From: John McCall <rjmccall@apple.com>
Date: Fri, 23 Oct 2009 01:28:53 +0000 (+0000)
Subject: FunctionTypeLocs don't necessarily provide ParmVarDecls, so don't crash if
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=86acc2a0ea327bce89b024b23ee071708da98d2f;p=clang

FunctionTypeLocs don't necessarily provide ParmVarDecls, so don't crash if
one was PCH'ed without any.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@84920 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Frontend/PCHReader.cpp b/lib/Frontend/PCHReader.cpp
index 7dc60f8e99..e804bfc90e 100644
--- a/lib/Frontend/PCHReader.cpp
+++ b/lib/Frontend/PCHReader.cpp
@@ -2065,7 +2065,7 @@ void TypeLocReader::VisitFunctionTypeLoc(FunctionTypeLoc TL) {
   TL.setLParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
   TL.setRParenLoc(SourceLocation::getFromRawEncoding(Record[Idx++]));
   for (unsigned i = 0, e = TL.getNumArgs(); i != e; ++i) {
-    TL.setArg(i, cast<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
+    TL.setArg(i, cast_or_null<ParmVarDecl>(Reader.GetDecl(Record[Idx++])));
   }
 }
 void TypeLocReader::VisitFunctionProtoTypeLoc(FunctionProtoTypeLoc TL) {