From: Axel Naumann <Axel.Naumann@cern.ch>
Date: Wed, 4 May 2011 12:59:24 +0000 (+0000)
Subject: From Vassil Vassilev:
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=69d891d45a29fdd0074ff3eb158694e95fef57e1;p=clang

From Vassil Vassilev:
Like in r126648, provide (empty) default implementation for pure virtual getMemoryBufferSizes(). Not all use cases have meaningful implementations.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130838 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/clang/AST/ExternalASTSource.h b/include/clang/AST/ExternalASTSource.h
index 6db2336412..846813adf7 100644
--- a/include/clang/AST/ExternalASTSource.h
+++ b/include/clang/AST/ExternalASTSource.h
@@ -211,7 +211,7 @@ public:
     return sizes;
   }
 
-  virtual void getMemoryBufferSizes(MemoryBufferSizes &sizes) const = 0;
+  virtual void getMemoryBufferSizes(MemoryBufferSizes &sizes) const;
 
 protected:
   static DeclContextLookupResult
diff --git a/lib/AST/ExternalASTSource.cpp b/lib/AST/ExternalASTSource.cpp
index 89bf56db1a..f428318a21 100644
--- a/lib/AST/ExternalASTSource.cpp
+++ b/lib/AST/ExternalASTSource.cpp
@@ -57,3 +57,5 @@ ExternalASTSource::FindExternalLexicalDecls(const DeclContext *DC,
                                          llvm::SmallVectorImpl<Decl*> &Result) {
   return true;
 }
+
+void ExternalASTSource::getMemoryBufferSizes(MemoryBufferSizes &sizes) const { }