Trait egg::LanguageChildren

source · [−]
pub trait LanguageChildren {
    fn len(&self) -> usize;

    fn can_be_length(n: usize) -> bool;

    fn from_vec(v: Vec<Id>) -> Self;

    fn as_slice(&self) -> &[Id];

    fn as_mut_slice(&mut self) -> &mut [Id];

    fn is_empty(&self) -> bool { ... }
}
Expand description

A marker that defines acceptable children types for define_language!.

See define_language! for more details. You should not have to implement this trait.

Required methods

Returns the number of children.

Checks if n is an acceptable number of children for this type.

Create an instance of this type from a Vec<Id>, with the guarantee that can_be_length is already true on the Vec.

Returns a slice of the children Ids.

Returns a mutable slice of the children Ids.

Provided methods

Checks if there are no children.

Implementations on Foreign Types

Implementors