[−][src]Macro impl_twice::impl_twice
macro_rules! impl_twice { () => { ... }; (impl $(<$($gen_args:tt),*>)? $name1:ident$(<$($name1_param:tt),*>)?, $name2:ident$(<$($name2_param:tt),*>)? $(where ($($where_args:tt)*))? { $($content:item)* }$($extra:tt)*) => { ... }; (impl $(<$($gen_args:tt),*>)? $name1:ident$(<$($name1_param:tt),*>)? $(where ($($where_args:tt)*))? impl $(<$($gen_args2:tt),*>)? $name2:ident$(<$($name2_param:tt),*>)? $(where ($($where_args2:tt)*))? { $($content:item)* }$($extra:tt)*) => { ... }; (impl $(<$($gen_args:tt),*>)? $trait:ident$(<$($trait_param:tt),*>)? for $name1:ident$(<$($name1_param:tt),*>)?, $name2:ident$(<$($name2_param:tt),*>)? $(where ($($where_args:tt)*))? { $($content:item)* }$($extra:tt)*) => { ... }; (impl $(<$($gen_args:tt),*>)? $trait:ident$(<$($trait_param:tt),*>)? for $name1:ident$(<$($name1_param:tt),*>)? $(where ($($where_args:tt)*))? impl $(<$($gen_args2:tt),*>)? $trait2:ident$(<$($trait_param2:tt),*>)? for $name2:ident$(<$($name2_param:tt),*>)? $(where ($($where_args2:tt)*))? { $($content:item)* }$($extra:tt)*) => { ... }; }
A macro for avoiding code duplication for immutable and mutable types. Check out the crate level documentation for more information