Trait MetaAssociativeCompositionSignature 

pub trait MetaAssociativeCompositionSignature: MetaType
where
    Self::Signature: AssociativeCompositionSignature,
{
    // Provided method
    fn compose_nonempty_list(elems: Vec<impl Borrow<Self>>) -> Option<Self> { ... }
}

Provided Methods

fn compose_nonempty_list(elems: Vec<impl Borrow<Self>>) -> Option<Self>

Returns None if the list is empty.

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> MetaAssociativeCompositionSignature for T

where T: MetaType, T::Signature: AssociativeCompositionSignature,