Struct NsSet 

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

A set of Namespaces, as a bit set.

Examples

use resolve_lang::{Namespace, NsSet};

let set = NsSet::of(&[Namespace::Type, Namespace::Value]);
assert!(set.contains(Namespace::Type));
assert!(!set.contains(Namespace::Module));
assert_eq!(set.iter().count(), 2);

Implementations

impl NsSet

pub const EMPTY: Self

The empty set.

Examples

use resolve_lang::NsSet;

assert!(NsSet::EMPTY.is_empty());

pub const fn of(namespaces: &[Namespace]) -> Self

A set holding exactly namespaces.

Examples

use resolve_lang::{Namespace, NsSet};

assert_eq!(NsSet::of(&[Namespace::Value]), NsSet::single(Namespace::Value));

pub const fn single(ns: Namespace) -> Self

A set holding one namespace.

Examples

use resolve_lang::{Namespace, NsSet};

assert!(NsSet::single(Namespace::Macro).contains(Namespace::Macro));

pub const fn contains(self, ns: Namespace) -> bool

Whether ns is in the set.

Examples

use resolve_lang::{Namespace, NsSet};

assert!(!NsSet::EMPTY.contains(Namespace::Value));

pub const fn is_empty(self) -> bool

Whether the set is empty.

Examples

use resolve_lang::{Namespace, NsSet};

assert!(!NsSet::single(Namespace::Type).is_empty());

pub const fn with(self, ns: Namespace) -> Self

The set with ns added.

Examples

use resolve_lang::{Namespace, NsSet};

let s = NsSet::EMPTY.with(Namespace::Type);
assert!(s.contains(Namespace::Type));

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

The namespaces in the set, in table order.

Examples

use resolve_lang::{Namespace, NsSet};

let v: Vec<_> = NsSet::of(&[Namespace::Module, Namespace::Value]).iter().collect();
assert_eq!(v, [Namespace::Value, Namespace::Module]);

Trait Implementations

impl Clone for NsSet

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for NsSet

impl Debug for NsSet

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

Formats the value using the given formatter.

impl Default for NsSet

fn default() -> Self

Returns the “default value” for a type.

impl Eq for NsSet

impl Hash for NsSet

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 NsSet

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for NsSet