Shunsuke Shibayama bb44926ca5 [red-knot] Add rule invalid-type-checking-constant (#16501) ...

## Summary

This PR adds more features to #16468.

* Adds a new error rule `invalid-type-checking-constant`, which occurs
when we try to assign a value other than `False` to a user-defined
`TYPE_CHECKING` variable (it is possible to assign `...` in a stub
file).
* Allows annotated assignment to `TYPE_CHECKING`. Only types that
`False` can be assigned to are allowed. However, the type of
`TYPE_CHECKING` will be inferred to be `Literal[True]` regardless of
what the type is specified.

## Test plan

I ran the tests with `cargo test -p red_knot_python_semantic` and
confirmed that all tests passed.

---------

Co-authored-by: Carl Meyer <carl@astral.sh>

2025-03-04 19:49:34 +00:00

..

module_resolver

Rename venv-path to python (#16347)

2025-02-24 19:41:06 +01:00

semantic_index

[red-knot] Don't use separate ID types for each alist (#16415)

2025-02-28 14:55:55 -05:00

types

[red-knot] Add rule invalid-type-checking-constant (#16501)

2025-03-04 19:49:34 +00:00

util

[red-knot] Improve ergonomics for the PySlice trait (#13983)

2024-10-29 20:40:59 +00:00

ast_node_ref.rs

Remove Hash and Eq from AstNodeRef for types not implementing Eq or Hash (#16100)

2025-02-11 19:55:50 +01:00

db.rs

Use ast::PythonVersion internally in the formatter and linter (#16170)

2025-02-18 12:03:13 -05:00

lib.rs

[red-knot] Don't use separate ID types for each alist (#16415)

2025-02-28 14:55:55 -05:00

lint.rs

Add knot.toml schema (#15735)

2025-02-07 10:59:40 +01:00

list.rs

[red-knot] Don't use separate ID types for each alist (#16415)

2025-02-28 14:55:55 -05:00

module_name.rs

Bind top-most parent when importing nested module (#14946)

2024-12-16 16:15:40 -05:00

node_key.rs

[red-knot] Use memory address as AST node key (#14317)

2024-11-13 14:35:54 +01:00

program.rs

Rename venv-path to python (#16347)

2025-02-24 19:41:06 +01:00

python_platform.rs

Add knot.toml schema (#15735)

2025-02-07 10:59:40 +01:00

semantic_index.rs

[red-knot] Rename constraint to predicate (#16382)

2025-02-25 14:52:40 -05:00

semantic_model.rs

[red-knot] Rename *_ty functions (#15617)

2025-01-22 09:06:56 +01:00

site_packages.rs

Rename venv-path to python (#16347)

2025-02-24 19:41:06 +01:00

suppression.rs

ruff_db: add "secondary" messages to Diagnostic trait

2025-02-19 08:24:19 -05:00

symbol.rs

[red-knot] Add rule invalid-type-checking-constant (#16501)

2025-03-04 19:49:34 +00:00

types.rs

[red-knot] Disallow more invalid type expressions (#16427)

2025-02-28 10:04:30 +00:00

unpack.rs

Update Salsa part 1 (#16340)

2025-02-24 09:35:21 +01:00