Enum DynamicExpr 

pub enum DynamicExpr {
    Compare {
        attr_name: String,
        operator: DynamicComparisonOp,
        value: AttributeValue,
    },
    Iid {
        iid: String,
    },
    IsNull {
        attr_name: String,
        is_null: bool,
    },
    And {
        exprs: Vec<DynamicExpr>,
    },
    Or {
        exprs: Vec<DynamicExpr>,
    },
    Not {
        expr: Box<DynamicExpr>,
    },
    RolePlayer {
        role_name: String,
        expr: Box<DynamicExpr>,
    },
}

Runtime expression tree requested by a language binding.

Variants

Compare

Attribute comparison or string operator.

Fields

attr_name: String

Attribute type name.

operator: DynamicComparisonOp

Typed comparison operator.

value: AttributeValue

Typed value to compare against.

Iid

IID lookup for the current thing variable.

Fields

iid: String

TypeDB internal identifier.

IsNull

Presence/absence lookup for an owned attribute.

Fields

attr_name: String

Attribute type name.

is_null: bool

true means the owner must not have this attribute.

And

All child expressions must match.

Fields

exprs: Vec<DynamicExpr>

Child expressions.

Or

At least one child expression must match.

Fields

exprs: Vec<DynamicExpr>

Child expressions.

Not

The child expression must not match.

Fields

expr: Box<DynamicExpr>

Child expression.

RolePlayer

Apply an expression to a relation role-player variable.

Fields

role_name: String

Relation role name.

expr: Box<DynamicExpr>

Expression applied to that role player.

Trait Implementations

impl Clone for DynamicExpr

fn clone(&self) -> DynamicExpr

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DynamicExpr

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DynamicExpr

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for DynamicExpr

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for DynamicExpr

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 DynamicExpr