/*
   * 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 <stdio.h>
  #include <assert.h>
  
  #include "py/smallint.h"
  #include "py/objint.h"
  #include "py/objstr.h"
  #include "py/objtype.h"
  #include "py/runtime.h"
  #include "py/builtin.h"
  #include "py/stream.h"
  
  #if MICROPY_PY_BUILTINS_FLOAT
  #include <math.h>
  #endif
  
  #if MICROPY_PY_IO
  extern struct _mp_dummy_t mp_sys_stdout_obj; // type is irrelevant, just need pointer
  #endif
  
  // args[0] is function from class body
  // args[1] is class name
  // args[2:] are base objects
  STATIC mp_obj_t mp_builtin___build_class__(size_t n_args, const mp_obj_t *args) {
      assert(2 <= n_args);
  
      // set the new classes __locals__ object
      mp_obj_dict_t *old_locals = mp_locals_get();
      mp_obj_t class_locals = mp_obj_new_dict(0);
      mp_locals_set(MP_OBJ_TO_PTR(class_locals));
  
      // call the class code
      mp_obj_t cell = mp_call_function_0(args[0]);
  
      // restore old __locals__ object
      mp_locals_set(old_locals);
  
      // get the class type (meta object) from the base objects
      mp_obj_t meta;
      if (n_args == 2) {
          // no explicit bases, so use 'type'
          meta = MP_OBJ_FROM_PTR(&mp_type_type);
      } else {
          // use type of first base object
          meta = MP_OBJ_FROM_PTR(mp_obj_get_type(args[2]));
      }
  
      // TODO do proper metaclass resolution for multiple base objects
  
      // create the new class using a call to the meta object
      mp_obj_t meta_args[3];
      meta_args[0] = args[1]; // class name
      meta_args[1] = mp_obj_new_tuple(n_args - 2, args + 2); // tuple of bases
      meta_args[2] = class_locals; // dict of members
      mp_obj_t new_class = mp_call_function_n_kw(meta, 3, 0, meta_args);
  
      // store into cell if neede
      if (cell != mp_const_none) {
          mp_obj_cell_set(cell, new_class);
      }
  
      return new_class;
  }
  MP_DEFINE_CONST_FUN_OBJ_VAR(mp_builtin___build_class___obj, 2, mp_builtin___build_class__);
  
  STATIC mp_obj_t mp_builtin_abs(mp_obj_t o_in) {
      return mp_unary_op(MP_UNARY_OP_ABS, o_in);
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_abs_obj, mp_builtin_abs);
  
  STATIC mp_obj_t mp_builtin_all(mp_obj_t o_in) {
      mp_obj_iter_buf_t iter_buf;
      mp_obj_t iterable = mp_getiter(o_in, &iter_buf);
      mp_obj_t item;
      while ((item = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
          if (!mp_obj_is_true(item)) {
              return mp_const_false;
          }
      }
      return mp_const_true;
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_all_obj, mp_builtin_all);
  
  STATIC mp_obj_t mp_builtin_any(mp_obj_t o_in) {
      mp_obj_iter_buf_t iter_buf;
      mp_obj_t iterable = mp_getiter(o_in, &iter_buf);
      mp_obj_t item;
      while ((item = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
          if (mp_obj_is_true(item)) {
              return mp_const_true;
          }
      }
      return mp_const_false;
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_any_obj, mp_builtin_any);
  
  STATIC mp_obj_t mp_builtin_bin(mp_obj_t o_in) {
      mp_obj_t args[] = { MP_OBJ_NEW_QSTR(MP_QSTR__brace_open__colon__hash_b_brace_close_), o_in };
      return mp_obj_str_format(MP_ARRAY_SIZE(args), args, NULL);
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_bin_obj, mp_builtin_bin);
  
  STATIC mp_obj_t mp_builtin_callable(mp_obj_t o_in) {
      if (mp_obj_is_callable(o_in)) {
          return mp_const_true;
      } else {
          return mp_const_false;
      }
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_callable_obj, mp_builtin_callable);
  
