[svn:parrot] r40628 - in trunk: lib/Parrot lib/Parrot/Pmc2c src src/dynpmc src/gc src/pmc

NotFound at svn.parrot.org NotFound at svn.parrot.org
Tue Aug 18 17:24:29 UTC 2009


Author: NotFound
Date: Tue Aug 18 17:24:24 2009
New Revision: 40628
URL: https://trac.parrot.org/parrot/changeset/40628

Log:
merge auto_attrs branch into trunk

Modified:
   trunk/lib/Parrot/Pmc2c/PMCEmitter.pm
   trunk/lib/Parrot/Vtable.pm
   trunk/src/dynpmc/dynlexpad.pmc
   trunk/src/dynpmc/foo.pmc
   trunk/src/dynpmc/foo2.pmc
   trunk/src/dynpmc/rotest.pmc
   trunk/src/gc/api.c
   trunk/src/pmc.c
   trunk/src/pmc/arrayiterator.pmc
   trunk/src/pmc/boolean.pmc
   trunk/src/pmc/callsignature.pmc
   trunk/src/pmc/capture.pmc
   trunk/src/pmc/class.pmc
   trunk/src/pmc/codestring.pmc
   trunk/src/pmc/complex.pmc
   trunk/src/pmc/continuation.pmc
   trunk/src/pmc/cpointer.pmc
   trunk/src/pmc/default.pmc
   trunk/src/pmc/exception.pmc
   trunk/src/pmc/exceptionhandler.pmc
   trunk/src/pmc/exporter.pmc
   trunk/src/pmc/filehandle.pmc
   trunk/src/pmc/fixedbooleanarray.pmc
   trunk/src/pmc/fixedfloatarray.pmc
   trunk/src/pmc/fixedintegerarray.pmc
   trunk/src/pmc/fixedpmcarray.pmc
   trunk/src/pmc/fixedstringarray.pmc
   trunk/src/pmc/float.pmc
   trunk/src/pmc/hashiterator.pmc
   trunk/src/pmc/hashiteratorkey.pmc
   trunk/src/pmc/integer.pmc
   trunk/src/pmc/key.pmc
   trunk/src/pmc/lexpad.pmc
   trunk/src/pmc/managedstruct.pmc
   trunk/src/pmc/multisub.pmc
   trunk/src/pmc/nci.pmc
   trunk/src/pmc/orderedhashiterator.pmc
   trunk/src/pmc/parrotinterpreter.pmc
   trunk/src/pmc/parrotlibrary.pmc
   trunk/src/pmc/pmcproxy.pmc
   trunk/src/pmc/pointer.pmc
   trunk/src/pmc/resizablebooleanarray.pmc
   trunk/src/pmc/resizablefloatarray.pmc
   trunk/src/pmc/resizableintegerarray.pmc
   trunk/src/pmc/resizablepmcarray.pmc
   trunk/src/pmc/resizablestringarray.pmc
   trunk/src/pmc/retcontinuation.pmc
   trunk/src/pmc/role.pmc
   trunk/src/pmc/scheduler.pmc
   trunk/src/pmc/schedulermessage.pmc
   trunk/src/pmc/sockaddr.pmc
   trunk/src/pmc/socket.pmc
   trunk/src/pmc/string.pmc
   trunk/src/pmc/stringhandle.pmc
   trunk/src/pmc/stringiterator.pmc
   trunk/src/pmc/task.pmc
   trunk/src/pmc/timer.pmc
   trunk/src/pmc/undef.pmc
   trunk/src/pmc/unmanagedstruct.pmc

Modified: trunk/lib/Parrot/Pmc2c/PMCEmitter.pm
==============================================================================
--- trunk/lib/Parrot/Pmc2c/PMCEmitter.pm	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/lib/Parrot/Pmc2c/PMCEmitter.pm	Tue Aug 18 17:24:24 2009	(r40628)
@@ -464,7 +464,8 @@
         NULL,       /* mro */
         NULL,       /* attribute_defs */
         NULL,       /* ro_variant_vtable */
-        $methlist
+        $methlist,
+	0           /* attr size */
     };
 ENDOFCODE
     return $cout;
@@ -640,6 +641,7 @@
             vt_${k}                 = Parrot_${classname}_${k}_get_vtable(interp);
             vt_${k}->base_type      = $enum_name;
             vt_${k}->flags          = $k_flags;
+
             vt_${k}->attribute_defs = attr_defs;
 
             vt_${k}->base_type           = entry;
@@ -761,6 +763,22 @@
     my $classname = $self->name;
     my $export = $self->is_dynamic ? 'PARROT_DYNEXT_EXPORT ' : 'PARROT_EXPORT';
 
+    # Sets the attr_size field:
+    # If the auto_attrs flag is set, use the current data,
+    # else check if this PMC has init or init_pmc vtable functions,
+    # setting it to 0 in that case, and keeping the value from the
+    # parent otherwise.
+    my $set_attr_size = '';
+    if ( @{$self->attributes} && $self->{flags}{auto_attrs} ) {
+        $set_attr_size .= "sizeof(Parrot_${classname}_attributes)";
+    }
+    else {
+        $set_attr_size .= "0" if exists($self->{has_method}{init}) ||
+                                 exists($self->{has_method}{init_pmc});
+    }
+    $set_attr_size =     "    vt->attr_size = " . $set_attr_size . ";\n"
+        if $set_attr_size ne '';
+
     my $vtable_updates = '';
     for my $name ( @{ $self->vtable->names } ) {
         if (exists $self->{has_method}{$name}) {
@@ -768,6 +786,8 @@
         }
     }
 
+    $vtable_updates .= $set_attr_size;
+
     $cout .= <<"EOC";
 
 $export
@@ -793,6 +813,8 @@
         }
     }
 
+    $vtable_updates .= $set_attr_size;
+
     $cout .= <<"EOC";
 
 $export

Modified: trunk/lib/Parrot/Vtable.pm
==============================================================================
--- trunk/lib/Parrot/Vtable.pm	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/lib/Parrot/Vtable.pm	Tue Aug 18 17:24:24 2009	(r40628)
@@ -186,6 +186,10 @@
         $struct .= "    $entry->[1]_method_t $entry->[1];\n";
     }
 
+    $struct .= <<'EOF';
+    UINTVAL attr_size;      /* Size of the attributes struct */
+EOF
+
     $struct .= "} _vtable;\n";
 
     return $struct;

Modified: trunk/src/dynpmc/dynlexpad.pmc
==============================================================================
--- trunk/src/dynpmc/dynlexpad.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/dynpmc/dynlexpad.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -19,7 +19,7 @@
 
 */
 
-pmclass DynLexPad dynpmc provides lexpad need_ext {
+pmclass DynLexPad dynpmc provides lexpad need_ext auto_attrs {
     ATTR Hash *hash;
     ATTR PMC  *init; /* the PMC used to initialize this DynLexPad */
 
@@ -42,8 +42,7 @@
         Hash *hash;
 
         Parrot_DynLexPad_attributes *attrs =
-            mem_allocate_zeroed_typed(Parrot_DynLexPad_attributes);
-        PMC_data(SELF) = attrs;
+            (Parrot_DynLexPad_attributes *) PMC_data(SELF);
 
         if (VTABLE_elements(interp, lexinfo)) {
             attrs->init = pmc_new_init(interp, enum_class_LexPad, lexinfo);
@@ -188,8 +187,6 @@
             parrot_hash_destroy(interp, PARROT_DYNLEXPAD(SELF)->hash);
             PARROT_DYNLEXPAD(SELF)->hash = NULL;
         }
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
     }
 /*
 

Modified: trunk/src/dynpmc/foo.pmc
==============================================================================
--- trunk/src/dynpmc/foo.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/dynpmc/foo.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -8,7 +8,7 @@
  * proper inheritance - for testing only
  */
 
-pmclass Foo dynpmc group foo_group provides scalar extends Integer {
+pmclass Foo dynpmc group foo_group provides scalar extends Integer auto_attrs {
 
     VTABLE INTVAL get_integer() {
         return 42;

Modified: trunk/src/dynpmc/foo2.pmc
==============================================================================
--- trunk/src/dynpmc/foo2.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/dynpmc/foo2.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -8,7 +8,7 @@
  * proper inheritance - for testing only
  */
 
-pmclass Foo2 dynpmc group foo_group provides scalar extends Foo {
+pmclass Foo2 dynpmc group foo_group provides scalar extends Foo auto_attrs {
 
     VTABLE INTVAL get_integer() {
         INTVAL i = SUPER();

Modified: trunk/src/dynpmc/rotest.pmc
==============================================================================
--- trunk/src/dynpmc/rotest.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/dynpmc/rotest.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -8,7 +8,7 @@
  * generation.  For testing only.
  */
 
-pmclass ROTest dynpmc provides scalar extends Integer {
+pmclass ROTest dynpmc provides scalar extends Integer auto_attrs {
     VTABLE void set_integer_native(INTVAL value) :read {
     }
     VTABLE INTVAL get_integer() :write {

Modified: trunk/src/gc/api.c
==============================================================================
--- trunk/src/gc/api.c	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/gc/api.c	Tue Aug 18 17:24:24 2009	(r40628)
@@ -374,6 +374,16 @@
     if (PObj_active_destroy_TEST(pmc))
         VTABLE_destroy(interp, pmc);
 
