Enum BindingProjection 

pub enum BindingProjection {
    Property {
        target: BindingTarget,
        source: String,
        alias: String,
    },
    Coalesce {
        refs: Vec<BindingValueRef>,
        alias: String,
    },
}

Projection from row-local bindings.

use helix_ast::projection::{BindingProjection, BindingValueRef};

let projection = BindingProjection::coalesce(
    vec![
        BindingValueRef::binding("deployment", "$id"),
        BindingValueRef::binding("owner", "$id"),
    ],
    "workload_id",
);
assert_eq!(
    sonic_rs::to_string(&projection).unwrap(),
    r#"{"coalesce":{"refs":[{"target":{"binding":"deployment"},"source":"$id"},{"target":{"binding":"owner"},"source":"$id"}],"alias":"workload_id"}}"#
);

Variants

Property

Project a single property.

Fields

target: BindingTarget

Current or named binding.

source: String

Source property.

alias: String

Output name.

Coalesce

Project first present non-null reference.

Fields

refs: Vec<BindingValueRef>

Candidate references.

alias: String

Output name.

Implementations

impl BindingProjection

pub fn property( target: BindingTarget, source: impl Into<String>, alias: impl Into<String>, ) -> BindingProjection

Project a property.

pub fn current( source: impl Into<String>, alias: impl Into<String>, ) -> BindingProjection

Project from current traverser.

pub fn binding( name: impl Into<String>, source: impl Into<String>, alias: impl Into<String>, ) -> BindingProjection

Project from named binding.

pub fn coalesce( refs: Vec<BindingValueRef>, alias: impl Into<String>, ) -> BindingProjection

Project first present non-null reference.

Trait Implementations

impl Clone for BindingProjection

fn clone(&self) -> BindingProjection

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BindingProjection

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for BindingProjection

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for BindingProjection

impl PartialEq for BindingProjection

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for BindingProjection

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 BindingProjection