Trait IntoOption 

pub trait IntoOption
where
    Self: Sized,
{
    // Provided methods
    fn some_if(self, predicate: bool) -> Option<Self> { ... }
    fn with_some_if<F>(self, predicate: F) -> Option<Self>
       where F: FnOnce(&Self) -> bool { ... }
    fn none_if(self, predicate: bool) -> Option<Self> { ... }
    fn with_none_if<F>(self, predicate: F) -> Option<Self>
       where F: FnOnce(&Self) -> bool { ... }
}

Wrap Self in a Option based off a predicate.

Provided Methods

fn some_if(self, predicate: bool) -> Option<Self>

Results Some(self) if the predicate returns true, or None otherwise.

fn with_some_if<F>(self, predicate: F) -> Option<Self>

where F: FnOnce(&Self) -> bool,

Results Some(self) if the predicate returns true, or None otherwise.

fn none_if(self, predicate: bool) -> Option<Self>

Results None if the predicate returns true, or Some(self) otherwise.

fn with_none_if<F>(self, predicate: F) -> Option<Self>

where F: FnOnce(&Self) -> bool,

Results None if the predicate returns true, or Some(self) otherwise.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl<T> IntoOption for T