Enum EntityReference 

pub enum EntityReference {
    EUID(Arc<EntityUID>),
    Slot(Option<Loc>),
}

A reference to an EntityUID that may be a Slot

Variants

EUID(Arc<EntityUID>)

Reference to a literal EUID

Slot(Option<Loc>)

Template Slot

Implementations

impl EntityReference

pub fn euid(euid: Arc<EntityUID>) -> Self

Create an entity reference to a specific EntityUID

pub fn into_expr(&self, slot: SlotId) -> Expr

Transform into an expression AST

slot indicates what SlotId would be implied by EntityReference::Slot, which is always clear from the caller’s context.

Trait Implementations

impl Clone for EntityReference

fn clone(&self) -> EntityReference

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EntityReference

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

Formats the value using the given formatter.

impl From<EntityUID> for EntityReference

fn from(euid: EntityUID) -> Self

Converts to this type from the input type.

impl Hash for EntityReference

where Arc<EntityUID>: Hash,

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 EntityReference

where Arc<EntityUID>: Ord, Self: Eq,

fn cmp(&self, other: &Self) -> 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 EntityReference

where Arc<EntityUID>: PartialEq,

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

where Arc<EntityUID>: Ord, Self: Eq,

fn partial_cmp(&self, other: &Self) -> 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 EntityReference