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trezor-firmware/rust/pareen/src/anim_box.rs
2024-06-03 14:26:25 +02:00

52 lines
1.1 KiB
Rust

use core::ops::{Deref, Sub};
extern crate alloc;
use alloc::boxed::Box;
use crate::{Anim, Fun};
pub type AnimBox<T, V> = Anim<Box<dyn Fun<T = T, V = V>>>;
impl<F> Anim<F>
where
F: Fun + 'static,
{
/// Returns a boxed version of this animation.
///
/// This may be used to reduce the compilation time of deeply nested
/// animations.
pub fn into_box(self) -> AnimBox<F::T, F::V> {
Anim(Box::new(self.0))
}
pub fn into_box_fn(self) -> Box<dyn Fn(F::T) -> F::V> {
Box::new(self.into_fn())
}
}
// TODO: We need to get rid of the 'static requirements.
impl<F> Anim<F>
where
F: Fun + 'static,
F::T: Copy + PartialOrd + Sub<Output = F::T> + 'static,
F::V: 'static,
{
pub fn seq_box<G, A>(self, self_end: F::T, next: A) -> AnimBox<F::T, F::V>
where
G: Fun<T = F::T, V = F::V> + 'static,
A: Into<Anim<G>>,
{
self.into_box()
.seq(self_end, next.into().into_box())
.into_box()
}
}
impl<'a, T, V> Fun for Box<dyn Fun<T = T, V = V>> {
type T = T;
type V = V;
fn eval(&self, t: Self::T) -> Self::V {
self.deref().eval(t)
}
}