  STATIC mp_obj_t mp_builtin_chr(mp_obj_t o_in) {
      #if MICROPY_PY_BUILTINS_STR_UNICODE
      mp_uint_t c = mp_obj_get_int(o_in);
      uint8_t str[4];
      int len = 0;
      if (c < 0x80) {
          *str = c; len = 1;
      } else if (c < 0x800) {
          str[0] = (c >> 6) | 0xC0;
          str[1] = (c & 0x3F) | 0x80;
          len = 2;
      } else if (c < 0x10000) {
          str[0] = (c >> 12) | 0xE0;
          str[1] = ((c >> 6) & 0x3F) | 0x80;
          str[2] = (c & 0x3F) | 0x80;
          len = 3;
      } else if (c < 0x110000) {
          str[0] = (c >> 18) | 0xF0;
          str[1] = ((c >> 12) & 0x3F) | 0x80;
          str[2] = ((c >> 6) & 0x3F) | 0x80;
          str[3] = (c & 0x3F) | 0x80;
          len = 4;
      } else {
          mp_raise_ValueError("chr() arg not in range(0x110000)");
      }
      return mp_obj_new_str_via_qstr((char*)str, len);
      #else
      mp_int_t ord = mp_obj_get_int(o_in);
      if (0 <= ord && ord <= 0xff) {
          uint8_t str[1] = {ord};
          return mp_obj_new_str_via_qstr((char*)str, 1);
      } else {
          mp_raise_ValueError("chr() arg not in range(256)");
      }
      #endif
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_chr_obj, mp_builtin_chr);
  
  STATIC mp_obj_t mp_builtin_dir(size_t n_args, const mp_obj_t *args) {
      mp_obj_t dir = mp_obj_new_list(0, NULL);
      if (n_args == 0) {
          // Make a list of names in the local namespace
          mp_obj_dict_t *dict = mp_locals_get();
          for (size_t i = 0; i < dict->map.alloc; i++) {
              if (MP_MAP_SLOT_IS_FILLED(&dict->map, i)) {
                  mp_obj_list_append(dir, dict->map.table[i].key);
              }
          }
      } else { // n_args == 1
          // Make a list of names in the given object
          // Implemented by probing all possible qstrs with mp_load_method_maybe
          size_t nqstr = QSTR_TOTAL();
          for (size_t i = MP_QSTR_ + 1; i < nqstr; ++i) {
              mp_obj_t dest[2];
              mp_load_method_protected(args[0], i, dest, false);
              if (dest[0] != MP_OBJ_NULL) {
                  #if MICROPY_PY_ALL_SPECIAL_METHODS
                  // Support for __dir__: see if we can dispatch to this special method
                  // This relies on MP_QSTR__dir__ being first after MP_QSTR_
                  if (i == MP_QSTR___dir__ && dest[1] != MP_OBJ_NULL) {
                      return mp_call_method_n_kw(0, 0, dest);
                  }
                  #endif
                  mp_obj_list_append(dir, MP_OBJ_NEW_QSTR(i));
              }
          }
      }
      return dir;
  }
  MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_dir_obj, 0, 1, mp_builtin_dir);
  
  STATIC mp_obj_t mp_builtin_divmod(mp_obj_t o1_in, mp_obj_t o2_in) {
      return mp_binary_op(MP_BINARY_OP_DIVMOD, o1_in, o2_in);
  }
  MP_DEFINE_CONST_FUN_OBJ_2(mp_builtin_divmod_obj, mp_builtin_divmod);
  
  STATIC mp_obj_t mp_builtin_hash(mp_obj_t o_in) {
      // result is guaranteed to be a (small) int
      return mp_unary_op(MP_UNARY_OP_HASH, o_in);
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_hash_obj, mp_builtin_hash);
  
  STATIC mp_obj_t mp_builtin_hex(mp_obj_t o_in) {
      return mp_binary_op(MP_BINARY_OP_MODULO, MP_OBJ_NEW_QSTR(MP_QSTR__percent__hash_x), o_in);
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_hex_obj, mp_builtin_hex);
  
  #if MICROPY_PY_BUILTINS_INPUT
  
  #include "py/mphal.h"
  #include "lib/mp-readline/readline.h"
  
  // A port can define mp_hal_readline if they want to use a custom function here
  #ifndef mp_hal_readline
  #define mp_hal_readline readline
  #endif
  
  STATIC mp_obj_t mp_builtin_input(size_t n_args, const mp_obj_t *args) {
      if (n_args == 1) {
          mp_obj_print(args[0], PRINT_STR);
      }
      vstr_t line;
      vstr_init(&line, 16);
      int ret = mp_hal_readline(&line, "");
      if (ret == CHAR_CTRL_C) {
          nlr_raise(mp_obj_new_exception(&mp_type_KeyboardInterrupt));
      }
      if (line.len == 0 && ret == CHAR_CTRL_D) {
          nlr_raise(mp_obj_new_exception(&mp_type_EOFError));
      }
      return mp_obj_new_str_from_vstr(&mp_type_str, &line);
  }
  MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_input_obj, 0, 1, mp_builtin_input);
  
  #endif
  
  STATIC mp_obj_t mp_builtin_iter(mp_obj_t o_in) {
      return mp_getiter(o_in, NULL);
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_iter_obj, mp_builtin_iter);
  
