Trait Length 

pub trait Length {
    // Required method
    fn len(&self) -> Option<usize>;

    // Provided method
    fn is_empty(&self) -> Option<bool> { ... }
}

Get the usable length of a type.

Required Methods

fn len(&self) -> Option<usize>

Provided Methods

fn is_empty(&self) -> Option<bool>

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<T: ArrayProperty + InspectTypeInternal> Length for T