[−][src]Enum druid::KeyOrValue

pub enum KeyOrValue<T> {
    Concrete(Value),
    Key(Key<T>),
}

Either a concrete T or a Key<T> that can be resolved in the Env.

This is a way to allow widgets to interchangeably use either a specific value or a value from the environment for some purpose.

Variants

Concrete(Value)
Key(Key<T>)

Methods

impl<'a, T: ValueType<'a>> KeyOrValue<T>[src]

pub fn resolve(&'a self, env: &'a Env) -> T[src]

Trait Implementations

impl<'a, T: ValueType<'a>> From<Key<T>> for KeyOrValue<T>[src]

impl<'a, V: Into<Value>, T: ValueType<'a, Owned = V>> From<V> for KeyOrValue<T>[src]

Auto Trait Implementations

impl<T> RefUnwindSafe for KeyOrValue<T> where
    T: RefUnwindSafe, 

impl<T> Send for KeyOrValue<T> where
    T: Send, 

impl<T> Sync for KeyOrValue<T> where
    T: Sync, 

impl<T> Unpin for KeyOrValue<T> where
    T: Unpin, 

impl<T> UnwindSafe for KeyOrValue<T> where
    T: UnwindSafe, 

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src]

impl<T> Borrow<T> for T where
    T: ?Sized, [src]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, [src]

impl<T> RoundFrom<T> for T

impl<T, U> RoundInto<U> for T where
    U: RoundFrom<T>, 

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.