Enum ListElem 

#[non_exhaustive]
pub enum ListElem {
    Item(Expr),
    Spread(Expr),
}

One element of a list literal.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Item(Expr)

A plain element: [a b c] — each word nests as ONE element (no implicit splitting of a variable’s contents).

Spread(Expr)

A spread element: [...$xs date] — flattens the referenced list’s elements into the new list at this position. Records have no spread: merging records is set/map algebra, which the first cut left out.

Trait Implementations

impl Clone for ListElem

fn clone(&self) -> ListElem

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ListElem

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for ListElem

fn eq(&self, other: &ListElem) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for ListElem