[clang] Remove FileEntry copy-constructor

Code cleanup: address FIXME in the file
include/clang/Basic/FileManager.h and remove 
copy-constructor of the class FileEntry.

Test plan: make check-clang

Differential revision: https://reviews.llvm.org/D22712

llvm-svn: 284782

1 files changed, 1 insertions, 9 deletions

diff --git a/clang/include/clang/Basic/FileManager.h b/clang/include/clang/Basic/FileManager.h
index 8539e8ee9ec..7bee4c59682 100644
--- a/clang/include/clang/Basic/FileManager.h
+++ b/clang/include/clang/Basic/FileManager.h
@@ -65,6 +65,7 @@ class FileEntry {
   mutable std::unique_ptr<vfs::File> File;
   friend class FileManager;
 
+  FileEntry(const FileEntry &) = delete;
   void operator=(const FileEntry &) = delete;
 
 public:
@@ -72,15 +73,6 @@ public:
       : UniqueID(0, 0), IsNamedPipe(false), InPCH(false), IsValid(false)
   {}
 
-  // FIXME: this is here to allow putting FileEntry in std::map.  Once we have
-  // emplace, we shouldn't need a copy constructor anymore.
-  /// Intentionally does not copy fields that are not set in an uninitialized
-  /// \c FileEntry.
-  FileEntry(const FileEntry &FE) : UniqueID(FE.UniqueID),
-      IsNamedPipe(FE.IsNamedPipe), InPCH(FE.InPCH), IsValid(FE.IsValid) {
-    assert(!isValid() && "Cannot copy an initialized FileEntry");
-  }
-
   StringRef getName() const { return Name; }
   StringRef tryGetRealPathName() const { return RealPathName; }
   bool isValid() const { return IsValid; }