Enum ExecutionResult 

pub enum ExecutionResult {
    Return(PyObjectRef),
    Yield(PyObjectRef),
    TailCall,
    GenResume,
}

Variants

Return(PyObjectRef)

Yield(PyObjectRef)

TailCall

The bytecode loop wants to tail-call into a new frame that has already been prepared on the datastack. The trampoline reads the pending frame pointer from vm.pending_tailcall_frame.

GenResume

The bytecode loop wants a generator or coroutine resumed in this same eval loop rather than through a nested Coro::send. The trampoline reads which one, the value to send it, and the continuation below from vm.pending_gen_resume.