Coverage Report

Created: 2019-02-23 12:57

/Users/buildslave/jenkins/workspace/clang-stage2-coverage-R/llvm/tools/clang/include/clang/Edit/EditedSource.h
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//===- EditedSource.h - Collection of source edits --------------*- 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_CLANG_EDIT_EDITEDSOURCE_H
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#define LLVM_CLANG_EDIT_EDITEDSOURCE_H
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#include "clang/Basic/IdentifierTable.h"
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#include "clang/Basic/LLVM.h"
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#include "clang/Basic/SourceLocation.h"
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#include "clang/Edit/FileOffset.h"
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#include "llvm/ADT/DenseMap.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/Support/Allocator.h"
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#include <map>
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#include <tuple>
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#include <utility>
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namespace clang {
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class LangOptions;
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class PPConditionalDirectiveRecord;
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class SourceManager;
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namespace edit {
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class Commit;
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class EditsReceiver;
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class EditedSource {
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  const SourceManager &SourceMgr;
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  const LangOptions &LangOpts;
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  const PPConditionalDirectiveRecord *PPRec;
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  struct FileEdit {
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    StringRef Text;
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    unsigned RemoveLen = 0;
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    FileEdit() = default;
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  };
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  using FileEditsTy = std::map<FileOffset, FileEdit>;
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  FileEditsTy FileEdits;
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  struct MacroArgUse {
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    IdentifierInfo *Identifier;
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    SourceLocation ImmediateExpansionLoc;
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    // Location of argument use inside the top-level macro
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    SourceLocation UseLoc;
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    bool operator==(const MacroArgUse &Other) const {
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      return std::tie(Identifier, ImmediateExpansionLoc, UseLoc) ==
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             std::tie(Other.Identifier, Other.ImmediateExpansionLoc,
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                      Other.UseLoc);
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    }
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  };
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  llvm::DenseMap<unsigned, SmallVector<MacroArgUse, 2>> ExpansionToArgMap;
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  SmallVector<std::pair<SourceLocation, MacroArgUse>, 2>
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    CurrCommitMacroArgExps;
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  IdentifierTable IdentTable;
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  llvm::BumpPtrAllocator StrAlloc;
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public:
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  EditedSource(const SourceManager &SM, const LangOptions &LangOpts,
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               const PPConditionalDirectiveRecord *PPRec = nullptr)
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      : SourceMgr(SM), LangOpts(LangOpts), PPRec(PPRec), IdentTable(LangOpts) {}
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  const SourceManager &getSourceManager() const { return SourceMgr; }
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  const LangOptions &getLangOpts() const { return LangOpts; }
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  const PPConditionalDirectiveRecord *getPPCondDirectiveRecord() const {
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    return PPRec;
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  }
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  bool canInsertInOffset(SourceLocation OrigLoc, FileOffset Offs);
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  bool commit(const Commit &commit);
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  void applyRewrites(EditsReceiver &receiver, bool adjustRemovals = true);
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  void clearRewrites();
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  StringRef copyString(StringRef str) { return str.copy(StrAlloc); }
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  StringRef copyString(const Twine &twine);
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private:
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  bool commitInsert(SourceLocation OrigLoc, FileOffset Offs, StringRef text,
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                    bool beforePreviousInsertions);
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  bool commitInsertFromRange(SourceLocation OrigLoc, FileOffset Offs,
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                             FileOffset InsertFromRangeOffs, unsigned Len,
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                             bool beforePreviousInsertions);
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  void commitRemove(SourceLocation OrigLoc, FileOffset BeginOffs, unsigned Len);
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  StringRef getSourceText(FileOffset BeginOffs, FileOffset EndOffs,
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                          bool &Invalid);
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  FileEditsTy::iterator getActionForOffset(FileOffset Offs);
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  void deconstructMacroArgLoc(SourceLocation Loc,
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                              SourceLocation &ExpansionLoc,
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                              MacroArgUse &ArgUse);
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  void startingCommit();
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  void finishedCommit();
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};
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} // namespace edit
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} // namespace clang
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#endif // LLVM_CLANG_EDIT_EDITEDSOURCE_H