  #if MICROPY_PY_BUILTINS_MIN_MAX
  
  STATIC mp_obj_t mp_builtin_min_max(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs, mp_uint_t op) {
      mp_map_elem_t *key_elem = mp_map_lookup(kwargs, MP_OBJ_NEW_QSTR(MP_QSTR_key), MP_MAP_LOOKUP);
      mp_map_elem_t *default_elem;
      mp_obj_t key_fn = key_elem == NULL ? MP_OBJ_NULL : key_elem->value;
      if (n_args == 1) {
          // given an iterable
          mp_obj_iter_buf_t iter_buf;
          mp_obj_t iterable = mp_getiter(args[0], &iter_buf);
          mp_obj_t best_key = MP_OBJ_NULL;
          mp_obj_t best_obj = MP_OBJ_NULL;
          mp_obj_t item;
          while ((item = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
              mp_obj_t key = key_fn == MP_OBJ_NULL ? item : mp_call_function_1(key_fn, item);
              if (best_obj == MP_OBJ_NULL || (mp_binary_op(op, key, best_key) == mp_const_true)) {
                  best_key = key;
                  best_obj = item;
              }
          }
          if (best_obj == MP_OBJ_NULL) {
              default_elem = mp_map_lookup(kwargs, MP_OBJ_NEW_QSTR(MP_QSTR_default), MP_MAP_LOOKUP);
              if (default_elem != NULL) {
                  best_obj = default_elem->value;
              } else {
                  mp_raise_ValueError("arg is an empty sequence");
              }
          }
          return best_obj;
      } else {
          // given many args
          mp_obj_t best_key = MP_OBJ_NULL;
          mp_obj_t best_obj = MP_OBJ_NULL;
          for (size_t i = 0; i < n_args; i++) {
              mp_obj_t key = key_fn == MP_OBJ_NULL ? args[i] : mp_call_function_1(key_fn, args[i]);
              if (best_obj == MP_OBJ_NULL || (mp_binary_op(op, key, best_key) == mp_const_true)) {
                  best_key = key;
                  best_obj = args[i];
              }
          }
          return best_obj;
      }
  }
  
  STATIC mp_obj_t mp_builtin_max(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
      return mp_builtin_min_max(n_args, args, kwargs, MP_BINARY_OP_MORE);
  }
  MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_max_obj, 1, mp_builtin_max);
  
  STATIC mp_obj_t mp_builtin_min(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
      return mp_builtin_min_max(n_args, args, kwargs, MP_BINARY_OP_LESS);
  }
  MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_min_obj, 1, mp_builtin_min);
  
  #endif
  
  STATIC mp_obj_t mp_builtin_next(mp_obj_t o) {
      mp_obj_t ret = mp_iternext_allow_raise(o);
      if (ret == MP_OBJ_STOP_ITERATION) {
          nlr_raise(mp_obj_new_exception(&mp_type_StopIteration));
      } else {
          return ret;
      }
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_next_obj, mp_builtin_next);
  
  STATIC mp_obj_t mp_builtin_oct(mp_obj_t o_in) {
      return mp_binary_op(MP_BINARY_OP_MODULO, MP_OBJ_NEW_QSTR(MP_QSTR__percent__hash_o), o_in);
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_oct_obj, mp_builtin_oct);
  
  STATIC mp_obj_t mp_builtin_ord(mp_obj_t o_in) {
      size_t len;
      const byte *str = (const byte*)mp_obj_str_get_data(o_in, &len);
      #if MICROPY_PY_BUILTINS_STR_UNICODE
      if (MP_OBJ_IS_STR(o_in)) {
          len = utf8_charlen(str, len);
          if (len == 1) {
              return mp_obj_new_int(utf8_get_char(str));
          }
      } else
      #endif
      {
          // a bytes object, or a str without unicode support (don't sign extend the char)
          if (len == 1) {
              return MP_OBJ_NEW_SMALL_INT(str[0]);
          }
      }
  
      if (MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_TERSE) {
          mp_raise_TypeError("ord expects a character");
      } else {
          nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError,
              "ord() expected a character, but string of length %d found", (int)len));
      }
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_ord_obj, mp_builtin_ord);
  
  STATIC mp_obj_t mp_builtin_pow(size_t n_args, const mp_obj_t *args) {
      switch (n_args) {
          case 2: return mp_binary_op(MP_BINARY_OP_POWER, args[0], args[1]);
          default:
  #if !MICROPY_PY_BUILTINS_POW3
              mp_raise_msg(&mp_type_NotImplementedError, "3-arg pow() not supported");
  #elif MICROPY_LONGINT_IMPL != MICROPY_LONGINT_IMPL_MPZ
              return mp_binary_op(MP_BINARY_OP_MODULO, mp_binary_op(MP_BINARY_OP_POWER, args[0], args[1]), args[2]);
  #else
              return mp_obj_int_pow3(args[0], args[1], args[2]);
  #endif
      }
  }
  MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_pow_obj, 2, 3, mp_builtin_pow);
  
