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objstr: Allow to convert any buffer proto object to str.

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Original motivation is to support converting bytearrays, but easier to just
support buffer protocol at all.
This commit is contained in:
Paul Sokolovsky
2014-10-30 23:58:08 +02:00
parent 31619cc589
commit e62a0fe367
3 changed files with 24 additions and 16 deletions
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19
py/objstr.c
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@@ -160,15 +160,18 @@ STATIC mp_obj_t str_make_new(mp_obj_t type_in, mp_uint_t n_args, mp_uint_t n_kw,
case 3:
{
// TODO: validate 2nd/3rd args
if (!MP_OBJ_IS_TYPE(args[0], &mp_type_bytes)) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, "bytes expected"));
if (MP_OBJ_IS_TYPE(args[0], &mp_type_bytes)) {
GET_STR_DATA_LEN(args[0], str_data, str_len);
GET_STR_HASH(args[0], str_hash);
mp_obj_str_t *o = mp_obj_new_str_of_type(&mp_type_str, NULL, str_len);
o->data = str_data;
o->hash = str_hash;
return o;
} else {
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(args[0], &bufinfo, MP_BUFFER_READ);
return mp_obj_new_str(bufinfo.buf, bufinfo.len, false);
}
GET_STR_DATA_LEN(args[0], str_data, str_len);
GET_STR_HASH(args[0], str_hash);
mp_obj_str_t *o = mp_obj_new_str_of_type(&mp_type_str, NULL, str_len);
o->data = str_data;
o->hash = str_hash;
return o;
}
default: