Macro enso_shapely::replace

macro_rules! replace {
    ($a:tt,$($b:tt)*) => { ... };
}

Replaces the first argument with the second one. It is useful when creating macros which match a pattern and you want to generate as many repetitions of a token as there was matches. For example, when matching $($name:ident)*, you may want to generate as many empty tuples as the number of names matched. You can do it by using $(replace!{$name,()})*.