Syntax for returning early with an error

[steffahn]

@steffahn

one can archieve yeet -compatibility for any type Foo<Bar, T> by implementing

impl<T> FromResidual<Yeeted<T>> for Foo<Bar, T> {...}

I like this. One could add another type, e.g. YeetedNothing for supporting an argument-less yeet; call. Something like Option would implement this. The implementations for Result and Option would be:

impl<T, E> FromResidual<Yeeted<E>> for Result<T, E> {...}
impl<T> FromResidual<YeetedNothing> for Option<T> {...}