* module/oop/goops.scm (define-macro-folder): Factor out this helper.
(fold-class-slots): Implement using define-macro-folder.
(fold-slot-slots): New definition, for slots of <slot-definition>.
(define-slot-indexer): New helper. Use to define indexes for slots of
<class> and of <slot>.
* libguile/goops.c (SCM_GOOPS_UNBOUND, SCM_GOOPS_UNBOUNDP): Remove
internal macros.
(scm_make_unbound, scm_unbound_p): Remove internal functions.
(scm_sys_clear_fields_x): Add "unbound" parameter, for the init
value.
* module/oop/goops.scm (*unbound*): Define in Scheme as a simple
heap-allocated value.
(unbound?): New definition.
(%allocate-instance): Pass *unbound* to %clear-fields!.
(make-class, slot-definition-init-value)
(slot-definition-init-form, make-closure-variable): Use *unbound*
instead of (make-unbound), which is now gone.
* module/oop/goops/active-slot.scm (compute-get-n-set): Use *unbound*
instead of make-unbound. This module uses the GOOPS internals module;
perhaps we should export make-unbound or something...
* module/oop/goops/save.scm (make-unbound): Export our own make-unbound
definition, for use by residualized save code.
* module/language/ecmascript/base.scm (<undefined>, *undefined*): Use a
unique object kind and instance for the undefined value.
* libguile/vm.c (scm_i_vm_mark_stack): Fill the stack with
SCM_UNSPECIFIED instead of SCM_UNBOUND.
* libguile/deprecated.h:
* libguile/goops.c:
* libguile/goops.h:
* libguile/deprecated.c (scm_slot_ref_using_class):
(scm_slot_set_using_class_x):
(scm_slot_bound_using_class_p):
(scm_slot_exists_using_class_p): Deprecate.
* module/oop/goops.scm (slot-ref-using-class, slot-set-using-class!)
(slot-bound-using-class?, slot-exists-using-class?): Deprecate.
Change to check that `class' is indeed the class of `obj', as
required, and then dispatch to slot-ref et al.
* module/oop/goops.scm (slot-ref, slot-set!, slot-bound?, slot-exists?):
Bypass slot-ref-using-class, slot-set-using-class!, and so on. Those
interfaces are public and have to check that the class is indeed a
class, they should check that the object is an instance of the class,
and so on, whereas if we get the class via class-of we know that the
invariant holds.
* libguile/goops.h: Remove unimplemented declarations of
scm_make_next_method, scm_sys_invalidate_method_cache_x, and
stklos_version.
(scm_sys_invalidate_class_x): Remove helper definition. This was
exported in the past but shouldn't have been.
* libguile/goops.c (scm_sys_make_vtable_vtable): Rename from
scm_sys_make_root_class, and don't do anything about flags.
(scm_sys_bless_applicable_struct_vtables_x, scm_class_p)
(scm_sys_invalidate_class_x): Remove; we do these in Scheme now.
(scm_init_goops_builtins): Define Scheme values for vtable flags.
* module/oop/goops.scm (vtable-flag-goops-metaclass)
(class-add-flags!, class-clear-flags!, class-has-flags?)
(class?, instance?): New definitions.
(<class>): Add GOOPS metaclass flags from Scheme.
(<applicable-struct-class>, <applicable-struct-with-setter-class>):
Add flags from Scheme.
(make, initialize): Add class flags as appropriate.
(class-redefinition): Clear the "valid" flag on the old class.
(check-slot-args): Use instance? instead of a CPL check.
* test-suite/tests/goops.test: Add tests for compute-cpl based on
comments from goops.scm.
* module/oop/goops.scm (compute-std-cpl): Remove comment, and add
docstring.
(compute-cpl): Improve comment.
* module/oop/goops/util.scm: Removed. Instead we fold these definitions
into goops.scm.
* module/oop/goops/save.scm: Remove useless import of util.scm.
* module/oop/goops.scm: Fold in util.scm. Since we always use
add-interesting-primitive!, import (language tree-il primitives) in
the header. Clean up some early comments, and use of eval-when.
* module/Makefile.am: Adapt.
* module/oop/goops.scm (make-class): Inline find-duplicate to its use
site.
* module/oop/goops/util.scm (improper->proper): Remove unused function.
(any, every): Don't re-export these from SRFI-1; users can get them
from SRFI-1 directly.