+    if (PMC_data(pmc) && pmc->vtable->attr_size) {
+#if 0
+        mem_sys_free(PMC_data(pmc));
+        PMC_data(pmc) = NULL;
+#else
+        Parrot_gc_free_pmc_attributes(interp, pmc, pmc->vtable->attr_size);
+#endif
+    }
+    PARROT_ASSERT(NULL == PMC_data(pmc));
+
     if (PObj_is_PMC_EXT_TEST(pmc))
         Parrot_gc_free_pmc_ext(interp, pmc);
 

Modified: trunk/src/pmc.c
==============================================================================
--- trunk/src/pmc.c	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc.c	Tue Aug 18 17:24:24 2009	(r40628)
@@ -241,6 +241,24 @@
     /* Set the right vtable */
     pmc->vtable = new_vtable;
 
+    if (PMC_data(pmc) && pmc->vtable->attr_size) {
+#if 0
+        mem_sys_free(PMC_data(pmc));
+#else
+        Parrot_gc_free_pmc_attributes(interp, pmc, pmc->vtable->attr_size);
+#endif
+    }
+
+    if (new_vtable->attr_size) {
+#if 0
+        PMC_data(pmc) = mem_sys_allocate_zeroed(new_vtable->attr_size);
+#else
+        Parrot_gc_allocate_pmc_attributes(interp, pmc, pmc->vtable->attr_size);
+#endif
+}
+    else
+        PMC_data(pmc) = NULL;
+
     return pmc;
 }
 
@@ -361,6 +379,14 @@
     /* Do we have an extension area? */
     INTVAL const has_ext = (PObj_is_PMC_EXT_TEST(pmc) && pmc->pmc_ext);
 
+    if (PMC_data(pmc) && pmc->vtable->attr_size) {
+#if 0
+        mem_sys_free(PMC_data(pmc));
+#else
+        Parrot_gc_free_pmc_attributes(interp, pmc, pmc->vtable->attr_size);
+#endif
+    }
+
     /* Do we need one? */
     if (flags & VTABLE_PMC_NEEDS_EXT) {
         /* If we need an ext area, go allocate one */
@@ -465,6 +491,14 @@
     pmc            = Parrot_gc_new_pmc_header(interp, flags);
     pmc->vtable    = vtable;
 
+    if (vtable->attr_size) {
+#if 0
+        PMC_data(pmc) = mem_sys_allocate_zeroed(vtable->attr_size);
+#else
+        Parrot_gc_allocate_pmc_attributes(interp, pmc, pmc->vtable->attr_size);
+#endif
+    }
+
 #if GC_VERBOSE
     if (Interp_flags_TEST(interp, PARROT_TRACE_FLAG)) {
         /* XXX make a more verbose trace flag */

Modified: trunk/src/pmc/arrayiterator.pmc
==============================================================================
--- trunk/src/pmc/arrayiterator.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/arrayiterator.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -51,7 +51,7 @@
 
 */
 
-pmclass ArrayIterator extends Iterator no_ro {
+pmclass ArrayIterator extends Iterator no_ro auto_attrs {
     ATTR PMC    *array;     /* the array which this Iterator iterates */
     ATTR INTVAL  pos;       /* Current position of iterator for forward iterator */
                             /* Previous position of iterator for reverse iterator */
@@ -86,12 +86,11 @@
 
     VTABLE void init_pmc(PMC *array) {
         Parrot_ArrayIterator_attributes * const attrs =
-            mem_allocate_zeroed_typed(Parrot_ArrayIterator_attributes);
+            (Parrot_ArrayIterator_attributes *) PMC_data(SELF);
 
         attrs->array     = array;
-        PMC_data(SELF)   = attrs;
 
-        PObj_custom_mark_destroy_SETALL(SELF);
+        PObj_custom_mark_SET(SELF);
 
         /* by default, iterate from start */
         SELF.set_integer_native(ITERATE_FROM_START);
@@ -99,21 +98,6 @@
 
 /*
 
-=item C<void destroy()>
-
-destroys this PMC
-
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
-    }
-
-/*
-
 =item C<void mark()>
 
 Marks the current idx/key and the aggregate as live.

Modified: trunk/src/pmc/boolean.pmc
==============================================================================
--- trunk/src/pmc/boolean.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/boolean.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -21,7 +21,7 @@
 
 */
 
-pmclass Boolean extends Integer provides boolean provides scalar {
+pmclass Boolean extends Integer provides boolean provides scalar auto_attrs {
 
 /*
 

Modified: trunk/src/pmc/callsignature.pmc
==============================================================================
--- trunk/src/pmc/callsignature.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/callsignature.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -27,7 +27,7 @@
     if (!PARROT_CAPTURE(obj)->hash) \
         PARROT_CAPTURE(obj)->hash = pmc_new((i), enum_class_Hash);
 
-pmclass CallSignature extends Capture need_ext provides array provides hash {
+pmclass CallSignature extends Capture need_ext auto_attrs provides array provides hash {
     ATTR PMC    *returns;    /* Result PMCs, if they were passed with the call */
     ATTR PMC    *type_tuple; /* Cached argument types for multiple dispatch */
     ATTR STRING *short_sig;  /* Simple string signature args & returns */
@@ -44,16 +44,10 @@
 
     VTABLE void init() {
         Parrot_CallSignature_attributes * const sig_struct =
-            mem_allocate_typed(Parrot_CallSignature_attributes);
-        PMC_data(SELF)         = sig_struct;
-        sig_struct->short_sig  = NULL;
+            (Parrot_CallSignature_attributes *) PMC_data(SELF);
+        SUPER();
         sig_struct->type_tuple = PMCNULL;
         sig_struct->returns    = PMCNULL;
-        sig_struct->array      = NULL;
-        sig_struct->hash       = NULL;
-        sig_struct->data_size  = CAPTURE_DATA_SIZE;
-        PObj_active_destroy_SET(SELF);
-        PObj_custom_mark_SET(SELF);
     }
 
 /*
@@ -182,15 +176,9 @@
 
 */
     VTABLE void mark() {
-        PMC ** const data = PMC_data_typed(SELF, PMC **);
         Parrot_CallSignature_attributes * const attrs = PARROT_CALLSIGNATURE(SELF);
 
         if (attrs) {
-
-            if (attrs->array)
-                Parrot_gc_mark_PObj_alive(interp, (PObj*)attrs->array);
-            if (attrs->hash)
-                Parrot_gc_mark_PObj_alive(interp, (PObj*)attrs->hash);
             if (attrs->returns)
                 Parrot_gc_mark_PObj_alive(interp, (PObj*)attrs->returns);
             if (attrs->type_tuple)
@@ -198,13 +186,7 @@
             if (attrs->short_sig)
                 Parrot_gc_mark_PObj_alive(interp, (PObj*)attrs->short_sig);
         }
-
-        if (data) {
-            INTVAL i;
-            for (i = attrs->data_size - 1; i >= 0; --i)
-                if (data[i])
-                    Parrot_gc_mark_PObj_alive(interp, (PObj *)data[i]);
-        }
+        SUPER();
     }
 
 

Modified: trunk/src/pmc/capture.pmc
==============================================================================
--- trunk/src/pmc/capture.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/capture.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -1,5 +1,5 @@
 /*
-Copyright (C) 2001-2008, Parrot Foundation.
+Copyright (C) 2001-2009, Parrot Foundation.
 $Id$
 
 =head1 NAME
@@ -26,7 +26,7 @@
     if (!PARROT_CAPTURE(obj)->hash) \
         PARROT_CAPTURE(obj)->hash = pmc_new((i), enum_class_Hash);
 
-pmclass Capture need_ext {
+pmclass Capture need_ext auto_attrs {
     ATTR PMC    *array;
     ATTR PMC    *hash;
     ATTR INTVAL  data_size;
@@ -37,31 +37,17 @@
 
 Initializes the Capture instance.
 
-=item C<void destroy()>
-
-Free structures.
-
 =cut
 
 */
 
     VTABLE void init() {
-        Parrot_Capture_attributes *capture = mem_allocate_typed(Parrot_Capture_attributes);
-        PMC_data(SELF)          = capture;
-        capture->array          = NULL;
-        capture->hash           = NULL;
+        Parrot_Capture_attributes *capture =
+                (Parrot_Capture_attributes *) PMC_data(SELF);
         capture->data_size      = CAPTURE_DATA_SIZE;
-        PObj_active_destroy_SET(SELF);
         PObj_custom_mark_SET(SELF);
     }
 
-    VTABLE void destroy() {
-        if (PARROT_CAPTURE(SELF)) {
-            mem_sys_free(PARROT_CAPTURE(SELF));
-            PMC_data(SELF) = NULL;
-        }
-    }
-
 /*
 
 =item C<PMC *clone()>

Modified: trunk/src/pmc/class.pmc
==============================================================================
--- trunk/src/pmc/class.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/class.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -443,7 +443,7 @@
 */
 
 pmclass Class
-    need_ext {
+    need_ext auto_attrs {
 
     ATTR INTVAL id;             /* The type number of the PMC. [deprecated: See RT #48024] */
     ATTR STRING *name;          /* The name of the class. */
@@ -479,14 +479,13 @@
 */
 
     VTABLE void init() {
-        Parrot_Class_attributes * const _class = mem_allocate_zeroed_typed(Parrot_Class_attributes);
+        Parrot_Class_attributes * const _class =
+                (Parrot_Class_attributes *) PMC_data(SELF);
 
-        /* Set flags for custom GC mark and destroy. */
+        /* Set flag for custom GC mark. */
         PObj_custom_mark_SET(SELF);
-        PObj_active_destroy_SET(SELF);
 
         /* Set up the object. */
-        PMC_data(SELF)          = _class;
         _class->name            = CONST_STRING(interp, "");
         _class->_namespace      = PMCNULL;
         _class->parents         = pmc_new(interp, enum_class_ResizablePMCArray);
@@ -559,21 +558,6 @@
 
 /*
 
-=item C<void destroy()>
-
-Frees the memory associated with the class's underlying struct.
-
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
-    }
-
-/*
-
 =item C<STRING *get_string()>
 
 Returns the name of the class (without the HLL namespace).