  STATIC mp_obj_t mp_builtin_print(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
      enum { ARG_sep, ARG_end, ARG_file };
      static const mp_arg_t allowed_args[] = {
          { MP_QSTR_sep, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_QSTR(MP_QSTR__space_)} },
          { MP_QSTR_end, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_QSTR(MP_QSTR__0x0a_)} },
          #if MICROPY_PY_IO && MICROPY_PY_SYS_STDFILES
          { MP_QSTR_file, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_PTR(&mp_sys_stdout_obj)} },
          #endif
      };
  
      // parse args (a union is used to reduce the amount of C stack that is needed)
      union {
          mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
          size_t len[2];
      } u;
      mp_arg_parse_all(0, NULL, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, u.args);
  
      #if MICROPY_PY_IO && MICROPY_PY_SYS_STDFILES
      // TODO file may not be a concrete object (eg it could be a small-int)
      mp_print_t print = {MP_OBJ_TO_PTR(u.args[ARG_file].u_obj), mp_stream_write_adaptor};
      #endif
  
      // extract the objects first because we are going to use the other part of the union
      mp_obj_t sep = u.args[ARG_sep].u_obj;
      mp_obj_t end = u.args[ARG_end].u_obj;
      const char *sep_data = mp_obj_str_get_data(sep, &u.len[0]);
      const char *end_data = mp_obj_str_get_data(end, &u.len[1]);
  
      for (size_t i = 0; i < n_args; i++) {
          if (i > 0) {
              #if MICROPY_PY_IO && MICROPY_PY_SYS_STDFILES
              mp_stream_write_adaptor(print.data, sep_data, u.len[0]);
              #else
              mp_print_strn(&mp_plat_print, sep_data, u.len[0], 0, 0, 0);
              #endif
          }
          #if MICROPY_PY_IO && MICROPY_PY_SYS_STDFILES
          mp_obj_print_helper(&print, pos_args[i], PRINT_STR);
          #else
          mp_obj_print_helper(&mp_plat_print, pos_args[i], PRINT_STR);
          #endif
      }
      #if MICROPY_PY_IO && MICROPY_PY_SYS_STDFILES
      mp_stream_write_adaptor(print.data, end_data, u.len[1]);
      #else
      mp_print_strn(&mp_plat_print, end_data, u.len[1], 0, 0, 0);
      #endif
      return mp_const_none;
  }
  MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_print_obj, 0, mp_builtin_print);
  
  STATIC mp_obj_t mp_builtin___repl_print__(mp_obj_t o) {
      if (o != mp_const_none) {
          mp_obj_print_helper(MP_PYTHON_PRINTER, o, PRINT_REPR);
          mp_print_str(MP_PYTHON_PRINTER, "\n");
          #if MICROPY_CAN_OVERRIDE_BUILTINS
          // Set "_" special variable
          mp_obj_t dest[2] = {MP_OBJ_SENTINEL, o};
          mp_type_module.attr(MP_OBJ_FROM_PTR(&mp_module_builtins), MP_QSTR__, dest);
          #endif
      }
      return mp_const_none;
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin___repl_print___obj, mp_builtin___repl_print__);
  
  STATIC mp_obj_t mp_builtin_repr(mp_obj_t o_in) {
      vstr_t vstr;
      mp_print_t print;
      vstr_init_print(&vstr, 16, &print);
      mp_obj_print_helper(&print, o_in, PRINT_REPR);
      return mp_obj_new_str_from_vstr(&mp_type_str, &vstr);
  }
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_repr_obj, mp_builtin_repr);
  
  STATIC mp_obj_t mp_builtin_round(size_t n_args, const mp_obj_t *args) {
      mp_obj_t o_in = args[0];
      if (MP_OBJ_IS_INT(o_in)) {
          return o_in;
      }
  #if MICROPY_PY_BUILTINS_FLOAT
      mp_float_t val = mp_obj_get_float(o_in);
      if (n_args > 1) {
          mp_int_t num_dig = mp_obj_get_int(args[1]);
          mp_float_t mult = MICROPY_FLOAT_C_FUN(pow)(10, num_dig);
          // TODO may lead to overflow
          mp_float_t rounded = MICROPY_FLOAT_C_FUN(nearbyint)(val * mult) / mult;
          return mp_obj_new_float(rounded);
      }
      mp_float_t rounded = MICROPY_FLOAT_C_FUN(nearbyint)(val);
      return mp_obj_new_int_from_float(rounded);
  #else
      mp_int_t r = mp_obj_get_int(o_in);
      return mp_obj_new_int(r);
  #endif
  }
  MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_round_obj, 1, 2, mp_builtin_round);
  
