text: /*
   * This file is part of the MicroPython project, http://micropython.org/
   *
   * The MIT License (MIT)
   *
   * SPDX-FileCopyrightText: Copyright (c) 2013, 2014 Damien P. George
   * SPDX-FileCopyrightText: Copyright (c) 2014 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
   * 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 <string.h>
  
  #include "py/objtuple.h"
  #include "py/runtime.h"
  #include "py/objstr.h"
  #include "py/objnamedtuple.h"
  #include "py/objtype.h"
  
  #include "supervisor/shared/translate.h"
  
  #if MICROPY_PY_COLLECTIONS
  
  size_t mp_obj_namedtuple_find_field(const mp_obj_namedtuple_type_t *type, qstr name) {
      for (size_t i = 0; i < type->n_fields; i++) {
          if (type->fields[i] == name) {
              return i;
          }
      }
      return (size_t)-1;
  }
  
  #if MICROPY_PY_COLLECTIONS_NAMEDTUPLE__ASDICT
  STATIC mp_obj_t namedtuple_asdict(mp_obj_t self_in) {
      mp_obj_namedtuple_t *self = MP_OBJ_TO_PTR(self_in);
      const qstr *fields = ((mp_obj_namedtuple_type_t *)self->tuple.base.type)->fields;
      mp_obj_t dict = mp_obj_new_dict(self->tuple.len);
      mp_obj_dict_t *dictObj = MP_OBJ_TO_PTR(dict);
      #if MICROPY_PY_COLLECTIONS_ORDEREDDICT
      // make it an OrderedDict
      dictObj->base.type = &mp_type_ordereddict;
      dictObj->map.is_ordered = 1;
      #else
      dictObj->base.type = &mp_type_dict;
      dictObj->map.is_ordered = 0;
      #endif
  
      for (size_t i = 0; i < self->tuple.len; ++i) {
          mp_obj_dict_store(dict, MP_OBJ_NEW_QSTR(fields[i]), self->tuple.items[i]);
      }
      return dict;
  }
  MP_DEFINE_CONST_FUN_OBJ_1(namedtuple_asdict_obj, namedtuple_asdict);
  #endif
  
  void namedtuple_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t kind) {
      (void)kind;
      mp_obj_namedtuple_t *o = MP_OBJ_TO_PTR(o_in);
      mp_printf(print, "%q", o->tuple.base.type->name);
      const qstr *fields = ((mp_obj_namedtuple_type_t *)o->tuple.base.type)->fields;
      mp_obj_attrtuple_print_helper(print, fields, &o->tuple);
  }
  
  void namedtuple_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest) {
      if (dest[0] == MP_OBJ_NULL) {
          // load attribute
          mp_obj_namedtuple_t *self = MP_OBJ_TO_PTR(self_in);
          #if MICROPY_PY_COLLECTIONS_NAMEDTUPLE__ASDICT
          if (attr == MP_QSTR__asdict) {
              dest[0] = MP_OBJ_FROM_PTR(&namedtuple_asdict_obj);
              dest[1] = self_in;
              return;
          }
          #endif
          size_t id = mp_obj_namedtuple_find_field((mp_obj_namedtuple_type_t *)self->tuple.base.type, attr);
          if (id == (size_t)-1) {
              return;
          }
          dest[0] = self->tuple.items[id];
      } else {
          // delete/store attribute
          // provide more detailed error message than we'd get by just returning
          mp_raise_AttributeError(translate("can't set attribute"));
      }
  }
  
  mp_obj_t namedtuple_make_new(const mp_obj_type_t *type_in, size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
      const mp_obj_namedtuple_type_t *type = (const mp_obj_namedtuple_type_t *)type_in;
      size_t num_fields = type->n_fields;
      size_t n_kw = 0;
      if (kw_args != NULL) {
          n_kw = kw_args->used;
      }
      if (n_args + n_kw != num_fields) {
          #if MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_TERSE
          mp_arg_error_terse_mismatch();
          #elif MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_NORMAL
          mp_raise_TypeError_varg(
              translate("function takes %d positional arguments but %d were given"),
              num_fields, n_args + n_kw);
          #else
          mp_raise_TypeError_varg(
              translate("%q() takes %d positional arguments but %d were given"),
              type->base.name, num_fields, n_args + n_kw);
          #endif
      }
  
