Not sure if this was discussed already so apologies ahead if so. Considering an scenario where a

GenerateSourcesRequest

like:

class GenerateMySourcesRequest(GenerateSourcesRequest):
    input = MySourceField
    output = MyGeneratedSourceField

Should

has_field(MyGeneratedSourceField)

return

True

when invoked in the target objects that have

MySourceField

as part of their core fields? Not really interesting on addressing the field of the generated sources, just trying to figure out a way of detecting targets that may generate code for a specific source field type.

That's what

SourcesField.can_generate()

is for: https://github.com/pantsbuild/pants/blob/2a13bc880b8827c7f13deedf36beb712f84a6957/src/python/pants/engine/target.py#L2036

just a bit of scrolling and I would have found the answer myself 🤦‍♂️