| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051 |
- """Detect problems with invalid operands used on invalid objects."""
- # pylint: disable=missing-docstring,too-few-public-methods,invalid-name
- # pylint: disable=unused-variable
-
- import collections
-
-
- class Implemented(object):
- def __invert__(self):
- return 42
- def __pos__(self):
- return 42
- def __neg__(self):
- return 42
-
-
- def these_are_good():
- negative = -1
- negative1 = -1.0
- positive = +1
- positive2 = +1.0
- inverted = ~1
- not_int = not 1
- not_float = not 2.0
- not_string = not ""
- not_list = not []
- not_dict = not {}
- not_tuple = not (1, 2)
- inverted_instance = ~Implemented()
- positive_instance = +Implemented()
- negative_instance = -Implemented()
- not_instance = not Implemented()
-
-
- def these_are_bad():
- invert_list = ~[] # [invalid-unary-operand-type]
- invert_tuple = ~() # [invalid-unary-operand-type]
- invert_dict = ~dict() # [invalid-unary-operand-type]
- invert_dict_1 = ~{} # [invalid-unary-operand-type]
- invert_set = ~set() # [invalid-unary-operand-type]
- neg_set = -set() # [invalid-unary-operand-type]
- neg_str = -"" # [invalid-unary-operand-type]
- invert_str = ~"" # [invalid-unary-operand-type]
- pos_str = +"" # [invalid-unary-operand-type]
- class A(object):
- pass
- invert_func = ~(lambda: None) # [invalid-unary-operand-type]
- invert_class = ~A # [invalid-unary-operand-type]
- invert_instance = ~A() # [invalid-unary-operand-type]
- invert_module = ~collections # [invalid-unary-operand-type]
- invert_float = ~2.0 # [invalid-unary-operand-type]
|
