calc_graph

Struct Const

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pub struct Const<T>(/* private fields */);
Expand description

Calculates a node’s value by returning the same value every time.

Trait Implementations§

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impl<T: Clone> Calc for Const<T>

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type Value = T

The type of values calculated by the node.
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fn add_dep(&mut self, _seen: &mut BitSet, _dep: NonZeroUsize)

When this node is used as a precedent, add_dep is called by dependent nodes when they are created. Read more
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fn eval(&mut self, _dirty: &mut BitSet) -> (NonZeroUsize, T)

Returns the value held within the node and the version number of the inputs used to calcuate that value. The value is recalculated if needed. Read more

Auto Trait Implementations§

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impl<T> Freeze for Const<T>
where T: Freeze,

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

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

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

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

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impl<T> UnwindSafe for Const<T>
where T: 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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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.
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impl<T> Erased for T