[PATCH] D60523: [clang] Bugfixe for 41400

[Gauthier via Phabricator via cfe-commits]

Tyker created this revision.
Tyker added a reviewer: rsmith.
Herald added a project: clang.
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this is a bugfixe for bugtracker <https://bugs.llvm.org/show_bug.cgi?id=41400>

added nullptr check at the relevent place and test


Repository:
  rC Clang

https://reviews.llvm.org/D60523

Files:
  clang/lib/Sema/SemaExprCXX.cpp
  clang/test/SemaCXX/using-decl-1.cpp


Index: clang/test/SemaCXX/using-decl-1.cpp
===================================================================
--- clang/test/SemaCXX/using-decl-1.cpp
+++ clang/test/SemaCXX/using-decl-1.cpp
@@ -396,3 +396,10 @@
   using N::Y;
   using N::Z;
 }
+
+// expected-error@+5 {{requires a qualified name}}
+// expected-error@+4 {{expected ';'}}
+// expected-error@+3 {{expected '}'}}
+// expected-note@+2 {{to match this '{'}}
+// expected-error@+1 {{expected ';'}}
+template<class> struct S { using S
\ No newline at end of file
Index: clang/lib/Sema/SemaExprCXX.cpp
===================================================================
--- clang/lib/Sema/SemaExprCXX.cpp
+++ clang/lib/Sema/SemaExprCXX.cpp
@@ -90,7 +90,7 @@
   // When naming a constructor as a member of a dependent context (eg, in a
   // friend declaration or an inherited constructor declaration), form an
   // unresolved "typename" type.
-  if (CurClass->isDependentContext() && !EnteringContext) {
+  if (CurClass->isDependentContext() && !EnteringContext && SS.getScopeRep()) {
     QualType T = Context.getDependentNameType(ETK_None, SS.getScopeRep(), &II);
     return ParsedType::make(T);
   }



Index: clang/test/SemaCXX/using-decl-1.cpp
===================================================================
--- clang/test/SemaCXX/using-decl-1.cpp
+++ clang/test/SemaCXX/using-decl-1.cpp
@@ -396,3 +396,10 @@
   using N::Y;
   using N::Z;
 }
+
+// expected-error@+5 {{requires a qualified name}}
+// expected-error@+4 {{expected ';'}}
+// expected-error@+3 {{expected '}'}}
+// expected-note@+2 {{to match this '{'}}
+// expected-error@+1 {{expected ';'}}
+template<class> struct S { using S
\ No newline at end of file
Index: clang/lib/Sema/SemaExprCXX.cpp
===================================================================
--- clang/lib/Sema/SemaExprCXX.cpp
+++ clang/lib/Sema/SemaExprCXX.cpp
@@ -90,7 +90,7 @@
   // When naming a constructor as a member of a dependent context (eg, in a
   // friend declaration or an inherited constructor declaration), form an
   // unresolved "typename" type.
-  if (CurClass->isDependentContext() && !EnteringContext) {
+  if (CurClass->isDependentContext() && !EnteringContext && SS.getScopeRep()) {
     QualType T = Context.getDependentNameType(ETK_None, SS.getScopeRep(), &II);
     return ParsedType::make(T);
   }

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