[cfe-commits] r74314 - in /cfe/trunk: include/clang/Basic/DiagnosticSemaKinds.td lib/Sema/SemaType.cpp test/CXX/dcl.decl/dcl.meaning/dcl.array/p1-cxx0x.cpp

[Anders Carlsson]

Author: andersca
Date: Fri Jun 26 14:33:28 2009
New Revision: 74314

URL: http://llvm.org/viewvc/llvm-project?rev=74314&view=rev
Log:
Can't have arrays of auto.

Added:
    cfe/trunk/test/CXX/dcl.decl/dcl.meaning/dcl.array/p1-cxx0x.cpp
Modified:
    cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
    cfe/trunk/lib/Sema/SemaType.cpp

Modified: cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td?rev=74314&r1=74313&r2=74314&view=diff

==============================================================================
--- cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td (original)
+++ cfe/trunk/include/clang/Basic/DiagnosticSemaKinds.td Fri Jun 26 14:33:28 2009
@@ -401,6 +401,8 @@
 // C++0x auto
 def err_auto_variable_cannot_appear_in_own_initializer : Error<
   "variable %0 declared with 'auto' type cannot appear in its own initializer">;
+def err_illegal_decl_array_of_auto : Error<
+  "'%0' declared as array of 'auto'">;
   
 // Objective-C++
 def err_objc_decls_may_only_appear_in_global_scope : Error<

Modified: cfe/trunk/lib/Sema/SemaType.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Sema/SemaType.cpp?rev=74314&r1=74313&r2=74314&view=diff

==============================================================================
--- cfe/trunk/lib/Sema/SemaType.cpp (original)
+++ cfe/trunk/lib/Sema/SemaType.cpp Fri Jun 26 14:33:28 2009
@@ -498,6 +498,12 @@
     return QualType();
   } 
 
+  if (Context.getCanonicalType(T) == Context.UndeducedAutoTy) {
+    Diag(Loc,  diag::err_illegal_decl_array_of_auto) 
+      << getPrintableNameForEntity(Entity);
+    return QualType();
+  }
+  
   if (const RecordType *EltTy = T->getAsRecordType()) {
     // If the element type is a struct or union that contains a variadic
     // array, accept it as a GNU extension: C99 6.7.2.1p2.

Added: cfe/trunk/test/CXX/dcl.decl/dcl.meaning/dcl.array/p1-cxx0x.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CXX/dcl.decl/dcl.meaning/dcl.array/p1-cxx0x.cpp?rev=74314&view=auto

==============================================================================
--- cfe/trunk/test/CXX/dcl.decl/dcl.meaning/dcl.array/p1-cxx0x.cpp (added)
+++ cfe/trunk/test/CXX/dcl.decl/dcl.meaning/dcl.array/p1-cxx0x.cpp Fri Jun 26 14:33:28 2009
@@ -0,0 +1,6 @@
+// RUN: clang-cc -fsyntax-only -verify -std=c++0x
+
+void f() {
+  int b[5];
+  auto a[5] = b; // expected-error{{'a' declared as array of 'auto'}}
+}