* libguile/goops.c (scm_class_of): Access "redefined" slot by name in
the case where we need to change the class of an instance.
(scm_sys_goops_early_init): Move up capture of class-precedence-list
so SCM_SUBCLASSP can use it.
* libguile/goops.h (SCM_CLASS_CLASS_LAYOUT, scm_si_redefined)
(scm_si_direct_supers, scm_si_direct_slots, scm_si_direct_subclasses)
(scm_si_direct_methods, scm_si_cpl scm_si_slots)
(scm_si_getters_n_setters, SCM_N_CLASS_SLOTS, SCM_OBJ_CLASS_REDEF):
Remove. Now C code has no special knowledge about the layout of
GOOPS classes.
(SCM_SUBCLASSP): Use scm_class_precedence_list to get CPL.
(SCM_INST, SCM_ACCESSORS_OF): Remove unused macros that were
undocumented and nonsensical.
* libguile/goops.c: Move captured keywords and symbols up to the top.
(scm_i_inherit_applicable): Dispatch to Scheme.
(scm_sys_goops_early_init): Capture inherit-applicable!.
* module/oop/goops.scm (inherit-applicable!): Scheme implementation.
* libguile/goops.c (scm_sys_clear_fields_x): New function.
(scm_sys_allocate_instance): Remove. It was available to C but not to
Scheme and it's really internal.
* libguile/goops.h: Remove scm_sys_allocate_instance.
* module/oop/goops.scm (%allocate-instance): Implement in Scheme, using
allocate-struct and %clear-fields!.
(make, shallow-clone, deep-clone, allocate-instance): Adapt to
%allocate-instance not taking an initargs argument.
* module/oop/goops.scm (fold-<class>-slots): The first "reserved" slot
is actually for instance sizes, used by the "simple struct"
mechanism. Reuse this field for GOOPS's "nfields".
(make-standard-class, <class>, initialize): Adapt order of field
initializations.
* libguile/goops.h (SCM_CLASS_CLASS_LAYOUT, SCM_N_CLASS_SLOTS)
* libguile/goops.c (scm_sys_allocate_instance): Adapt.
* libguile/goops.c (scm_sys_make_root_class): Just make the
vtable-vtable, and leave initialization to Scheme.
* libguile/struct.c (scm_i_make_vtable_vtable): Change to take a full
list of fields, not just the extra fields.
(scm_init_struct): Adapt to scm_i_make_vtable_vtable change.
* module/oop/goops.scm (<class>): Compute layout for <class>, and
initialize <class> from here.
* libguile/goops.h:
* libguile/goops.c (scm_sys_initialize_object): Remove C interface.
This function was only really useful as part of a GOOPS initialize
method but was not exported from the goops module.
* module/oop/goops.scm (get-keyword, %initialize-object): Implement in
Scheme.
* libguile/goops.h (scm_c_extend_primitive_generic): Remove public
interface. This was introduced in 2003 with the "extended" generics
but never documented, unused as far as I can tell, and is better
accessed from Scheme.
* libguile/goops.c: Remove support for scm_c_extend_primitive_generic.
Simplify capture of change-class.
* module/oop/goops.scm (macro-fold-left): New helper.
(define-class-index): Define class-index-FOO for each slot FOO.
(fold-<class>-slots): Make the slots list have the marks of the
"visit" macro.
* module/oop/goops.scm (macro-fold-right, fold-<class>-slots, <class>):
Use a macro folder to define (and redefine) class slots. We'll use
this to compute static indices as well.
* libguile/goops.c: Remove unused #includes.
(make_class_name): New helper, replaces unsafe use of sprintf.
(scm_make_extended_class): Rewrite to call scm_make_standard_class
directly.
(scm_make_port_classes): Rewrite to use scm_make_standard_class, and
no need to patch the CPL any more.
* libguile/goops.h (SCM_CLASS_CLASS_LAYOUT, SCM_INSTANCE_HASH)
(SCM_SET_HASHSET):
* libguile/goops.c (prep_hashsets, scm_sys_make_root_class,
scm_sys_init_layout_x):
* module/oop/goops.scm (build-<class>-slots): Remove hashsets from
classes. We haven't implemented hashed dispatch since Guile 1.8, and
it's not clear that the particular formulation of dispatch is a good
idea.
