Coverage Report

Created: 2019-07-24 05:18

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/include/llvm/DebugInfo/CodeView/DebugInlineeLinesSubsection.h
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//===- DebugInlineeLinesSubsection.h ----------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_DEBUGINFO_CODEVIEW_DEBUGINLINEELINESSUBSECTION_H
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#define LLVM_DEBUGINFO_CODEVIEW_DEBUGINLINEELINESSUBSECTION_H
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#include "llvm/ADT/StringRef.h"
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#include "llvm/DebugInfo/CodeView/CodeView.h"
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#include "llvm/DebugInfo/CodeView/DebugSubsection.h"
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#include "llvm/DebugInfo/CodeView/Line.h"
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#include "llvm/DebugInfo/CodeView/TypeIndex.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/BinaryStreamRef.h"
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#include "llvm/Support/Endian.h"
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#include "llvm/Support/Error.h"
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#include <cstdint>
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#include <vector>
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namespace llvm {
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namespace codeview {
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class DebugChecksumsSubsection;
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enum class InlineeLinesSignature : uint32_t {
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  Normal,    // CV_INLINEE_SOURCE_LINE_SIGNATURE
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  ExtraFiles // CV_INLINEE_SOURCE_LINE_SIGNATURE_EX
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};
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struct InlineeSourceLineHeader {
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  TypeIndex Inlinee;                  // ID of the function that was inlined.
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  support::ulittle32_t FileID;        // Offset into FileChecksums subsection.
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  support::ulittle32_t SourceLineNum; // First line of inlined code.
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                                      // If extra files present:
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                                      //   ulittle32_t ExtraFileCount;
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                                      //   ulittle32_t Files[];
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};
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struct InlineeSourceLine {
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  const InlineeSourceLineHeader *Header;
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  FixedStreamArray<support::ulittle32_t> ExtraFiles;
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};
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} // end namespace codeview
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template <> struct VarStreamArrayExtractor<codeview::InlineeSourceLine> {
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  Error operator()(BinaryStreamRef Stream, uint32_t &Len,
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                   codeview::InlineeSourceLine &Item);
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  bool HasExtraFiles = false;
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};
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namespace codeview {
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class DebugInlineeLinesSubsectionRef final : public DebugSubsectionRef {
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  using LinesArray = VarStreamArray<InlineeSourceLine>;
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  using Iterator = LinesArray::Iterator;
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public:
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  DebugInlineeLinesSubsectionRef();
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  static bool classof(const DebugSubsectionRef *S) {
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    return S->kind() == DebugSubsectionKind::InlineeLines;
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  }
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  Error initialize(BinaryStreamReader Reader);
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  Error initialize(BinaryStreamRef Section) {
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    return initialize(BinaryStreamReader(Section));
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  }
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  bool valid() const { return Lines.valid(); }
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  bool hasExtraFiles() const;
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  Iterator begin() const { return Lines.begin(); }
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  Iterator end() const { return Lines.end(); }
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private:
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  InlineeLinesSignature Signature;
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  LinesArray Lines;
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};
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class DebugInlineeLinesSubsection final : public DebugSubsection {
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public:
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  struct Entry {
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    std::vector<support::ulittle32_t> ExtraFiles;
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    InlineeSourceLineHeader Header;
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  };
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  DebugInlineeLinesSubsection(DebugChecksumsSubsection &Checksums,
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                              bool HasExtraFiles = false);
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  static bool classof(const DebugSubsection *S) {
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    return S->kind() == DebugSubsectionKind::InlineeLines;
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  }
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  Error commit(BinaryStreamWriter &Writer) const override;
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  uint32_t calculateSerializedSize() const override;
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  void addInlineSite(TypeIndex FuncId, StringRef FileName, uint32_t SourceLine);
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  void addExtraFile(StringRef FileName);
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  bool hasExtraFiles() const { return HasExtraFiles; }
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  void setHasExtraFiles(bool Has) { HasExtraFiles = Has; }
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  std::vector<Entry>::const_iterator begin() const { return Entries.begin(); }
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  std::vector<Entry>::const_iterator end() const { return Entries.end(); }
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private:
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  DebugChecksumsSubsection &Checksums;
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  bool HasExtraFiles = false;
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  uint32_t ExtraFileCount = 0;
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  std::vector<Entry> Entries;
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};
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} // end namespace codeview
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} // end namespace llvm
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#endif // LLVM_DEBUGINFO_CODEVIEW_DEBUGINLINEELINESSUBSECTION_H