re PR fortran/45827 ([OOP] mio_component_ref(): Component not found)

2010-12-28  Janus Weil  <janus@gcc.gnu.org>
	    Daniel Franke  <dfranke@gcc.gnu.org>

	PR fortran/45827
	* module.c (mio_component_ref): Handle components of CLASS variables.


2010-12-28  Janus Weil  <janus@gcc.gnu.org>

	PR fortran/45827
	* gfortran.dg/class_32.f90: New.

Co-Authored-By: Daniel Franke <dfranke@gcc.gnu.org>

From-SVN: r168302

gcc/fortran/ChangeLog

+2010-12-28  Janus Weil  <janus@gcc.gnu.org>
+	    Daniel Franke  <dfranke@gcc.gnu.org>
+
+	PR fortran/45827
+	* module.c (mio_component_ref): Handle components of CLASS variables.
+
 2010-12-27  Thomas Koenig  <tkoenig@gcc.gnu.org>
 
 	* dump-parse-tree.c (show_typespec):  Also show character kind.

gcc/fortran/module.c

@@ -2311,6 +2311,9 @@ mio_component_ref (gfc_component **cp, gfc_symbol *sym)
     {
       mio_internal_string (name);
 
+      if (sym && sym->attr.is_class)
+	sym = sym->components->ts.u.derived;
+
       /* It can happen that a component reference can be read before the
 	 associated derived type symbol has been loaded. Return now and
 	 wait for a later iteration of load_needed.  */

gcc/testsuite/ChangeLog

+2010-12-28  Janus Weil  <janus@gcc.gnu.org>
+
+	PR fortran/45827
+	* gfortran.dg/class_32.f90: New.
+
 2010-12-28  H.J. Lu  <hongjiu.lu@intel.com>
 
 	* gcc.target/i386/rdrand-1.c: Updated.

gcc/testsuite/gfortran.dg/class_32.f90

+! { dg-do compile }
+!
+! PR 45827: [4.6 Regression] [OOP] mio_component_ref(): Component not found
+!
+! Contributed by Daniel Franke <dfranke@gcc.gnu.org>
+
+MODULE m
+
+  TYPE, ABSTRACT :: t
+    PRIVATE
+    INTEGER   :: n
+  CONTAINS
+    PROCEDURE :: get
+  END TYPE
+
+  ABSTRACT INTERFACE
+    SUBROUTINE create(this)
+      IMPORT t
+      CLASS(t) :: this
+    END SUBROUTINE
+  END INTERFACE
+
+CONTAINS
+
+  FUNCTION get(this)
+    CLASS(t) :: this
+    REAL, DIMENSION(this%n) :: get
+  END FUNCTION
+
+  SUBROUTINE destroy(this)
+    CLASS(t) :: this
+  END SUBROUTINE
+
+END MODULE
+
+
+PROGRAM p
+  USE m
+END
+
+! { dg-final { cleanup-modules "m" } }