Struct deferred::value::Value

pub struct Value { /* private fields */ }

Wrapper over value of non-specified type.

Example

let v = Value::new(Box::new(42));
assert_eq!(v.is::<i32>(), true);
assert_eq!(v.is::<f32>(), false);
assert_eq!(v.get::<i32>(), Some(&42));
assert_eq!(v.into_cloned::<i32>(), Some(42));
assert_eq!(v.into_cloned::<f32>(), None);
assert_eq!(v.unwrap::<i32>(), &42);
assert_eq!(v.consume::<i32>(), 42);

Implementations

impl Value

pub fn new(value: Box<dyn Any>) -> Self

Returns new value.

Arguments

• value - boxed value of any type.

pub fn is<T: 'static>(&self) -> bool

Tells if value is type of given type.

pub fn get<T: 'static>(&self) -> Option<&T>

Gets reference to value of given type or None if its not of that type.

pub fn get_mut<T: 'static>(&mut self) -> Option<&mut T>

Gets mutable reference to value of given type or None if its not of that type.

pub fn into_cloned<T>(&self) -> Option<T>where
    T: Clone + 'static,

Gets cloned value of given type or None if its not of that type.

pub fn unwrap<T: 'static>(&self) -> &T

Gets reference to value of given type or panics if its not of that type.

Panics

• when trying to use target type other than that of inner value.

pub fn unwrap_mut<T: 'static>(&mut self) -> &mut T

Gets mutable reference to value of given type or panics if its not of that type.

Panics

• when trying to use target type other than that of inner value.

pub fn consume<T>(self) -> Twhere
    T: Clone + 'static,

Consumes value of given type and returns it or panics if its not of that type.

Panics

• when trying to use target type other than that of inner value.