Trait tool::empty::IsEmpty

pub trait IsEmpty {
    fn is_empty(&self) -> bool;
}

[−] Expand description

Things that can be "empty".

Required Methods

fn is_empty(&self) -> bool

Implementors

• impl<'a, T: IsEmpty + ?Sized> IsEmpty for &'a T
• impl<'a, T: IsEmpty + ?Sized> IsEmpty for &'a mut T
• impl<T: IsEmpty> IsEmpty for Option<T>
• impl IsEmpty for str
• impl<T> IsEmpty for [T]
• impl<K, V, S> IsEmpty for HashMap<K, V, S> where K: Eq + Hash, S: BuildHasher
• impl<K, V> IsEmpty for BTreeMap<K, V>
• impl<T> IsEmpty for Vec<T>
• impl IsEmpty for String
• impl IsEmpty for OsStr
• impl IsEmpty for OsString
• impl IsEmpty for CStr
• impl IsEmpty for CString
• impl<T: ?Sized + IsEmpty> IsEmpty for Box<T>
• impl<T: ?Sized + IsEmpty> IsEmpty for Rc<T>
• impl<T: ?Sized + IsEmpty> IsEmpty for Arc<T>