pub trait Ignorable<P>where
P: Part,{ }Expand description
Trait implemented by types that can be ignored in uri!.
When a parameter is explicitly ignored in uri! by supplying _ as the
parameter’s value, that parameter’s type is required to implement this
trait for the corresponding Part.
#[get("/item/<id>?<track>")]
fn get_item(id: i32, track: Option<u8>) { /* .. */ }
// Ignore the `track` parameter: `Option<u8>` must be `Ignorable`.
uri!(get_item(100, _));
uri!(get_item(id = 100, track = _));
// Provide a value for `track`.
uri!(get_item(100, Some(4)));
uri!(get_item(id = 100, track = Some(4)));Implementations
Only Option<T> and Result<T, E> implement this trait. You may implement
this trait for your own ignorable types as well:
use rocket::http::uri::fmt::{Ignorable, Query};
impl Ignorable<Query> for MyType { }