1 //===- AppendingTypeTableBuilder.h -------------------------------*- C++-*-===// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLVM_DEBUGINFO_CODEVIEW_APPENDINGTYPETABLEBUILDER_H 10 #define LLVM_DEBUGINFO_CODEVIEW_APPENDINGTYPETABLEBUILDER_H 11 12 #include "llvm/ADT/ArrayRef.h" 13 #include "llvm/ADT/SmallVector.h" 14 #include "llvm/DebugInfo/CodeView/CVRecord.h" 15 #include "llvm/DebugInfo/CodeView/SimpleTypeSerializer.h" 16 #include "llvm/DebugInfo/CodeView/TypeCollection.h" 17 #include "llvm/DebugInfo/CodeView/TypeIndex.h" 18 #include "llvm/Support/Allocator.h" 19 #include <cstdint> 20 21 namespace llvm { 22 namespace codeview { 23 24 class ContinuationRecordBuilder; 25 26 class AppendingTypeTableBuilder : public TypeCollection { 27 28 BumpPtrAllocator &RecordStorage; 29 SimpleTypeSerializer SimpleSerializer; 30 31 /// Contains a list of all records indexed by TypeIndex.toArrayIndex(). 32 SmallVector<ArrayRef<uint8_t>, 2> SeenRecords; 33 34 public: 35 explicit AppendingTypeTableBuilder(BumpPtrAllocator &Storage); 36 ~AppendingTypeTableBuilder(); 37 38 // TypeCollection overrides 39 Optional<TypeIndex> getFirst() override; 40 Optional<TypeIndex> getNext(TypeIndex Prev) override; 41 CVType getType(TypeIndex Index) override; 42 StringRef getTypeName(TypeIndex Index) override; 43 bool contains(TypeIndex Index) override; 44 uint32_t size() override; 45 uint32_t capacity() override; 46 bool replaceType(TypeIndex &Index, CVType Data, bool Stabilize) override; 47 48 // public interface 49 void reset(); 50 TypeIndex nextTypeIndex() const; 51 52 BumpPtrAllocator &getAllocator() { return RecordStorage; } 53 54 ArrayRef<ArrayRef<uint8_t>> records() const; 55 TypeIndex insertRecordBytes(ArrayRef<uint8_t> &Record); 56 TypeIndex insertRecord(ContinuationRecordBuilder &Builder); 57 58 template <typename T> TypeIndex writeLeafType(T &Record) { 59 ArrayRef<uint8_t> Data = SimpleSerializer.serialize(Record); 60 return insertRecordBytes(Data); 61 } 62 }; 63 64 } // end namespace codeview 65 } // end namespace llvm 66 67 #endif // LLVM_DEBUGINFO_CODEVIEW_APPENDINGTYPETABLEBUILDER_H 68