From: Sean Callanan <scallanan@apple.com>
Date: Thu, 15 Mar 2012 16:33:08 +0000 (+0000)
Subject: When laying out an Objective-C object, consult
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=cad313bd7b28674e0e409e610c450a2411107443;p=clang

When laying out an Objective-C object, consult
the external source to complete the Decl if it
hasn't been completed already.

This fixes a crash in LLDB.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152807 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/AST/RecordLayoutBuilder.cpp b/lib/AST/RecordLayoutBuilder.cpp
index f73287503e..c2d9294a00 100644
--- a/lib/AST/RecordLayoutBuilder.cpp
+++ b/lib/AST/RecordLayoutBuilder.cpp
@@ -2313,6 +2313,8 @@ const ASTRecordLayout &
 ASTContext::getObjCLayout(const ObjCInterfaceDecl *D,
                           const ObjCImplementationDecl *Impl) const {
   // Retrieve the definition
+  if (D->hasExternalLexicalStorage() && !D->getDefinition())
+    getExternalSource()->CompleteType(const_cast<ObjCInterfaceDecl*>(D));
   D = D->getDefinition();
   assert(D && D->isThisDeclarationADefinition() && "Invalid interface decl!");