diff options
Diffstat (limited to 'py/obj.c')
| -rw-r--r-- | py/obj.c | 62 |
1 files changed, 7 insertions, 55 deletions
@@ -147,61 +147,6 @@ bool mp_obj_is_callable(mp_obj_t o_in) { return mp_obj_instance_is_callable(o_in); } -mp_int_t mp_obj_hash(mp_obj_t o_in) { - if (o_in == mp_const_false) { - return 0; // needs to hash to same as the integer 0, since False==0 - } else if (o_in == mp_const_true) { - return 1; // needs to hash to same as the integer 1, since True==1 - } else if (MP_OBJ_IS_SMALL_INT(o_in)) { - return MP_OBJ_SMALL_INT_VALUE(o_in); - } else if (MP_OBJ_IS_TYPE(o_in, &mp_type_int)) { - return mp_obj_int_hash(o_in); - } else if (MP_OBJ_IS_STR(o_in) || MP_OBJ_IS_TYPE(o_in, &mp_type_bytes)) { - return mp_obj_str_get_hash(o_in); - } else if (MP_OBJ_IS_TYPE(o_in, &mp_type_NoneType)) { - return (mp_int_t)o_in; - } else if (MP_OBJ_IS_FUN(o_in)) { - return (mp_int_t)o_in; - } else if (MP_OBJ_IS_TYPE(o_in, &mp_type_tuple)) { - return mp_obj_tuple_hash(o_in); - } else if (MP_OBJ_IS_TYPE(o_in, &mp_type_type)) { - return (mp_int_t)o_in; - } else if (mp_obj_is_instance_type(mp_obj_get_type(o_in))) { - // if a valid __hash__ method exists, use it - mp_obj_t method[2]; - mp_load_method_maybe(o_in, MP_QSTR___hash__, method); - if (method[0] != MP_OBJ_NULL) { - mp_obj_t hash_val = mp_call_method_n_kw(0, 0, method); - if (MP_OBJ_IS_INT(hash_val)) { - return mp_obj_int_get_truncated(hash_val); - } - goto error; - } - - mp_load_method_maybe(o_in, MP_QSTR___eq__, method); - if (method[0] == MP_OBJ_NULL) { - // https://docs.python.org/3/reference/datamodel.html#object.__hash__ - // "User-defined classes have __eq__() and __hash__() methods by default; - // with them, all objects compare unequal (except with themselves) and - // x.__hash__() returns an appropriate value such that x == y implies - // both that x is y and hash(x) == hash(y)." - return (mp_int_t)o_in; - } - // "A class that overrides __eq__() and does not define __hash__() will have its __hash__() implicitly set to None. - // When the __hash__() method of a class is None, instances of the class will raise an appropriate TypeError" - } - - // TODO hash classes - -error: - if (MICROPY_ERROR_REPORTING == MICROPY_ERROR_REPORTING_TERSE) { - nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, "unhashable type")); - } else { - nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, - "unhashable type: '%s'", mp_obj_get_type_str(o_in))); - } -} - // This function implements the '==' operator (and so the inverse of '!='). // // From the Python language reference: @@ -540,3 +485,10 @@ void mp_get_buffer_raise(mp_obj_t obj, mp_buffer_info_t *bufinfo, mp_uint_t flag nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, "object with buffer protocol required")); } } + +mp_obj_t mp_generic_unary_op(mp_uint_t op, mp_obj_t o_in) { + switch (op) { + case MP_UNARY_OP_HASH: return MP_OBJ_NEW_SMALL_INT((mp_uint_t)o_in); + default: return MP_OBJ_NULL; // op not supported + } +} |