Struct ExtensionSet

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

A set of extensions identified by their unique ExtensionId.

Implementations

impl ExtensionSet

pub const fn new() -> Self

Creates a new empty extension set.

pub fn insert(&mut self, extension: &ExtensionId)

Adds a extension to the set.

pub fn insert_type_var(&mut self, idx: usize)

Adds a type var (which must have been declared as a TypeParam::Extensions) to this set

pub fn contains(&self, extension: &ExtensionId) -> bool

Returns true if the set contains the given extension.

pub fn is_subset(&self, other: &Self) -> bool

Returns true if the set is a subset of other.

pub fn is_superset(&self, other: &Self) -> bool

Returns true if the set is a superset of other.

pub fn singleton(extension: &ExtensionId) -> Self

Create a extension set with a single element.

pub fn type_var(idx: usize) -> Self

An ExtensionSet containing a single type variable (which must have been declared as a TypeParam::Extensions)

pub fn union(self, other: Self) -> Self

Returns the union of two extension sets.

pub fn union_over(sets: impl IntoIterator<Item = Self>) -> Self

Returns the union of an arbitrary collection of ExtensionSets

pub fn missing_from(&self, other: &Self) -> Self

The things in other which are in not in self

pub fn iter(&self) -> impl Iterator<Item = &ExtensionId>

Iterate over the contained ExtensionIds

pub fn is_empty(&self) -> bool

True if this set contains no ExtensionIds

Trait Implementations

impl Clone for ExtensionSet

fn clone(&self) -> ExtensionSet

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExtensionSet

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

Formats the value using the given formatter.

impl Default for ExtensionSet

fn default() -> ExtensionSet

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for ExtensionSet

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ExtensionSet

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

Formats the value using the given formatter.

impl From<ExtensionSet> for TypeArg

fn from(es: ExtensionSet) -> Self

Converts to this type from the input type.

impl From<IdentList> for ExtensionSet

fn from(id: ExtensionId) -> Self

Converts to this type from the input type.

impl FromIterator<IdentList> for ExtensionSet

fn from_iter<I: IntoIterator<Item = ExtensionId>>(iter: I) -> Self

Creates a value from an iterator.

impl Hash for ExtensionSet

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 PartialEq for ExtensionSet

fn eq(&self, other: &ExtensionSet) -> 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 Serialize for ExtensionSet

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for ExtensionSet

impl StructuralPartialEq for ExtensionSet