diff options
| author | charlet <charlet@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-06-14 13:36:42 +0000 |
|---|---|---|
| committer | charlet <charlet@138bc75d-0d04-0410-961f-82ee72b054a4> | 2010-06-14 13:36:42 +0000 |
| commit | 2c3ae800c05857ca3bbf0718754c657dd27d91f8 (patch) | |
| tree | ffd9fb930548d3afa4848ddb0346bf0494d1ff65 | |
| parent | 3755dbc5803218c7b66e96bf8330379c78cff9c6 (diff) | |
| download | gcc-2c3ae800c05857ca3bbf0718754c657dd27d91f8.tar.gz | |
2010-06-14 Ed Schonberg <schonberg@adacore.com>
* sem_ch8.adb (Find_Type): The attribute 'class cannot be applied to
an untagged incomplete type that is a limited view.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@160741 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ada/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/ada/sem_ch8.adb | 29 |
2 files changed, 25 insertions, 9 deletions
diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog index 9f8ca7dfa91..19b0aa2095f 100644 --- a/gcc/ada/ChangeLog +++ b/gcc/ada/ChangeLog @@ -1,3 +1,8 @@ +2010-06-14 Ed Schonberg <schonberg@adacore.com> + + * sem_ch8.adb (Find_Type): The attribute 'class cannot be applied to + an untagged incomplete type that is a limited view. + 2010-06-14 Sergey Rybin <rybin@adacore.com> * gnat_ugn.texi: Add description of '-cargs gcc_switches' to gnatstub diff --git a/gcc/ada/sem_ch8.adb b/gcc/ada/sem_ch8.adb index ad722430890..c10ab2b53c4 100644 --- a/gcc/ada/sem_ch8.adb +++ b/gcc/ada/sem_ch8.adb @@ -5624,7 +5624,19 @@ package body Sem_Ch8 is -- It is legal to denote the class type of an incomplete -- type. The full type will have to be tagged, of course. -- In Ada 2005 this usage is declared obsolescent, so we - -- warn accordingly. + -- warn accordingly. This usage is only legal if the type + -- is completed in the current scope, and not for a limited + -- view of a type. + + if not Is_Tagged_Type (T) + and then Ada_Version >= Ada_05 + then + if From_With_Type (T) then + Error_Msg_N + ("prefix of Class attribute must be tagged", N); + Set_Etype (N, Any_Type); + Set_Entity (N, Any_Type); + return; -- ??? This test is temporarily disabled (always False) -- because it causes an unwanted warning on GNAT sources @@ -5632,14 +5644,13 @@ package body Sem_Ch8 is -- Feature). Once this issue is cleared in the sources, it -- can be enabled. - if not Is_Tagged_Type (T) - and then Ada_Version >= Ada_05 - and then Warn_On_Obsolescent_Feature - and then False - then - Error_Msg_N - ("applying 'Class to an untagged incomplete type" - & " is an obsolescent feature (RM J.11)", N); + elsif Warn_On_Obsolescent_Feature + and then False + then + Error_Msg_N + ("applying 'Class to an untagged incomplete type" + & " is an obsolescent feature (RM J.11)", N); + end if; end if; Set_Is_Tagged_Type (T); |