[Bug fortran/57590] [OOP] wrong code with class variables of different shapes

[janus at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57590

--- Comment #4 from janus at gcc dot gnu.org ---
(In reply to janus from comment #3)
> I think in general it's ok to use the same class container type for all of
> them, but we should not fix the array spec of the _data component at compile
> time (but use something like AS_ASSUMED_SHAPE instead?).

In fact the following simple patch makes the test case produce the expected
output:


Index: gcc/fortran/class.c
===================================================================
--- gcc/fortran/class.c    (revision 201871)
+++ gcc/fortran/class.c    (working copy)
@@ -637,6 +637,8 @@ gfc_build_class_symbol (gfc_typespec *ts, symbol_a
       c->attr.codimension = attr->codimension;
       c->attr.abstract = fclass->attr.abstract;
       c->as = (*as);
+      if (c->as->type == AS_EXPLICIT)
+    c->as->type = AS_ASSUMED_SHAPE;
       c->initializer = NULL;

       /* Add component '_vptr'.  */


Will check if this survives a regtest.