Hmm, instead of introducing more mako magic, why not using the general machinery we have to share types across multiple properties, something like:

rust
pub use values::generics::FillRule;

In both specified/basic_shape.rs and computed/basic_shape.rs.

Then changing these two to use prefefined_type("FillRule")?

Then these can just use impl_simple in gecko.mako.rs.

wdyt?

In D10142#247439, @emilio wrote:

Then changing these two to use prefefined_type("FillRule")?

Yes. This works. I can update this by predefined_type.