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 ECMASCRIPT_TOOLING_BACKEND_DEBUGGER_API_H 17 #define ECMASCRIPT_TOOLING_BACKEND_DEBUGGER_API_H 18 19 #include <functional> 20 21 #include "ecmascript/common.h" 22 #include "ecmascript/debugger/js_debugger_interface.h" 23 #include "ecmascript/debugger/js_pt_method.h" 24 #include "ecmascript/jspandafile/scope_info_extractor.h" 25 #include "ecmascript/napi/include/jsnapi.h" 26 #include "ecmascript/lexical_env.h" 27 28 namespace panda { 29 namespace ecmascript { 30 class EcmaVM; 31 class FrameHandler; 32 class JSThread; 33 class Method; 34 class ModuleManager; 35 class NameDictionary; 36 class SourceTextModule; 37 class DebugInfoExtractor; 38 namespace tooling { 39 class JSDebugger; 40 } 41 } // ecmascript 42 } // panda 43 44 namespace panda::ecmascript::tooling { 45 enum StackState { 46 CONTINUE, 47 FAILED, 48 SUCCESS, 49 }; 50 51 class PUBLIC_API DebuggerApi { 52 public: 53 // FrameHandler 54 static uint32_t GetStackDepth(const EcmaVM *ecmaVm); 55 static std::shared_ptr<FrameHandler> NewFrameHandler(const EcmaVM *ecmaVm); 56 static bool StackWalker(const EcmaVM *ecmaVm, std::function<StackState(const FrameHandler *)> func); 57 58 static uint32_t GetBytecodeOffset(const EcmaVM *ecmaVm); 59 static uint32_t GetBytecodeOffset(const FrameHandler *frameHandler); 60 static std::unique_ptr<PtMethod> GetMethod(const EcmaVM *ecmaVm); 61 static Method *GetMethod(const FrameHandler *frameHandler); 62 static bool IsNativeMethod(const EcmaVM *ecmaVm); 63 static bool IsNativeMethod(const FrameHandler *frameHandler); 64 static JSPandaFile *GetJSPandaFile(const EcmaVM *ecmaVm); 65 66 static JSTaggedValue GetEnv(const FrameHandler *frameHandler); 67 static JSTaggedType *GetSp(const FrameHandler *frameHandler); 68 static int32_t GetVregIndex(const FrameHandler *frameHandler, std::string_view name); 69 static Local<JSValueRef> GetVRegValue(const EcmaVM *ecmaVm, 70 const FrameHandler *frameHandler, size_t index); 71 static void SetVRegValue(FrameHandler *frameHandler, size_t index, Local<JSValueRef> value); 72 73 static Local<JSValueRef> GetProperties(const EcmaVM *ecmaVm, const FrameHandler *frameHandler, 74 int32_t level, uint32_t slot); 75 static void SetProperties(const EcmaVM *vm, const FrameHandler *frameHandler, int32_t level, 76 uint32_t slot, Local<JSValueRef> value); 77 static std::pair<int32_t, uint32_t> GetLevelSlot(const FrameHandler *frameHandler, std::string_view name); 78 static Local<JSValueRef> GetGlobalValue(const EcmaVM *vm, Local<StringRef> name); 79 static bool SetGlobalValue(const EcmaVM *vm, Local<StringRef> name, Local<JSValueRef> value); 80 81 // JSThread 82 static Local<JSValueRef> GetAndClearException(const EcmaVM *ecmaVm); 83 static JSTaggedValue GetCurrentModule(const EcmaVM *ecmaVm); 84 static void GetModuleVariables(const EcmaVM *vm, Local<ObjectRef> &moduleObj, JSThread *thread); 85 static void SetException(const EcmaVM *ecmaVm, Local<JSValueRef> exception); 86 static void ClearException(const EcmaVM *ecmaVm); 87 static bool IsExceptionCaught(const EcmaVM *ecmaVm); 88 89 // NumberHelper 90 static double StringToDouble(const uint8_t *start, const uint8_t *end, uint8_t radix); 91 92 // JSDebugger 93 static JSDebugger *CreateJSDebugger(const EcmaVM *ecmaVm); 94 static void DestroyJSDebugger(JSDebugger *debugger); 95 static void RegisterHooks(JSDebugger *debugger, PtHooks *hooks); 96 static bool SetBreakpoint(JSDebugger *debugger, const JSPtLocation &location, 97 Local<FunctionRef> condFuncRef); 98 static bool RemoveBreakpoint(JSDebugger *debugger, const JSPtLocation &location); 99 static void RemoveAllBreakpoints(JSDebugger *debugger); 100 static void HandleUncaughtException(const EcmaVM *ecmaVm, std::string &message); 101 static Local<JSValueRef> EvaluateViaFuncCall(EcmaVM *ecmaVm, Local<FunctionRef> funcRef, 102 std::shared_ptr<FrameHandler> &frameHandler); 103 static Local<FunctionRef> GenerateFuncFromBuffer(const EcmaVM *ecmaVm, const void *buffer, size_t size, 104 std::string_view entryPoint); 105 106 // HotReload 107 static DebugInfoExtractor *GetPatchExtractor(const EcmaVM *ecmaVm, const std::string &url); 108 static const JSPandaFile *GetBaseJSPandaFile(const EcmaVM *ecmaVm, const JSPandaFile *jsPandaFile); 109 }; 110 } // namespace panda::ecmascript::tooling 111 112 #endif // ECMASCRIPT_TOOLING_BACKEND_DEBUGGER_API_H 113