Internal compiler error when trying to spawn a native function as a task

[robarnold]

I see 'internal compiler error ret_ty_of_fn_ty() called on non-function type' when trying to compile:

native "rust" mod rustrt {
fn uvtask();
}
fn iotask() {
let task iothread = spawn rustrt::uvtask();
}

[eholk]

Does this repro when you wrap rustrt::uvtask in a rust function?

[robarnold]

No, that was my workaround.

[eholk]

I asked pcwalton about this in IRC. He said we just need to make the alt inside ret_ty_of_fn_ty handle ty_native_fn too. It should be a pretty simple fix.

[eholk]

Rob, when you get the chance, can you see if this patch fixes the problem for you?

https://gist.github.com/1029944

[robarnold]

Sorry for the delay here. It seems like it should fix the issue but it doesn't. Here is my reduced test case: https://gist.github.com/1034937

[eholk]

Thanks for reducing this test case! I'll see if I can get this bug fixed today.