[PATCH] D33833: Fix PR 33189: Clang assertion on template destructor declaration

[Kuang He via Phabricator via cfe-commits]

kuang_he updated this revision to Diff 101601.
kuang_he added a comment.

Patch updated addressing comment.


https://reviews.llvm.org/D33833

Files:
  lib/AST/DeclCXX.cpp
  test/SemaCXX/PR33189.cpp


Index: test/SemaCXX/PR33189.cpp
===================================================================
--- /dev/null
+++ test/SemaCXX/PR33189.cpp
@@ -0,0 +1,7 @@
+// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s
+
+class U
+{
+  template <class T>
+  ~U() { } // expected-error{{destructor cannot be declared as a template}}
+};
Index: lib/AST/DeclCXX.cpp
===================================================================
--- lib/AST/DeclCXX.cpp
+++ lib/AST/DeclCXX.cpp
@@ -1417,11 +1417,8 @@
                                           Context.getCanonicalType(ClassType));
 
   DeclContext::lookup_result R = lookup(Name);
-  if (R.empty())
-    return nullptr;
 
-  CXXDestructorDecl *Dtor = cast<CXXDestructorDecl>(R.front());
-  return Dtor;
+  return R.empty() ? nullptr : dyn_cast<CXXDestructorDecl>(R.front());
 }
 
 bool CXXRecordDecl::isAnyDestructorNoReturn() const {



Index: test/SemaCXX/PR33189.cpp
===================================================================
--- /dev/null
+++ test/SemaCXX/PR33189.cpp
@@ -0,0 +1,7 @@
+// RUN: %clang_cc1 -fsyntax-only -std=c++11 -verify %s
+
+class U
+{
+  template <class T>
+  ~U() { } // expected-error{{destructor cannot be declared as a template}}
+};
Index: lib/AST/DeclCXX.cpp
===================================================================
--- lib/AST/DeclCXX.cpp
+++ lib/AST/DeclCXX.cpp
@@ -1417,11 +1417,8 @@
                                           Context.getCanonicalType(ClassType));
 
   DeclContext::lookup_result R = lookup(Name);
-  if (R.empty())
-    return nullptr;
 
-  CXXDestructorDecl *Dtor = cast<CXXDestructorDecl>(R.front());
-  return Dtor;
+  return R.empty() ? nullptr : dyn_cast<CXXDestructorDecl>(R.front());
 }
 
 bool CXXRecordDecl::isAnyDestructorNoReturn() const {

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