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 16 #ifndef ECMASCRIPT_MEM_HEAP_VERIFICATION_H 17 #define ECMASCRIPT_MEM_HEAP_VERIFICATION_H 18 19 #include <cstdint> 20 21 #include "ecmascript/js_tagged_value.h" 22 #include "ecmascript/mem/heap.h" 23 #include "ecmascript/mem/object_xray.h" 24 #include "ecmascript/mem/mem.h" 25 #include "ecmascript/mem/slots.h" 26 27 namespace panda::ecmascript { 28 // Verify the object body 29 // NOLINTNEXTLINE(cppcoreguidelines-special-member-functions, hicpp-special-member-functions) 30 class VerifyObjectVisitor { 31 public: VerifyObjectVisitor(const Heap * heap,size_t * failCount)32 VerifyObjectVisitor(const Heap *heap, size_t *failCount) 33 : heap_(heap), failCount_(failCount), objXRay_(heap->GetEcmaVM()) 34 { 35 } 36 ~VerifyObjectVisitor() = default; 37 operator()38 void operator()(TaggedObject *obj) 39 { 40 VisitAllObjects(obj); 41 } 42 43 void operator()(TaggedObject *obj, JSTaggedValue value); 44 GetFailedCount()45 size_t GetFailedCount() const 46 { 47 return *failCount_; 48 } 49 50 private: 51 void VisitAllObjects(TaggedObject *obj); 52 53 const Heap* const heap_ {nullptr}; 54 size_t* const failCount_ {nullptr}; 55 ObjectXRay objXRay_; 56 }; 57 58 class Verification { 59 public: Verification(const Heap * heap)60 explicit Verification(const Heap *heap) : heap_(heap), objXRay_(heap->GetEcmaVM()) {} 61 ~Verification() = default; 62 VerifyAll()63 size_t VerifyAll() const 64 { 65 size_t result = VerifyRoot(); 66 result += VerifyHeap(); 67 return result; 68 } 69 70 size_t VerifyRoot() const; 71 size_t VerifyHeap() const; 72 size_t VerifyOldToNewRSet() const; 73 private: 74 void VerifyObjectSlot(const ObjectSlot &slot, size_t *failCount) const; 75 76 NO_COPY_SEMANTIC(Verification); 77 NO_MOVE_SEMANTIC(Verification); 78 79 const Heap *heap_ {nullptr}; 80 ObjectXRay objXRay_; 81 }; 82 } // namespace panda::ecmascript 83 84 #endif // ECMASCRIPT_MEM_HEAP_VERIFICATION_H 85