Enum arithmetic_typing::TupleIndex

#[non_exhaustive]
pub enum TupleIndex {
    Start(usize),
    Middle,
    End(usize),
}

Index of an element within a tuple.

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.

Start(usize)

0-based index from the start of the tuple.

Middle

Middle element.

End(usize)

0-based index from the end of the tuple.

Trait Implementations

impl Clone for TupleIndex

fn clone(&self) -> TupleIndex

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for TupleIndex

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

Formats the value using the given formatter.

impl From<TupleIndex> for ErrorPathFragment

fn from(index: TupleIndex) -> Self

Converts to this type from the input type.

impl PartialEq for TupleIndex

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for TupleIndex

impl Eq for TupleIndex

impl StructuralPartialEq for TupleIndex