Modified: trunk/src/pmc/codestring.pmc
==============================================================================
--- trunk/src/pmc/codestring.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/codestring.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -34,18 +34,10 @@
 #  include <unicode/uchar.h>
 #endif
 
-pmclass CodeString extends String provides string {
+pmclass CodeString extends String provides string auto_attrs {
     ATTR INTVAL last_line_number; /* most recent line number seen   */
     ATTR INTVAL last_pos;         /* most recent byte position seen */
 
-    VTABLE void init() {
-        Parrot_CodeString_attributes *attrs =
-            mem_allocate_zeroed_typed(Parrot_CodeString_attributes);
-        attrs->str_val = Parrot_str_new_noinit(INTERP, enum_stringrep_one, 0);
-        PMC_data(SELF) = attrs;
-        PObj_custom_mark_destroy_SETALL(SELF);
-    }
-
 /*
 
 =item C<emit(string fmt [, pmc args ] [, pmc hash ])>

Modified: trunk/src/pmc/complex.pmc
==============================================================================
--- trunk/src/pmc/complex.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/complex.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -217,7 +217,7 @@
 }
 
 
-pmclass Complex need_ext {
+pmclass Complex need_ext auto_attrs {
 
     ATTR FLOATVAL re; /* real part */
     ATTR FLOATVAL im; /* imaginary part */
@@ -327,10 +327,6 @@
 Initializes the complex number with the specified initializer.
 The initializer can be a string PMC or a numeric array with (real, imag)
 
-=item C<void destroy()>
-
-Cleans up.
-
 =item C<PMC *clone()>
 
 Creates an identical copy of the complex number.
@@ -340,12 +336,8 @@
 */
 
     VTABLE void init() {
-        /* XXX should check if mem_sys_allocate failed */
-        PMC_data(SELF) = mem_allocate_typed(Parrot_Complex_attributes);
         SET_ATTR_re(INTERP, SELF, 0.0);
         SET_ATTR_im(INTERP, SELF, 0.0);
-
-        PObj_active_destroy_SET(SELF);
     }
 
     VTABLE void init_pmc(PMC *initializer) {
@@ -380,11 +372,6 @@
         }
     }
 
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
-    }
-
     VTABLE PMC *clone() {
         PMC * const dest = pmc_new(INTERP, VTABLE_type(INTERP, SELF));
         FLOATVAL re, im;

Modified: trunk/src/pmc/continuation.pmc
==============================================================================
--- trunk/src/pmc/continuation.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/continuation.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -45,7 +45,7 @@
  * need the next_for_GC pointer in the pmc_ext area.
  */
 
-pmclass Continuation need_ext {
+pmclass Continuation need_ext auto_attrs {
     ATTR struct Parrot_cont *cont; /* the continuation struct */
 
 /*
@@ -60,8 +60,7 @@
 
     VTABLE void init() {
         Parrot_Continuation_attributes *attrs =
-            mem_allocate_zeroed_typed(Parrot_Continuation_attributes);
-        PMC_data(SELF) = attrs;
+            (Parrot_Continuation_attributes *) PMC_data(SELF);
 
         PMC_cont(SELF) = new_continuation(INTERP, NULL);
         PObj_custom_mark_destroy_SETALL(SELF);
@@ -120,8 +119,6 @@
 
             mem_sys_free(cc);
         }
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
     }
 /*
 

Modified: trunk/src/pmc/cpointer.pmc
==============================================================================
--- trunk/src/pmc/cpointer.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/cpointer.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -46,7 +46,7 @@
 
 */
 
-pmclass CPointer need_ext {
+pmclass CPointer need_ext auto_attrs {
     ATTR void   *pointer; /* The stored pointer. */
     ATTR STRING *sig;     /* A string signature for the pointer. */
 
@@ -61,12 +61,8 @@
 */
 
     VTABLE void init() {
-        Parrot_CPointer_attributes * const pdata_struct =
-            mem_allocate_typed(Parrot_CPointer_attributes);
-
-        PMC_data(SELF)        = pdata_struct;
-        pdata_struct->pointer = NULL;
-        pdata_struct->sig     = NULL;
+        SET_ATTR_pointer(INTERP, SELF, NULL);
+        SET_ATTR_sig(INTERP, SELF, NULL);
 
         PObj_custom_mark_destroy_SETALL(SELF);
     }
@@ -83,19 +79,21 @@
 */
 
     VTABLE void mark() {
-        Parrot_CPointer_attributes * const data = PARROT_CPOINTER(SELF);
-
-        if (data->sig) {
-            Parrot_gc_mark_PObj_alive(interp, (PObj *)data->sig);
-
-            if (data->pointer) {
-                if (Parrot_str_equal(interp, data->sig, CONST_STRING(interp, "P"))) {
-                    PMC ** const pmc_pointer = (PMC **) data->pointer;
+        STRING *sig;
+        GET_ATTR_sig(INTERP, SELF, sig);
+        if (sig) {
+            void *pointer;
+            GET_ATTR_pointer(INTERP, SELF, pointer);
+            Parrot_gc_mark_PObj_alive(interp, (PObj *)sig);
+
+            if (pointer) {
+                if (Parrot_str_equal(interp, sig, CONST_STRING(interp, "P"))) {
+                    PMC ** const pmc_pointer = (PMC **) pointer;
                     PARROT_ASSERT(*pmc_pointer);
                     Parrot_gc_mark_PObj_alive(interp, (PObj *) *pmc_pointer);
                 }
-                else if (Parrot_str_equal(interp, data->sig, CONST_STRING(interp, "S"))) {
-                    STRING ** const str_pointer = (STRING **) data->pointer;
+                else if (Parrot_str_equal(interp, sig, CONST_STRING(interp, "S"))) {
+                    STRING ** const str_pointer = (STRING **) pointer;
                     PARROT_ASSERT(*str_pointer);
                     Parrot_gc_mark_PObj_alive(interp, (PObj *) *str_pointer);
                 }
@@ -114,12 +112,6 @@
 */
 
     VTABLE void destroy() {
-        Parrot_CPointer_attributes * const data = PARROT_CPOINTER(SELF);
-
-        if (data) {
-            mem_sys_free(data);
-            PMC_data(SELF) = NULL;
-        }
     }
 
 /*

Modified: trunk/src/pmc/default.pmc
==============================================================================
--- trunk/src/pmc/default.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/default.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -327,6 +327,19 @@
 
 /*
 
+=item C<void destroy()>
+
+Does nothing.
+
+=cut
+
+*/
+
+    VTABLE void destroy() {
+    }
+
+/*
+
 =item C<PMC *instantiate(PMC *init)>
 
 Default fallback. Creates a new PMC of the type of the class SELF and

Modified: trunk/src/pmc/exception.pmc
==============================================================================
--- trunk/src/pmc/exception.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/exception.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -52,7 +52,7 @@
 #include "parrot/exceptions.h"
 #include "pmc_sub.h"
 
-pmclass Exception {
+pmclass Exception auto_attrs {
 
     ATTR INTVAL          id;           /* The task ID in the scheduler. */
     ATTR FLOATVAL        birthtime;    /* The creation time stamp of the exception. */
@@ -83,15 +83,9 @@
 */
 
     VTABLE void init() {
-        Parrot_Exception_attributes * const core_struct =
-            mem_allocate_zeroed_typed(Parrot_Exception_attributes);
-
-        /* Set up the core struct and default values for the exception object. */
-        PMC_data(SELF)            = core_struct;
-
         /* Set flags for custom GC mark and destroy. */
-        PObj_custom_mark_SET(SELF);
         PObj_active_destroy_SET(SELF);
+        PObj_custom_mark_SET(SELF);
 
         SET_ATTR_severity(INTERP, SELF, EXCEPT_error);
         SET_ATTR_handled(INTERP, SELF, 0);
@@ -116,9 +110,6 @@
         INTVAL severity_val;
         STRING *message_val;
 
-        Parrot_Exception_attributes * const core_struct =
-            mem_allocate_zeroed_typed(Parrot_Exception_attributes);
-
         INTVAL ishash = VTABLE_isa(interp, values, CONST_STRING(interp, 'Hash'));
 
         if (ishash) {
@@ -132,10 +123,9 @@
             message_val  = VTABLE_get_string(interp, values);
         }
 
-        PMC_data(SELF)            = core_struct;
-        /* Set flags for custom GC mark and destroy. */
-        PObj_custom_mark_SET(SELF);
+        /* Set flags for custom GC mark. */
         PObj_active_destroy_SET(SELF);
+        PObj_custom_mark_SET(SELF);
 
         /* Set up the core struct and default values for the exception object. */
 
@@ -185,11 +175,8 @@
 
     VTABLE void destroy() {
         Parrot_Exception_attributes * const core_struct = PARROT_EXCEPTION(SELF);
-        if (core_struct) {
-            if (core_struct->thrower)
-                Parrot_free_context(interp, core_struct->thrower, 1);
-            mem_sys_free(core_struct);
-        }
+        if (core_struct && core_struct->thrower)
+            Parrot_free_context(interp, core_struct->thrower, 1);
     }
 
