Add a 'RawPath' parameter to the PPCallbacks interface. This allows

clients to observe the exact path through which an #included file was
located. This is very useful when trying to record and replay inclusion
operations without it beind influenced by the aggressive caching done
inside the FileManager to avoid redundant system calls and filesystem
operations.

The work to compute and return this is only done in the presence of
callbacks, so it should have no effect on normal compilation.

Patch by Manuel Klimek.

llvm-svn: 127742

1 files changed, 8 insertions, 6 deletions

diff --git a/clang/lib/Lex/PreprocessingRecord.cpp b/clang/lib/Lex/PreprocessingRecord.cpp
index 3a43ac11e4e..b7f6e75c47c 100644
--- a/clang/lib/Lex/PreprocessingRecord.cpp
+++ b/clang/lib/Lex/PreprocessingRecord.cpp
@@ -146,12 +146,14 @@ void PreprocessingRecord::MacroUndefined(const Token &Id,
     MacroDefinitions.erase(Pos);
 }
 
-void PreprocessingRecord::InclusionDirective(SourceLocation HashLoc,
-                                             const clang::Token &IncludeTok, 
-                                             llvm::StringRef FileName, 
-                                             bool IsAngled, 
-                                             const FileEntry *File,
-                                           clang::SourceLocation EndLoc) {
+void PreprocessingRecord::InclusionDirective(
+    SourceLocation HashLoc,
+    const clang::Token &IncludeTok,
+    llvm::StringRef FileName,
+    bool IsAngled,
+    const FileEntry *File,
+    clang::SourceLocation EndLoc,
+    const llvm::SmallVectorImpl<char> &RawPath) {
   InclusionDirective::InclusionKind Kind = InclusionDirective::Include;
   
   switch (IncludeTok.getIdentifierInfo()->getPPKeywordID()) {