pass the reason for failure up from MemoryBuffer and report it
in diagnostics when we fail to open a file. This allows us to
report things like:
$ clang test.c -I.
test.c:2:10: fatal error: error opening file './foo.h': Permission denied
#include "foo.h"
^
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90276 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Basic/SourceManager.cpp b/lib/Basic/SourceManager.cpp
index a85bef0..394f493 100644
--- a/lib/Basic/SourceManager.cpp
+++ b/lib/Basic/SourceManager.cpp
@@ -47,12 +47,12 @@
return Buffer ? Buffer->getBufferSize() : Entry->getSize();
}
-const llvm::MemoryBuffer *ContentCache::getBuffer() const {
+const llvm::MemoryBuffer *ContentCache::getBuffer(std::string *ErrorStr) const {
// Lazily create the Buffer for ContentCaches that wrap files.
if (!Buffer && Entry) {
// FIXME: Should we support a way to not have to do this check over
// and over if we cannot open the file?
- Buffer = MemoryBuffer::getFile(Entry->getName(), 0, Entry->getSize());
+ Buffer = MemoryBuffer::getFile(Entry->getName(), ErrorStr,Entry->getSize());
if (isTruncated())
const_cast<ContentCache *>(this)->truncateAt(TruncateAtLine,
TruncateAtColumn);