Enum ElementLabel 

pub enum ElementLabel<'a> {
    Unnamed(usize),
    Named(&'a str),
}

A label for a field of a ProductType or a variant of a SumType.

The ordering on this type defines the default ordering for the fields of a ProductType and the variants of a SumType.

Variants

Unnamed(usize)

An unnamed field with a position. The unnamed fields in a type do not necessarily have contiguous positions.

Named(&'a str)

A named field. Names are required to be unique within the product type.

Trait Implementations

impl<'a> From<(usize, &'a ProductTypeElement)> for ElementLabel<'a>

fn from((i, element): (usize, &'a ProductTypeElement)) -> Self

Converts to this type from the input type.

impl<'a> From<(usize, &'a SumTypeVariant)> for ElementLabel<'a>

fn from((i, element): (usize, &'a SumTypeVariant)) -> Self

Converts to this type from the input type.

impl<'a> Ord for ElementLabel<'a>

fn cmp(&self, other: &ElementLabel<'a>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<'a> PartialEq for ElementLabel<'a>

fn eq(&self, other: &ElementLabel<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

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

impl<'a> PartialOrd for ElementLabel<'a>

fn partial_cmp(&self, other: &ElementLabel<'a>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<'a> Eq for ElementLabel<'a>

impl<'a> StructuralPartialEq for ElementLabel<'a>