From: Argyrios Kyrtzidis <akyrtzi@gmail.com>
Date: Thu, 5 Jan 2012 00:19:03 +0000 (+0000)
Subject: Sanity checks in SourceManager::getFileEntryForID() and SourceManager::getFileEntryFo... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=39afcafe1c0f66db67648b5230b700659448432c;p=clang

Sanity checks in SourceManager::getFileEntryForID() and SourceManager::getFileEntryForSLocEntry()
to make sure we do not crash. rdar://10594186

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147576 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/Basic/SourceManager.h b/include/clang/Basic/SourceManager.h
index 375aea0ee9..d08d5368d1 100644
--- a/include/clang/Basic/SourceManager.h
+++ b/include/clang/Basic/SourceManager.h
@@ -750,13 +750,19 @@ public:
     if (MyInvalid || !Entry.isFile())
       return 0;
 
-    return Entry.getFile().getContentCache()->OrigEntry;
+    const SrcMgr::ContentCache *Content = Entry.getFile().getContentCache();
+    if (!Content)
+      return 0;
+    return Content->OrigEntry;
   }
 
   /// Returns the FileEntry record for the provided SLocEntry.
   const FileEntry *getFileEntryForSLocEntry(const SrcMgr::SLocEntry &sloc) const
   {
-    return sloc.getFile().getContentCache()->OrigEntry;
+    const SrcMgr::ContentCache *Content = sloc.getFile().getContentCache();
+    if (!Content)
+      return 0;
+    return Content->OrigEntry;
   }
 
   /// getBufferData - Return a StringRef to the source buffer data for the