diff options
| -rw-r--r-- | py/runtime.c | 18 | ||||
| -rw-r--r-- | tests/basics/tests/true-value.py | 27 |
2 files changed, 45 insertions, 0 deletions
diff --git a/py/runtime.c b/py/runtime.c index 0da3ced058..d6ef6f9be2 100644 --- a/py/runtime.c +++ b/py/runtime.c @@ -297,6 +297,24 @@ int rt_is_true(mp_obj_t arg) { return 0; } else if (arg == mp_const_true) { return 1; + } else if (MP_OBJ_IS_QSTR(arg)) { + // TODO: \0 + return *qstr_str(MP_OBJ_QSTR_VALUE(arg)) != 0; + } else if (MP_OBJ_IS_TYPE(arg, &str_type)) { + // TODO: \0 + return *qstr_str(mp_obj_str_get(arg)) != 0; + } else if (MP_OBJ_IS_TYPE(arg, &list_type)) { + uint len; + mp_obj_t *dummy; + mp_obj_list_get(arg, &len, &dummy); + return len != 0; + } else if (MP_OBJ_IS_TYPE(arg, &tuple_type)) { + uint len; + mp_obj_t *dummy; + mp_obj_tuple_get(arg, &len, &dummy); + return len != 0; + } else if (MP_OBJ_IS_TYPE(arg, &dict_type)) { + return mp_obj_dict_len(arg) != 0; } else { assert(0); return 0; diff --git a/tests/basics/tests/true-value.py b/tests/basics/tests/true-value.py new file mode 100644 index 0000000000..6ba410ddc2 --- /dev/null +++ b/tests/basics/tests/true-value.py @@ -0,0 +1,27 @@ +# Test true-ish value handling + +if not False: + print("False") + +if not 0: + print("0") + +if not "": + print("Empty string") +if "foo": + print("Non-empty string") + +if not (): + print("Empty tuple") +if ("",): + print("Non-empty tuple") + +if not []: + print("Empty list") +if [0]: + print("Non-empty list") + +if not {}: + print("Empty dict") +if {0:0}: + print("Non-empty dict") |