testclourse

Struct Cacher

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pub struct Cacher<T, P, O>
where
    T: Fn(P) -> O,
    P: Eq + Hash + Copy,
    O: Copy,
{
    pub caculation: T,
    pub value: HashMap<P, O>,
}

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§caculation: T§value: HashMap<P, O>

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impl<T, P, O> Cacher<T, P, O>
where T: Fn(P) -> O, P: Eq + Hash + Copy, O: Copy,

let mut c = testclourse::Cacher::new(|a| a);
let v = c.value(2);
assert_eq!(v, 2);
let mut c2 = testclourse::Cacher::new(|mystring: &str| mystring.len());
let v2 = c2.value("abcd");
assert_eq!(v, 2);
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pub fn new(caculation: T) -> Cacher<T, P, O>

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pub fn value(&mut self, arg: P) -> O

Auto Trait Implementations§

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impl<T, P, O> Freeze for Cacher<T, P, O>
where T: Freeze,

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impl<T, P, O> RefUnwindSafe for Cacher<T, P, O>
where T: RefUnwindSafe, P: RefUnwindSafe, O: RefUnwindSafe,

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impl<T, P, O> Send for Cacher<T, P, O>
where T: Send, P: Send, O: Send,

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impl<T, P, O> Sync for Cacher<T, P, O>
where T: Sync, P: Sync, O: Sync,

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impl<T, P, O> Unpin for Cacher<T, P, O>
where T: Unpin, P: Unpin, O: Unpin,

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impl<T, P, O> UnwindSafe for Cacher<T, P, O>
where T: UnwindSafe, P: UnwindSafe, O: UnwindSafe,

Blanket Implementations§

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.