  STATIC mp_obj_t mp_builtin_sum(size_t n_args, const mp_obj_t *args) {
      mp_obj_t value;
      switch (n_args) {
          case 1: value = MP_OBJ_NEW_SMALL_INT(0); break;
          default: value = args[1]; break;
      }
      mp_obj_iter_buf_t iter_buf;
      mp_obj_t iterable = mp_getiter(args[0], &iter_buf);
      mp_obj_t item;
      while ((item = mp_iternext(iterable)) != MP_OBJ_STOP_ITERATION) {
          value = mp_binary_op(MP_BINARY_OP_ADD, value, item);
      }
      return value;
  }
  MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_sum_obj, 1, 2, mp_builtin_sum);
  
  STATIC mp_obj_t mp_builtin_sorted(size_t n_args, const mp_obj_t *args, mp_map_t *kwargs) {
      if (n_args > 1) {
          mp_raise_TypeError("must use keyword argument for key function");
      }
      mp_obj_t self = mp_type_list.make_new(&mp_type_list, 1, 0, args);
      mp_obj_list_sort(1, &self, kwargs);
  
      return self;
  }
  MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_sorted_obj, 1, mp_builtin_sorted);
  
  // See mp_load_attr() if making any changes
  static inline mp_obj_t mp_load_attr_default(mp_obj_t base, qstr attr, mp_obj_t defval) {
      mp_obj_t dest[2];
      // use load_method, raising or not raising exception
      ((defval == MP_OBJ_NULL) ? mp_load_method : mp_load_method_maybe)(base, attr, dest);
      if (dest[0] == MP_OBJ_NULL) {
          return defval;
      } else if (dest[1] == MP_OBJ_NULL) {
          // load_method returned just a normal attribute
          return dest[0];
      } else {
          // load_method returned a method, so build a bound method object
          return mp_obj_new_bound_meth(dest[0], dest[1]);
      }
  }
  
  STATIC mp_obj_t mp_builtin_getattr(size_t n_args, const mp_obj_t *args) {
      mp_obj_t defval = MP_OBJ_NULL;
      if (n_args > 2) {
          defval = args[2];
      }
      return mp_load_attr_default(args[0], mp_obj_str_get_qstr(args[1]), defval);
  }
  MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_getattr_obj, 2, 3, mp_builtin_getattr);
  
  STATIC mp_obj_t mp_builtin_setattr(mp_obj_t base, mp_obj_t attr, mp_obj_t value) {
      mp_store_attr(base, mp_obj_str_get_qstr(attr), value);
      return mp_const_none;
  }
  MP_DEFINE_CONST_FUN_OBJ_3(mp_builtin_setattr_obj, mp_builtin_setattr);
  
  #if MICROPY_CPYTHON_COMPAT
  STATIC mp_obj_t mp_builtin_delattr(mp_obj_t base, mp_obj_t attr) {
      return mp_builtin_setattr(base, attr, MP_OBJ_NULL);
  }
  MP_DEFINE_CONST_FUN_OBJ_2(mp_builtin_delattr_obj, mp_builtin_delattr);
  #endif
  
  STATIC mp_obj_t mp_builtin_hasattr(mp_obj_t object_in, mp_obj_t attr_in) {
      qstr attr = mp_obj_str_get_qstr(attr_in);
      mp_obj_t dest[2];
      mp_load_method_protected(object_in, attr, dest, false);
      return mp_obj_new_bool(dest[0] != MP_OBJ_NULL);
  }
  MP_DEFINE_CONST_FUN_OBJ_2(mp_builtin_hasattr_obj, mp_builtin_hasattr);
  
  STATIC mp_obj_t mp_builtin_globals(void) {
      return MP_OBJ_FROM_PTR(mp_globals_get());
  }
  MP_DEFINE_CONST_FUN_OBJ_0(mp_builtin_globals_obj, mp_builtin_globals);
  
  STATIC mp_obj_t mp_builtin_locals(void) {
      return MP_OBJ_FROM_PTR(mp_locals_get());
  }
  MP_DEFINE_CONST_FUN_OBJ_0(mp_builtin_locals_obj, mp_builtin_locals);
  
  // These are defined in terms of MicroPython API functions right away
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_id_obj, mp_obj_id);
  MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_len_obj, mp_obj_len);
  
  STATIC const mp_rom_map_elem_t mp_module_builtins_globals_table[] = {
      { MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_builtins) },
  