 /*

Modified: trunk/src/pmc/exceptionhandler.pmc
==============================================================================
--- trunk/src/pmc/exceptionhandler.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/exceptionhandler.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -22,7 +22,7 @@
 
 #include "parrot/oplib/ops.h"
 
-pmclass ExceptionHandler extends Continuation need_ext {
+pmclass ExceptionHandler extends Continuation need_ext auto_attrs {
 
     ATTR PMC    *handled_types;
     ATTR PMC    *handled_types_except;
@@ -41,11 +41,10 @@
 
     VTABLE void init() {
         Parrot_ExceptionHandler_attributes * const core_struct =
-            mem_allocate_zeroed_typed(Parrot_ExceptionHandler_attributes);
+            (Parrot_ExceptionHandler_attributes *)PMC_data(SELF);
         Parrot_cont * const cc     = new_continuation(INTERP, NULL);
 
         cc->invoked                = 0;
-        PMC_data(SELF)             = core_struct;
         PMC_cont(SELF)             = cc;
         core_struct->min_severity  = 0;
         core_struct->max_severity  = 0;

Modified: trunk/src/pmc/exporter.pmc
==============================================================================
--- trunk/src/pmc/exporter.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/exporter.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -90,7 +90,7 @@
 
 */
 
-pmclass Exporter need_ext {
+pmclass Exporter need_ext auto_attrs {
 
     ATTR PMC *ns_src;
     ATTR PMC *ns_dest;
@@ -107,10 +107,6 @@
 */
 
     VTABLE void init() {
-        Parrot_Exporter_attributes * const exp =
-            mem_allocate_zeroed_typed(Parrot_Exporter_attributes);
-        PMC_data(SELF)       = exp;
-
         /* Set up the object. */
         SET_ATTR_ns_src(INTERP, SELF, PMCNULL);
         SET_ATTR_ns_dest(INTERP, SELF, CONTEXT(interp)->current_namespace);
@@ -118,26 +114,8 @@
 
         /* Set flags for custom GC mark and destroy. */
         PObj_custom_mark_SET(SELF);
-        PObj_active_destroy_SET(SELF);
     }
 
-
-/*
-
-=item C<void destroy()>
-
-Free the memory associated with the object's underlying struct.
-
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
-    }
-
-
 /*
 
 =item C<void mark()>

Modified: trunk/src/pmc/filehandle.pmc
==============================================================================
--- trunk/src/pmc/filehandle.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/filehandle.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -31,7 +31,7 @@
 #endif
 #endif
 
-pmclass FileHandle extends Handle {
+pmclass FileHandle extends Handle auto_attrs {
     ATTR INTVAL flags;                /* Filehandle flags             */
     ATTR STRING *filename;            /* The opened path and filename */
     ATTR STRING *mode;                /* The mode string used in open */
@@ -64,9 +64,8 @@
 
     VTABLE void init() {
         Parrot_FileHandle_attributes * const data_struct =
-                mem_allocate_typed(Parrot_FileHandle_attributes);
+                (Parrot_FileHandle_attributes *) PMC_data(SELF);
 
-        PMC_data(SELF)             = data_struct;
         data_struct->flags         = 0;
         data_struct->filename      = NULL;
         data_struct->mode          = NULL;
@@ -150,9 +149,6 @@
 
             if (data_struct->buffer_start)
                 mem_sys_free(data_struct->buffer_start);
-
-            mem_sys_free(PARROT_FILEHANDLE(SELF));
-            PMC_data(SELF) = NULL;
         }
     }
 

Modified: trunk/src/pmc/fixedbooleanarray.pmc
==============================================================================
--- trunk/src/pmc/fixedbooleanarray.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/fixedbooleanarray.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -23,7 +23,7 @@
 
 #define BITS_PER_CHAR 8
 
-pmclass FixedBooleanArray need_ext provides array {
+pmclass FixedBooleanArray need_ext auto_attrs provides array {
     ATTR UINTVAL         size;             /* # of bits this fba holds */
     ATTR UINTVAL         resize_threshold; /* max capacity before resizing */
     ATTR unsigned char * bit_array;        /* where the bits go */
@@ -45,10 +45,6 @@
 */
 
     VTABLE void init() {
-        Parrot_FixedBooleanArray_attributes* attrs =
-            mem_allocate_zeroed_typed(Parrot_FixedBooleanArray_attributes);
-
-        PMC_data(SELF) = attrs;
         PObj_active_destroy_SET(SELF);
     }
 
@@ -67,8 +63,6 @@
         GET_ATTR_bit_array(INTERP, SELF, bit_array);
         if (bit_array)
             mem_sys_free(bit_array);
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
     }
 
 /*

Modified: trunk/src/pmc/fixedfloatarray.pmc
==============================================================================
--- trunk/src/pmc/fixedfloatarray.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/fixedfloatarray.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -19,7 +19,7 @@
 
 */
 
-pmclass FixedFloatArray need_ext provides array {
+pmclass FixedFloatArray need_ext auto_attrs provides array {
     ATTR INTVAL    size;
     ATTR FLOATVAL *float_array;
 
@@ -40,9 +40,6 @@
 */
 
     VTABLE void init() {
-        Parrot_FixedFloatArray_attributes* attrs =
-            mem_allocate_zeroed_typed(Parrot_FixedFloatArray_attributes);
-        PMC_data(SELF) = attrs;
     }
 
 /*
@@ -60,9 +57,6 @@
         GET_ATTR_float_array(INTERP, SELF, float_array);
         if (float_array)
             mem_sys_free(float_array);
-
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
     }
 
 /*

Modified: trunk/src/pmc/fixedintegerarray.pmc
==============================================================================
--- trunk/src/pmc/fixedintegerarray.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/fixedintegerarray.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -19,7 +19,7 @@
 
 */
 
-pmclass FixedIntegerArray need_ext provides array {
+pmclass FixedIntegerArray need_ext auto_attrs provides array {
     ATTR INTVAL   size;  /* number of INTVALs stored in this array */
     ATTR INTVAL * int_array; /* INTVALs are stored here */
 
@@ -40,9 +40,6 @@
 */
 
     VTABLE void init() {
-        Parrot_FixedIntegerArray_attributes* attrs =
-            mem_allocate_zeroed_typed(Parrot_FixedIntegerArray_attributes);
-        PMC_data(SELF) = attrs;
         PObj_active_destroy_SET(SELF);
     }
 
@@ -154,8 +151,6 @@
         GET_ATTR_int_array(INTERP, SELF, int_array);
         if (int_array)
             mem_sys_free(int_array);
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
     }
 
 /*

Modified: trunk/src/pmc/fixedpmcarray.pmc
==============================================================================
--- trunk/src/pmc/fixedpmcarray.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/fixedpmcarray.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -27,7 +27,7 @@
 #define PMC_size(x)  ((Parrot_FixedPMCArray_attributes *)PMC_data(x))->size
 #define PMC_array(x) ((Parrot_FixedPMCArray_attributes *)PMC_data(x))->pmc_array
 
-pmclass FixedPMCArray need_ext provides array {
+pmclass FixedPMCArray need_ext auto_attrs provides array {
     ATTR INTVAL   size;      /* number of elements in the array */
     ATTR PMC    **pmc_array; /* pointer to PMC array */
 
@@ -66,9 +66,7 @@
 
     VTABLE void init() {
         Parrot_FixedPMCArray_attributes *attrs =
-            mem_allocate_zeroed_typed(Parrot_FixedPMCArray_attributes);
-
-        PMC_data(SELF) = attrs;
+            (Parrot_FixedPMCArray_attributes *) PMC_data(SELF);
         PObj_custom_mark_destroy_SETALL(SELF);
     }
 
@@ -86,8 +84,6 @@
         if (PMC_array(SELF)) {
             mem_sys_free(PMC_array(SELF));
         }
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
     }
 
 /*

Modified: trunk/src/pmc/fixedstringarray.pmc
==============================================================================
--- trunk/src/pmc/fixedstringarray.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/fixedstringarray.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -19,7 +19,7 @@
 
 */
 
-pmclass FixedStringArray need_ext provides array {
+pmclass FixedStringArray need_ext auto_attrs provides array {
     ATTR STRING **str_array; /* where the STRINGs are stored */
     ATTR UINTVAL  size;      /* element count */
 
@@ -40,12 +40,6 @@
 */
 
     VTABLE void init() {
-
-        Parrot_FixedStringArray_attributes *attrs =
-            mem_allocate_zeroed_typed(Parrot_FixedStringArray_attributes);
-
-        PMC_data(SELF) = attrs;
-
         PObj_custom_mark_destroy_SETALL(SELF);
     }
 
@@ -67,9 +61,6 @@
 
         if (str_array)
             mem_sys_free(str_array);
-
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
     }
 
 /*

Modified: trunk/src/pmc/float.pmc
==============================================================================
--- trunk/src/pmc/float.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/float.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -18,7 +18,7 @@
 
 */
 
-pmclass Float extends scalar provides float provides scalar {
+pmclass Float extends scalar provides float provides scalar auto_attrs {
     ATTR FLOATVAL fv;
 
 /*
@@ -32,27 +32,9 @@
 */
 
     VTABLE void init() {
-        Parrot_Float_attributes * const fattr = mem_allocate_zeroed_typed(Parrot_Float_attributes);
-
-        PMC_data(SELF) = fattr;
         SET_ATTR_fv(INTERP, SELF, 0.0);
-
-        PObj_active_destroy_SET(SELF);
     }
-/*
-
-=item C<void destroy()>
-
-Destroy this PMC.
 
