24707777af
## Summary Fixes https://github.com/astral-sh/ruff/issues/16532 ## Test Plan New mdtest assertions added --------- Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
2.2 KiB
2.2 KiB
Tests for invalid types in type expressions
Invalid types are rejected
Many types are illegal in the context of a type expression:
import typing
from knot_extensions import AlwaysTruthy, AlwaysFalsy
from typing_extensions import Literal, Never
def _(
a: type[int],
b: AlwaysTruthy,
c: AlwaysFalsy,
d: Literal[True],
e: Literal["bar"],
f: Literal[b"foo"],
g: tuple[int, str],
h: Never,
):
def foo(): ...
def invalid(
i: a, # error: [invalid-type-form] "Variable of type `type[int]` is not allowed in a type expression"
j: b, # error: [invalid-type-form]
k: c, # error: [invalid-type-form]
l: d, # error: [invalid-type-form]
m: e, # error: [invalid-type-form]
n: f, # error: [invalid-type-form]
o: g, # error: [invalid-type-form]
p: h, # error: [invalid-type-form]
q: typing, # error: [invalid-type-form]
r: foo, # error: [invalid-type-form]
):
reveal_type(i) # revealed: Unknown
reveal_type(j) # revealed: Unknown
reveal_type(k) # revealed: Unknown
reveal_type(l) # revealed: Unknown
reveal_type(m) # revealed: Unknown
reveal_type(n) # revealed: Unknown
reveal_type(o) # revealed: Unknown
reveal_type(p) # revealed: Unknown
reveal_type(q) # revealed: Unknown
reveal_type(r) # revealed: Unknown
Invalid AST nodes
def _(
a: 1, # error: [invalid-type-form] "Int literals are not allowed in this context in a type expression"
b: 2.3, # error: [invalid-type-form] "Float literals are not allowed in type expressions"
c: 4j, # error: [invalid-type-form] "Complex literals are not allowed in type expressions"
d: True, # error: [invalid-type-form] "Boolean literals are not allowed in this context in a type expression"
# error: [invalid-type-form] "Bytes literals are not allowed in this context in a type expression"
e: int | b"foo",
):
reveal_type(a) # revealed: Unknown
reveal_type(b) # revealed: Unknown
reveal_type(c) # revealed: Unknown
reveal_type(d) # revealed: Unknown
reveal_type(e) # revealed: int | Unknown