04b9147e15
Blanket wide to all .c and .h files. Some files originating from ST are difficult to deal with (license wise) so it was left out of those. Also merged modpyb.h, modos.h, modstm.h and modtime.h in stmhal/.
100 lines
3.6 KiB
C
100 lines
3.6 KiB
C
/*
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* This file is part of the Micro Python project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2013, 2014 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <string.h>
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#include "mpconfig.h"
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#include "nlr.h"
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#include "misc.h"
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#include "qstr.h"
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#include "obj.h"
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#include "objtuple.h"
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#include "runtime.h"
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typedef struct _mp_obj_closure_t {
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mp_obj_base_t base;
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mp_obj_t fun;
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machine_uint_t n_closed;
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mp_obj_t closed[];
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} mp_obj_closure_t;
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mp_obj_t closure_call(mp_obj_t self_in, uint n_args, uint n_kw, const mp_obj_t *args) {
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mp_obj_closure_t *self = self_in;
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// need to concatenate closed-over-vars and args
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int n_total = self->n_closed + n_args + 2 * n_kw;
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if (n_total <= 5) {
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// use stack to allocate temporary args array
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mp_obj_t args2[5];
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memcpy(args2, self->closed, self->n_closed * sizeof(mp_obj_t));
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memcpy(args2 + self->n_closed, args, (n_args + 2 * n_kw) * sizeof(mp_obj_t));
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return mp_call_function_n_kw(self->fun, self->n_closed + n_args, n_kw, args2);
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} else {
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// use heap to allocate temporary args array
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mp_obj_t *args2 = m_new(mp_obj_t, n_total);
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memcpy(args2, self->closed, self->n_closed * sizeof(mp_obj_t));
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memcpy(args2 + self->n_closed, args, (n_args + 2 * n_kw) * sizeof(mp_obj_t));
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mp_obj_t res = mp_call_function_n_kw(self->fun, self->n_closed + n_args, n_kw, args2);
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m_del(mp_obj_t, args2, n_total);
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return res;
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}
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}
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#if MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_DETAILED
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STATIC void closure_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t o_in, mp_print_kind_t kind) {
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mp_obj_closure_t *o = o_in;
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print(env, "<closure %s at %p, n_closed=%u ", mp_obj_fun_get_name(o->fun), o, o->n_closed);
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for (int i = 0; i < o->n_closed; i++) {
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if (o->closed[i] == MP_OBJ_NULL) {
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print(env, "(nil)");
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} else {
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mp_obj_print_helper(print, env, o->closed[i], PRINT_REPR);
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}
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print(env, " ");
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}
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print(env, ">");
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}
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#endif
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const mp_obj_type_t closure_type = {
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{ &mp_type_type },
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.name = MP_QSTR_closure,
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#if MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_DETAILED
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.print = closure_print,
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#endif
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.call = closure_call,
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};
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mp_obj_t mp_obj_new_closure(mp_obj_t fun, uint n_closed_over, const mp_obj_t *closed) {
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mp_obj_closure_t *o = m_new_obj_var(mp_obj_closure_t, mp_obj_t, n_closed_over);
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o->base.type = &closure_type;
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o->fun = fun;
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o->n_closed = n_closed_over;
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memcpy(o->closed, closed, n_closed_over * sizeof(mp_obj_t));
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return o;
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}
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