1 //===- ContinuationRecordBuilder.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_CONTINUATIONRECORDBUILDER_H 10 #define LLVM_DEBUGINFO_CODEVIEW_CONTINUATIONRECORDBUILDER_H 11 12 #include "llvm/ADT/ArrayRef.h" 13 #include "llvm/ADT/Optional.h" 14 #include "llvm/ADT/SmallVector.h" 15 #include "llvm/DebugInfo/CodeView/CodeView.h" 16 #include "llvm/DebugInfo/CodeView/RecordSerialization.h" 17 #include "llvm/DebugInfo/CodeView/TypeIndex.h" 18 #include "llvm/DebugInfo/CodeView/TypeRecord.h" 19 #include "llvm/DebugInfo/CodeView/TypeRecordMapping.h" 20 #include "llvm/DebugInfo/CodeView/TypeVisitorCallbacks.h" 21 #include "llvm/Support/Allocator.h" 22 #include "llvm/Support/BinaryByteStream.h" 23 #include "llvm/Support/BinaryStreamWriter.h" 24 #include "llvm/Support/Error.h" 25 #include <cassert> 26 #include <cstdint> 27 #include <memory> 28 #include <vector> 29 30 namespace llvm { 31 namespace codeview { 32 enum class ContinuationRecordKind { FieldList, MethodOverloadList }; 33 34 class ContinuationRecordBuilder { 35 SmallVector<uint32_t, 4> SegmentOffsets; 36 Optional<ContinuationRecordKind> Kind; 37 AppendingBinaryByteStream Buffer; 38 BinaryStreamWriter SegmentWriter; 39 TypeRecordMapping Mapping; 40 ArrayRef<uint8_t> InjectedSegmentBytes; 41 42 uint32_t getCurrentSegmentLength() const; 43 44 void insertSegmentEnd(uint32_t Offset); 45 CVType createSegmentRecord(uint32_t OffBegin, uint32_t OffEnd, 46 Optional<TypeIndex> RefersTo); 47 48 public: 49 ContinuationRecordBuilder(); 50 ~ContinuationRecordBuilder(); 51 52 void begin(ContinuationRecordKind RecordKind); 53 54 // This template is explicitly instantiated in the implementation file for all 55 // supported types. The method itself is ugly, so inlining it into the header 56 // file clutters an otherwise straightforward interface. 57 template <typename RecordType> void writeMemberType(RecordType &Record); 58 59 std::vector<CVType> end(TypeIndex Index); 60 }; 61 } // namespace codeview 62 } // namespace llvm 63 64 #endif 65