schematics/src/to_artifact.rs

use crate::resources::Resource;

pub trait ToArtifact {
  type Artifact;
}

macro_rules! to_artifact {
    ( $($name:ident)* ) => (
        #[allow(non_snake_case)]
        impl<$($name: Resource,)*> ToArtifact for ($($name,)*)
        {
          type Artifact = ($($name::Artifact,)*);
        }
    );
}

for_each_tuple!(to_artifact);

impl<T: Resource> ToArtifact for Option<T> {
  type Artifact = Option<T::Artifact>;
}

impl<T: Resource> ToArtifact for T {
  type Artifact = <Self as Resource>::Artifact;
}