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
-    }
 /*
 
 =item C<PMC *clone()>

Modified: trunk/src/pmc/hashiterator.pmc
==============================================================================
--- trunk/src/pmc/hashiterator.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/hashiterator.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -75,7 +75,7 @@
     return bucket;
 }
 
-pmclass HashIterator extends Iterator no_ro {
+pmclass HashIterator extends Iterator no_ro auto_attrs {
     ATTR PMC        *pmc_hash;      /* the Hash which this Iterator iterates */
     ATTR Hash       *parrot_hash;   /* Underlying implementation of hash */
     ATTR HashBucket *bucket;        /* Current bucket */
@@ -96,7 +96,7 @@
 
     VTABLE void init_pmc(PMC *hash) {
         Parrot_HashIterator_attributes * const attrs =
-            mem_allocate_zeroed_typed(Parrot_HashIterator_attributes);
+            (Parrot_HashIterator_attributes *) PMC_data(SELF);
 
         attrs->pmc_hash         = hash;
         attrs->parrot_hash      = (Hash*)VTABLE_get_pointer(INTERP, hash);
@@ -106,9 +106,8 @@
         /* Will be decreased on initial advance_to_next */
         /* XXX Do we really need to support this use-case ? */
         attrs->elements         = attrs->parrot_hash->entries + 1;
-        PMC_data(SELF)          = attrs;
 
-        PObj_custom_mark_destroy_SETALL(SELF);
+        PObj_custom_mark_SET(SELF);
 
         /* Initial state of iterator is "before start" */
         /* So, advance to first element */
@@ -117,21 +116,6 @@
 
 /*
 
-=item C<void destroy()>
-
-destroys this PMC
-
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
-    }
-
-/*
-
 =item C<void mark()>
 
 Marks the hash as live.

Modified: trunk/src/pmc/hashiteratorkey.pmc
==============================================================================
--- trunk/src/pmc/hashiteratorkey.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/hashiteratorkey.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -19,48 +19,12 @@
 
 */
 
-pmclass HashIteratorKey no_ro {
+pmclass HashIteratorKey no_ro auto_attrs {
     ATTR Hash        *parrot_hash; /* Underlying parrot's hash */
     ATTR HashBucket  *bucket;      /* Current bucket from HashItertor */
 
 /*
 
-=item C<void init()>
-
-Initializes the PMC.
-
-Not really part of public API.
-
-=cut
-
-*/
-
-    VTABLE void init() {
-        Parrot_HashIteratorKey_attributes *attrs =
-            mem_allocate_zeroed_typed(Parrot_HashIteratorKey_attributes);
-
-        PMC_data(SELF) = attrs;
-
-        PObj_active_destroy_SET(SELF);
-    }
-
-/*
-
-=item C<void destroy()>
-
-Destroys this PMC
-
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
-    }
-
-/*
-
 =item C<get_pmc()>
 
 Get "key".

Modified: trunk/src/pmc/integer.pmc
==============================================================================
--- trunk/src/pmc/integer.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/integer.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -43,7 +43,7 @@
     return self;
 }
 
-pmclass Integer extends scalar provides integer provides scalar {
+pmclass Integer extends scalar provides integer provides scalar auto_attrs {
     ATTR INTVAL iv; /* the value of this Integer */
 
 /*
@@ -91,16 +91,13 @@
 
     VTABLE void init() {
         Parrot_Integer_attributes * const attrs =
-            mem_allocate_typed(Parrot_Integer_attributes);
+            (Parrot_Integer_attributes *)PMC_data(SELF);
 
         attrs->iv      = 0;
-        PMC_data(SELF) = attrs;
         PObj_active_destroy_SET(SELF);
     }
 
     VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
     }
 
 /*

Modified: trunk/src/pmc/key.pmc
==============================================================================
--- trunk/src/pmc/key.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/key.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -18,7 +18,7 @@
 
 */
 
-pmclass Key need_ext {
+pmclass Key need_ext auto_attrs {
     ATTR PMC      *next_key; /* Sometimes it's the next key, sometimes it's
                                 not.  The Key code is like that. */
     ATTR INTVAL    int_key;  /* int value of this key, or something magical if
@@ -40,26 +40,7 @@
 */
 
     VTABLE void init() {
-
-        Parrot_Key_attributes * const attrs =
-            mem_allocate_zeroed_typed(Parrot_Key_attributes);
-
-        PMC_data(SELF) = attrs;
-        PObj_custom_mark_destroy_SETALL(SELF);
-    }
-
-/*
-
-=item C<void destroy()>
-
-Destroy this Key, but not in the way anyone reading its code would want.
-
-=cut
-
-*/
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
+        PObj_custom_mark_SET(SELF);
     }
 
 /*
@@ -77,8 +58,6 @@
         PMC *dkey        = dest;
         PMC *key         = SELF;
 
-        PObj_custom_mark_destroy_SETALL(dest);
-
         for (; key ;) {
             switch (PObj_get_FLAGS(key) & KEY_type_FLAGS) {
                 case KEY_integer_FLAG:

Modified: trunk/src/pmc/lexpad.pmc
==============================================================================
--- trunk/src/pmc/lexpad.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/lexpad.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -26,7 +26,7 @@
  * pmc_val    ... LexInfo
  */
 
-pmclass LexPad provides hash no_ro {
+pmclass LexPad provides hash no_ro auto_attrs {
     ATTR PMC                   *lexinfo;
     ATTR struct Parrot_Context *ctx;
 
@@ -78,18 +78,7 @@
 
 */
     VTABLE void init_pmc(PMC *lexinfo) {
-        Parrot_LexPad_attributes * const attrs =
-            mem_allocate_zeroed_typed(Parrot_LexPad_attributes);
-
-        PObj_active_destroy_SET(SELF);
-
-        attrs->lexinfo = lexinfo;
-        PMC_data(SELF) = attrs;
-    }
-
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
+        SET_ATTR_lexinfo(INTERP, SELF, lexinfo);
     }
 
     VTABLE void set_pointer(void *ctx) {

Modified: trunk/src/pmc/managedstruct.pmc
==============================================================================
--- trunk/src/pmc/managedstruct.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/managedstruct.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -22,7 +22,7 @@
 typedef void (*custom_free_func_t)(PARROT_INTERP, void *ptr, void *priv);
 typedef PMC * (*custom_clone_func_t)(PARROT_INTERP, PMC *ptr, void *priv);
 
-pmclass ManagedStruct extends UnManagedStruct need_ext {
+pmclass ManagedStruct extends UnManagedStruct need_ext auto_attrs {
     /* if custom_free_func and ptr (inherited from UnManagedStruct) are both set,
      * custom_free_func is called before the normal destroy() function does any
      * work.
@@ -46,11 +46,7 @@
 */
 
     VTABLE void init() {
-        Parrot_ManagedStruct_attributes *attrs =
-            mem_allocate_zeroed_typed(Parrot_ManagedStruct_attributes);
         PObj_active_destroy_SET(SELF);
-        PMC_data(SELF) = attrs;
-
     }
 
 /*
@@ -91,8 +87,6 @@
             } else
                 mem_sys_free(ptr);
         }
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
     }
 
 /*

Modified: trunk/src/pmc/multisub.pmc
==============================================================================
--- trunk/src/pmc/multisub.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/multisub.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -19,7 +19,7 @@
 
 */
 
-pmclass MultiSub extends ResizablePMCArray need_ext provides array {
+pmclass MultiSub extends ResizablePMCArray need_ext auto_attrs provides array {
 
     VTABLE void push_pmc(PMC *value) {
         STRING * const _sub = CONST_STRING(interp, "Sub");

Modified: trunk/src/pmc/nci.pmc
==============================================================================
--- trunk/src/pmc/nci.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/nci.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -101,7 +101,7 @@
 }
 
 
-pmclass NCI need_ext {
+pmclass NCI need_ext auto_attrs {
     ATTR STRING    *signature;              /* The signature. */
     ATTR void      *func;                   /* Function pointer to call. */
     ATTR void      *orig_func;              /* Function pointer
@@ -155,12 +155,9 @@
 */
 
     VTABLE void init() {
-        PMC_data(SELF) = mem_allocate_zeroed_typed(Parrot_NCI_attributes);
-
         /* Mark that we're not a raw NCI. */
         PObj_flag_CLEAR(private2, SELF);
         PObj_custom_mark_SET(SELF);
-        PObj_active_destroy_SET(SELF);
     }
 
 /*
@@ -232,25 +229,6 @@
 
 /*
 
-=item C<void destroy()>
-
-Destroys the NCI, freeing any allocated memory.
-
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        if (PMC_data(SELF)) {
-            Parrot_NCI_attributes * const nci_info = PARROT_NCI(SELF);
-
-            mem_sys_free(nci_info);
-            PMC_data(SELF) = NULL;
-        }
-    }
-
-/*
-
 =item C<PMC *clone()>
 
 Creates and returns a clone of the NCI.

