pub struct Const<T>(pub T);
Expand description

The same value every time.

In general, using a lambda has fewer restrictions than using Const, because you can avoid the Clone requirement on your type.

Example:

use boulder::{Const, Generator};

let mut g = Const(1);
assert_eq!(g.generate(), 1);
assert_eq!(g.generate(), 1);
assert_eq!(g.generate(), 1);

Tuple Fields

0: T

Implementations

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

The output type.

Make a new object. Read more

Available on crate feature persian-rug only.

The output type.

Available on crate feature persian-rug only.

Make a new object. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

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

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.