1 files changed, 66 insertions, 0 deletions
diff --git a/clang-r344140b/include/clang/Edit/FileOffset.h b/clang-r344140b/include/clang/Edit/FileOffset.h
new file mode 100644
index 00000000..02c1b96b
--- /dev/null
+++ b/clang-r344140b/include/clang/Edit/FileOffset.h
@@ -0,0 +1,66 @@
+//===- FileOffset.h - Offset in a file --------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_EDIT_FILEOFFSET_H
+#define LLVM_CLANG_EDIT_FILEOFFSET_H
+
+#include "clang/Basic/SourceLocation.h"
+#include <tuple>
+
+namespace clang {
+namespace edit {
+
+class FileOffset {
+  FileID FID;
+  unsigned Offs = 0;
+
+public:
+  FileOffset() = default;
+  FileOffset(FileID fid, unsigned offs) : FID(fid), Offs(offs) {}
+
+  bool isInvalid() const { return FID.isInvalid(); }
+
+  FileID getFID() const { return FID; }
+  unsigned getOffset() const { return Offs; }
+
+  FileOffset getWithOffset(unsigned offset) const {
+    FileOffset NewOffs = *this;
+    NewOffs.Offs += offset;
+    return NewOffs;
+  }
+
+  friend bool operator==(FileOffset LHS, FileOffset RHS) {
+    return LHS.FID == RHS.FID && LHS.Offs == RHS.Offs;
+  }
+
+  friend bool operator!=(FileOffset LHS, FileOffset RHS) {
+    return !(LHS == RHS);
+  }
+
+  friend bool operator<(FileOffset LHS, FileOffset RHS) {
+    return std::tie(LHS.FID, LHS.Offs) < std::tie(RHS.FID, RHS.Offs);
+  }
+
+  friend bool operator>(FileOffset LHS, FileOffset RHS) {
+    return RHS < LHS;
+  }
+
+  friend bool operator>=(FileOffset LHS, FileOffset RHS) {
+    return !(LHS < RHS);
+  }
+
+  friend bool operator<=(FileOffset LHS, FileOffset RHS) {
+    return !(RHS < LHS);
+  }
+};
+
+} // namespace edit
+} // namespace clang
+
+#endif // LLVM_CLANG_EDIT_FILEOFFSET_H