Modified: trunk/src/pmc/orderedhashiterator.pmc
==============================================================================
--- trunk/src/pmc/orderedhashiterator.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/orderedhashiterator.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -21,7 +21,7 @@
 #include "pmc_hash.h"
 #include "pmc_hashiteratorkey.h"
 
-pmclass OrderedHashIterator extends Iterator no_ro {
+pmclass OrderedHashIterator extends Iterator no_ro auto_attrs {
     ATTR PMC        *pmc_hash;      /* the Hash which this Iterator iterates */
     ATTR Hash       *parrot_hash;   /* Underlying implementation of hash */
     ATTR INTVAL      pos;           /* */
@@ -41,7 +41,7 @@
 
     VTABLE void init_pmc(PMC *hash) {
         Parrot_OrderedHashIterator_attributes * const attrs =
-            mem_allocate_zeroed_typed(Parrot_OrderedHashIterator_attributes);
+           (Parrot_OrderedHashIterator_attributes *) PMC_data(SELF);
 
         attrs->pmc_hash         = hash;
         attrs->parrot_hash      = (Hash*)VTABLE_get_pointer(INTERP, hash);
@@ -49,24 +49,8 @@
         /* Will be decreased on initial advance_to_next */
         /* XXX Do we really need to support this use-case ? */
         attrs->elements         = attrs->parrot_hash->entries;
-        PMC_data(SELF)          = attrs;
 
-        PObj_custom_mark_destroy_SETALL(SELF);
-    }
-
-/*
-
-=item C<void destroy()>
-
-destroys this PMC
-
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
+        PObj_custom_mark_SET(SELF);
     }
 
 /*

Modified: trunk/src/pmc/parrotinterpreter.pmc
==============================================================================
--- trunk/src/pmc/parrotinterpreter.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/parrotinterpreter.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -238,8 +238,9 @@
             Parrot_ParrotInterpreter_attributes *attrs =
                 mem_allocate_zeroed_typed(Parrot_ParrotInterpreter_attributes);
             PMC_data(SELF) = attrs;
+        }
+        if (!PMC_interp(SELF)) {
             create_interp(SELF, INTERP);
-            PARROT_ASSERT(attrs->interp);
         }
         PObj_active_destroy_SET(SELF);
     }
@@ -259,8 +260,15 @@
     VTABLE void init_pmc(PMC *parent) {
         Parrot_Interp p = PMC_interp(parent);
 
-        if (!PMC_interp(SELF))
+        if (!PMC_data(SELF)) {
+            Parrot_ParrotInterpreter_attributes *attrs =
+                mem_allocate_zeroed_typed(Parrot_ParrotInterpreter_attributes);
+            PMC_data(SELF) = attrs;
+        }
+        if (!PMC_interp(SELF)) {
             create_interp(SELF, p);
+        }
+        PObj_active_destroy_SET(SELF);
     }
 
 

Modified: trunk/src/pmc/parrotlibrary.pmc
==============================================================================
--- trunk/src/pmc/parrotlibrary.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/parrotlibrary.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -31,7 +31,7 @@
 #define PMC_dlhandle(x) ((Parrot_ParrotLibrary_attributes*)PMC_data(x))->dl_handle
 #define PMC_oplib_init(x) ((Parrot_ParrotLibrary_attributes*)PMC_data(x))->oplib_init
 
-pmclass ParrotLibrary need_ext provides library {
+pmclass ParrotLibrary need_ext auto_attrs provides library {
     ATTR void * dl_handle;  /* DLL handle */
     ATTR void * oplib_init; /* oplib init function */
 
@@ -46,9 +46,6 @@
 */
 
     VTABLE void init() {
-        Parrot_ParrotLibrary_attributes * const attrs =
-            mem_allocate_zeroed_typed(Parrot_ParrotLibrary_attributes);
-        PMC_data(SELF) = attrs;
         PObj_active_destroy_SET(SELF);
     }
 
@@ -66,8 +63,6 @@
         void *dl_handle = PMC_dlhandle(SELF);
         if (dl_handle)
             Parrot_dlclose(dl_handle);
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
     }
 
 

Modified: trunk/src/pmc/pmcproxy.pmc
==============================================================================
--- trunk/src/pmc/pmcproxy.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/pmcproxy.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -64,7 +64,7 @@
 */
 
 
-pmclass PMCProxy extends Class need_ext {
+pmclass PMCProxy extends Class need_ext auto_attrs {
 
 /*
 
@@ -77,14 +77,13 @@
 */
 
     VTABLE void init() {
-        Parrot_Class_attributes * const _pmc = mem_allocate_zeroed_typed(Parrot_Class_attributes);
+        Parrot_Class_attributes * const _pmc =
+                (Parrot_Class_attributes *) PMC_data(SELF);
         PMC          * const new_attribute   = pmc_new(interp, enum_class_Hash);
         STRING       * const name            = CONST_STRING(interp, "proxy");
-        PMC_data(SELF)                       = _pmc;
 
-        /* Set flags for custom GC mark and destroy. */
+        /* Set flag for custom GC mark. */
         PObj_custom_mark_SET(SELF);
-        PObj_active_destroy_SET(SELF);
 
         /* Set up the object. */
         _pmc->id               = 0;

Modified: trunk/src/pmc/pointer.pmc
==============================================================================
--- trunk/src/pmc/pointer.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/pointer.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -20,7 +20,7 @@
 
 */
 
-pmclass Pointer need_ext {
+pmclass Pointer need_ext auto_attrs {
     ATTR void * mark_function;
     ATTR void * pointer;
 
@@ -35,28 +35,11 @@
 */
 
     VTABLE void init() {
-        PObj_custom_mark_destroy_SETALL(SELF);
-        PMC_data(SELF) = mem_allocate_zeroed_typed(Parrot_Pointer_attributes);
+        PObj_custom_mark_SET(SELF);
     }
 
 /*
 
-=item C<void destroy()>
-
-Destroy the Pointer and free associated memory
-
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        mem_sys_free(PARROT_POINTER(SELF));
-        PMC_data(SELF) = NULL;
-    }
-
-
-/*
-
 =item C<void mark()>
 
 Marks the pointer as live.

Modified: trunk/src/pmc/resizablebooleanarray.pmc
==============================================================================
--- trunk/src/pmc/resizablebooleanarray.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/resizablebooleanarray.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -30,7 +30,7 @@
 /* Convert a size in bits to a size in bytes */
 #define BITS_TO_BYTES(size) ((size) / BITS_PER_CHAR)
 
-pmclass ResizableBooleanArray extends FixedBooleanArray need_ext provides array {
+pmclass ResizableBooleanArray extends FixedBooleanArray need_ext auto_attrs provides array {
     /* RBA uses the same attributes as FBA, but in RBA they're used as follows:
        size:             position of the last element (a.k.a tail_pos)
        resize_threshold: position of the first element (a.k.a. head_pos) */

Modified: trunk/src/pmc/resizablefloatarray.pmc
==============================================================================
--- trunk/src/pmc/resizablefloatarray.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/resizablefloatarray.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -20,26 +20,9 @@
 
 */
 
-pmclass ResizableFloatArray extends FixedFloatArray need_ext provides array {
+pmclass ResizableFloatArray extends FixedFloatArray need_ext auto_attrs provides array {
     ATTR INTVAL resize_threshold; /* max size before array needs resizing */
 
-
-
-/*
-
-=item C<void init()>
-
-Initializes this array.
-
-=cut
-
-*/
-    VTABLE void init() {
-        Parrot_ResizableFloatArray_attributes* attrs =
-            mem_allocate_zeroed_typed(Parrot_ResizableFloatArray_attributes);
-        PMC_data(SELF) = attrs;
-    }
-
 /*
 
 =item C<FLOATVAL get_number_keyed_int(INTVAL key)>

Modified: trunk/src/pmc/resizableintegerarray.pmc
==============================================================================
--- trunk/src/pmc/resizableintegerarray.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/resizableintegerarray.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -20,27 +20,11 @@
 
 */
 
-pmclass ResizableIntegerArray extends FixedIntegerArray need_ext provides array {
+pmclass ResizableIntegerArray extends FixedIntegerArray need_ext auto_attrs provides array {
     ATTR INTVAL resize_threshold; /* max size before array needs to be resized */
 
 /*
 
-=item C<void init()>
-
-Initializes the array.
-
-=cut
-
-*/
-    VTABLE void init() {
-        Parrot_ResizableIntegerArray_attributes* attrs =
-            mem_allocate_zeroed_typed(Parrot_ResizableIntegerArray_attributes);
-        PMC_data(SELF) = attrs;
-        PObj_active_destroy_SET(SELF);
-    }
-
-/*
-
 =item C<INTVAL get_integer_keyed_int(INTVAL key)>
 
 Returns the integer value of the element at index C<key>.

Modified: trunk/src/pmc/resizablepmcarray.pmc
==============================================================================
--- trunk/src/pmc/resizablepmcarray.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/resizablepmcarray.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -23,7 +23,7 @@
 #define PMC_array(x)     ((Parrot_ResizablePMCArray_attributes *)PMC_data(x))->pmc_array
 #define PMC_threshold(x) ((Parrot_ResizablePMCArray_attributes *)PMC_data(x))->resize_threshold
 
-pmclass ResizablePMCArray extends FixedPMCArray need_ext provides array {
+pmclass ResizablePMCArray extends FixedPMCArray need_ext auto_attrs provides array {
     ATTR INTVAL resize_threshold; /* max size before array needs resizing */
 
 
@@ -37,10 +37,6 @@
 */
 
     VTABLE void init() {
-        Parrot_ResizablePMCArray_attributes *attrs =
-            mem_allocate_zeroed_typed(Parrot_ResizablePMCArray_attributes);
-
-        PMC_data(SELF) = attrs;
         PObj_custom_mark_destroy_SETALL(SELF);
     }
 

Modified: trunk/src/pmc/resizablestringarray.pmc
==============================================================================
--- trunk/src/pmc/resizablestringarray.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/resizablestringarray.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -18,7 +18,7 @@
 
 */
 
-pmclass ResizableStringArray extends FixedStringArray need_ext provides array {
+pmclass ResizableStringArray extends FixedStringArray need_ext auto_attrs provides array {
     ATTR UINTVAL resize_threshold; /*max capacity before resizing */
 
 /*
@@ -27,25 +27,6 @@
 
 =over 4
 
-=item C<void init()>
-
-Initializes the array.
-
-=cut
-
-*/
-
-    VTABLE void init() {
-        Parrot_ResizableStringArray_attributes *attrs =
-            mem_allocate_zeroed_typed(Parrot_ResizableStringArray_attributes);
-
-        PMC_data(SELF)   = attrs;
-
-        PObj_custom_mark_destroy_SETALL(SELF);
-    }
-
-/*
-
 =item C<STRING *get_string_keyed_int(INTVAL key)>
 
 Returns the Parrot string value of the element at index C<key>.

