Enum Expr 

pub enum Expr {
    And(Vec<Expr>),
    Or(Vec<Expr>),
    Xor(Box<Expr>, Box<Expr>),
    Nor(Vec<Expr>),
    Not(Box<Expr>),
    Field(FieldPred),
    Related(RelatedExpr),
}

Boolean expression tree evaluated against a reconstructed record.

Variants

And(Vec<Expr>)

Logical AND of every child.

Or(Vec<Expr>)

Logical OR of every child.

Xor(Box<Expr>, Box<Expr>)

Logical XOR ($xor)

Nor(Vec<Expr>)

Logical NOR ($nor)

Not(Box<Expr>)

Logical negation of the child.

Field(FieldPred)

A single field predicate.

Related(RelatedExpr)

Related-record traversal predicate (label-key blocks, $relation, hops, $cycle). Evaluated existentially over reachable targets.

Trait Implementations

impl Clone for Expr

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Expr

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Expr

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Expr

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Expr

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 Expr