Trait TakeIf

pub trait TakeIf {
    type Inner;

    // Required method
    fn take_if<F: FnOnce(&Self::Inner) -> bool>(
        &mut self,
        predicate: F,
    ) -> Option<Self::Inner>;
}

Extension trait for Option<T> that adds the take_if method.

See the crate-level documentation for more information.

Required Associated Types

type Inner

The type contained in the Option.

Required Methods

fn take_if<F: FnOnce(&Self::Inner) -> bool>( &mut self, predicate: F, ) -> Option<Self::Inner>

Takes value out of the Option if predicate returns true.

See the crate-level documentation for more information.

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.

Implementations on Foreign Types

impl<T> TakeIf for Option<T>

type Inner = T

fn take_if<F: FnOnce(&Self::Inner) -> bool>( &mut self, predicate: F, ) -> Option<Self::Inner>

Implementors