lib/DebugInfo/CodeView/MemoryTypeTableBuilder.cpp

   1 //===-- MemoryTypeTableBuilder.cpp ----------------------------------------===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9
  10 #include "llvm/DebugInfo/CodeView/MemoryTypeTableBuilder.h"
  11 #include "llvm/DebugInfo/CodeView/TypeIndex.h"
  12
  13 using namespace llvm;
  14 using namespace codeview;
  15
  16 MemoryTypeTableBuilder::Record::Record(StringRef RData)
  17     : Size(RData.size()), Data(new char[RData.size()]) {
  18   memcpy(Data.get(), RData.data(), RData.size());
  19 }
  20
  21 TypeIndex MemoryTypeTableBuilder::writeRecord(StringRef Data) {
  22   auto I = HashedRecords.find(Data);
  23   if (I != HashedRecords.end()) {
  24     return I->second;
  25   }
  26
  27   std::unique_ptr<Record> R(new Record(Data));
  28
  29   TypeIndex TI(static_cast<uint32_t>(Records.size()) +
  30                TypeIndex::FirstNonSimpleIndex);
  31   HashedRecords.insert(std::make_pair(StringRef(R->data(), R->size()), TI));
  32   Records.push_back(std::move(R));
  33
  34   return TI;
  35 }