[clang] 3b417b7 - Fix "pointer is null" static analyzer warning. NFCI.

[Simon Pilgrim via cfe-commits]

Author: Simon Pilgrim
Date: 2020-01-07T13:41:52Z
New Revision: 3b417b7cf73b6b5a2953ad4c8178b4394ea4f20e

URL: https://github.com/llvm/llvm-project/commit/3b417b7cf73b6b5a2953ad4c8178b4394ea4f20e
DIFF: https://github.com/llvm/llvm-project/commit/3b417b7cf73b6b5a2953ad4c8178b4394ea4f20e.diff

LOG: Fix "pointer is null" static analyzer warning. NFCI.

Added: 
    

Modified: 
    clang/lib/AST/Comment.cpp

Removed: 
    


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diff  --git a/clang/lib/AST/Comment.cpp b/clang/lib/AST/Comment.cpp
index 23dc7ba93591..a02cc9d119fe 100644
--- a/clang/lib/AST/Comment.cpp
+++ b/clang/lib/AST/Comment.cpp
@@ -379,11 +379,11 @@ StringRef TParamCommandComment::getParamName(const FullComment *FC) const {
   assert(isPositionValid());
   const TemplateParameterList *TPL = FC->getDeclInfo()->TemplateParameters;
   for (unsigned i = 0, e = getDepth(); i != e; ++i) {
-    if (i == e-1)
+    assert(TPL && "Unknown TemplateParameterList");
+    if (i == e - 1)
       return TPL->getParam(getIndex(i))->getName();
     const NamedDecl *Param = TPL->getParam(getIndex(i));
-    if (const TemplateTemplateParmDecl *TTP =
-          dyn_cast<TemplateTemplateParmDecl>(Param))
+    if (auto *TTP = dyn_cast<TemplateTemplateParmDecl>(Param))
       TPL = TTP->getTemplateParameters();
   }
   return "";