Function r3::bind::fn_bind_map

pub const fn fn_bind_map<FnBind, Mapper>(
    inner: FnBind,
    mapper: Mapper
) -> FnBindMap<FnBind, Mapper>

Apply a function to an impl FnBind<_>’s output.

Example

#![feature(const_trait_impl)]
#![feature(const_mut_refs)]
use core::cell::UnsafeCell;
use r3_core::{kernel::{cfg, traits}, bind::{Bind, FnBind, fn_bind_map}};

/// Like `r3::bind::bind` but wraps the output in `UnsafeCell`
const fn unsafe_cell_bind<'pool, C, Binder, Func, T>(
    cfg: &mut cfg::Cfg<'pool, C>,
    binder: Binder,
    func: Func,
) -> Bind<'pool, C::System, UnsafeCell<T>>
where
    C: ~const traits::CfgBase,
    C::System: traits::KernelBase + traits::KernelStatic,
    Func: ~const FnBind<Binder, Output = T>,
    T: 'static,
{
    Bind::define()
        // Apply `UnsafeCell::new` on `func`'s output
        .init_with_bind(binder, fn_bind_map(func, UnsafeCell::new))
        .finish(cfg)
}