d77480768d
## Summary Porting infer tests to new markdown tests framework. Link to the corresponding issue: #13696 --------- Co-authored-by: Carl Meyer <carl@astral.sh>
2.8 KiB
2.8 KiB
Expressions
OR
def foo() -> str:
pass
a = True or False
b = 'x' or 'y' or 'z'
c = '' or 'y' or 'z'
d = False or 'z'
e = False or True
f = False or False
g = foo() or False
h = foo() or True
reveal_type(a) # revealed: Literal[True]
reveal_type(b) # revealed: Literal["x"]
reveal_type(c) # revealed: Literal["y"]
reveal_type(d) # revealed: Literal["z"]
reveal_type(e) # revealed: Literal[True]
reveal_type(f) # revealed: Literal[False]
reveal_type(g) # revealed: str | Literal[False]
reveal_type(h) # revealed: str | Literal[True]
AND
def foo() -> str:
pass
a = True and False
b = False and True
c = foo() and False
d = foo() and True
e = 'x' and 'y' and 'z'
f = 'x' and 'y' and ''
g = '' and 'y'
reveal_type(a) # revealed: Literal[False]
reveal_type(b) # revealed: Literal[False]
reveal_type(c) # revealed: str | Literal[False]
reveal_type(d) # revealed: str | Literal[True]
reveal_type(e) # revealed: Literal["z"]
reveal_type(f) # revealed: Literal[""]
reveal_type(g) # revealed: Literal[""]
Simple function calls to bool
def returns_bool() -> bool:
return True
if returns_bool():
x = True
else:
x = False
reveal_type(x) # revealed: bool
Complex
def foo() -> str:
pass
a = "x" and "y" or "z"
b = "x" or "y" and "z"
c = "" and "y" or "z"
d = "" or "y" and "z"
e = "x" and "y" or ""
f = "x" or "y" and ""
reveal_type(a) # revealed: Literal["y"]
reveal_type(b) # revealed: Literal["x"]
reveal_type(c) # revealed: Literal["z"]
reveal_type(d) # revealed: Literal["z"]
reveal_type(e) # revealed: Literal["y"]
reveal_type(f) # revealed: Literal["x"]
bool() function
Evaluates to builtin
redefined_builtin_bool = bool
def my_bool(x)-> bool: pass
from a import redefined_builtin_bool, my_bool
a = redefined_builtin_bool(0)
b = my_bool(0)
reveal_type(a) # revealed: Literal[False]
reveal_type(b) # revealed: bool
Truthy values
a = bool(1)
b = bool((0,))
c = bool("NON EMPTY")
d = bool(True)
def foo(): pass
e = bool(foo)
reveal_type(a) # revealed: Literal[True]
reveal_type(b) # revealed: Literal[True]
reveal_type(c) # revealed: Literal[True]
reveal_type(d) # revealed: Literal[True]
reveal_type(e) # revealed: Literal[True]
Falsy values
a = bool(0)
b = bool(())
c = bool(None)
d = bool("")
e = bool(False)
f = bool()
reveal_type(a) # revealed: Literal[False]
reveal_type(b) # revealed: Literal[False]
reveal_type(c) # revealed: Literal[False]
reveal_type(d) # revealed: Literal[False]
reveal_type(e) # revealed: Literal[False]
reveal_type(f) # revealed: Literal[False]
Ambiguous values
a = bool([])
b = bool({})
c = bool(set())
reveal_type(a) # revealed: bool
reveal_type(b) # revealed: bool
reveal_type(c) # revealed: bool