[−][src]Trait frunk_core::traits::Func
This is a simple, user-implementable alternative to Fn
.
Might not be necessary if/when Fn(Once, Mut) traits are implementable in stable Rust
Associated Types
type Output
Required methods
fn call(i: Input) -> Self::Output
Call the Func
.
Notice that this does not take a self argument, which in turn means Func
cannot effectively close over a context. This decision trades power for convenience;
a three-trait Fn
heirarchy like that in std provides a great deal of power in a
small fraction of use-cases, but it also comes at great expanse to the other 95% of
use cases.