38 lines
880 B
Rust
38 lines
880 B
Rust
//! Helper module which defines `FnArgs`
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//! to make function calling easier.
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use crate::any::Any;
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pub trait FunArgs<'a> {
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fn into_vec(self) -> Vec<&'a mut dyn Any>;
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}
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macro_rules! impl_args {
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($($p:ident),*) => {
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impl<'a, $($p),*> FunArgs<'a> for ($(&'a mut $p,)*)
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where
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$($p: Any + Clone),*
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{
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fn into_vec(self) -> Vec<&'a mut dyn Any> {
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let ($($p,)*) = self;
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#[allow(unused_variables, unused_mut)]
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let mut v = Vec::new();
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$(v.push($p as &mut dyn Any);)*
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v
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}
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}
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impl_args!(@pop $($p),*);
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};
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(@pop) => {
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};
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(@pop $head:ident $(, $tail:ident)*) => {
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impl_args!($($tail),*);
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};
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}
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#[cfg_attr(rustfmt, rustfmt_skip)]
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impl_args!(A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S);
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