mirrors/ruff
1
0
Fork 0
mirror of https://github.com/astral-sh/ruff.git synced 2025-08-17 09:00:26 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 3

[ty] Add generic inference for dataclasses (#18443)

Browse source 
## Summary

An issue seen here https://github.com/astral-sh/ty/issues/500

The `__init__` method of dataclasses had no inherited generic context,
so we could not infer the type of an instance from a constructor call
with generics

## Test Plan

Add tests to classes.md` in generics folder
This commit is contained in:
Matthew Mckee 2025-06-03 17:59:43 +01:00 • committed by GitHub
parent 71d8a5da2a
commit e8ea40012a
No known key found for this signature in database
GPG key ID: B5690EEEBB952194
4 changed files with 30 additions and 4 deletions
Download patch file Download diff file Expand all files Collapse all files

3
crates/ty_python_semantic/src/types/class.rs
View file

@ -1372,7 +1372,8 @@ impl<'db> ClassLiteral<'db> {
parameters.push(parameter);
}
let signature = Signature::new(Parameters::new(parameters), Some(Type::none(db)));
let mut signature = Signature::new(Parameters::new(parameters), Some(Type::none(db)));
signature.inherited_generic_context = self.generic_context(db);
Some(CallableType::function_like(db, signature))
};