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4b665d2445
Previously extractors tried to be stateless with any additional context information needed in order to parse items being passed in via the extraction method. This led to quite cumbersome implementation challenges and awkwardness of use. This patch brings back support for stateful extractors, making the implementation and usage simpler. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@305093 91177308-0d34-0410-b5e6-96231b3b80d8
89 lines
2.5 KiB
C++
89 lines
2.5 KiB
C++
//===- DebugCrossExSubsection.h ---------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSIMPSUBSECTION_H
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#define LLVM_DEBUGINFO_CODEVIEW_DEBUGCROSSIMPSUBSECTION_H
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#include "llvm/ADT/StringMap.h"
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#include "llvm/DebugInfo/CodeView/DebugSubsection.h"
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#include "llvm/Support/BinaryStreamArray.h"
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#include "llvm/Support/BinaryStreamReader.h"
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#include "llvm/Support/Endian.h"
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namespace llvm {
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namespace codeview {
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struct CrossModuleImportItem {
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const CrossModuleImport *Header = nullptr;
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llvm::FixedStreamArray<support::ulittle32_t> Imports;
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};
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}
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}
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namespace llvm {
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template <> struct VarStreamArrayExtractor<codeview::CrossModuleImportItem> {
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public:
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typedef void ContextType;
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Error operator()(BinaryStreamRef Stream, uint32_t &Len,
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codeview::CrossModuleImportItem &Item);
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};
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}
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namespace llvm {
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namespace codeview {
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class DebugStringTableSubsection;
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class DebugCrossModuleImportsSubsectionRef final : public DebugSubsectionRef {
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typedef VarStreamArray<CrossModuleImportItem> ReferenceArray;
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typedef ReferenceArray::Iterator Iterator;
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public:
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DebugCrossModuleImportsSubsectionRef()
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: DebugSubsectionRef(DebugSubsectionKind::CrossScopeImports) {}
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static bool classof(const DebugSubsectionRef *S) {
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return S->kind() == DebugSubsectionKind::CrossScopeImports;
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}
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Error initialize(BinaryStreamReader Reader);
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Error initialize(BinaryStreamRef Stream);
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Iterator begin() const { return References.begin(); }
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Iterator end() const { return References.end(); }
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private:
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ReferenceArray References;
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};
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class DebugCrossModuleImportsSubsection final : public DebugSubsection {
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public:
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explicit DebugCrossModuleImportsSubsection(
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DebugStringTableSubsection &Strings)
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: DebugSubsection(DebugSubsectionKind::CrossScopeImports),
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Strings(Strings) {}
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static bool classof(const DebugSubsection *S) {
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return S->kind() == DebugSubsectionKind::CrossScopeImports;
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}
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void addImport(StringRef Module, uint32_t ImportId);
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uint32_t calculateSerializedSize() const override;
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Error commit(BinaryStreamWriter &Writer) const override;
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private:
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DebugStringTableSubsection &Strings;
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StringMap<std::vector<support::ulittle32_t>> Mappings;
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};
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}
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}
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#endif
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