1 //===- SymbolDeserializer.h -------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #ifndef LLVM_DEBUGINFO_CODEVIEW_SYMBOLDESERIALIZER_H
11 #define LLVM_DEBUGINFO_CODEVIEW_SYMBOLDESERIALIZER_H
13 #include "llvm/ADT/ArrayRef.h"
14 #include "llvm/DebugInfo/CodeView/SymbolRecord.h"
15 #include "llvm/DebugInfo/CodeView/SymbolRecordMapping.h"
16 #include "llvm/DebugInfo/CodeView/SymbolVisitorCallbacks.h"
17 #include "llvm/DebugInfo/CodeView/SymbolVisitorDelegate.h"
18 #include "llvm/Support/BinaryByteStream.h"
19 #include "llvm/Support/BinaryStreamReader.h"
20 #include "llvm/Support/Error.h"
24 class SymbolVisitorDelegate;
25 class SymbolDeserializer : public SymbolVisitorCallbacks {
27 explicit MappingInfo(ArrayRef<uint8_t> RecordData)
28 : Stream(RecordData, llvm::support::little), Reader(Stream),
31 BinaryByteStream Stream;
32 BinaryStreamReader Reader;
33 SymbolRecordMapping Mapping;
37 explicit SymbolDeserializer(SymbolVisitorDelegate *Delegate)
38 : Delegate(Delegate) {}
40 Error visitSymbolBegin(CVSymbol &Record) override {
41 assert(!Mapping && "Already in a symbol mapping!");
42 Mapping = llvm::make_unique<MappingInfo>(Record.content());
43 return Mapping->Mapping.visitSymbolBegin(Record);
45 Error visitSymbolEnd(CVSymbol &Record) override {
46 assert(Mapping && "Not in a symbol mapping!");
47 auto EC = Mapping->Mapping.visitSymbolEnd(Record);
52 #define SYMBOL_RECORD(EnumName, EnumVal, Name) \
53 Error visitKnownRecord(CVSymbol &CVR, Name &Record) override { \
54 return visitKnownRecordImpl(CVR, Record); \
56 #define SYMBOL_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
57 #include "CVSymbolTypes.def"
60 template <typename T> Error visitKnownRecordImpl(CVSymbol &CVR, T &Record) {
63 Delegate ? Delegate->getRecordOffset(Mapping->Reader) : 0;
64 if (auto EC = Mapping->Mapping.visitKnownRecord(CVR, Record))
66 return Error::success();
69 SymbolVisitorDelegate *Delegate;
70 std::unique_ptr<MappingInfo> Mapping;