Macro kernel::cmdline_struct

macro_rules! cmdline_struct {
    (
        $(#[$struct_attr: meta])*
        $vis:vis struct $struct_name: ident $(< $lt: lifetime >)? {
            $(
                $(#[$($field_attrs: tt)*])*
                $f_vis:vis $field_name: ident: $field_type: ty
            ),* $(,)?
        }
    ) => { ... };
    (
        @build_struct $vis:vis [$($name_ident: tt)*] { } => [$($attribs: tt)*] => [$($built: tt)*]
    ) => { ... };
    (
        @build_struct $vis:vis [$($name_ident: tt)*] {
            #[default = $default: expr]
            $($rest:tt)*
        } => [$($attribs: tt)*] => [$($built: tt)*]
    ) => { ... };
    (
        @build_struct $vis:vis [$($name_ident: tt)*] {
            #[$($field_attrs: tt)*]
            $($rest:tt)*
        } => [$($attribs: tt)*] => [$($built: tt)*]
    ) => { ... };
    (
        @build_struct $vis:vis [$($name_ident: tt)*] {
            $f_vis:vis $field_name: ident: $field_type: ty,
            $($rest:tt)*
        } => [$($attribs: tt)*]  => [$($built: tt)*]
    ) => { ... };
    (
        @build_parser [$($name_ident: tt)*] {
            $(
                $(#[$($field_attrs: tt)*])*
                $field_name: ident: $field_type: ty,
            )*
        }
    ) => { ... };
    (
        @build_parser_attr
        #[default = $expr: expr]
        $field_name: ident: $field_type: ty
    ) => { ... };
    (
        @build_parser_attr
        #[$($field_attrs: tt)*]
        $field_name: ident: $field_type: ty
    ) => { ... };
}