[Bug ada/29015] Ada 2005 observer pattern with mutually dependent packages and containers produces compiler error
--- Comment #9 from sam at gcc dot gnu dot org 2008-04-16 12:38 --- Subject: Bug 29015 Author: sam Date: Wed Apr 16 12:37:38 2008 New Revision: 134345 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=134345 Log: gcc/ada/ PR ada/29015 * sem_ch12.adb (Instantiate_Type): Check whether the full view of the type is known instead of the underlying type. gcc/testsuite/ PR ada/29015 * gnat.dg/incomplete1.ads, gnat.dg/incomplete2.ads, gnat.dg/incomplete2.adb: New. Added: trunk/gcc/testsuite/gnat.dg/incomplete1.ads trunk/gcc/testsuite/gnat.dg/incomplete2.adb trunk/gcc/testsuite/gnat.dg/incomplete2.ads Modified: trunk/gcc/ada/ChangeLog trunk/gcc/ada/sem_ch12.adb trunk/gcc/testsuite/ChangeLog -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29015
[Bug ada/29015] Ada 2005 observer pattern with mutually dependent packages and containers produces compiler error
--- Comment #10 from sam at gcc dot gnu dot org 2008-04-16 12:44 --- This is fixed in the current GCC SVN. -- sam at gcc dot gnu dot org changed: What|Removed |Added Status|ASSIGNED|RESOLVED Resolution||FIXED Target Milestone|--- |4.4.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29015
[Bug ada/29015] Ada 2005 observer pattern with mutually dependent packages and containers produces compiler error
--- Comment #5 from laguest at archangeli dot demon dot co dot uk 2008-04-09 19:45 --- This is still a problem on 4.4.0 trunk. Luke. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29015
[Bug ada/29015] Ada 2005 observer pattern with mutually dependent packages and containers produces compiler error
--- Comment #6 from ludovic at ludovic-brenta dot org 2008-04-09 20:10 --- Reduced test case: package Observers is type Observer is tagged null record; type Observer_Access is access all Observers.Observer'Class; end Observers; limited with Observers; with Ada.Containers.Doubly_Linked_Lists; package Subjects is function Equals(Left, Right : access Observers.Observer) return Boolean; package Observer_Lists is new Ada.Containers.Doubly_Linked_Lists(Observers.Observer_Access, Equals); end Subjects; with Observers; -- this line triggers the bug package body Subjects is function Equals(Left, Right : access Observers.Observer) return Boolean is begin return False; end Equals; end Subjects; With the line that triggers the bug: gcc-4.1 -c -gnat05 subjects.adb +===GNAT BUG DETECTED==+ | 4.1.3 20070518 (prerelease) (Debian 4.1.2-8) (x86_64-pc-linux-gnu) | | Assert_Failure atree.adb:812 | | Error detected at subjects.ads:8:3 | gcc-4.3 -c -gnat05 subjects.adb +===GNAT BUG DETECTED==+ | 4.3.1 20080401 (prerelease) (x86_64-pc-linux-gnu) Assert_Failure atree.adb:886| | Error detected at subjects.ads:8:3 | Without the line that triggers the bug: gcc-4.1 -c -gnat05 subjects.adb subjects.ads:9:49: premature use of incomplete type subjects.ads:9:49: instantiation abandoned gcc-4.3 -c -gnat05 subjects.adb subjects.ads:9:49: premature use of incomplete type subjects.ads:9:49: instantiation abandoned -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29015
[Bug ada/29015] Ada 2005 observer pattern with mutually dependent packages and containers produces compiler error
--- Comment #7 from ludovic at ludovic-brenta dot org 2008-04-09 20:25 --- Further reduced test case: replace observers.ads with: package Observers is type Observer is new Integer; type Observer_Access is access Observer; end Observers; and the bug is still there. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29015
[Bug ada/29015] Ada 2005 observer pattern with mutually dependent packages and containers produces compiler error
