18 lines
380 B
Rust
18 lines
380 B
Rust
use core::marker::PhantomData;
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use crate::Node;
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pub struct FnNode<T: Fn(I) -> O, I, O>(T, PhantomData<(I, O)>);
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impl<'i, T: Fn(I) -> O + 'i, O: 'i, I: 'i> Node<'i, I> for FnNode<T, I, O> {
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type Output = O;
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fn eval(&'i self, input: I) -> Self::Output {
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self.0(input)
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}
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}
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impl<T: Fn(I) -> O, I, O> FnNode<T, I, O> {
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pub fn new(f: T) -> Self {
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FnNode(f, PhantomData)
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}
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}
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