      // built-in core functions
      { MP_ROM_QSTR(MP_QSTR___build_class__), MP_ROM_PTR(&mp_builtin___build_class___obj) },
      { MP_ROM_QSTR(MP_QSTR___import__), MP_ROM_PTR(&mp_builtin___import___obj) },
      { MP_ROM_QSTR(MP_QSTR___repl_print__), MP_ROM_PTR(&mp_builtin___repl_print___obj) },
  
      // built-in types
      { MP_ROM_QSTR(MP_QSTR_bool), MP_ROM_PTR(&mp_type_bool) },
      { MP_ROM_QSTR(MP_QSTR_bytes), MP_ROM_PTR(&mp_type_bytes) },
      #if MICROPY_PY_BUILTINS_BYTEARRAY
      { MP_ROM_QSTR(MP_QSTR_bytearray), MP_ROM_PTR(&mp_type_bytearray) },
      #endif
      #if MICROPY_PY_BUILTINS_COMPLEX
      { MP_ROM_QSTR(MP_QSTR_complex), MP_ROM_PTR(&mp_type_complex) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_dict), MP_ROM_PTR(&mp_type_dict) },
      #if MICROPY_PY_BUILTINS_ENUMERATE
      { MP_ROM_QSTR(MP_QSTR_enumerate), MP_ROM_PTR(&mp_type_enumerate) },
      #endif
      #if MICROPY_PY_BUILTINS_FILTER
      { MP_ROM_QSTR(MP_QSTR_filter), MP_ROM_PTR(&mp_type_filter) },
      #endif
      #if MICROPY_PY_BUILTINS_FLOAT
      { MP_ROM_QSTR(MP_QSTR_float), MP_ROM_PTR(&mp_type_float) },
      #endif
      #if MICROPY_PY_BUILTINS_SET && MICROPY_PY_BUILTINS_FROZENSET
      { MP_ROM_QSTR(MP_QSTR_frozenset), MP_ROM_PTR(&mp_type_frozenset) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_int), MP_ROM_PTR(&mp_type_int) },
      { MP_ROM_QSTR(MP_QSTR_list), MP_ROM_PTR(&mp_type_list) },
      { MP_ROM_QSTR(MP_QSTR_map), MP_ROM_PTR(&mp_type_map) },
      #if MICROPY_PY_BUILTINS_MEMORYVIEW
      { MP_ROM_QSTR(MP_QSTR_memoryview), MP_ROM_PTR(&mp_type_memoryview) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_object), MP_ROM_PTR(&mp_type_object) },
      #if MICROPY_PY_BUILTINS_PROPERTY
      { MP_ROM_QSTR(MP_QSTR_property), MP_ROM_PTR(&mp_type_property) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_range), MP_ROM_PTR(&mp_type_range) },
      #if MICROPY_PY_BUILTINS_REVERSED
      { MP_ROM_QSTR(MP_QSTR_reversed), MP_ROM_PTR(&mp_type_reversed) },
      #endif
      #if MICROPY_PY_BUILTINS_SET
      { MP_ROM_QSTR(MP_QSTR_set), MP_ROM_PTR(&mp_type_set) },
      #endif
      #if MICROPY_PY_BUILTINS_SLICE
      { MP_ROM_QSTR(MP_QSTR_slice), MP_ROM_PTR(&mp_type_slice) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_str), MP_ROM_PTR(&mp_type_str) },
      { MP_ROM_QSTR(MP_QSTR_super), MP_ROM_PTR(&mp_type_super) },
      { MP_ROM_QSTR(MP_QSTR_tuple), MP_ROM_PTR(&mp_type_tuple) },
      { MP_ROM_QSTR(MP_QSTR_type), MP_ROM_PTR(&mp_type_type) },
      { MP_ROM_QSTR(MP_QSTR_zip), MP_ROM_PTR(&mp_type_zip) },
  
      { MP_ROM_QSTR(MP_QSTR_classmethod), MP_ROM_PTR(&mp_type_classmethod) },
      { MP_ROM_QSTR(MP_QSTR_staticmethod), MP_ROM_PTR(&mp_type_staticmethod) },
  
      // built-in objects
      { MP_ROM_QSTR(MP_QSTR_Ellipsis), MP_ROM_PTR(&mp_const_ellipsis_obj) },
      #if MICROPY_PY_BUILTINS_NOTIMPLEMENTED
      { MP_ROM_QSTR(MP_QSTR_NotImplemented), MP_ROM_PTR(&mp_const_notimplemented_obj) },
      #endif
  
