include/llvm/DebugInfo/CodeView/DebugCrossExSubsection.h

   1 //===- DebugCrossExSubsection.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_DEBUGCROSSEXSUBSECTION_H
  10 #define LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSEXSUBSECTION_H
  11
  12 #include "llvm/DebugInfo/CodeView/CodeView.h"
  13 #include "llvm/DebugInfo/CodeView/DebugSubsection.h"
  14 #include "llvm/Support/BinaryStreamArray.h"
  15 #include "llvm/Support/BinaryStreamReader.h"
  16 #include "llvm/Support/BinaryStreamRef.h"
  17 #include "llvm/Support/Error.h"
  18 #include <cstdint>
  19 #include <map>
  20
  21 namespace llvm {
  22 namespace codeview {
  23
  24 class DebugCrossModuleExportsSubsectionRef final : public DebugSubsectionRef {
  25   using ReferenceArray = FixedStreamArray<CrossModuleExport>;
  26   using Iterator = ReferenceArray::Iterator;
  27
  28 public:
  29   DebugCrossModuleExportsSubsectionRef()
  30       : DebugSubsectionRef(DebugSubsectionKind::CrossScopeExports) {}
  31
  32   static bool classof(const DebugSubsectionRef *S) {
  33     return S->kind() == DebugSubsectionKind::CrossScopeExports;
  34   }
  35
  36   Error initialize(BinaryStreamReader Reader);
  37   Error initialize(BinaryStreamRef Stream);
  38
  39   Iterator begin() const { return References.begin(); }
  40   Iterator end() const { return References.end(); }
  41
  42 private:
  43   FixedStreamArray<CrossModuleExport> References;
  44 };
  45
  46 class DebugCrossModuleExportsSubsection final : public DebugSubsection {
  47 public:
  48   DebugCrossModuleExportsSubsection()
  49       : DebugSubsection(DebugSubsectionKind::CrossScopeExports) {}
  50
  51   static bool classof(const DebugSubsection *S) {
  52     return S->kind() == DebugSubsectionKind::CrossScopeExports;
  53   }
  54
  55   void addMapping(uint32_t Local, uint32_t Global);
  56
  57   uint32_t calculateSerializedSize() const override;
  58   Error commit(BinaryStreamWriter &Writer) const override;
  59
  60 private:
  61   std::map<uint32_t, uint32_t> Mappings;
  62 };
  63
  64 } // end namespace codeview
  65 } // end namespace llvm
  66
  67 #endif // LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSEXSUBSECTION_H