Struct ColSet 

pub struct ColSet(/* private fields */);

A compressed set of columns. Like a ColList, but guaranteed to be sorted and to contain no duplicate entries. Dereferences to a ColList for convenience.

Implementations

impl ColSet

pub fn contains(&self, needle: ColId) -> bool

Check if a ColSet contains a given column.

Methods from Deref<Target = ColList>

pub fn as_singleton(&self) -> Option<ColId>

Returns head if that is the only element.

pub fn head(&self) -> Option<ColId>

Returns the head of the list, if any.

pub fn last(&self) -> Option<ColId>

Returns the last of the list, if any.

pub fn contains(&self, needle: ColId) -> bool

Returns whether needle is contained in the list.

This an be faster than using list.iter().any(|c| c == needle).

pub fn iter(&self) -> impl '_ + Clone + Iterator<Item = ColId>

Returns an iterator over all the columns in this list.

pub fn to_u16_vec(&self) -> Box<[u16]>

Convert to a Box<[u16]>.

pub fn len(&self) -> u16

Returns the length of the list.

pub fn is_empty(&self) -> bool

Returns whether the list is empty.

Trait Implementations

impl Clone for ColSet

fn clone(&self) -> ColSet

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColSet

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

Formats the value using the given formatter.

impl Deref for ColSet

type Target = ColList

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl From<&ColList> for ColSet

fn from(value: &ColList) -> Self

Converts to this type from the input type.

impl<C: Into<ColId>> From<C> for ColSet

fn from(value: C) -> Self

Converts to this type from the input type.

impl From<ColList> for ColSet

fn from(list: ColList) -> Self

Converts to this type from the input type.

impl From<ColOrCols<'_>> for ColSet

fn from(value: ColOrCols<'_>) -> Self

Converts to this type from the input type.

impl From<ColSet> for ColList

fn from(value: ColSet) -> Self

Converts to this type from the input type.

impl<C: Into<ColId>> FromIterator<C> for ColSet

fn from_iter<T: IntoIterator<Item = C>>(iter: T) -> Self

Creates a value from an iterator.

impl Hash for ColSet

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ColSet

fn cmp(&self, other: &ColSet) -> 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 PartialEq for ColSet

fn eq(&self, other: &ColSet) -> 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 PartialOrd for ColSet

fn partial_cmp(&self, other: &ColSet) -> 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 Eq for ColSet

impl StructuralPartialEq for ColSet