Enum Generating 

pub enum Generating<'a, 'sink> {
    Unwatched,
    Watched(&'a mut (dyn FnMut(&Increment) + 'sink)),
    Speculating {
        deltas: Option<&'a mut (dyn FnMut(&Increment) + 'sink)>,
        tools: &'a dyn ConcurrentInvoke,
    },
}

Who acts on a model’s answer while it is still being generated. The one place that decides which door of the model port a turn takes.

Variants

Unwatched

Nobody: the blocking door.

Watched(&'a mut (dyn FnMut(&Increment) + 'sink))

A page reads the text as it arrives: the streaming door.

Speculating

The tool face also starts each read-only call the model hands over before its first writing call: the speculating door.

Fields

deltas: Option<&'a mut (dyn FnMut(&Increment) + 'sink)>

tools: &'a dyn ConcurrentInvoke