Trait intoif::IntoOption

pub trait IntoOption where
    Self: Sized, {
    fn some_if<P>(self, predicate: P) -> Option<Self>
    where
        P: FnOnce(&Self) -> bool,
    { ... }
    fn none_if<P>(self, predicate: P) -> Option<Self>
    where
        P: FnOnce(&Self) -> bool,
    { ... }
}

Allow construction of Option from any type using predicate to choose between Some and None.

Provided methods

fn some_if<P>(self, predicate: P) -> Option<Self> where
    P: FnOnce(&Self) -> bool, 

Returns Some(self) if predicate returns true on self, None otherwise.

fn none_if<P>(self, predicate: P) -> Option<Self> where
    P: FnOnce(&Self) -> bool, 

Returns None if predicate returns true on self, Some(self) otherwise.

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Implementors

impl<T> IntoOption for T

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