commit b7605e84123a331db0338400ef740c3a7a47a1eb
author Sebastian Redl <sebastian.redl@getdesigned.at> Sun Dec 28 15:28:59 2008 +0000
committer Sebastian Redl <sebastian.redl@getdesigned.at> Sun Dec 28 15:28:59 2008 +0000
tree f72d8fcea1a6e4db4a415065d4e7d0eff5e96c96
parent e85053de082beb859970dc80f8647c77977fc07d

Diagnose declarations that don't declare anything, and fix PR3020.
Examples:
int;
typedef int;

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61454 91177308-0d34-0410-b5e6-96231b3b80d8

test/Parser/cxx-template-decl.cpp

diff --git a/test/Parser/cxx-template-decl.cpp b/test/Parser/cxx-template-decl.cpp
index 5381377..79b04cf 100644
--- a/test/Parser/cxx-template-decl.cpp
+++ b/test/Parser/cxx-template-decl.cpp
@@ -5,10 +5,12 @@
 template  x;            // expected-error {{expected '<' after 'template'}}
 export template x;      // expected-error {{expected '<' after 'template'}} \
                         // expected-note {{exported templates are unsupported}}
-template < ;            // expected-error {{parse error}}
-template <template X> ; // expected-error {{expected '<' after 'template'}}
-template <template <typename> > ;       // expected-error {{expected 'class' before '>'}}
-template <template <typename> Foo> ;    // expected-error {{expected 'class' before 'Foo'}}
+// See Sema::ParsedFreeStandingDeclSpec about the double diagnostic. This is
+// because ParseNonTypeTemplateParameter starts parsing a DeclSpec.
+template < ;            // expected-error {{parse error}} expected-error {{declaration does not declare anything}}
+template <template X> struct Err1; // expected-error {{expected '<' after 'template'}}
+template <template <typename> > struct Err2;       // expected-error {{expected 'class' before '>'}}
+template <template <typename> Foo> struct Err3;    // expected-error {{expected 'class' before 'Foo'}}
 
 // Template function declarations
 template <typename T> void foo();

test/Sema/decl-invalid.c

diff --git a/test/Sema/decl-invalid.c b/test/Sema/decl-invalid.c
index 767d6e6..78a9ee1 100644
--- a/test/Sema/decl-invalid.c
+++ b/test/Sema/decl-invalid.c
@@ -1,6 +1,7 @@
 // RUN: clang %s -fsyntax-only -verify
 
-typedef union <anonymous> __mbstate_t;  // expected-error {{declaration of anonymous union must be a definition}}
+// See Sema::ParsedFreeStandingDeclSpec about the double diagnostic
+typedef union <anonymous> __mbstate_t;  // expected-error {{declaration of anonymous union must be a definition}} expected-error {{declaration does not declare anything}}
 
 
 // PR2017
@@ -9,3 +10,9 @@
   int r[x()];  // expected-error {{size of array has non-integer type 'void'}}
 }
 
+int; // expected-error {{declaration does not declare anything}}
+typedef int; // expected-error {{declaration does not declare anything}}
+const int; // expected-error {{declaration does not declare anything}}
+struct; // expected-error {{declaration of anonymous struct must be a definition}} // expected-error {{declaration does not declare anything}}
+typedef int I;
+I; // expected-error {{declaration does not declare anything}}

test/SemaCXX/class.cpp

diff --git a/test/SemaCXX/class.cpp b/test/SemaCXX/class.cpp
index b7d1ca3..7e06415 100644
--- a/test/SemaCXX/class.cpp
+++ b/test/SemaCXX/class.cpp
@@ -100,4 +100,8 @@
 void ogfn()
 {
   mutable int ml; // expected-error {{error: 'mutable' can only be applied to member variables}}
+
+  // PR3020: This used to crash due to double ownership of C4.
+  struct C4;
+  C4; // expected-error {{declaration does not declare anything}}
 }