      // Create a tuple and set the type to this namedtuple
      mp_obj_tuple_t *tuple = MP_OBJ_TO_PTR(mp_obj_new_tuple(num_fields, NULL));
      tuple->base.type = type_in;
  
      // Copy the positional args into the first slots of the namedtuple
      memcpy(&tuple->items[0], args, sizeof(mp_obj_t) * n_args);
  
      // Fill in the remaining slots with the keyword args
      memset(&tuple->items[n_args], 0, sizeof(mp_obj_t) * n_kw);
      for (size_t i = 0; i < n_kw; i++) {
          qstr kw = mp_obj_str_get_qstr(kw_args->table[i].key);
          size_t id = mp_obj_namedtuple_find_field(type, kw);
          if (id == (size_t)-1) {
              #if MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_TERSE
              mp_arg_error_terse_mismatch();
              #else
              mp_raise_TypeError_varg(
                  translate("unexpected keyword argument '%q'"), kw);
              #endif
          }
          if (tuple->items[id] != MP_OBJ_NULL) {
              #if MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_TERSE
              mp_arg_error_terse_mismatch();
              #else
              mp_raise_TypeError_varg(
                  translate("function got multiple values for argument '%q'"), kw);
              #endif
          }
          tuple->items[id] = kw_args->table[i].value;
      }
  
      return MP_OBJ_FROM_PTR(tuple);
  }
  
  mp_obj_namedtuple_type_t *mp_obj_new_namedtuple_base(size_t n_fields, mp_obj_t *fields) {
      mp_obj_namedtuple_type_t *o = m_new_obj_var(mp_obj_namedtuple_type_t, qstr, n_fields);
      memset(&o->base, 0, sizeof(o->base));
      o->n_fields = n_fields;
      for (size_t i = 0; i < n_fields; i++) {
          o->fields[i] = mp_obj_str_get_qstr(fields[i]);
      }
      return o;
  }
  
  STATIC mp_obj_t mp_obj_new_namedtuple_type(qstr name, size_t n_fields, mp_obj_t *fields) {
      mp_obj_namedtuple_type_t *o = mp_obj_new_namedtuple_base(n_fields, fields);
      o->base.base.type = &mp_type_type;
      o->base.name = name;
      o->base.print = namedtuple_print;
      o->base.make_new = namedtuple_make_new;
      o->base.unary_op = mp_obj_tuple_unary_op;
      o->base.binary_op = mp_obj_tuple_binary_op;
      o->base.attr = namedtuple_attr;
      o->base.subscr = mp_obj_tuple_subscr;
      o->base.getiter = mp_obj_tuple_getiter;
      o->base.parent = &mp_type_tuple;
      return MP_OBJ_FROM_PTR(o);
  }
  
  STATIC mp_obj_t new_namedtuple_type(mp_obj_t name_in, mp_obj_t fields_in) {
      qstr name = mp_obj_str_get_qstr(name_in);
      size_t n_fields;
      mp_obj_t *fields;
      #if MICROPY_CPYTHON_COMPAT
      if (MP_OBJ_IS_STR(fields_in)) {
          fields_in = mp_obj_str_split(1, &fields_in);
      }
      #endif
      mp_obj_get_array(fields_in, &n_fields, &fields);
      return mp_obj_new_namedtuple_type(name, n_fields, fields);
  }
  MP_DEFINE_CONST_FUN_OBJ_2(mp_namedtuple_obj, new_namedtuple_type);
  
  #endif // MICROPY_PY_COLLECTIONS
  