Enum Projection 

pub enum Projection {
    Property(PropertyProjection),
    Expr(ExprProjection),
}

Projection entry.

Variants

Property(PropertyProjection)

Property projection.

Expr(ExprProjection)

Expression projection.

Implementations

impl Projection

pub fn property( source: impl Into<String>, alias: impl Into<String>, ) -> Projection

Project a property.

pub fn from_endpoint( source: impl Into<String>, alias: impl Into<String>, ) -> Projection

Project from the source endpoint of an edge.

pub fn to_endpoint( source: impl Into<String>, alias: impl Into<String>, ) -> Projection

Project from the target endpoint of an edge.

pub fn expr(alias: impl Into<String>, expr: Expr) -> Projection

Project an expression.

Trait Implementations

impl Clone for Projection

fn clone(&self) -> Projection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Projection

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Projection

fn deserialize<__D>( __deserializer: __D, ) -> Result<Projection, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<ExprProjection> for Projection

fn from(value: ExprProjection) -> Projection

Converts to this type from the input type.

impl From<PropertyProjection> for Projection

fn from(value: PropertyProjection) -> Projection

Converts to this type from the input type.

impl PartialEq for Projection

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Projection

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Projection