--- Comment #8 from sam at gcc dot gnu dot org 2008-04-09 20:40 --- Yes, the bug manifests when the view on the type is limited at this point *but* we know the underlying type (because of a non-limited with for example). This triggers it if you compile p2.adb: package P1 is type T is null record; end P1; limited with P1; package P2 is pragma Elaborate_Body; generic type T is private; package G is end G; package I1 is new G (P1.T); end P2; with P1; package body P2 is end P2; I'm testing a fix. -- sam at gcc dot gnu dot org changed: What|Removed |Added AssignedTo|unassigned at gcc dot gnu |sam at gcc dot gnu dot org |dot org | Status|NEW |ASSIGNED Last reconfirmed|2007-12-07 14:01:58 |2008-04-09 20:40:46 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29015
[Bug ada/29015] Ada 2005 observer pattern with mutually dependent packages and containers produces compiler error
--- Comment #4 from sam at gcc dot gnu dot org 2007-12-07 14:01 --- Confirmed on SVN trunk +===GNAT BUG DETECTED==+ | 4.3.0 20071207 (experimental) (i686-pc-linux-gnu) Assert_Failure atree.adb:962| | Error detected at subjects.ads:19:3 | -- sam at gcc dot gnu dot org changed: What|Removed |Added CC||sam at gcc dot gnu dot org Last reconfirmed|2006-09-18 17:55:33 |2007-12-07 14:01:58 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29015
[Bug ada/29015] Ada 2005 observer pattern with mutually dependent packages and containers produces compiler error
--- Comment #2 from laguest at archangeli dot demon dot co dot uk 2006-09-18 16:11 --- Seems this was an error based on the use of a limited view of a type. I don't know whether this is actually allowed in the Ada 2005 standard, i.e passing a reference to a limited view to a container? Should this bug be left open? Luke. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29015
[Bug ada/29015] Ada 2005 observer pattern with mutually dependent packages and containers produces compiler error
--- Comment #3 from laurent at guerby dot net 2006-09-18 17:55 --- Confirmed. $ gcc -c -gnat05 test_observers.adb +===GNAT BUG DETECTED==+ | 4.2.0 20060915 (experimental) (x86_64-unknown-linux-gnu) Assert_Failure atree.adb:812| | Error detected at subjects.ads:19:3 | I'm not sure this is valid too, so I'm tagging this as ICE on invalid code (in all cases this is a bug since the compiler should never ICE). -- laurent at guerby dot net changed: What|Removed |Added Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Keywords||ice-on-invalid-code Last reconfirmed|-00-00 00:00:00 |2006-09-18 17:55:33 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29015
[Bug ada/29015] Ada 2005 observer pattern with mutually dependent packages and containers produces compiler error
--- Comment #1 from laguest at archangeli dot demon dot co dot uk 2006-09-17 19:42 --- Using the current SVN source (17/09/06) I get a slightly different error (with the same source): gcc -c -gnat05 test_observers.adb +===GNAT BUG DETECTED==+ | 4.2.0 20060917 (experimental) (i686-pc-linux-gnu) Assert_Failure atree.adb:812| | Error detected at subjects.ads:17:3 | | Please submit a bug report; see http://gcc.gnu.org/bugs.html.| | Use a subject line meaningful to you and us to track the bug.| | Include the entire contents of this bug box in the report. | | Include the exact gcc or gnatmake command that you entered. | | Also include sources listed below in gnatchop format | | (concatenated together with no headers between files). | +==+ Please include these source files with error report Note that list may not be accurate in some cases, so please double check that the problem can still be reproduced with the set of files listed. test_observers.adb my_observer.ads observers.ads subjects.ads compilation abandoned gnatmake: test_observers.adb compilation error -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29015
[Bug ada/29015] Ada 2005 observer pattern with mutually dependent packages and containers produces compiler error
-- ebotcazou at gcc dot gnu dot org changed: What|Removed |Added Severity|blocker |normal http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29015
