[clang] a8648fd - Replace getAs with castAs to fix null dereference static analyzer warning.

[Simon Pilgrim via cfe-commits]

Author: Simon Pilgrim
Date: 2020-03-05T15:28:54Z
New Revision: a8648fd19aecfe2aed3ce529f488930cc37db4c2

URL: https://github.com/llvm/llvm-project/commit/a8648fd19aecfe2aed3ce529f488930cc37db4c2
DIFF: https://github.com/llvm/llvm-project/commit/a8648fd19aecfe2aed3ce529f488930cc37db4c2.diff

LOG: Replace getAs with castAs to fix null dereference static analyzer warning.

Use castAs as we know the cast should succeed and we're dereferencing in the mangleBareFunctionType call.

Added: 
    

Modified: 
    clang/lib/AST/ItaniumMangle.cpp

Removed: 
    


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diff  --git a/clang/lib/AST/ItaniumMangle.cpp b/clang/lib/AST/ItaniumMangle.cpp
index 5d485e000750..6d21869e2f11 100644
--- a/clang/lib/AST/ItaniumMangle.cpp
+++ b/clang/lib/AST/ItaniumMangle.cpp
@@ -1776,8 +1776,8 @@ void CXXNameMangler::mangleLambda(const CXXRecordDecl *Lambda) {
 void CXXNameMangler::mangleLambdaSig(const CXXRecordDecl *Lambda) {
   for (auto *D : Lambda->getLambdaExplicitTemplateParameters())
     mangleTemplateParamDecl(D);
-  const FunctionProtoType *Proto = Lambda->getLambdaTypeInfo()->getType()->
-                                   getAs<FunctionProtoType>();
+  auto *Proto =
+      Lambda->getLambdaTypeInfo()->getType()->castAs<FunctionProtoType>();
   mangleBareFunctionType(Proto, /*MangleReturnType=*/false,
                          Lambda->getLambdaStaticInvoker());
 }