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generics now dispatch as applicable structs

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* libguile/eval.i.c (CEVAL, SCM_APPLY): Dispatch applicable structs
  before pure generics. In practice what this means is that we never hit
  the mcache case, because all pure generics are applicable structs.
  We're moving over to having generics dispatch themselves. Also, they
  don't prepend the struct as an arg; in order to have that effect, the
  user has closures.

* libguile/goops.c (scm_apply_generic, scm_call_generic_0):
  (scm_call_generic_1, scm_call_generic_2, scm_call_generic_3): Dispatch
  directly to the struct procedures.
  (scm_var_make_extended_generic): Remove a duplicate definition for
  scm_var_make_extended_generic.
  (create_standard_classes): Mark all instances of
  <applicable-struct-class> (themselves classes) as applicable classes.
  Meaning: generics are now applicable structs.

* libguile/goops.h (SCM_CLASS_CLASS_LAYOUT): The hashsets are actually
  uw slots -- or at least, making subclasses maps the int slots to be uw
  slots

* libguile/vm-i-system.c (call, goto/args, mv-call): Dispatch applicable
  structs in the VM.

* module/oop/goops/dispatch.scm (emit-linear-dispatch): Fix bug in the
  non-rest cache miss case.
  (delayed-compile): Rework to avoid fluids.
  (cache-dispatch): Don't call `equal?', it causes bootstrapping
  problems with the primitive-generic equal?. Using our own version is
  faster anyway.
This commit is contained in:
Andy Wingo 2009-11-20 13:11:52 +01:00
parent 9f63ce021c
commit 2f652c6884
5 changed files with 107 additions and 112 deletions
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15
libguile/vm-i-system.c
View file

@ -761,6 +761,11 @@ VM_DEFINE_INSTRUCTION (53, call, "call", 1, -1, 1)
APPLY_HOOK ();
NEXT;
}
if (SCM_STRUCTP (x) && SCM_STRUCT_APPLICABLE_P (x))
{
sp[-nargs] = SCM_STRUCT_PROCEDURE (x);
goto vm_call;
}
if (SCM_STRUCTP (x) && SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_PURE_GENERIC)
{
SCM args = SCM_EOL;
@ -845,6 +850,11 @@ VM_DEFINE_INSTRUCTION (54, goto_args, "goto/args", 1, -1, 1)
APPLY_HOOK ();
NEXT;
}
if (SCM_STRUCTP (x) && SCM_STRUCT_APPLICABLE_P (x))
{
sp[-nargs] = SCM_STRUCT_PROCEDURE (x);
goto vm_goto_args;
}
if (SCM_STRUCTP (x) && SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_PURE_GENERIC)
{
SCM args = SCM_EOL;
@ -937,6 +947,11 @@ VM_DEFINE_INSTRUCTION (57, mv_call, "mv-call", 4, -1, 1)
APPLY_HOOK ();
NEXT;
}
if (SCM_STRUCTP (x) && SCM_STRUCT_APPLICABLE_P (x))
{
sp[-nargs] = SCM_STRUCT_PROCEDURE (x);
goto vm_mv_call;
}
if (SCM_STRUCTP (x) && SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_PURE_GENERIC)
{
SCM args = SCM_EOL;