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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/abstract_type_6.f03
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+! { dg-do compile }
+! Test the fix for PR43266, in which an ICE followed correct error messages.
+!
+! Contributed by Tobias Burnus <burnus@gcc.gnu.org>
+! Reported in http://groups.google.ca/group/comp.lang.fortran/browse_thread/thread/f5ec99089ea72b79
+!
+!----------------
+! library code
+
+module m
+TYPE, ABSTRACT :: top
+CONTAINS
+ PROCEDURE(xxx), DEFERRED :: proc_a ! { dg-error "must be a module procedure" }
+ ! some useful default behaviour
+ PROCEDURE :: proc_c => top_c ! { dg-error "must be a module procedure" }
+END TYPE top
+
+! Concrete middle class with useful behaviour
+TYPE, EXTENDS(top) :: middle
+CONTAINS
+ ! do nothing, empty proc just to make middle concrete
+ PROCEDURE :: proc_a => dummy_middle_a ! { dg-error "must be a module procedure" }
+ ! some useful default behaviour
+ PROCEDURE :: proc_b => middle_b ! { dg-error "must be a module procedure" }
+END TYPE middle
+
+!----------------
+! client code
+
+TYPE, EXTENDS(middle) :: bottom
+CONTAINS
+ ! useful proc to satisfy deferred procedure in top. Because we've
+ ! extended middle we wouldn't get told off if we forgot this.
+ PROCEDURE :: proc_a => bottom_a ! { dg-error "must be a module procedure" }
+ ! calls middle%proc_b and then provides extra behaviour
+ PROCEDURE :: proc_b => bottom_b
+ ! calls top_c and then provides extra behaviour
+ PROCEDURE :: proc_c => bottom_c
+END TYPE bottom
+contains
+SUBROUTINE bottom_b(obj)
+ CLASS(Bottom) :: obj
+ CALL obj%middle%proc_b ! { dg-error "should be a SUBROUTINE" }
+ ! other stuff
+END SUBROUTINE bottom_b
+
+SUBROUTINE bottom_c(obj)
+ CLASS(Bottom) :: obj
+ CALL top_c(obj)
+ ! other stuff
+END SUBROUTINE bottom_c
+end module
+! { dg-final { cleanup-modules "m" } }