1 files changed, 117 insertions, 0 deletions
diff --git a/clang-r353983/include/clang/Edit/EditedSource.h b/clang-r353983/include/clang/Edit/EditedSource.h
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+++ b/clang-r353983/include/clang/Edit/EditedSource.h
@@ -0,0 +1,117 @@
+//===- EditedSource.h - Collection of source edits --------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_EDIT_EDITEDSOURCE_H
+#define LLVM_CLANG_EDIT_EDITEDSOURCE_H
+
+#include "clang/Basic/IdentifierTable.h"
+#include "clang/Basic/LLVM.h"
+#include "clang/Basic/SourceLocation.h"
+#include "clang/Edit/FileOffset.h"
+#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/Allocator.h"
+#include <map>
+#include <tuple>
+#include <utility>
+
+namespace clang {
+
+class LangOptions;
+class PPConditionalDirectiveRecord;
+class SourceManager;
+
+namespace edit {
+
+class Commit;
+class EditsReceiver;
+
+class EditedSource {
+  const SourceManager &SourceMgr;
+  const LangOptions &LangOpts;
+  const PPConditionalDirectiveRecord *PPRec;
+
+  struct FileEdit {
+    StringRef Text;
+    unsigned RemoveLen = 0;
+
+    FileEdit() = default;
+  };
+
+  using FileEditsTy = std::map<FileOffset, FileEdit>;
+
+  FileEditsTy FileEdits;
+
+  struct MacroArgUse {
+    IdentifierInfo *Identifier;
+    SourceLocation ImmediateExpansionLoc;
+
+    // Location of argument use inside the top-level macro
+    SourceLocation UseLoc;
+
+    bool operator==(const MacroArgUse &Other) const {
+      return std::tie(Identifier, ImmediateExpansionLoc, UseLoc) ==
+             std::tie(Other.Identifier, Other.ImmediateExpansionLoc,
+                      Other.UseLoc);
+    }
+  };
+
+  llvm::DenseMap<unsigned, SmallVector<MacroArgUse, 2>> ExpansionToArgMap;
+  SmallVector<std::pair<SourceLocation, MacroArgUse>, 2>
+    CurrCommitMacroArgExps;
+
+  IdentifierTable IdentTable;
+  llvm::BumpPtrAllocator StrAlloc;
+
+public:
+  EditedSource(const SourceManager &SM, const LangOptions &LangOpts,
+               const PPConditionalDirectiveRecord *PPRec = nullptr)
+      : SourceMgr(SM), LangOpts(LangOpts), PPRec(PPRec), IdentTable(LangOpts) {}
+
+  const SourceManager &getSourceManager() const { return SourceMgr; }
+  const LangOptions &getLangOpts() const { return LangOpts; }
+
+  const PPConditionalDirectiveRecord *getPPCondDirectiveRecord() const {
+    return PPRec;
+  }
+
+  bool canInsertInOffset(SourceLocation OrigLoc, FileOffset Offs);
+
+  bool commit(const Commit &commit);
+
+  void applyRewrites(EditsReceiver &receiver, bool adjustRemovals = true);
+  void clearRewrites();
+
+  StringRef copyString(StringRef str) { return str.copy(StrAlloc); }
+  StringRef copyString(const Twine &twine);
+
+private:
+  bool commitInsert(SourceLocation OrigLoc, FileOffset Offs, StringRef text,
+                    bool beforePreviousInsertions);
+  bool commitInsertFromRange(SourceLocation OrigLoc, FileOffset Offs,
+                             FileOffset InsertFromRangeOffs, unsigned Len,
+                             bool beforePreviousInsertions);
+  void commitRemove(SourceLocation OrigLoc, FileOffset BeginOffs, unsigned Len);
+
+  StringRef getSourceText(FileOffset BeginOffs, FileOffset EndOffs,
+                          bool &Invalid);
+  FileEditsTy::iterator getActionForOffset(FileOffset Offs);
+  void deconstructMacroArgLoc(SourceLocation Loc,
+                              SourceLocation &ExpansionLoc,
+                              MacroArgUse &ArgUse);
+
+  void startingCommit();
+  void finishedCommit();
+};
+
+} // namespace edit
+
+} // namespace clang
+
+#endif // LLVM_CLANG_EDIT_EDITEDSOURCE_H