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[red-knot] use declared types in inference/checking (#13335)

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Use declared types in inference and checking. This means several things:

* Imports prefer declarations over inference, when declarations are
available.
* When we encounter a binding, we check that the bound value's inferred
type is assignable to the live declarations of the bound symbol, if any.
* When we encounter a declaration, we check that the declared type is
assignable from the inferred type of the symbol from previous bindings,
if any.
* When we encounter a binding+declaration, we check that the inferred
type of the bound value is assignable to the declared type.
This commit is contained in:
Carl Meyer 2024-09-17 08:11:06 -07:00 • committed by GitHub
parent d86e5ad031
commit dcfebaa4a8
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13 changed files with 876 additions and 233 deletions
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crates/ruff_db/src/lib.rs
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@ -6,6 +6,7 @@ use crate::files::Files;
use crate::system::System;
use crate::vendored::VendoredFileSystem;
pub mod display;
pub mod file_revision;
pub mod files;
pub mod parsed;