Enum PlaceHolder 

pub enum PlaceHolder<T> {
    Ref(Name),
    Owned(T),
}

Owned value or reference through entity/value id

Variants

Ref(Name)

Owned(T)

Trait Implementations

impl<T: Clone> Clone for PlaceHolder<T>

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

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for PlaceHolder<T>

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

Formats the value using the given formatter.

impl<'de, T: Holder + WithVisitor + Deserialize<'de>> Deserialize<'de> for PlaceHolder<T>

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> From<Name> for PlaceHolder<T>

fn from(rvalue: Name) -> Self

Converts to this type from the input type.

impl<T: Holder> From<T> for PlaceHolder<T>

fn from(owned: T) -> Self

Converts to this type from the input type.

impl<T: Holder> IntoOwned for PlaceHolder<T>

where T::Table: EntityTable<T>,

fn into_owned(self, table: &Self::Table) -> Result<T::Owned>

Get owned value, or look up entity table and clone it for a reference.

Errors

• if table lookup failed, i.e. unknown entity id not registered in the table

type Owned = <T as IntoOwned>::Owned

type Table = <T as IntoOwned>::Table

impl<T: PartialEq> PartialEq for PlaceHolder<T>

fn eq(&self, other: &PlaceHolder<T>) -> bool

Equality operator ==.

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

Inequality operator !=.

impl<T: PartialEq> StructuralPartialEq for PlaceHolder<T>