1 /* 2 * Copyright (c) 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 ECMASCRIPT_TOOLING_BACKEND_JS_PT_EXTRACTOR_H 17 #define ECMASCRIPT_TOOLING_BACKEND_JS_PT_EXTRACTOR_H 18 19 #include "ecmascript/debugger/js_debugger_interface.h" 20 #include "ecmascript/debugger/js_pt_method.h" 21 #include "ecmascript/js_thread.h" 22 #include "ecmascript/jspandafile/debug_info_extractor.h" 23 24 #include "libpandabase/macros.h" 25 26 namespace panda::ecmascript::tooling { 27 using panda::panda_file::File; 28 29 class SingleStepper { 30 public: 31 enum class Type { STEP_INTO, STEP_OVER, STEP_OUT }; SingleStepper(const EcmaVM * ecmaVm,std::unique_ptr<PtMethod> ptMethod,std::list<JSPtStepRange> stepRanges,Type type)32 SingleStepper(const EcmaVM *ecmaVm, std::unique_ptr<PtMethod> ptMethod, 33 std::list<JSPtStepRange> stepRanges, Type type) 34 : ecmaVm_(ecmaVm), 35 method_(std::move(ptMethod)), 36 stepRanges_(std::move(stepRanges)), 37 stackDepth_(GetStackDepth()), 38 type_(type) {} 39 40 virtual ~SingleStepper() = default; 41 NO_COPY_SEMANTIC(SingleStepper); 42 NO_MOVE_SEMANTIC(SingleStepper); 43 44 bool StepComplete(uint32_t bcOffset) const; GetStepperType()45 Type GetStepperType() const 46 { 47 return type_; 48 } 49 50 static std::unique_ptr<SingleStepper> GetStepIntoStepper(const EcmaVM *ecmaVm); 51 static std::unique_ptr<SingleStepper> GetStepOverStepper(const EcmaVM *ecmaVm); 52 static std::unique_ptr<SingleStepper> GetStepOutStepper(const EcmaVM *ecmaVm); 53 54 private: 55 uint32_t GetStackDepth() const; 56 bool InStepRange(uint32_t pc) const; 57 static std::list<JSPtStepRange> GetStepRanges(DebugInfoExtractor *extractor, 58 File::EntityId methodId, uint32_t offset); 59 static std::unique_ptr<SingleStepper> GetStepper(const EcmaVM *ecmaVm, SingleStepper::Type type); 60 61 const EcmaVM *ecmaVm_; 62 std::unique_ptr<PtMethod> method_; 63 std::list<JSPtStepRange> stepRanges_; 64 uint32_t stackDepth_; 65 Type type_; 66 }; 67 } // namespace panda::ecmascript::tooling 68 #endif // ECMASCRIPT_TOOLING_BACKEND_JS_PT_EXTRACTOR_H 69