c2f7c39987
Minor cleanup and consistent formatting of the Markdown-based tests. - Removed lots of unnecessary `a`, `b`, `c`, … variables. - Moved test assertions (`# revealed:` comments) closer to the tested object. - Always separate `# revealed` and `# error` comments from the code by two spaces, according to the discussion [here](https://github.com/astral-sh/ruff/pull/13746/files#r1799385758). This trades readability for consistency in some cases. - Fixed some headings
1.8 KiB
1.8 KiB
Class subscript
Class getitem unbound
class NotSubscriptable: pass
a = NotSubscriptable[0] # error: "Cannot subscript object of type `Literal[NotSubscriptable]` with no `__class_getitem__` method"
Class getitem
class Identity:
def __class_getitem__(cls, item: int) -> str:
return item
reveal_type(Identity[0]) # revealed: str
Class getitem union
flag = True
class Identity:
if flag:
def __class_getitem__(cls, item: int) -> str:
return item
else:
def __class_getitem__(cls, item: int) -> int:
return item
reveal_type(Identity[0]) # revealed: str | int
Class getitem with class union
flag = True
class Identity1:
def __class_getitem__(cls, item: int) -> str:
return item
class Identity2:
def __class_getitem__(cls, item: int) -> int:
return item
if flag:
a = Identity1
else:
a = Identity2
reveal_type(a) # revealed: Literal[Identity1, Identity2]
reveal_type(a[0]) # revealed: str | int
Class getitem with unbound method union
flag = True
if flag:
class Identity:
def __class_getitem__(self, x: int) -> str:
pass
else:
class Identity: pass
a = Identity[42] # error: [call-non-callable] "Method `__class_getitem__` of type `Literal[__class_getitem__] | Unbound` is not callable on object of type `Literal[Identity, Identity]`"
reveal_type(a) # revealed: str | Unknown
TODO: Class getitem non-class union
flag = True
if flag:
class Identity:
def __class_getitem__(self, x: int) -> str:
pass
else:
Identity = 1
a = Identity[42] # error: "Cannot subscript object of type `Literal[Identity] | Literal[1]` with no `__getitem__` method"
# TODO: should _probably_ emit `str | Unknown`
reveal_type(a) # revealed: Unknown