Struct Key 

pub struct Key<T: ValueType> { /* private fields */ }

A property key that carries its value type T in the type system.

Performance

Copying and unwrapping are O(1).

Implementations

impl<T: ValueType> Key<T>

pub const fn from_id(id: PropertyKeyId) -> Self

Wraps a plain property key id as a typed key. The caller asserts the key was declared with type T::TYPE.

Performance

This function is O(1).

pub const fn id(self) -> PropertyKeyId

Returns the underlying plain property key id.

Performance

This function is O(1).

Trait Implementations

impl<T: Clone + ValueType> Clone for Key<T>

fn clone(&self) -> Key<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Copy + ValueType> Copy for Key<T>

impl<T: Debug + ValueType> Debug for Key<T>

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

Formats the value using the given formatter.

impl<T: Eq + ValueType> Eq for Key<T>

impl<T: Hash + ValueType> Hash for Key<T>

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<T: PartialEq + ValueType> PartialEq for Key<T>

fn eq(&self, other: &Key<T>) -> 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<T: ValueType> StructuralPartialEq for Key<T>