we can have operator class objects which themselves are entities).
* struct.h (scm_struct_i_proc, scm_struct_i_flags,
SCM_STRUCTF_ENTITY): New constants.
* struct.c, struct.h (scm_alloc_struct): Renamed from alloc_struct
and made global.
(scm_struct_init): Renamed from init_struct and made global.
procedures if SCM_STRUCTF_ENTITY is set in vtable.
* struct.c, struct.h (scm_alloc_struct): Renamed from alloc_struct
and made global.
(scm_struct_init): Renamed from init_struct and made global.
syntactic forms, similar to SCM_PROC.
* debug.c, eval.c, evalext.c: use SCM_SYNTAX to declare all special
forms, and SCM_SYMBOL or SCM_GLOBAL_SYMBOL to delcare C variables for
the name symbols when needed.
take the address of _into; it might be a register. Just have
scm_debug_newcell return the new cell.
* gc.c (scm_debug_newcell): Just return the new cell, instead of
taking the address of a place to store it as an argument.
* gc.h (scm_debug_newcell): Change declaration.
(Thanks to Greg Harvey.)
definitions of the rudimentary classes described by objects.h.
* objects.c, objects.h (scm_entity_p): New procedure. Together
with the predicates scm_procedure_p and scm_struct_p, this
predicate makes it possible to differ between structs, entities
and operators.
handle operators and entities.
(scm_procedure_property): No need to call scm_procedure_p since
scm_i_procedure_arity now does all necessary type checking.
Added #include "objects.h".
(scm_make_hook): Optional argument defines number of arguments to
the hook.
(scm_make_named_hook): Take number of args as second arg.
(scm_run_hook): Renamed from scm_run_hooks (old name kept for a
while); First arg is the hook. The rest are arguments passed on
to the hook procedures.
s_add_hook_x --> s_remove_hook_x.
(scm_add_hook_x, scm_remove_hook_x): Hooks now takes arguments.
Added #include "procprop.h"
* feature.c, feature.h (scm_reset_hook_x): New procedure.
(scm_make_hook): Optional argument defines number of arguments to
the hook.
(scm_make_named_hook): Take number of args as second arg.
(scm_run_hook): Renamed from scm_run_hooks (old name kept for a
while); First arg is the hook. The rest are arguments passed on
to the hook procedures.
scm_logbit_p): Do the computation in ulongs. This is not as nice
as doing it in bignums, but at least it's good enough for
manipulating flags in 32-bit words. (Thanks to Jim Wilson.)
is necessary in order to interface the object system to Guile
properly. The guts of these modules will be replaced by the new
module system in the future.)
Previously, structs implanted in code were interpreted as forms
the operator of which was a gloc. We solve this by checking for
the zero in the emulated vcell in the struct vtable. Since
implanted structs always will look like forms with a gloc
operator, execution will only be slowed down by maximally one
extra test-and-branch per application.
(coop_condition_variable_wait_mutex): Folded logic of
coop_mutex_unlock into coop_condition_variable_wait_mutex to
prevent condvar signal lossage. Previously, another thread could
start to run after unlocking the mutex but before putting the
current thread on the wait queue. If that thread then would
signal the first, the signal would be lost. (Thanks to Christian
Lynbech.)
