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* share/txr/stdlib/struct.tl (lnew): New macro.
* struct.c (struct_type): Turn id into a bitfield one bit
smaller than cnum. New Boolean bitfield lazy.
(struct_init): Register make-lazy-struct intrinsic.
(make_struct): Initialize lazy bitfield to zero.
(lazy_struct_init, check_init_lazy_struct): New static
functions.
(make_lazy_struct): New function.
(copy_struct, clear_struct, replace_struct, reset_struct,
lookup_slot, struct_inst_equal, struct_inst_hash):
Call check_init_lazy_struct on all structures involved.
(lookup_slot): Call check_init_lazy_struct.
(struct_inst_mark): If the struct is lazy, it has one
instance slot which must be marked, holding the argfun
function passed into make_lazy_struct.
* struct.h (make_lazy_struct): Declared.
* txr.1: Documented lnew and make-lazy-struct.
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* struct.c (struct_init): Register uslot intrinsic function.
(uslot_fun): New static function.
(uslot): New function.
* struct.h (uslot): Declared.
* share/txr/stdlib/struct.tl (usl): New macro.
* lisplib.c (struct_set_entries): Add usl macro.
* txr.1: Documented uslot and usl.
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* share/txr/stdlib/struct.tl (defmeth): New macro.
* struct.c (struct struct_type): New member, dvtypes.
(struct_init): Register static-slot-ensure
intrinsic.
(make_struct_type): Initialize dvtypes of newly instantiated
struct_type struct. If a super is specified, add new type
to the super's dvtypes.
(struct_type_mark): Mark st->dvtypes.
(static_slot_ensure): New function.
* struct.h (static_slot_ensure): Declared.
* txr.1: Documented defmeth and static-slot-ensure.
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* struct.c (reset_struct): New function.
(struct_init): Register reset_struct intrinsic.
* struct.h (reset_struct): Declared.
* txr.1: documented reset-struct.
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* struct.c (replace_struct): New function.
(struct_init): Register replace_struct intrinsic.
* struct.h (replace_struct): Declared.
* txr.1: documented replace-struct.
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* struct.c (clear_struct): New function.
(struct_init): Register clear-struct intrinsic.
* struct.h (struct_init): Declared.
* txr.1: documented clear-struct.
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* share/txr/stdlib/struct.tl (sys:prune-nil-inits):
Use of slot-p renamed.
* struct.c (struct_init): Register slotp, and make
registration of slot-p conditional on compatibility option.
(slot_p): Function renamed to slotp.
* struct.h (slot_p): Declaration renamed.
* txr.1: References to slot-p fixed to slotp. Compat notes
added.
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* share/txr/stdlib/struct.tl (umeth): New macro.
* struct.c (struct_init): Registered umethod intrinsic.
(umethod_fun): New static function.
(umethod): New function.
* txr.1: Documented.
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* struct.c (struct_init): Register super-method.
(super_method): New function.
* struct.h (super_method): Declared.
* txr.1: Documented.
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* share/txr/stdlib/struct.tl (sys:bad-slot-syntax): New helper function.
(defstruct): Macro revamped with new slot specifier syntax for
writing static slots as well as methods.
* struct.c (STATIC_SLOT_BASE): New preprocessor symbol.
(struct struct_type): New members, nstslots, stinitfun, stslot.
(make_struct_type_compat): New static function.
(struct_init): Register make-struct-type to make_struct_type_compat
if compatibility is 117 or lower.
Register new intrinsics static-slot, static-slot-set, call-super-method,
call-super-fun, slot-p and static-slot-p.
(call_stinitfun_chain): New static function.
(make_struct_type): Two new arguments for specifying static slots and
an initialization function for them. Logic added for setting
up static slots and handling inheritance.
(struct_type_destroy): New static function.
(struct_type_mark): Mark the new stinitfun member of struct type.
Also iterate over the static slots in the new stslot array and
mark them.
(lookup_slot): Altered to return a loc instead of a raw pointer,
and also to accept the instance object as a member.
Now resolves static slots: it can return a loc which references
a static slot in the structure type, or an instance slot in
the structure.
(lookup_static_slot): New static function.
(slot, slotset): Implementation adjusted due to new lookup_slot interface.
(static_slot, static_slot_set, slot_p, static_slot_p): New functions.
(call_super_method, call_super_fun): New static functions.
(struct_inst_print): This function can no longer assume that the slots
list lines up with the array of slots, since it contains a mixture of
static and instance slots. Earnest slot lookup has to be performed.
(struct_type_ops): Point the destroy function to struct_type_destroy
instead of cobj_destroy_free_op. A structure type now has an array
of static slots to free.
* struct.h (make_struct_type): Declaration updated.
(static_slot, static_slot_set, slot_p, static_slot_p): Declared.
* lib.c (time_init): Update call to make_struct_type with new
arguments.
* sysif.c (sysif_init): Likewise.
* tests/012/struct.tl: Update defstruct macro expansion test.
* txr.1: Documented static slots and new functions.
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* args.c (args_cat_zap): New function.
* args.h: (args_cat_zap): Declared.
* eval.c (struct_lit_s): New symbol variable.
(eval_init): Initialize struct_lit_s.
* eval.h (struct_lit_s): Declared.
* gc.c (finalize): If a symbol has a struct slot
hash attached to it, we must free it when
the symbol is reclaimed.
* lib.c (make_sym): Initialize symbol's slot_cache pointer
to null.
(copy): Copy structure objects.
(init): Call struct_init to initialize struct module.
* lib.h (SLOT_CACHE_SIZE): New preprocessor symbol
(slot_cache_line_t, slot_cache_t): New typedefs.
(struct sym): New member, slot_cache.
* lisplib.c (struct_set_entries, struct_instantiate): New
static functions.
(liplib_init): Register new functions in dl_table.
parser.y (HASH_S): New terminal symbol.
(struct): New grammar rule.
(n_expr): Derive struct.
(yybadtoken): Map HASH_S to #S string.
parser.l (grammar): Recognize #S and return HASH_S token.
share/txr/stdlib/place.tl (slot): New defplace.
share/txr/stdlib/struct.tl: New file.
struct.c: New file.
struct.h: New file.
* Makefile (OBJS): Adding struct.o.
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