Support/FileSystem: Add directory_iterator implementation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120989 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 0 deletions

diff --git a/lib/Support/PathV2.cpp b/lib/Support/PathV2.cpp
index 73896edecc..639b323a82 100644
--- a/lib/Support/PathV2.cpp
+++ b/lib/Support/PathV2.cpp
@@ -688,6 +688,16 @@ error_code create_directories(const Twine &path, bool &existed) {
   return create_directory(p, existed);
 }
 
+void directory_entry::replace_filename(const Twine &filename, file_status st,
+                                       file_status symlink_st) {
+  SmallString<128> path(Path.begin(), Path.end());
+  path::remove_filename(path);
+  path::append(path, filename);
+  Path = path.str();
+  Status = st;
+  SymlinkStatus = symlink_st;
+}
+
 } // end namespace fs
 } // end namespace sys
 } // end namespace llvm