918358aaa6
As part of #13696, this PR ports a smallish number of inference tests over to the mdtest framework.
1.0 KiB
1.0 KiB
Unbound
Unbound class variable
Name lookups within a class scope fall back to globals, but lookups of class attributes don't.
def bool_instance() -> bool:
return True
flag = bool_instance()
x = 1
class C:
y = x
if flag:
x = 2
# error: [possibly-unbound-attribute] "Attribute `x` on type `Literal[C]` is possibly unbound"
reveal_type(C.x) # revealed: Literal[2]
reveal_type(C.y) # revealed: Literal[1]
Possibly unbound in class and global scope
def bool_instance() -> bool:
return True
if bool_instance():
x = "abc"
class C:
if bool_instance():
x = 1
# error: [possibly-unresolved-reference]
y = x
reveal_type(C.y) # revealed: Literal[1] | Literal["abc"]
Unbound function local
An unbound function local that has definitions in the scope does not fall back to globals.
x = 1
def f():
# error: [unresolved-reference]
# revealed: Unknown
reveal_type(x)
x = 2
# revealed: Literal[2]
reveal_type(x)