER_FUNCTION_GENERATOR_FUNCTION_BUILDER_H 18 19 #include <ir/irnode.h> 20 #include <compiler/function/functionBuilder.h> 21 22 namespace panda::es2panda::ir { 23 class YieldExpression; 24 } // namespace panda::es2panda::ir 25 26 namespace panda::es2panda::compiler { 27 28 class PandaGen; 29 30 enum class GeneratorState { 31 UNDEFINED = 0, 32 SUSPENDED_START, 33 SUSPENDED_YIELD, 34 EXECUTING, 35 COMPLETED, 36 AWAITING_RETURN, 37 }; 38 39 class GeneratorFunctionBuilder : public FunctionBuilder { 40 public: GeneratorFunctionBuilder(PandaGen * pg,CatchTable * catchTable)41 explicit GeneratorFunctionBuilder(PandaGen *pg, CatchTable *catchTable) : FunctionBuilder(pg, catchTable) {} 42 43 ~GeneratorFunctionBuilder() override = default; 44 NO_COPY_SEMANTIC(GeneratorFunctionBuilder); 45 NO_MOVE_SEMANTIC(GeneratorFunctionBuilder); 46 47 void Prepare(const ir::ScriptFunction *node) override; 48 void CleanUp(const ir::ScriptFunction *node) const override; 49 50 void DirectReturn(const ir::AstNode *node) const override; 51 void ImplicitReturn(const ir::AstNode *node) const override; 52 void ExplicitReturn(const ir::AstNode *node) const override; 53 54 void Yield(const ir::AstNode *node) override; 55 56 protected: BuilderKind()57 BuilderType BuilderKind() const override 58 { 59 return BuilderType::GENERATOR; 60 } 61 }; 62 63 } // namespace panda::es2panda::compiler 64 65 #endif 66