61 lines
2.2 KiB
C
61 lines
2.2 KiB
C
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/* This example demonstrates the following features in a native module:
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- using types
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- using constant objects
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- creating dictionaries
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*/
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// Include the header file to get access to the MicroPython API.
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#include "py/dynruntime.h"
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// A function that returns a tuple of object types.
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STATIC mp_obj_t get_types(void) {
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return mp_obj_new_tuple(9, ((mp_obj_t []) {
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MP_OBJ_FROM_PTR(&mp_type_type),
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MP_OBJ_FROM_PTR(&mp_type_NoneType),
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MP_OBJ_FROM_PTR(&mp_type_bool),
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MP_OBJ_FROM_PTR(&mp_type_int),
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MP_OBJ_FROM_PTR(&mp_type_str),
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MP_OBJ_FROM_PTR(&mp_type_bytes),
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MP_OBJ_FROM_PTR(&mp_type_tuple),
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MP_OBJ_FROM_PTR(&mp_type_list),
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MP_OBJ_FROM_PTR(&mp_type_dict),
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}));
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(get_types_obj, get_types);
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// A function that returns a tuple of constant objects.
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STATIC mp_obj_t get_const_objects(void) {
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return mp_obj_new_tuple(5, ((mp_obj_t []) {
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mp_const_none,
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mp_const_false,
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mp_const_true,
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mp_const_empty_bytes,
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mp_const_empty_tuple,
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}));
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_0(get_const_objects_obj, get_const_objects);
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// A function that creates a dictionary from the given arguments.
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STATIC mp_obj_t make_dict(size_t n_args, const mp_obj_t *args) {
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mp_obj_t dict = mp_obj_new_dict(n_args / 2);
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for (; n_args >= 2; n_args -= 2, args += 2) {
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mp_obj_dict_store(dict, args[0], args[1]);
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}
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return dict;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(make_dict_obj, 0, MP_OBJ_FUN_ARGS_MAX, make_dict);
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// This is the entry point and is called when the module is imported.
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mp_obj_t mpy_init(mp_obj_fun_bc_t *self, size_t n_args, size_t n_kw, mp_obj_t *args) {
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// This must be first, it sets up the globals dict and other things.
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MP_DYNRUNTIME_INIT_ENTRY
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// Make the functions available in the module's namespace.
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mp_store_global(MP_QSTR_make_dict, MP_OBJ_FROM_PTR(&make_dict_obj));
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mp_store_global(MP_QSTR_get_types, MP_OBJ_FROM_PTR(&get_types_obj));
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mp_store_global(MP_QSTR_get_const_objects, MP_OBJ_FROM_PTR(&get_const_objects_obj));
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// This must be last, it restores the globals dict.
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MP_DYNRUNTIME_INIT_EXIT
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}
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