change the 'is directory' indicator to be a null-or-not

pointer that is passed down through the APIs, and make
FileSystemStatCache::get be the one that filters out
directory lookups that hit files.  This also paves the
way to have stat queries be able to return opened files.

llvm-svn: 120060

1 files changed, 3 insertions, 2 deletions

diff --git a/clang/lib/Frontend/CacheTokens.cpp b/clang/lib/Frontend/CacheTokens.cpp
index 2a7af8a8c35..ae4cdb5063a 100644
--- a/clang/lib/Frontend/CacheTokens.cpp
+++ b/clang/lib/Frontend/CacheTokens.cpp
@@ -517,8 +517,9 @@ public:
   StatListener(PTHMap &pm) : PM(pm) {}
   ~StatListener() {}
 
-  LookupResult getStat(const char *Path, struct stat &StatBuf) {
-    LookupResult Result = statChained(Path, StatBuf);
+  LookupResult getStat(const char *Path, struct stat &StatBuf,
+                       int *FileDescriptor) {
+    LookupResult Result = statChained(Path, StatBuf, FileDescriptor);
 
     if (Result == CacheMissing) // Failed 'stat'.
       PM.insert(PTHEntryKeyVariant(Path), PTHEntry());