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py/objtype: Implement __call__ handling for an instance w/o heap alloc.

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By refactoring and reusing code from objboundmeth.
This commit is contained in:
Paul Sokolovsky 2016-11-22 01:33:55 +03:00
parent 7e820792da
commit 037e6912c6
3 changed files with 18 additions and 14 deletions
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16
py/objboundmeth.c
View File

@ -47,11 +47,8 @@ STATIC void bound_meth_print(const mp_print_t *print, mp_obj_t o_in, mp_print_ki
}
#endif
STATIC mp_obj_t bound_meth_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
mp_obj_bound_meth_t *self = MP_OBJ_TO_PTR(self_in);
// need to insert self->self before all other args and then call self->meth
mp_obj_t mp_call_method_self_n_kw(mp_obj_t meth, mp_obj_t self, size_t n_args, size_t n_kw, const mp_obj_t *args) {
// need to insert self before all other args and then call meth
size_t n_total = n_args + 2 * n_kw;
mp_obj_t *args2 = NULL;
mp_obj_t *free_args2 = NULL;
@ -64,15 +61,20 @@ STATIC mp_obj_t bound_meth_call(mp_obj_t self_in, size_t n_args, size_t n_kw, co
// (fallback to) use stack to allocate temporary args array
args2 = alloca(sizeof(mp_obj_t) * (1 + n_total));
}
args2[0] = self->self;
args2[0] = self;
memcpy(args2 + 1, args, n_total * sizeof(mp_obj_t));
mp_obj_t res = mp_call_function_n_kw(self->meth, n_args + 1, n_kw, &args2[0]);
mp_obj_t res = mp_call_function_n_kw(meth, n_args + 1, n_kw, args2);
if (free_args2 != NULL) {
m_del(mp_obj_t, free_args2, 1 + n_total);
}
return res;
}
STATIC mp_obj_t bound_meth_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
mp_obj_bound_meth_t *self = MP_OBJ_TO_PTR(self_in);
return mp_call_method_self_n_kw(self->meth, self->self, n_args, n_kw, args);
}
#if MICROPY_PY_FUNCTION_ATTRS
STATIC void bound_meth_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest) {
if (dest[0] != MP_OBJ_NULL) {

15
py/objtype.c
View File

@ -4,7 +4,7 @@
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
* Copyright (c) 2014 Paul Sokolovsky
* Copyright (c) 2014-2016 Paul Sokolovsky
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
@ -687,9 +687,8 @@ STATIC mp_obj_t instance_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value
}
}
STATIC mp_obj_t mp_obj_instance_get_call(mp_obj_t self_in) {
STATIC mp_obj_t mp_obj_instance_get_call(mp_obj_t self_in, mp_obj_t *member) {
mp_obj_instance_t *self = MP_OBJ_TO_PTR(self_in);
mp_obj_t member[2] = {MP_OBJ_NULL, MP_OBJ_NULL};
struct class_lookup_data lookup = {
.obj = self,
.attr = MP_QSTR___call__,
@ -702,11 +701,13 @@ STATIC mp_obj_t mp_obj_instance_get_call(mp_obj_t self_in) {
}
bool mp_obj_instance_is_callable(mp_obj_t self_in) {
return mp_obj_instance_get_call(self_in) != MP_OBJ_NULL;
mp_obj_t member[2] = {MP_OBJ_NULL, MP_OBJ_NULL};
return mp_obj_instance_get_call(self_in, member) != MP_OBJ_NULL;
}
mp_obj_t mp_obj_instance_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
mp_obj_t call = mp_obj_instance_get_call(self_in);
mp_obj_t member[2] = {MP_OBJ_NULL, MP_OBJ_NULL};
mp_obj_t call = mp_obj_instance_get_call(self_in, member);
if (call == MP_OBJ_NULL) {
if (MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_TERSE) {
mp_raise_msg(&mp_type_TypeError, "object not callable");
@ -719,8 +720,8 @@ mp_obj_t mp_obj_instance_call(mp_obj_t self_in, size_t n_args, size_t n_kw, cons
if (call == MP_OBJ_SENTINEL) {
return mp_call_function_n_kw(self->subobj[0], n_args, n_kw, args);
}
mp_obj_t meth = mp_obj_new_bound_meth(call, self_in);
return mp_call_function_n_kw(meth, n_args, n_kw, args);
return mp_call_method_self_n_kw(member[0], member[1], n_args, n_kw, args);
}
STATIC mp_obj_t instance_getiter(mp_obj_t self_in) {

1
py/runtime.h
View File

@ -95,6 +95,7 @@ mp_obj_t mp_call_function_2(mp_obj_t fun, mp_obj_t arg1, mp_obj_t arg2);
mp_obj_t mp_call_function_n_kw(mp_obj_t fun, mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args);
mp_obj_t mp_call_method_n_kw(mp_uint_t n_args, mp_uint_t n_kw, const mp_obj_t *args);
mp_obj_t mp_call_method_n_kw_var(bool have_self, mp_uint_t n_args_n_kw, const mp_obj_t *args);
mp_obj_t mp_call_method_self_n_kw(mp_obj_t meth, mp_obj_t self, size_t n_args, size_t n_kw, const mp_obj_t *args);
// Call function and catch/dump exception - for Python callbacks from C code
void mp_call_function_1_protected(mp_obj_t fun, mp_obj_t arg);
void mp_call_function_2_protected(mp_obj_t fun, mp_obj_t arg1, mp_obj_t arg2);