Trait FromRef

pub trait FromRef<T> {
    // Required method
    fn from_ref(input: &T) -> Self;
}

Used to do reference-to-value conversions thus not consuming the input value.

This is mainly used with State to extract “substates” from a reference to main application state.

See State for more details on how library authors should use this trait.

This trait can be derived using #[derive(FromRef)].

Required Methods

fn from_ref(input: &T) -> Self

Converts to this type from a reference to the input type.

Object Safety

This trait is not object safe.

Implementors

impl<T> FromRef<T> for T

where T: Clone,