Struct ConstFields 

pub struct ConstFields<'a> { /* private fields */ }

The fields of an instance or the values of an object.

A field is a subtree rather than an element, so this is a view over the run which holds them all rather than a slice of them.

Implementations

impl<'a> ConstFields<'a>

pub fn len(&self) -> usize

How many fields there are.

pub fn is_empty(&self) -> bool

Whether there are no fields.

pub fn get(&self, index: usize) -> Option<&'a ConstValue>

Get the field at index.

This walks past the fields before it, since a field is as long as the subtree it is.

pub fn iter(&self) -> ConstFieldsIter<'a>

Iterate over the fields in order.

Trait Implementations

impl<'a> Clone for ConstFields<'a>

fn clone(&self) -> ConstFields<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Copy for ConstFields<'a>

impl Debug for ConstFields<'_>

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

Formats the value using the given formatter.

impl<'a> IntoIterator for ConstFields<'a>

type Item = &'a ConstValue

The type of the elements being iterated over.

type IntoIter = ConstFieldsIter<'a>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.