Type Alias FnOpaque

pub type FnOpaque<Input, O, S = ()> = Opaque<fn(&mut dyn FnMut(&mut dyn Parser<Input, Output = O, PartialState = S>)), Input, O, S>;

Alias over Opaque where the function can be a plain function pointer (does not need to capture any values)

Aliased Type

struct FnOpaque<Input, O, S = ()>(/* private fields */);