[PATCH] D121063: [AST] Make the last element in the linked list null

[Bill Wendling via Phabricator via cfe-commits]

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The last element in a linked list should point to null, so that we can
identify when the linked list ends.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121063

Files:
  clang/lib/AST/DeclBase.cpp


Index: clang/lib/AST/DeclBase.cpp
===================================================================
--- clang/lib/AST/DeclBase.cpp
+++ clang/lib/AST/DeclBase.cpp
@@ -1344,6 +1344,10 @@
     PrevDecl = D;
   }
 
+  if (PrevDecl)
+    // Last item in the linked list should have a null next pointer.
+    PrevDecl->NextInContextAndBits.setPointer(nullptr);
+
   return std::make_pair(FirstNewDecl, PrevDecl);
 }
 


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