Macro python_ast::tk_named

macro_rules! tk_named {
    (#$($args:tt)*) => { ... };
    ($name:ident( $i:ty ) -> $o:ty, $submac:ident!( $($args:tt)* )) => { ... };
    ($name:ident<$i:ty,$o:ty,$e:ty>, $submac:ident!( $($args:tt)* )) => { ... };
    ($name:ident<$i:ty,$o:ty>, $submac:ident!( $($args:tt)* )) => { ... };
    ($name:ident<$o:ty>, $submac:ident!( $($args:tt)* )) => { ... };
    ($name:ident, $submac:ident!( $($args:tt)* )) => { ... };
    (pub $name:ident( $i:ty ) -> $o:ty, $submac:ident!( $($args:tt)* )) => { ... };
    (pub $name:ident<$i:ty,$o:ty,$e:ty>, $submac:ident!( $($args:tt)* )) => { ... };
    (pub $name:ident<$i:ty,$o:ty>, $submac:ident!( $($args:tt)* )) => { ... };
    (pub $name:ident<$o:ty>, $submac:ident!( $($args:tt)* )) => { ... };
    (pub $name:ident, $submac:ident!( $($args:tt)* )) => { ... };
}

Makes a function from a parser combination

The type can be set up if the compiler needs more information

named!(my_function( TkSlice<'a> ) -> TkSlice<'a>, tag!("abcd"));
// first type parameter is input, second is output
named!(my_function<TkSlice<'a>, TkSlice<'a>>,     tag!("abcd"));
// will have TkSlice<'a> as input type, TkSlice<'a> as output type
named!(my_function,                   tag!("abcd"));
// will use TkSlice<'a> as input type (use this if the compiler
// complains about lifetime issues
named!(my_function<TkSlice<'a>>,            tag!("abcd"));
//prefix them with 'pub' to make the functions public
named!(pub my_function,               tag!("abcd"));