      // built-in user functions
      { MP_ROM_QSTR(MP_QSTR_abs), MP_ROM_PTR(&mp_builtin_abs_obj) },
      { MP_ROM_QSTR(MP_QSTR_all), MP_ROM_PTR(&mp_builtin_all_obj) },
      { MP_ROM_QSTR(MP_QSTR_any), MP_ROM_PTR(&mp_builtin_any_obj) },
      { MP_ROM_QSTR(MP_QSTR_bin), MP_ROM_PTR(&mp_builtin_bin_obj) },
      { MP_ROM_QSTR(MP_QSTR_callable), MP_ROM_PTR(&mp_builtin_callable_obj) },
      #if MICROPY_PY_BUILTINS_COMPILE
      { MP_ROM_QSTR(MP_QSTR_compile), MP_ROM_PTR(&mp_builtin_compile_obj) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_chr), MP_ROM_PTR(&mp_builtin_chr_obj) },
      #if MICROPY_CPYTHON_COMPAT
      { MP_ROM_QSTR(MP_QSTR_delattr), MP_ROM_PTR(&mp_builtin_delattr_obj) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_dir), MP_ROM_PTR(&mp_builtin_dir_obj) },
      { MP_ROM_QSTR(MP_QSTR_divmod), MP_ROM_PTR(&mp_builtin_divmod_obj) },
      #if MICROPY_PY_BUILTINS_EVAL_EXEC
      { MP_ROM_QSTR(MP_QSTR_eval), MP_ROM_PTR(&mp_builtin_eval_obj) },
      { MP_ROM_QSTR(MP_QSTR_exec), MP_ROM_PTR(&mp_builtin_exec_obj) },
      #endif
      #if MICROPY_PY_BUILTINS_EXECFILE
      { MP_ROM_QSTR(MP_QSTR_execfile), MP_ROM_PTR(&mp_builtin_execfile_obj) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_getattr), MP_ROM_PTR(&mp_builtin_getattr_obj) },
      { MP_ROM_QSTR(MP_QSTR_setattr), MP_ROM_PTR(&mp_builtin_setattr_obj) },
      { MP_ROM_QSTR(MP_QSTR_globals), MP_ROM_PTR(&mp_builtin_globals_obj) },
      { MP_ROM_QSTR(MP_QSTR_hasattr), MP_ROM_PTR(&mp_builtin_hasattr_obj) },
      { MP_ROM_QSTR(MP_QSTR_hash), MP_ROM_PTR(&mp_builtin_hash_obj) },
      #if MICROPY_PY_BUILTINS_HELP
      { MP_ROM_QSTR(MP_QSTR_help), MP_ROM_PTR(&mp_builtin_help_obj) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_hex), MP_ROM_PTR(&mp_builtin_hex_obj) },
      { MP_ROM_QSTR(MP_QSTR_id), MP_ROM_PTR(&mp_builtin_id_obj) },
      #if MICROPY_PY_BUILTINS_INPUT
      { MP_ROM_QSTR(MP_QSTR_input), MP_ROM_PTR(&mp_builtin_input_obj) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_isinstance), MP_ROM_PTR(&mp_builtin_isinstance_obj) },
      { MP_ROM_QSTR(MP_QSTR_issubclass), MP_ROM_PTR(&mp_builtin_issubclass_obj) },
      { MP_ROM_QSTR(MP_QSTR_iter), MP_ROM_PTR(&mp_builtin_iter_obj) },
      { MP_ROM_QSTR(MP_QSTR_len), MP_ROM_PTR(&mp_builtin_len_obj) },
      { MP_ROM_QSTR(MP_QSTR_locals), MP_ROM_PTR(&mp_builtin_locals_obj) },
      #if MICROPY_PY_BUILTINS_MIN_MAX
      { MP_ROM_QSTR(MP_QSTR_max), MP_ROM_PTR(&mp_builtin_max_obj) },
      { MP_ROM_QSTR(MP_QSTR_min), MP_ROM_PTR(&mp_builtin_min_obj) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_next), MP_ROM_PTR(&mp_builtin_next_obj) },
      { MP_ROM_QSTR(MP_QSTR_oct), MP_ROM_PTR(&mp_builtin_oct_obj) },
      { MP_ROM_QSTR(MP_QSTR_ord), MP_ROM_PTR(&mp_builtin_ord_obj) },
      { MP_ROM_QSTR(MP_QSTR_pow), MP_ROM_PTR(&mp_builtin_pow_obj) },
      { MP_ROM_QSTR(MP_QSTR_print), MP_ROM_PTR(&mp_builtin_print_obj) },
      { MP_ROM_QSTR(MP_QSTR_repr), MP_ROM_PTR(&mp_builtin_repr_obj) },
      { MP_ROM_QSTR(MP_QSTR_round), MP_ROM_PTR(&mp_builtin_round_obj) },
      { MP_ROM_QSTR(MP_QSTR_sorted), MP_ROM_PTR(&mp_builtin_sorted_obj) },
      { MP_ROM_QSTR(MP_QSTR_sum), MP_ROM_PTR(&mp_builtin_sum_obj) },
  
