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/DebugInfo/MSF/ByteStream.h"
19 #include "llvm/DebugInfo/MSF/StreamReader.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), Reader(Stream), Mapping(Reader) {}
30 msf::ByteStream Stream;
31 msf::StreamReader Reader;
32 SymbolRecordMapping Mapping;
36 explicit SymbolDeserializer(SymbolVisitorDelegate *Delegate)
37 : Delegate(Delegate) {}
39 Error visitSymbolBegin(CVSymbol &Record) override {
40 assert(!Mapping && "Already in a symbol mapping!");
41 Mapping = llvm::make_unique<MappingInfo>(Record.content());
42 return Mapping->Mapping.visitSymbolBegin(Record);
44 Error visitSymbolEnd(CVSymbol &Record) override {
45 assert(Mapping && "Not in a symbol mapping!");
46 auto EC = Mapping->Mapping.visitSymbolEnd(Record);
51 #define SYMBOL_RECORD(EnumName, EnumVal, Name) \
52 Error visitKnownRecord(CVSymbol &CVR, Name &Record) override { \
53 return visitKnownRecordImpl(CVR, Record); \
55 #define SYMBOL_RECORD_ALIAS(EnumName, EnumVal, Name, AliasName)
56 #include "CVSymbolTypes.def"
59 template <typename T> Error visitKnownRecordImpl(CVSymbol &CVR, T &Record) {
62 Delegate ? Delegate->getRecordOffset(Mapping->Reader) : 0;
63 if (auto EC = Mapping->Mapping.visitKnownRecord(CVR, Record))
65 return Error::success();
68 SymbolVisitorDelegate *Delegate;
69 std::unique_ptr<MappingInfo> Mapping;