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build5/epsilon-master/python/src/py/objattrtuple.c 3.26 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) 2015 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/objtuple.h"
  
  #if MICROPY_PY_ATTRTUPLE || MICROPY_PY_COLLECTIONS
  
  // this helper function is used by collections.namedtuple
  #if !MICROPY_PY_COLLECTIONS
  STATIC
  #endif
  void mp_obj_attrtuple_print_helper(const mp_print_t *print, const qstr *fields, mp_obj_tuple_t *o) {
      mp_print_str(print, "(");
      for (size_t i = 0; i < o->len; i++) {
          if (i > 0) {
              mp_print_str(print, ", ");
          }
          mp_printf(print, "%q=", fields[i]);
          mp_obj_print_helper(print, o->items[i], PRINT_REPR);
      }
      mp_print_str(print, ")");
  }
  
  #endif
  
  #if MICROPY_PY_ATTRTUPLE
  
  STATIC void mp_obj_attrtuple_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t kind) {
      (void)kind;
      mp_obj_tuple_t *o = MP_OBJ_TO_PTR(o_in);
      const qstr *fields = (const qstr*)MP_OBJ_TO_PTR(o->items[o->len]);
      mp_obj_attrtuple_print_helper(print, fields, o);
  }
  
  STATIC void mp_obj_attrtuple_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest) {
      if (dest[0] == MP_OBJ_NULL) {
          // load attribute
          mp_obj_tuple_t *self = MP_OBJ_TO_PTR(self_in);
          size_t len = self->len;
          const qstr *fields = (const qstr*)MP_OBJ_TO_PTR(self->items[len]);
          for (size_t i = 0; i < len; i++) {
              if (fields[i] == attr) {
                  dest[0] = self->items[i];
                  return;
              }
          }
      }
  }
  
  mp_obj_t mp_obj_new_attrtuple(const qstr *fields, size_t n, const mp_obj_t *items) {
      mp_obj_tuple_t *o = m_new_obj_var(mp_obj_tuple_t, mp_obj_t, n + 1);
      o->base.type = &mp_type_attrtuple;
      o->len = n;
      for (size_t i = 0; i < n; i++) {
          o->items[i] = items[i];
      }
      o->items[n] = MP_OBJ_FROM_PTR(fields);
      return MP_OBJ_FROM_PTR(o);
  }
  
  const mp_obj_type_t mp_type_attrtuple = {
      { &mp_type_type },
      .name = MP_QSTR_tuple, // reuse tuple to save on a qstr
      .print = mp_obj_attrtuple_print,
      .unary_op = mp_obj_tuple_unary_op,
      .binary_op = mp_obj_tuple_binary_op,
      .attr = mp_obj_attrtuple_attr,
      .subscr = mp_obj_tuple_subscr,
      .getiter = mp_obj_tuple_getiter,
  };
  
  #endif // MICROPY_PY_ATTRTUPLE