      // built-in exceptions
      { MP_ROM_QSTR(MP_QSTR_BaseException), MP_ROM_PTR(&mp_type_BaseException) },
      { MP_ROM_QSTR(MP_QSTR_ArithmeticError), MP_ROM_PTR(&mp_type_ArithmeticError) },
      { MP_ROM_QSTR(MP_QSTR_AssertionError), MP_ROM_PTR(&mp_type_AssertionError) },
      { MP_ROM_QSTR(MP_QSTR_AttributeError), MP_ROM_PTR(&mp_type_AttributeError) },
      { MP_ROM_QSTR(MP_QSTR_EOFError), MP_ROM_PTR(&mp_type_EOFError) },
      { MP_ROM_QSTR(MP_QSTR_Exception), MP_ROM_PTR(&mp_type_Exception) },
      { MP_ROM_QSTR(MP_QSTR_GeneratorExit), MP_ROM_PTR(&mp_type_GeneratorExit) },
      { MP_ROM_QSTR(MP_QSTR_ImportError), MP_ROM_PTR(&mp_type_ImportError) },
      { MP_ROM_QSTR(MP_QSTR_IndentationError), MP_ROM_PTR(&mp_type_IndentationError) },
      { MP_ROM_QSTR(MP_QSTR_IndexError), MP_ROM_PTR(&mp_type_IndexError) },
      { MP_ROM_QSTR(MP_QSTR_KeyboardInterrupt), MP_ROM_PTR(&mp_type_KeyboardInterrupt) },
      { MP_ROM_QSTR(MP_QSTR_KeyError), MP_ROM_PTR(&mp_type_KeyError) },
      { MP_ROM_QSTR(MP_QSTR_LookupError), MP_ROM_PTR(&mp_type_LookupError) },
      { MP_ROM_QSTR(MP_QSTR_MemoryError), MP_ROM_PTR(&mp_type_MemoryError) },
      { MP_ROM_QSTR(MP_QSTR_NameError), MP_ROM_PTR(&mp_type_NameError) },
      { MP_ROM_QSTR(MP_QSTR_NotImplementedError), MP_ROM_PTR(&mp_type_NotImplementedError) },
      { MP_ROM_QSTR(MP_QSTR_OSError), MP_ROM_PTR(&mp_type_OSError) },
      { MP_ROM_QSTR(MP_QSTR_OverflowError), MP_ROM_PTR(&mp_type_OverflowError) },
      { MP_ROM_QSTR(MP_QSTR_RuntimeError), MP_ROM_PTR(&mp_type_RuntimeError) },
      #if MICROPY_PY_ASYNC_AWAIT
      { MP_ROM_QSTR(MP_QSTR_StopAsyncIteration), MP_ROM_PTR(&mp_type_StopAsyncIteration) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_StopIteration), MP_ROM_PTR(&mp_type_StopIteration) },
      { MP_ROM_QSTR(MP_QSTR_SyntaxError), MP_ROM_PTR(&mp_type_SyntaxError) },
      { MP_ROM_QSTR(MP_QSTR_SystemExit), MP_ROM_PTR(&mp_type_SystemExit) },
      { MP_ROM_QSTR(MP_QSTR_TypeError), MP_ROM_PTR(&mp_type_TypeError) },
      #if MICROPY_PY_BUILTINS_STR_UNICODE
      { MP_ROM_QSTR(MP_QSTR_UnicodeError), MP_ROM_PTR(&mp_type_UnicodeError) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_ValueError), MP_ROM_PTR(&mp_type_ValueError) },
      #if MICROPY_EMIT_NATIVE
      { MP_ROM_QSTR(MP_QSTR_ViperTypeError), MP_ROM_PTR(&mp_type_ViperTypeError) },
      #endif
      { MP_ROM_QSTR(MP_QSTR_ZeroDivisionError), MP_ROM_PTR(&mp_type_ZeroDivisionError) },
      // Somehow CPython managed to have OverflowError not inherit from ValueError ;-/
      // TODO: For MICROPY_CPYTHON_COMPAT==0 use ValueError to avoid exc proliferation
  
      // Extra builtins as defined by a port
      MICROPY_PORT_BUILTINS
  };
  
  MP_DEFINE_CONST_DICT(mp_module_builtins_globals, mp_module_builtins_globals_table);
  
  const mp_obj_module_t mp_module_builtins = {
      .base = { &mp_type_module },
      .globals = (mp_obj_dict_t*)&mp_module_builtins_globals,
  };