language-servers/ruff
1
0
Fork 0
mirror of https://github.com/astral-sh/ruff.git synced 2025-09-28 12:55:05 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 2
ruff/crates/red_knot_python_semantic/resources/mdtest/literal/bytes.md
David Peter 77ae0ccf0f
[red-knot] Infer subscript expression types for bytes literals (#13901) 
## Summary

Infer subscript expression types for bytes literals:
```py
b = b"\x00abc\xff"

reveal_type(b[0])  # revealed: Literal[b"\x00"]
reveal_type(b[1])  # revealed: Literal[b"a"]
reveal_type(b[-1])  # revealed: Literal[b"\xff"]
reveal_type(b[-2])  # revealed: Literal[b"c"]

reveal_type(b[False])  # revealed: Literal[b"\x00"]
reveal_type(b[True])  # revealed: Literal[b"a"]
```


part of #13689
(https://github.com/astral-sh/ruff/issues/13689#issuecomment-2404285064)

## Test Plan

- New Markdown-based tests (see `mdtest/subscript/bytes.md`)
- Added missing test for `string_literal[bool_literal]`
2024-10-24 12:07:41 +02:00

273 B
Raw Blame History

Bytes literals

Simple

reveal_type(b"red" b"knot")  # revealed: Literal[b"redknot"]
reveal_type(b"hello")  # revealed: Literal[b"hello"]
reveal_type(b"world" + b"!")  # revealed: Literal[b"world!"]
reveal_type(b"\xff\x00")  # revealed: Literal[b"\xff\x00"]