[PATCH] D123667: [clang][AST] Fix crash getting name of a template decl

[Tom Eccles via Phabricator via cfe-commits]

tblah created this revision.
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NamedDecl::getIdentifier can return a nullptr when DeclarationName::isIdentifier is false, which leads to a null pointer dereference when TypePrinter::printTemplateId calls ->getName().

NamedDecl::getName does the same thing in the successful case and returns an empty string in the failure case.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D123667

Files:
  clang/lib/AST/TypePrinter.cpp


Index: clang/lib/AST/TypePrinter.cpp
===================================================================
--- clang/lib/AST/TypePrinter.cpp
+++ clang/lib/AST/TypePrinter.cpp
@@ -1466,8 +1466,7 @@
     if (!Policy.SuppressScope)
       AppendScope(TD->getDeclContext(), OS, TD->getDeclName());
 
-    IdentifierInfo *II = TD->getIdentifier();
-    OS << II->getName();
+    OS << TD->getName();
   } else {
     T->getTemplateName().print(OS, Policy);
   }


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