1 //===- DebugCrossExSubsection.h ---------------------------------*- C++ -*-===//
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 #ifndef LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSEXSUBSECTION_H
11 #define LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSEXSUBSECTION_H
12 
13 #include "llvm/DebugInfo/CodeView/CodeView.h"
14 #include "llvm/DebugInfo/CodeView/DebugSubsection.h"
15 #include "llvm/Support/BinaryStreamArray.h"
16 #include "llvm/Support/BinaryStreamReader.h"
17 #include "llvm/Support/BinaryStreamRef.h"
18 #include "llvm/Support/Error.h"
19 #include <cstdint>
20 #include <map>
21 
22 namespace llvm {
23 namespace codeview {
24 
25 class DebugCrossModuleExportsSubsectionRef final : public DebugSubsectionRef {
26   using ReferenceArray = FixedStreamArray<CrossModuleExport>;
27   using Iterator = ReferenceArray::Iterator;
28 
29 public:
DebugCrossModuleExportsSubsectionRef()30   DebugCrossModuleExportsSubsectionRef()
31       : DebugSubsectionRef(DebugSubsectionKind::CrossScopeExports) {}
32 
classof(const DebugSubsectionRef * S)33   static bool classof(const DebugSubsectionRef *S) {
34     return S->kind() == DebugSubsectionKind::CrossScopeExports;
35   }
36 
37   Error initialize(BinaryStreamReader Reader);
38   Error initialize(BinaryStreamRef Stream);
39 
begin()40   Iterator begin() const { return References.begin(); }
end()41   Iterator end() const { return References.end(); }
42 
43 private:
44   FixedStreamArray<CrossModuleExport> References;
45 };
46 
47 class DebugCrossModuleExportsSubsection final : public DebugSubsection {
48 public:
DebugCrossModuleExportsSubsection()49   DebugCrossModuleExportsSubsection()
50       : DebugSubsection(DebugSubsectionKind::CrossScopeExports) {}
51 
classof(const DebugSubsection * S)52   static bool classof(const DebugSubsection *S) {
53     return S->kind() == DebugSubsectionKind::CrossScopeExports;
54   }
55 
56   void addMapping(uint32_t Local, uint32_t Global);
57 
58   uint32_t calculateSerializedSize() const override;
59   Error commit(BinaryStreamWriter &Writer) const override;
60 
61 private:
62   std::map<uint32_t, uint32_t> Mappings;
63 };
64 
65 } // end namespace codeview
66 } // end namespace llvm
67 
68 #endif // LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSEXSUBSECTION_H
69