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epsilon-master/python/src/py/objcell.c 2.38 KB
6663b6c9   adorian   projet complet av...
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  /*
   * This file is part of the MicroPython project, http://micropython.org/
   *
   * The MIT License (MIT)
   *
   * Copyright (c) 2013, 2014 Damien P. George
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
   * THE SOFTWARE.
   */
  
  #include "py/obj.h"
  
  typedef struct _mp_obj_cell_t {
      mp_obj_base_t base;
      mp_obj_t obj;
  } mp_obj_cell_t;
  
  mp_obj_t mp_obj_cell_get(mp_obj_t self_in) {
      mp_obj_cell_t *self = MP_OBJ_TO_PTR(self_in);
      return self->obj;
  }
  
  void mp_obj_cell_set(mp_obj_t self_in, mp_obj_t obj) {
      mp_obj_cell_t *self = MP_OBJ_TO_PTR(self_in);
      self->obj = obj;
  }
  
  #if MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_DETAILED
  STATIC void cell_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t kind) {
      (void)kind;
      mp_obj_cell_t *o = MP_OBJ_TO_PTR(o_in);
      mp_printf(print, "<cell %p ", o->obj);
      if (o->obj == MP_OBJ_NULL) {
          mp_print_str(print, "(nil)");
      } else {
          mp_obj_print_helper(print, o->obj, PRINT_REPR);
      }
      mp_print_str(print, ">");
  }
  #endif
  
  STATIC const mp_obj_type_t mp_type_cell = {
      { &mp_type_type },
      .name = MP_QSTR_, // cell representation is just value in < >
  #if MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_DETAILED
      .print = cell_print,
  #endif
  };
  
  mp_obj_t mp_obj_new_cell(mp_obj_t obj) {
      mp_obj_cell_t *o = m_new_obj(mp_obj_cell_t);
      o->base.type = &mp_type_cell;
      o->obj = obj;
      return MP_OBJ_FROM_PTR(o);
  }