Modified: trunk/src/pmc/retcontinuation.pmc
==============================================================================
--- trunk/src/pmc/retcontinuation.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/retcontinuation.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -23,7 +23,7 @@
 
 #include "parrot/oplib/ops.h"
 
-pmclass RetContinuation extends Continuation need_ext {
+pmclass RetContinuation extends Continuation need_ext auto_attrs {
 
 /*
 
@@ -37,9 +37,7 @@
 
     VTABLE void init() {
         Parrot_RetContinuation_attributes * const attrs =
-            mem_allocate_typed(Parrot_RetContinuation_attributes);
-
-        PMC_data(SELF) = attrs;
+            (Parrot_RetContinuation_attributes *) PMC_data(SELF);
         PMC_cont(SELF) = new_ret_continuation(INTERP);
 
         PObj_custom_mark_destroy_SETALL(SELF);
@@ -55,9 +53,6 @@
 
         if (cc)
             mem_sys_free(cc);
-
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
     }
 /*
 

Modified: trunk/src/pmc/role.pmc
==============================================================================
--- trunk/src/pmc/role.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/role.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -198,7 +198,7 @@
 
 */
 
-pmclass Role need_ext {
+pmclass Role need_ext auto_attrs {
     ATTR STRING *name;            /* The name of the role. */
     ATTR PMC    *_namespace;      /* The namespace it's linked to, if any. */
     ATTR PMC    *roles;           /* Roles from which this role is composed. */
@@ -221,12 +221,11 @@
 */
 
     VTABLE void init() {
-        Parrot_Role_attributes * const role = mem_allocate_zeroed_typed(Parrot_Role_attributes);
-        PMC_data(SELF)        = role;
+        Parrot_Role_attributes * const role =
+                (Parrot_Role_attributes *) PMC_data(SELF);
 
-        /* Set flags for custom GC mark and destroy. */
+        /* Set flags for custom GC mark. */
         PObj_custom_mark_SET(SELF);
-        PObj_active_destroy_SET(SELF);
 
         /* Set up the object. */
         role->name            = CONST_STRING(interp, "");
@@ -246,21 +245,6 @@
 
 /*
 
-=item C<void destroy()>
-
-Free the memory associated with the object's underlying struct.
-
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
-    }
-
-/*
-
 =item C<void mark()>
 
 Mark referenced strings and PMCs in the structure as live.

Modified: trunk/src/pmc/scheduler.pmc
==============================================================================
--- trunk/src/pmc/scheduler.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/scheduler.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -20,7 +20,7 @@
 
 #include "parrot/scheduler_private.h"
 
-pmclass Scheduler need_ext {
+pmclass Scheduler need_ext auto_attrs {
 
     ATTR INTVAL        id;         /* The scheduler's ID. */
     ATTR INTVAL        max_tid;    /* The highest assigned task ID. */
@@ -48,14 +48,13 @@
 
     VTABLE void init() {
         Parrot_Scheduler_attributes * const core_struct =
-            mem_allocate_zeroed_typed(Parrot_Scheduler_attributes);
+            (Parrot_Scheduler_attributes *) PMC_data(SELF);
 
         /* Set flags for custom GC mark and destroy. */
         PObj_custom_mark_SET(SELF);
         PObj_active_destroy_SET(SELF);
 
         /* Set up the core struct. */
-        PMC_data(SELF)           = core_struct;
         core_struct->id          = 0;
         core_struct->max_tid     = 0;
         core_struct->task_list   = pmc_new(interp, enum_class_Hash);
@@ -248,8 +247,6 @@
     VTABLE void destroy() {
         Parrot_Scheduler_attributes * const core_struct = PARROT_SCHEDULER(SELF);
         MUTEX_DESTROY(core_struct->msg_lock);
-        mem_sys_free(core_struct);
-        PMC_data(SELF) = NULL;
     }
 
 

Modified: trunk/src/pmc/schedulermessage.pmc
==============================================================================
--- trunk/src/pmc/schedulermessage.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/schedulermessage.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -1,5 +1,5 @@
 /*
-Copyright (C) 2001-2008, Parrot Foundation.
+Copyright (C) 2001-2009, Parrot Foundation.
 $Id$
 
 =head1 NAME
@@ -20,7 +20,7 @@
 
 #include "parrot/scheduler_private.h"
 
-pmclass SchedulerMessage need_ext {
+pmclass SchedulerMessage need_ext auto_attrs {
     ATTR INTVAL  id;        /* The message's ID. */
     ATTR STRING *type;      /* The message's type. */
     ATTR PMC    *data;      /* Additional data for the message. */
@@ -37,14 +37,12 @@
 
     VTABLE void init() {
         Parrot_SchedulerMessage_attributes * const core_struct
-            = mem_allocate_zeroed_typed(Parrot_SchedulerMessage_attributes);
+            = (Parrot_SchedulerMessage_attributes *) PMC_data(SELF);
 
-        /* Set flags for custom GC mark and destroy. */
+        /* Set flags for custom GC mark. */
         PObj_custom_mark_SET(SELF);
-        PObj_active_destroy_SET(SELF);
 
         /* Set up the core struct. */
-        PMC_data(SELF)           = core_struct;
         core_struct->id          = 0;
         core_struct->type        = CONST_STRING(INTERP, "");
         core_struct->data        = PMCNULL;
@@ -189,20 +187,6 @@
 
 /*
 
-=item C<void destroy()>
-
-Free the scheduler's underlying struct.
-
-=cut
-
-*/
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
-    }
-
-/*
-
 =item C<void mark()>
 
 Mark any referenced strings and PMCs.

Modified: trunk/src/pmc/sockaddr.pmc
==============================================================================
--- trunk/src/pmc/sockaddr.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/sockaddr.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -29,7 +29,7 @@
 }
 #endif
 
-pmclass Sockaddr need_ext {
+pmclass Sockaddr need_ext auto_attrs {
     ATTR void   *pointer; /* The stored pointer. */
 
 /*
@@ -44,10 +44,10 @@
 
     VTABLE void init() {
         Parrot_Sockaddr_attributes * const pdata_struct =
-            mem_allocate_typed(Parrot_Sockaddr_attributes);
+            (Parrot_Sockaddr_attributes *) PMC_data(SELF);
 
-        PMC_data(SELF)        = pdata_struct;
         pdata_struct->pointer = mem_allocate_zeroed_typed(struct sockaddr_in);
+        PObj_active_destroy_SET(SELF);
     }
 
 /*
@@ -65,8 +65,7 @@
 
         if (data) {
             mem_sys_free(data->pointer);
-            mem_sys_free(data);
-            PMC_data(SELF) = NULL;
+            data->pointer = NULL;
         }
     }
 

Modified: trunk/src/pmc/socket.pmc
==============================================================================
--- trunk/src/pmc/socket.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/socket.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -20,7 +20,7 @@
 
 #include "../src/io/io_private.h"
 
-pmclass Socket extends Handle {
+pmclass Socket extends Handle auto_attrs {
     ATTR PMC *local;           /* Local addr                   */
     ATTR PMC *remote;          /* Remote addr                  */
 
@@ -36,9 +36,8 @@
 
     VTABLE void init() {
         Parrot_Socket_attributes *data_struct =
-                mem_allocate_zeroed_typed(Parrot_Socket_attributes);
+                (Parrot_Socket_attributes *) PMC_data(SELF);
 
-        PMC_data(SELF)      = data_struct;
         data_struct->local  = PMCNULL;
         data_struct->remote = PMCNULL;
 
@@ -119,7 +118,6 @@
                 Parrot_io_close_piohandle(interp, data_struct->os_handle);
             data_struct->os_handle = PIO_INVALID_HANDLE;
         }
-        PMC_data(SELF) = NULL;
     }
 
 /*

Modified: trunk/src/pmc/string.pmc
==============================================================================
--- trunk/src/pmc/string.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/string.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -20,7 +20,7 @@
 
 */
 
-pmclass String extends scalar provides string provides scalar {
+pmclass String extends scalar provides string provides scalar auto_attrs {
     ATTR STRING * str_val;
 
 /*
@@ -34,33 +34,14 @@
 */
 
     VTABLE void init() {
-        Parrot_String_attributes *attrs =
-            mem_allocate_typed(Parrot_String_attributes);
         STRING *str_val = Parrot_str_new_noinit(INTERP, enum_stringrep_one, 0);
-        PMC_data(SELF) = attrs;
         SET_ATTR_str_val(INTERP, SELF, str_val);
 
