Enum UsersetExpression 

pub enum UsersetExpression {
    This,
    ComputedUserset {
        relation: RelationName,
    },
    TupleToUserset {
        tupleset_relation: RelationName,
        computed_userset_relation: RelationName,
    },
    Union(Vec<UsersetExpression>),
    Intersection(Vec<UsersetExpression>),
    Exclusion {
        base: Box<UsersetExpression>,
        exclude: Box<UsersetExpression>,
    },
}

Typed userset expression.

Variants

This

Direct relationships stored on this object and relation.

ComputedUserset

A relation on the same object.

Fields

relation: RelationName

Referenced relation.

TupleToUserset

A relation reached through userset subjects on another relation.

Fields

tupleset_relation: RelationName

Relation containing intermediate userset subjects.

computed_userset_relation: RelationName

Relation to evaluate on each intermediate object.

Union(Vec<UsersetExpression>)

Union of child expressions.

Intersection(Vec<UsersetExpression>)

Intersection of child expressions.

Exclusion

Exclusion of one expression from another.

Fields

base: Box<UsersetExpression>

Base expression.

exclude: Box<UsersetExpression>

Expression to subtract.

Trait Implementations

impl Clone for UsersetExpression

fn clone(&self) -> UsersetExpression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for UsersetExpression

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

Formats the value using the given formatter.

impl Eq for UsersetExpression

impl PartialEq for UsersetExpression

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for UsersetExpression