tighten up operator= to ensure we don't get multiple owners with the same FD.

wouldn't move ctors be nice? :)


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@120255 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 1 deletions

diff --git a/include/clang/Basic/FileManager.h b/include/clang/Basic/FileManager.h
index 6718112d13..fbdf75ed9b 100644
--- a/include/clang/Basic/FileManager.h
+++ b/include/clang/Basic/FileManager.h
@@ -72,7 +72,12 @@ public:
 
   FileEntry(const FileEntry &FE) {
     memcpy(this, &FE, sizeof(FE));
-    assert(FD == -1 && "Cannot copy an file-owning FileEntry");
+    assert(FD == -1 && "Cannot copy a file-owning FileEntry");
+  }
+  
+  void operator=(const FileEntry &FE) {
+    memcpy(this, &FE, sizeof(FE));
+    assert(FD == -1 && "Cannot assign a file-owning FileEntry");
   }
 
   ~FileEntry();