Macro gdnative_core::godot_wrap_method

macro_rules! godot_wrap_method {
    (
        $type_name:ty,
        fn $method_name:ident(
            &mut $self:ident,
            $owner:ident : $owner_ty:ty
            $(,$pname:ident : $pty:ty)*
            $(,#[opt] $opt_pname:ident : $opt_pty:ty)*
            $(,)?
        ) -> $retty:ty
    ) => { ... };
    (
        $type_name:ty,
        fn $method_name:ident(
            & $self:ident,
            $owner:ident : $owner_ty:ty
            $(,$pname:ident : $pty:ty)*
            $(,#[opt] $opt_pname:ident : $opt_pty:ty)*
            $(,)?
        ) -> $retty:ty
    ) => { ... };
    (
        $type_name:ty,
        fn $method_name:ident(
            &mut $self:ident,
            $owner:ident : $owner_ty:ty
            $(,$pname:ident : $pty:ty)*
            $(,#[opt] $opt_pname:ident : $opt_pty:ty)*
            $(,)?
        )
    ) => { ... };
    (
        $type_name:ty,
        fn $method_name:ident(
            & $self:ident,
            $owner:ident : $owner_ty:ty
            $(,$pname:ident : $pty:ty)*
            $(,#[opt] $opt_pname:ident : $opt_pty:ty)*
            $(,)?
        )
    ) => { ... };
}

Convenience macro to wrap an object's method into a function pointer that can be passed to the engine when registering a class.