[clang] 6d56823 - SemaExpr.cpp - use castAs<> instead of getAs<> as we dereference the pointer directly. NFCI.

[Simon Pilgrim via cfe-commits]

Author: Simon Pilgrim
Date: 2020-11-25T11:38:29Z
New Revision: 6d56823116820962984cdd535cbed1191be696c9

URL: https://github.com/llvm/llvm-project/commit/6d56823116820962984cdd535cbed1191be696c9
DIFF: https://github.com/llvm/llvm-project/commit/6d56823116820962984cdd535cbed1191be696c9.diff

LOG: SemaExpr.cpp - use castAs<> instead of getAs<> as we dereference the pointer directly. NFCI.

castAs<> will assert the correct cast type instead of just returning null, which we then try to dereference immediately.

Added: 
    

Modified: 
    clang/lib/Sema/SemaExpr.cpp

Removed: 
    


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diff  --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index 5580cdf136914..859caed8fd866 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -15166,10 +15166,10 @@ void Sema::ActOnBlockArguments(SourceLocation CaretLoc, Declarator &ParamInfo,
   CurBlock->TheDecl->setSignatureAsWritten(Sig);
   CurBlock->FunctionType = T;
 
-  const FunctionType *Fn = T->getAs<FunctionType>();
+  const auto *Fn = T->castAs<FunctionType>();
   QualType RetTy = Fn->getReturnType();
   bool isVariadic =
-    (isa<FunctionProtoType>(Fn) && cast<FunctionProtoType>(Fn)->isVariadic());
+      (isa<FunctionProtoType>(Fn) && cast<FunctionProtoType>(Fn)->isVariadic());
 
   CurBlock->TheDecl->setIsVariadic(isVariadic);