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"""Check for nonlocal and used-before-assignment"""
# pylint: disable=missing-docstring, unused-variable, too-few-public-methods
def test_ok():
""" uses nonlocal """
cnt = 1
def wrap():
nonlocal cnt
cnt = cnt + 1
wrap()
def test_fail():
""" doesn't use nonlocal """
cnt = 1
def wrap():
cnt = cnt + 1 # [used-before-assignment]
wrap()
def test_fail2():
""" use nonlocal, but for other variable """
cnt = 1
count = 1
def wrap():
nonlocal count
cnt = cnt + 1 # [used-before-assignment]
wrap()
def test_fail3(arg: test_fail4): # [used-before-assignment]
""" Depends on `test_fail4`, in argument annotation. """
return arg
# +1: [used-before-assignment, used-before-assignment]
def test_fail4(*args: test_fail5, **kwargs: undefined):
""" Depends on `test_fail5` and `undefined` in
variable and named arguments annotations.
"""
return args, kwargs
def test_fail5()->undefined1: # [used-before-assignment]
""" Depends on `undefined1` in function return annotation. """
def undefined():
""" no op """
def undefined1():
""" no op """
def nonlocal_in_ifexp():
"""bar"""
bug2 = True
def on_click(event):
"""on_click"""
if event:
nonlocal bug2
bug2 = not bug2
on_click(True)
nonlocal_in_ifexp()
def type_annotation_only_gets_value_via_nonlocal():
"""https://github.com/pylint-dev/pylint/issues/5394"""
some_num: int
def inner():
nonlocal some_num
some_num = 5
inner()
print(some_num)
def type_annotation_only_gets_value_via_nonlocal_nested():
"""Similar, with nesting"""
some_num: int
def inner():
def inner2():
nonlocal some_num
some_num = 5
inner2()
inner()
print(some_num)
def type_annotation_never_gets_value_despite_nonlocal():
"""Type annotation lacks a value despite nonlocal declaration"""
some_num: int
def inner():
nonlocal some_num
inner()
print(some_num) # [used-before-assignment]
def inner_function_lacks_access_to_outer_args(args):
"""Check homonym between inner function and outer function names"""
def inner():
print(args) # [used-before-assignment]
args = []
inner()
print(args)
def inner_function_ok(args):
"""Explicitly redefined homonym defined before is OK."""
def inner():
args = []
print(args)
inner()
print(args)
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