LCOV - code coverage report
Current view: top level - include/llvm/DebugInfo/PDB/Native - DbiModuleList.h (source / functions) Hit Total Coverage
Test: llvm-toolchain.info Lines: 2 2 100.0 %
Date: 2017-09-14 15:23:50 Functions: 3 3 100.0 %
Legend: Lines: hit not hit

          Line data    Source code
       1             : //===- DbiModuleList.h - PDB module information list ------------*- 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_PDB_NATIVE_DBIMODULELIST_H
      11             : #define LLVM_DEBUGINFO_PDB_NATIVE_DBIMODULELIST_H
      12             : 
      13             : #include "llvm/ADT/StringRef.h"
      14             : #include "llvm/ADT/iterator.h"
      15             : #include "llvm/ADT/iterator_range.h"
      16             : #include "llvm/DebugInfo/PDB/Native/DbiModuleDescriptor.h"
      17             : #include "llvm/Support/BinaryStreamArray.h"
      18             : #include "llvm/Support/BinaryStreamRef.h"
      19             : #include "llvm/Support/Endian.h"
      20             : #include "llvm/Support/Error.h"
      21             : #include <cstddef>
      22             : #include <cstdint>
      23             : #include <iterator>
      24             : #include <vector>
      25             : 
      26             : namespace llvm {
      27             : namespace pdb {
      28             : 
      29             : class DbiModuleList;
      30             : struct FileInfoSubstreamHeader;
      31             : 
      32             : class DbiModuleSourceFilesIterator
      33             :     : public iterator_facade_base<DbiModuleSourceFilesIterator,
      34             :                                   std::random_access_iterator_tag, StringRef> {
      35             :   using BaseType =
      36             :       iterator_facade_base<DbiModuleSourceFilesIterator,
      37             :                            std::random_access_iterator_tag, StringRef>;
      38             : 
      39             : public:
      40             :   DbiModuleSourceFilesIterator(const DbiModuleList &Modules, uint32_t Modi,
      41             :                                uint16_t Filei);
      42          61 :   DbiModuleSourceFilesIterator() = default;
      43             :   DbiModuleSourceFilesIterator &
      44             :   operator=(const DbiModuleSourceFilesIterator &R) = default;
      45             : 
      46             :   bool operator==(const DbiModuleSourceFilesIterator &R) const;
      47             : 
      48             :   const StringRef &operator*() const { return ThisValue; }
      49             :   StringRef &operator*() { return ThisValue; }
      50             : 
      51             :   bool operator<(const DbiModuleSourceFilesIterator &RHS) const;
      52             :   std::ptrdiff_t operator-(const DbiModuleSourceFilesIterator &R) const;
      53             :   DbiModuleSourceFilesIterator &operator+=(std::ptrdiff_t N);
      54             :   DbiModuleSourceFilesIterator &operator-=(std::ptrdiff_t N);
      55             : 
      56             : private:
      57             :   void setValue();
      58             : 
      59             :   bool isEnd() const;
      60             :   bool isCompatible(const DbiModuleSourceFilesIterator &R) const;
      61             :   bool isUniversalEnd() const;
      62             : 
      63             :   StringRef ThisValue;
      64             :   const DbiModuleList *Modules{nullptr};
      65             :   uint32_t Modi{0};
      66             :   uint16_t Filei{0};
      67             : };
      68             : 
      69        1250 : class DbiModuleList {
      70             :   friend DbiModuleSourceFilesIterator;
      71             : 
      72             : public:
      73             :   Error initialize(BinaryStreamRef ModInfo, BinaryStreamRef FileInfo);
      74             : 
      75             :   Expected<StringRef> getFileName(uint32_t Index) const;
      76             :   uint32_t getModuleCount() const;
      77             :   uint32_t getSourceFileCount() const;
      78             :   uint16_t getSourceFileCount(uint32_t Modi) const;
      79             : 
      80             :   iterator_range<DbiModuleSourceFilesIterator>
      81             :   source_files(uint32_t Modi) const;
      82             : 
      83             :   DbiModuleDescriptor getModuleDescriptor(uint32_t Modi) const;
      84             : 
      85             : private:
      86             :   Error initializeModInfo(BinaryStreamRef ModInfo);
      87             :   Error initializeFileInfo(BinaryStreamRef FileInfo);
      88             : 
      89             :   VarStreamArray<DbiModuleDescriptor> Descriptors;
      90             : 
      91             :   FixedStreamArray<support::little32_t> FileNameOffsets;
      92             :   FixedStreamArray<support::ulittle16_t> ModFileCountArray;
      93             : 
      94             :   // For each module, there are multiple filenames, which can be obtained by
      95             :   // knowing the index of the file.  Given the index of the file, one can use
      96             :   // that as an offset into the FileNameOffsets array, which contains the
      97             :   // absolute offset of the file name in NamesBuffer.  Thus, for each module
      98             :   // we store the first index in the FileNameOffsets array for this module.
      99             :   // The number of files for the corresponding module is stored in
     100             :   // ModFileCountArray.
     101             :   std::vector<uint32_t> ModuleInitialFileIndex;
     102             : 
     103             :   // In order to provide random access into the Descriptors array, we iterate it
     104             :   // once up front to find the offsets of the individual items and store them in
     105             :   // this array.
     106             :   std::vector<uint32_t> ModuleDescriptorOffsets;
     107             : 
     108             :   const FileInfoSubstreamHeader *FileInfoHeader = nullptr;
     109             : 
     110             :   BinaryStreamRef ModInfoSubstream;
     111             :   BinaryStreamRef FileInfoSubstream;
     112             :   BinaryStreamRef NamesBuffer;
     113             : };
     114             : 
     115             : } // end namespace pdb
     116             : } // end namespace llvm
     117             : 
     118             : #endif // LLVM_DEBUGINFO_PDB_NATIVE_DBIMODULELIST_H

Generated by: LCOV version 1.13