Struct Assignments 

pub struct Assignments { /* private fields */ }

Implementations

impl Assignments

pub fn with_capacity(capacity: usize) -> Assignments

pub fn is_empty(&self) -> bool

pub fn len(&self) -> usize

pub fn contains<Q>(&self, key: &Q) -> bool

where Q: Hash + Equivalent<Projection> + ?Sized,

pub fn get<Q>(&self, key: &Q) -> Option<&Assignment>

where Q: Hash + Equivalent<Projection> + ?Sized,

pub fn get_mut<Q>(&mut self, key: &Q) -> Option<&mut Assignment>

where Q: Hash + Equivalent<Projection> + ?Sized,

pub fn set<Q>(&mut self, key: Q, expr: impl Into<Expr>)

where Q: Into<Projection>,

pub fn unset<Q>(&mut self, key: &Q)

where Q: Hash + Equivalent<Projection> + ?Sized,

pub fn insert<Q>(&mut self, key: Q, expr: impl Into<Expr>)

where Q: Into<Projection>,

Insert a value into a set. The expression should evaluate to a single value that is inserted into the set.

pub fn remove<Q>(&mut self, key: Q, expr: impl Into<Expr>)

where Q: Into<Projection>,

pub fn take<Q>(&mut self, key: &Q) -> Option<Assignment>

where Q: Hash + Equivalent<Projection> + ?Sized,

pub fn keys(&self) -> impl Iterator<Item = &Projection>

pub fn exprs(&self) -> impl Iterator<Item = &Expr>

pub fn iter(&self) -> impl Iterator<Item = (&Projection, &Assignment)>

pub fn iter_mut( &mut self, ) -> impl Iterator<Item = (&Projection, &mut Assignment)>

Trait Implementations

impl Clone for Assignments

fn clone(&self) -> Assignments

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Assignments

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

Formats the value using the given formatter.

impl Default for Assignments

fn default() -> Assignments

Returns the “default value” for a type.

impl<Q> Index<Q> for Assignments

where Q: Hash + Equivalent<Projection>,

type Output = Assignment

The returned type after indexing.

fn index(&self, index: Q) -> &<Assignments as Index<Q>>::Output

Performs the indexing (container[index]) operation.

impl<Q> IndexMut<Q> for Assignments

where Q: Hash + Equivalent<Projection>,

fn index_mut(&mut self, index: Q) -> &mut <Assignments as Index<Q>>::Output

Performs the mutable indexing (container[index]) operation.

impl<'a> IntoIterator for &'a Assignments

type Item = (&'a Projection, &'a Assignment)

The type of the elements being iterated over.

type IntoIter = Iter<'a, Projection, Assignment>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <&'a Assignments as IntoIterator>::IntoIter

Creates an iterator from a value.

impl IntoIterator for Assignments

type Item = (Projection, Assignment)

The type of the elements being iterated over.

type IntoIter = IntoIter<Projection, Assignment>

Which kind of iterator are we turning this into?

fn into_iter(self) -> <Assignments as IntoIterator>::IntoIter

Creates an iterator from a value.

impl PartialEq for Assignments

fn eq(&self, other: &Assignments) -> 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 StructuralPartialEq for Assignments