Enum LinkPredicate 

#[non_exhaustive]
pub enum LinkPredicate {
    Target(String),
    Where(Box<Expr>),
}

A predicate over the link graph: either a literal target, or a query into records satisfying a sub-expression. The Where variant is what makes joins-via-links possible (e.g., “give me all notes that link to anything tagged topic/ai”).

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Target(String)

Where(Box<Expr>)

Trait Implementations

impl Clone for LinkPredicate

fn clone(&self) -> LinkPredicate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LinkPredicate

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for LinkPredicate

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for LinkPredicate

fn eq(&self, other: &LinkPredicate) -> 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 Serialize for LinkPredicate

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for LinkPredicate