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"""Tests for undefined variable with assignment expressions"""
# pylint: disable=using-constant-test, expression-not-assigned
# Tests for annotation of variables and potentially undefinition
def typing_and_assignment_expression():
"""The variable gets assigned in an assignment expression"""
var: int
if (var := 1 ** 2):
print(var)
def typing_and_self_referncing_assignment_expression():
"""The variable gets assigned in an assignment expression that references itself"""
var: int
if (var := var ** 2): # [undefined-variable]
print(var)
def typed_assignment_in_function_default(param: str = (typed_default := "walrus")) -> None:
"""An annotated assignment expression in a default parameter should not emit"""
return param
print(typed_default)
def assignment_in_function_default(param = (default := "walrus")) -> None:
"""An assignment expression in a default parameter should not emit"""
return param
print(default)
def no_assignment_in_function_default(param: str = "walrus") -> None:
"""No annotated assignment expression should emit"""
return param
print(no_default) # [undefined-variable]
def no_parameters_in_function_default() -> None:
"""Regression tests for functions without any parameters"""
return
print(again_no_default) # [undefined-variable]
# Tests for assignment expressions in if ... else comprehensions
[i for i in range(10) if (if_assign_1 := i)]
print(if_assign_1)
IF_TWO = [i for i in range(10) if (if_assign_2 := i)]
print(if_assign_2)
IF_THREE = next(i for i in range(10) if (if_assign_3 := i))
print(if_assign_3)
IF_FOUR = {i: i for i in range(10) if (if_assign_4 := i)}
print(if_assign_4)
IF_FIVE = {i: i if (if_assign_5 := i) else 0 for i in range(10)}
print(if_assign_5)
{i: i if True else (else_assign_1 := i) for i in range(10)}
print(else_assign_1) # [undefined-variable]
# Tests for assignment expressions in the assignment of comprehensions
[(assign_assign_1 := i) for i in range(10)]
print(assign_assign_1)
COMPREHENSION_TWO =[(assign_assign_2 := i) for i in range(10)]
print(assign_assign_2)
COMPREHENSION_THREE = next((assign_assign_3 := i) for i in range(10))
print(assign_assign_3)
COMPREHENSION_FOUR = {i: (assign_assign_4 := i) for i in range(10)}
print(assign_assign_4)
COMPREHENSION_FIVE = {i: (else_assign_2 := i) if False else 0 for i in range(10)}
print(else_assign_2) # [undefined-variable]
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