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[ty] Short circuit ReachabilityConstraints::analyze_single for dynamic types (#19867)

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Micha Reiser 2025-08-11 21:58:34 +02:00 • committed by GitHub
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13
crates/ty_python_semantic/resources/mdtest/function/return_type.md
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@ -505,3 +505,16 @@ class Abstract(Protocol):
class Concrete(Abstract):
def method(self) -> str: ... # error: [invalid-return-type]
```
## Diagnostics for `invalid-return-type` on dynamic type
```toml
environment.python-version = "3.12"
```
```py
from typing import Never, Any
def f(func: Any) -> Never: # error: [invalid-return-type]
func()
```