-        PObj_custom_mark_destroy_SETALL(SELF);
+        PObj_custom_mark_SET(SELF);
     }
 
 /*
 
-=item C<void destroy()>
-
-Destroys this String PMC.
-
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
-    }
-
-
-/*
-
 =item C<PMC instantiate_str(STRING *rep)>
 
 Class method to construct a String from the string representation C<rep>.
@@ -111,7 +92,6 @@
 
     VTABLE PMC *clone() {
         PMC * const dest = pmc_new(INTERP, SELF->vtable->base_type);
-        PObj_custom_mark_destroy_SETALL(dest);
         VTABLE_set_string_native(INTERP, dest, Parrot_str_copy(INTERP, SELF.get_string()));
         return dest;
     }

Modified: trunk/src/pmc/stringhandle.pmc
==============================================================================
--- trunk/src/pmc/stringhandle.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/stringhandle.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -46,7 +46,7 @@
         return Parrot_str_equal(interp, s, CONST_STRING(interp, "utf8"));
 }
 
-pmclass StringHandle extends Handle need_ext {
+pmclass StringHandle extends Handle need_ext auto_attrs {
     ATTR INTVAL  flags;               /* Filehandle flags             */
     ATTR STRING *stringhandle;        /* The string data              */
     ATTR STRING *mode;                /* The mode string used in open */
@@ -70,9 +70,8 @@
 
     VTABLE void init() {
         Parrot_StringHandle_attributes *data_struct =
-                mem_allocate_typed(Parrot_StringHandle_attributes);
+                (Parrot_StringHandle_attributes *) PMC_data(SELF);
 
-        PMC_data(SELF)            = data_struct;
         data_struct->flags        = 0;
         data_struct->stringhandle = NULL;
         data_struct->mode         = NULL;
@@ -81,7 +80,6 @@
         data_struct->read_offset  = 0;
 
         PObj_custom_mark_SET(SELF);
-        PObj_active_destroy_SET(SELF);
     }
 
 /*
@@ -134,22 +132,6 @@
 
 /*
 
-=item C<void destroy()>
-
-Free structures.
-
-=cut
-
-*/
-    VTABLE void destroy() {
-        if (PARROT_STRINGHANDLE(SELF)) {
-            mem_sys_free(PARROT_STRINGHANDLE(SELF));
-            PMC_data(SELF) = NULL;
-        }
-    }
-
-/*
-
 =item C<INTVAL get_bool()>
 
 Returns whether the StringHandle has reached the end of the file.

Modified: trunk/src/pmc/stringiterator.pmc
==============================================================================
--- trunk/src/pmc/stringiterator.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/stringiterator.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -22,7 +22,7 @@
 */
 
 
-pmclass StringIterator extends Iterator {
+pmclass StringIterator auto_attrs extends Iterator {
     ATTR PMC    *string;    /* String to iterate over */
     ATTR INTVAL  pos;       /* Current position of iterator for forward iterator */
                             /* Previous position of iterator for reverse iterator */
@@ -39,31 +39,11 @@
 
 */
     VTABLE void init_pmc(PMC *string) {
-        Parrot_StringIterator_attributes * const attrs =
-            mem_allocate_zeroed_typed(Parrot_StringIterator_attributes);
-
-        attrs->string    = string;
-        PMC_data(SELF)   = attrs;
-
-        PObj_custom_mark_destroy_SETALL(SELF);
+        SET_ATTR_string(INTERP, SELF, string);
 
         /* by default, iterate from start */
         SELF.set_integer_native(ITERATE_FROM_START);
-    }
-
-/*
-
-=item C<void destroy()>
-
-destroys this PMC
-
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
+        PObj_custom_mark_SET(SELF);
     }
 
 /*

Modified: trunk/src/pmc/task.pmc
==============================================================================
--- trunk/src/pmc/task.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/task.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -20,7 +20,7 @@
 
 #include "parrot/scheduler_private.h"
 
-pmclass Task need_ext {
+pmclass Task need_ext auto_attrs {
     ATTR INTVAL        id;        /* The task ID. */
     ATTR INTVAL        priority;  /* The priority of the task. */
     ATTR FLOATVAL      birthtime; /* The creation time stamp of the task. */
@@ -44,14 +44,12 @@
 
     VTABLE void init() {
         Parrot_Task_attributes * const core_struct =
-            mem_allocate_zeroed_typed(Parrot_Task_attributes);
+            (Parrot_Task_attributes *) PMC_data(SELF);
 
-        /* Set flags for custom GC mark and destroy. */
+        /* Set flags for custom GC mark. */
         PObj_custom_mark_SET(SELF);
-        PObj_active_destroy_SET(SELF);
 
         /* Set up the core struct. */
-        PMC_data(SELF)           = core_struct;
         core_struct->id          = 0;
         core_struct->type        = CONST_STRING(interp, "");
         core_struct->subtype     = CONST_STRING(interp, "");
@@ -123,14 +121,12 @@
             Parrot_ex_throw_from_c_args(INTERP, NULL, EXCEPTION_INVALID_OPERATION,
                 "Task initializer must be a Hash");
 
-        core_struct = mem_allocate_zeroed_typed(Parrot_Task_attributes);
+        core_struct = (Parrot_Task_attributes *) PMC_data(SELF);
 
-        /* Set flags for custom GC mark and destroy. */
+        /* Set flags for custom GC mark. */
         PObj_custom_mark_SET(SELF);
-        PObj_active_destroy_SET(SELF);
 
         /* Set up the core struct. */
-        PMC_data(SELF)           = core_struct;
 
         elem = VTABLE_get_pmc_keyed_str(INTERP, data, CONST_STRING(INTERP, "id"));
         if (! PMC_IS_NULL(elem))
@@ -369,20 +365,6 @@
 
 /*
 
-=item C<void destroy()>
-
-Free the task's underlying struct.
-
-=cut
-
-*/
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
-    }
-
-/*
-
 =item C<void mark()>
 
 Mark any referenced strings and PMCs.

Modified: trunk/src/pmc/timer.pmc
==============================================================================
--- trunk/src/pmc/timer.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/timer.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -57,7 +57,7 @@
 
 #include "parrot/scheduler_private.h"
 
-pmclass Timer extends Task provides event need_ext {
+pmclass Timer extends Task provides event need_ext auto_attrs {
     ATTR FLOATVAL      duration;  /* The duration of the timer pause */
     ATTR FLOATVAL      interval;  /* How often to repeat */
     ATTR INTVAL        repeat;    /* Whether to repeat:
@@ -75,14 +75,13 @@
 
     VTABLE void init() {
         Parrot_Timer_attributes * const core_struct =
-            mem_allocate_zeroed_typed(Parrot_Timer_attributes);
+            (Parrot_Timer_attributes *) PMC_data(SELF);
 
         /* Set flags for custom GC mark and destroy. */
         PObj_custom_mark_SET(SELF);
         PObj_active_destroy_SET(SELF);
 
         /* Set up the core struct. */
-        PMC_data(SELF)           = core_struct;
         core_struct->id          = 0;
         core_struct->type        = CONST_STRING(interp, "timer");
         core_struct->subtype     = CONST_STRING(interp, "");
@@ -179,8 +178,6 @@
 
     VTABLE void destroy() {
         Parrot_cx_delete_task(INTERP, SELF);
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
     }
 
 /*

Modified: trunk/src/pmc/undef.pmc
==============================================================================
--- trunk/src/pmc/undef.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/undef.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -57,7 +57,6 @@
             VTABLE_destroy(interp, clone);
 
             PObj_is_object_SET(SELF);
-            PObj_active_destroy_SET(SELF);
 
         }
     }

Modified: trunk/src/pmc/unmanagedstruct.pmc
==============================================================================
--- trunk/src/pmc/unmanagedstruct.pmc	Tue Aug 18 16:52:00 2009	(r40627)
+++ trunk/src/pmc/unmanagedstruct.pmc	Tue Aug 18 17:24:24 2009	(r40628)
@@ -651,7 +651,7 @@
     return toff;
 }
 
-pmclass UnManagedStruct need_ext no_ro {
+pmclass UnManagedStruct need_ext auto_attrs no_ro {
     ATTR void   *ptr;   /* the struct that this UnManagedStruct isn't managing */
     ATTR PMC    *init;  /* the initializer used with this UnManagedStruct */
     ATTR INTVAL  size;  /* the size of the struct */
@@ -664,39 +664,6 @@
 
 =over 4
 
-=item C<void init()>
-
-Initializes the C<struct> with a default value of C<NULL>.
-
-=cut
-
-*/
-
-    VTABLE void init() {
-        Parrot_UnManagedStruct_attributes *attrs =
-            mem_allocate_zeroed_typed(Parrot_UnManagedStruct_attributes);
-        PMC_data(SELF) = attrs;
-        PObj_active_destroy_SET(SELF);
-    }
-
-/*
-
-=item C<void destroy()>
-
-Destroys the subroutine.
-
-=cut
-
-*/
-
-    VTABLE void destroy() {
-        mem_sys_free(PMC_data(SELF));
-        PMC_data(SELF) = NULL;
-    }
-
-
-/*
-
 =item C<void init_pmc(PMC *value)>
 
 Initialize the struct with some data.
@@ -724,9 +691,6 @@
 */
 
     VTABLE void init_pmc(PMC *value) {
-        Parrot_UnManagedStruct_attributes *attrs =
-            mem_allocate_zeroed_typed(Parrot_UnManagedStruct_attributes);
-        PMC_data(SELF) = attrs;
         SELF.set_pmc(value);
     }
 


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