Macro rustc_middle::EnumTypeTraversalImpl

macro_rules! EnumTypeTraversalImpl {
    (impl<$($p:tt),*> TypeFoldable<$tcx:tt> for $s:path {
        $($variants:tt)*
    } $(where $($wc:tt)*)*) => { ... };
    (impl<$($p:tt),*> TypeVisitable<$tcx:tt> for $s:path {
        $($variants:tt)*
    } $(where $($wc:tt)*)*) => { ... };
    (@FoldVariants($this:expr, $folder:expr) input() output($($output:tt)*)) => { ... };
    (@FoldVariants($this:expr, $folder:expr)
     input( ($variant:path) ( $($variant_arg:ident),* ) , $($input:tt)*)
     output( $($output:tt)*) ) => { ... };
    (@FoldVariants($this:expr, $folder:expr)
     input( ($variant:path) { $($variant_arg:ident),* $(,)? } , $($input:tt)*)
     output( $($output:tt)*) ) => { ... };
    (@FoldVariants($this:expr, $folder:expr)
     input( ($variant:path), $($input:tt)*)
     output( $($output:tt)*) ) => { ... };
    (@VisitVariants($this:expr, $visitor:expr) input() output($($output:tt)*)) => { ... };
    (@VisitVariants($this:expr, $visitor:expr)
     input( ($variant:path) ( $($variant_arg:ident),* ) , $($input:tt)*)
     output( $($output:tt)*) ) => { ... };
    (@VisitVariants($this:expr, $visitor:expr)
     input( ($variant:path) { $($variant_arg:ident),* $(,)? } , $($input:tt)*)
     output( $($output:tt)*) ) => { ... };
    (@VisitVariants($this:expr, $visitor:expr)
     input( ($variant:path), $($input:tt)*)
     output( $($output:tt)*) ) => { ... };
}