diff options
author | David L. Jones <dlj@google.com> | 2017-11-15 01:40:05 +0000 |
---|---|---|
committer | David L. Jones <dlj@google.com> | 2017-11-15 01:40:05 +0000 |
commit | fdfce82b87b73e18577d493e84bdabe2585b95d0 (patch) | |
tree | e8d9290e273dba03920bf15a8c7742fcf5ed0b87 /include/clang/Basic/SourceManager.h | |
parent | 41af1698c520ea38edf83e7c91f1e519d34f20c1 (diff) | |
parent | a7540887e8b5cb34ee28c12bef863bad85c65b6f (diff) | |
download | clang-google/testing.tar.gz |
Creating branches/google/testing and tags/google/testing/2017-11-14 from r317716google/testing
git-svn-id: https://llvm.org/svn/llvm-project/cfe/branches/google/testing@318248 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/clang/Basic/SourceManager.h')
-rw-r--r-- | include/clang/Basic/SourceManager.h | 72 |
1 files changed, 35 insertions, 37 deletions
diff --git a/include/clang/Basic/SourceManager.h b/include/clang/Basic/SourceManager.h index 16bd5616a6..397ad2e77f 100644 --- a/include/clang/Basic/SourceManager.h +++ b/include/clang/Basic/SourceManager.h @@ -1,4 +1,4 @@ -//===--- SourceManager.h - Track and cache source files ---------*- C++ -*-===// +//===- SourceManager.h - Track and cache source files -----------*- C++ -*-===// // // The LLVM Compiler Infrastructure // @@ -6,7 +6,7 @@ // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// -/// +// /// \file /// \brief Defines the SourceManager interface. /// @@ -29,14 +29,13 @@ /// location in the source where the macro was originally defined, /// and the presumed location is where the line directive states that /// the line is 17, or any other line. -/// +// //===----------------------------------------------------------------------===// #ifndef LLVM_CLANG_BASIC_SOURCEMANAGER_H #define LLVM_CLANG_BASIC_SOURCEMANAGER_H #include "clang/Basic/FileManager.h" -#include "clang/Basic/LLVM.h" #include "clang/Basic/SourceLocation.h" #include "llvm/ADT/ArrayRef.h" #include "llvm/ADT/BitVector.h" @@ -49,10 +48,8 @@ #include "llvm/Support/Allocator.h" #include "llvm/Support/Compiler.h" #include "llvm/Support/MemoryBuffer.h" -#include <algorithm> #include <cassert> #include <cstddef> -#include <cstdint> #include <map> #include <memory> #include <string> @@ -69,7 +66,6 @@ class SourceManager; /// \brief Public enums and private classes that are part of the /// SourceManager implementation. -/// namespace SrcMgr { /// \brief Indicates whether a file or directory holds normal user code, @@ -100,6 +96,7 @@ namespace SrcMgr { enum CCFlags { /// \brief Whether the buffer is invalid. InvalidFlag = 0x01, + /// \brief Whether the buffer should not be freed on destruction. DoNotFreeFlag = 0x02 }; @@ -130,12 +127,12 @@ namespace SrcMgr { /// /// This is lazily computed. This is owned by the SourceManager /// BumpPointerAllocator object. - unsigned *SourceLineCache; + unsigned *SourceLineCache = nullptr; /// \brief The number of lines in this ContentCache. /// /// This is only valid if SourceLineCache is non-null. - unsigned NumLines; + unsigned NumLines = 0; /// \brief Indicates whether the buffer itself was provided to override /// the actual file contents. @@ -157,15 +154,14 @@ namespace SrcMgr { ContentCache(const FileEntry *Ent, const FileEntry *contentEnt) : Buffer(nullptr, false), OrigEntry(Ent), ContentsEntry(contentEnt), - SourceLineCache(nullptr), NumLines(0), BufferOverridden(false), - IsSystemFile(false), IsTransient(false) {} + BufferOverridden(false), IsSystemFile(false), IsTransient(false) {} /// The copy ctor does not allow copies where source object has either /// a non-NULL Buffer or SourceLineCache. Ownership of allocated memory /// is not transferred, so this is a logical error. ContentCache(const ContentCache &RHS) - : Buffer(nullptr, false), SourceLineCache(nullptr), - BufferOverridden(false), IsSystemFile(false), IsTransient(false) { + : Buffer(nullptr, false), BufferOverridden(false), IsSystemFile(false), + IsTransient(false) { OrigEntry = RHS.OrigEntry; ContentsEntry = RHS.ContentsEntry; @@ -246,6 +242,10 @@ namespace SrcMgr { /// FileInfos contain a "ContentCache *", with the contents of the file. /// class FileInfo { + friend class clang::SourceManager; + friend class clang::ASTWriter; + friend class clang::ASTReader; + /// \brief The location of the \#include that brought in this file. /// /// This is an invalid SLOC for the main file (top of the \#include chain). @@ -264,10 +264,6 @@ namespace SrcMgr { llvm::PointerIntPair<const ContentCache*, 3, CharacteristicKind> ContentAndKind; - friend class clang::SourceManager; - friend class clang::ASTWriter; - friend class clang::ASTReader; - public: /// \brief Return a FileInfo object. static FileInfo get(SourceLocation IL, const ContentCache *Con, @@ -448,7 +444,7 @@ namespace SrcMgr { } }; -} // end SrcMgr namespace. +} // namespace SrcMgr /// \brief External source of source location entries. class ExternalSLocEntrySource { @@ -546,7 +542,7 @@ public: /// \brief The stack used when building modules on demand, which is used /// to provide a link between the source managers of the different compiler /// instances. -typedef ArrayRef<std::pair<std::string, FullSourceLoc>> ModuleBuildStack; +using ModuleBuildStack = ArrayRef<std::pair<std::string, FullSourceLoc>>; /// \brief This class handles loading and caching of source files into memory. /// @@ -578,7 +574,7 @@ class SourceManager : public RefCountedBase<SourceManager> { /// \brief True if the ContentCache for files that are overridden by other /// files, should report the original file name. Defaults to true. - bool OverridenFilesKeepOriginalName; + bool OverridenFilesKeepOriginalName = true; /// \brief True if non-system source files should be treated as volatile /// (likely to change while trying to use them). Defaults to false. @@ -587,12 +583,13 @@ class SourceManager : public RefCountedBase<SourceManager> { /// \brief True if all files read during this compilation should be treated /// as transient (may not be present in later compilations using a module /// file created from this compilation). Defaults to false. - bool FilesAreTransient; + bool FilesAreTransient = false; struct OverriddenFilesInfoTy { /// \brief Files that have been overridden with the contents from another /// file. llvm::DenseMap<const FileEntry *, const FileEntry *> OverriddenFiles; + /// \brief Files that were overridden with a memory buffer. llvm::DenseSet<const FileEntry *> OverriddenFilesWithBuffer; }; @@ -647,7 +644,7 @@ class SourceManager : public RefCountedBase<SourceManager> { llvm::BitVector SLocEntryLoaded; /// \brief An external source for source location entries. - ExternalSLocEntrySource *ExternalSLocEntries; + ExternalSLocEntrySource *ExternalSLocEntries = nullptr; /// \brief A one-entry cache to speed up getFileID. /// @@ -658,7 +655,7 @@ class SourceManager : public RefCountedBase<SourceManager> { /// \brief Holds information for \#line directives. /// /// This is referenced by indices from SLocEntryTable. - LineTableInfo *LineTable; + LineTableInfo *LineTable = nullptr; /// \brief These ivars serve as a cache used in the getLineNumber /// method