Enum OneOfFour

pub enum OneOfFour<A, B, C, D> {
    A(A),
    B(B),
    C(C),
    D(D),
}

One of A, B, C, or D.

Variants

A(A)

B(B)

C(C)

D(D)

Trait Implementations

impl<A: Clone, B: Clone, C: Clone, D: Clone> Clone for OneOfFour<A, B, C, D>

fn clone(&self) -> OneOfFour<A, B, C, D>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<A: Debug, B: Debug, C: Debug, D: Debug> Debug for OneOfFour<A, B, C, D>

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

Formats the value using the given formatter.

impl<A: Parse, B: Parse, C: Parse, D: Parse> Parse for OneOfFour<A, B, C, D>

fn parse(parser: &mut Parser<'_>) -> Option<Self>

Parses an item.

fn name() -> Option<fn() -> String>

Name of the item to be parsed.

impl<A: Span, B: Span, C: Span, D: Span> Span for OneOfFour<A, B, C, D>

fn start_position(&self) -> Position

Returns the start position of this item.

fn end_position(&self) -> Position

Returns the end position of this item.

fn is_empty(&self) -> bool

Returns true if the span is empty, otherwise false.

fn len(&self) -> usize

Returns the length of this span.

fn text<'a>(&self, text: &'a str) -> &'a str

Returns the text representation of this item.

impl<A: Copy, B: Copy, C: Copy, D: Copy> Copy for OneOfFour<A, B, C, D>