[][src]Trait core_extensions::bool_extensions::BoolExt

pub trait BoolExt: TypeIdentity<Type = bool> + Sized {
    fn if_true<T, F>(self, some: F) -> Option<T>
    where
        F: FnOnce() -> T
, { ... }
fn if_false<T, F>(self, some: F) -> Option<T>
    where
        F: FnOnce() -> T
, { ... } }

Extension trait for bool.

Provided methods

fn if_true<T, F>(self, some: F) -> Option<T> where
    F: FnOnce() -> T, 

Returns Some(some()) if self==true.Otherwise returns None.

Example

use core_extensions::bool_extensions::BoolExt;

assert_eq!(true .if_true(|| 100 ),Some(100));
assert_eq!(false.if_true(|| 100 ),None);

fn if_false<T, F>(self, some: F) -> Option<T> where
    F: FnOnce() -> T, 

Returns Some(some()) if self==false.Otherwise returns None.

Example

use core_extensions::bool_extensions::BoolExt;

assert_eq!(false.if_false(|| 100 ),Some(100));
assert_eq!(true .if_false(|| 100 ),None);
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Implementations on Foreign Types

impl BoolExt for bool[src]

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Implementors

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