In gcc/: 2010-10-06 Nicola Pero <nicola.pero@meta-innovation.com>

In gcc/:
2010-10-06  Nicola Pero  <nicola.pero@meta-innovation.com>

        Implemented fast enumeration for Objective-C.
        * c-parser.c (objc_could_be_foreach_context): New.
        (c_lex_one_token): Recognize RID_IN keyword in a potential
        Objective-C foreach context.
        (c_parser_declaration_or_fndef): Added parameter.  Accept
        Objective-C RID_IN keyword as terminating a declaration; in that
        case, return the declaration in the new parameter.
        (c_parser_extenral_declaration): Updated calls to
        c_parser_declaration_or_fndef.
        (c_parser_declaration_or_fndef): Same change.
        (c_parser_compound_statement_nostart): Same change.
        (c_parser_label): Same change.
        (c_parser_objc_methodprotolist): Same change.
        (c_parser_omp_for_loop): Same change.
        (c_parser_for_statement): Detect and parse Objective-C foreach
        statements.
        (c_parser_omp_for_loop): Updated call to check_for_loop_decls().
        * c-decl.c (check_for_loop_decls): Added parameter to allow ObjC
        fast enumeration parsing code to turn off the c99 error but still
        perform checks on the loop declarations.
        * c-tree.h (check_for_loop_decls): Updated declaration.
        * doc/objc.texi: Document fast enumeration.

In gcc/c-family/:
2010-10-06  Nicola Pero  <nicola.pero@meta-innovation.com>

        Implemented fast enumeration for Objective-C.
        * c-common.h (objc_finish_foreach_loop): New.
        * stub-objc.c (objc_finish_foreach_loop): New.

In gcc/objc/:
2010-10-06  Nicola Pero  <nicola.pero@meta-innovation.com>

        Implemented fast enumeration for Objective-C.
        * objc-act.c (build_fast_enumeration_state_template): New.
        (TAG_ENUMERATION_MUTATION): New.
        (TAG_FAST_ENUMERATION_STATE): New.
        (synth_module_prologue): Call build_fast_enumeration_state_template() and set up
        objc_enumeration_mutation_decl.
        (objc_create_temporary_var): Allow providing a name to temporary
        variables.
        (objc_build_exc_ptr): Updated calls to
        objc_create_temporary_var().
        (next_sjlj_build_try_catch_finally): Same change.
        (objc_finish_foreach_loop): New.
        * objc-act.h: Added OCTI_FAST_ENUM_STATE_TEMP,
        OCTI_ENUM_MUTATION_DECL, objc_fast_enumeration_state_template,
        objc_enumeration_mutation_decl.

        Merge from 'apple/trunk' branch on FSF servers.

        2006-04-12 Fariborz Jahanian <fjahanian@apple.com>

        Radar 4507230
        * objc-act.c (objc_type_valid_for_messaging): New routine to check
        for valid objc object types.
        (objc_finish_foreach_loop): Check for invalid objc objects in
        foreach header.

In gcc/testsuite/:
2010-10-05  Nicola Pero  <nicola.pero@meta-innovation.com>

        Implemented fast enumeration for Objective-C.
        * objc.dg/foreach-1.m: New.
        * objc.dg/foreach-2.m: New.
        * objc.dg/foreach-3.m: New.
        * objc.dg/foreach-4.m: New.
        * objc.dg/foreach-5.m: New.
        * objc.dg/foreach-6.m: New.
        * objc.dg/foreach-7.m: New.

        Merge from 'apple/trunk' branch on FSF servers:
        2006-04-13 Fariborz Jahanian <fjahanian@apple.com>

        Radar 4502236
        * objc.dg/objc-foreach-5.m: New.

        2006-04-12 Fariborz Jahanian <fjahanian@apple.com>

        Radar 4507230
        * objc.dg/objc-foreach-4.m: New.

        2006-03-13  Fariborz Jahanian <fjahanian@apple.com>

        Radar 4472881
        * objc.dg/objc-foreach-3.m: New.

        2005-03-07 Fariborz Jahanian <fjahanian@apple.com>

        Radar 4468498
        * objc.dg/objc-foreach-2.m: New.

        2006-02-15   Fariborz Jahanian <fjahanian@apple.com>

        Radar 4294910
        * objc.dg/objc-foreach-1.m: New

In libobjc/:
2010-10-06  Nicola Pero  <nicola.pero@meta-innovation.com>

        Implemented fast enumeration for Objective-C.
        * Makefile.in (C_SOURCE_FILES): Added objc-foreach.c.
        (OBJC_H): Added runtime.h
        * objc-foreach.c: New file.
        * objc/runtime.h: New file.

From-SVN: r165019

1 files changed, 52 insertions, 0 deletions

diff --git a/libobjc/objc-foreach.c b/libobjc/objc-foreach.c
new file mode 100644
index 00000000000..83a91011d12
--- /dev/null
+++ b/libobjc/objc-foreach.c
@@ -0,0 +1,52 @@
+/* GNU Objective C Runtime 'fast enumeration' implementation
+   Copyright (C) 2010 Free Software Foundation, Inc.
+   Contributed by Nicola Pero <nicola.pero@meta-innovation.com>
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under the
+terms of the GNU General Public License as published by the Free Software
+Foundation; either version 3, or (at your option) any later version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+<http://www.gnu.org/licenses/>.  */
+
+/*
+  This file implements objc_enumeration_mutation() and
+  objc_set_enumeration_mutation_handler(), the two functions required
+  to handle mutations during a fast enumeration.
+*/
+#include "objc/runtime.h"           /* For objc_enumerationMutation() and objc_set_enumeration_mutation_handler() */
+#include "objc-private/error.h"     /* For _objc_abort() */
+
+/* The enumeration mutation handler currently in use.  */
+static void (*__objc_enumeration_mutation_handler)(id) = NULL;
+
+void
+objc_set_enumeration_mutation_handler (void (*handler)(id))
+{
+  __objc_enumeration_mutation_handler = handler;
+}
+
+void
+objc_enumerationMutation (id collection)
+{
+  if (__objc_enumeration_mutation_handler != NULL)
+    (*__objc_enumeration_mutation_handler) (collection);
+
+  /* We always abort if we get here; there is no point in going on as
+     the next iteration in the fast enumeration would probably go
+     deeply wrong.  */
+  _objc_abort ("Collection %p mutated during fast enumeration", collection);
+}