which is used to speedup getLineNumber calls to nearby locations. @@ -674,7 +671,8 @@ class SourceManager : public RefCountedBase<SourceManager> { FileID PreambleFileID; // Statistics for -print-stats. - mutable unsigned NumLinearScans, NumBinaryProbes; + mutable unsigned NumLinearScans = 0; + mutable unsigned NumBinaryProbes = 0; /// \brief Associates a FileID with its "included/expanded in" decomposed /// location. @@ -684,12 +682,12 @@ class SourceManager : public RefCountedBase<SourceManager> { mutable llvm::DenseMap<FileID, std::pair<FileID, unsigned>> IncludedLocMap; /// The key value into the IsBeforeInTUCache table. - typedef std::pair<FileID, FileID> IsBeforeInTUCacheKey; + using IsBeforeInTUCacheKey = std::pair<FileID, FileID>; /// The IsBeforeInTranslationUnitCache is a mapping from FileID pairs /// to cache results. - typedef llvm::DenseMap<IsBeforeInTUCacheKey, InBeforeInTUCacheEntry> - InBeforeInTUCache; + using InBeforeInTUCache = + llvm::DenseMap<IsBeforeInTUCacheKey, InBeforeInTUCacheEntry>; /// Cache results for the isBeforeInTranslationUnit method. mutable InBeforeInTUCache IBTUCache; @@ -706,7 +704,7 @@ class SourceManager : public RefCountedBase<SourceManager> { /// \brief Lazily computed map of macro argument chunks to their expanded /// source location. - typedef std::map<unsigned, SourceLocation> MacroArgsMap; + using MacroArgsMap = std::map<unsigned, SourceLocation>; mutable llvm::DenseMap<FileID, std::unique_ptr<MacroArgsMap>> MacroArgsCacheMap; @@ -1417,7 +1415,6 @@ public: //===--------------------------------------------------------------------===// /// \brief Return the uniqued ID for the specified filename. - /// unsigned getLineTableFilenameID(StringRef Str); /// \brief Add a line note to the line table for the FileID and offset @@ -1538,8 +1535,9 @@ public: } // Iterators over FileInfos. - typedef llvm::DenseMap<const FileEntry*, SrcMgr::ContentCache*> - ::const_iterator fileinfo_iterator; + using fileinfo_iterator = + llvm::DenseMap<const FileEntry*, SrcMgr::ContentCache*>::const_iterator; + fileinfo_iterator fileinfo_begin() const { return FileInfos.begin(); } fileinfo_iterator fileinfo_end() const { return FileInfos.end(); } bool hasFileInfo(const FileEntry *File) const { @@ -1547,7 +1545,6 @@ public: } /// \brief Print statistics to stderr. - /// void PrintStats() const; void dump() const; @@ -1638,6 +1635,9 @@ public: } private: + friend class ASTReader; + friend class ASTWriter; + llvm::MemoryBuffer *getFakeBufferForRecovery() const; const SrcMgr::ContentCache *getFakeContentCacheForRecovery() const; @@ -1729,8 +1729,6 @@ private: SourceLocation SpellLoc, SourceLocation ExpansionLoc, unsigned ExpansionLength) const; - friend class ASTReader; - friend class ASTWriter; }; /// \brief Comparison function object. @@ -1743,7 +1741,7 @@ class BeforeThanCompare<SourceLocation> { SourceManager &SM; public: - explicit BeforeThanCompare(SourceManager &SM) : SM(SM) { } + explicit BeforeThanCompare(SourceManager &SM) : SM(SM) {} bool operator()(SourceLocation LHS, SourceLocation RHS) const { return SM.isBeforeInTranslationUnit(LHS, RHS); @@ -1756,13 +1754,13 @@ class BeforeThanCompare<SourceRange> { SourceManager &SM; public: - explicit BeforeThanCompare(SourceManager &SM) : SM(SM) { } + explicit BeforeThanCompare(SourceManager &SM) : SM(SM) {} bool operator()(SourceRange LHS, SourceRange RHS) const { return SM.isBeforeInTranslationUnit(LHS.getBegin(), RHS.getBegin()); } }; -} // end namespace clang +} // namespace clang #endif // LLVM_CLANG_BASIC_SOURCEMANAGER_H |