Struct Rewrite 

pub struct Rewrite {
    pub relation: String,
    pub via_relation: String,
    pub on_relation: String,
    pub object_type: Option<String>,
}

A derived-relation rule: relation holds on an object when on_relation holds on whatever that object’s via_relation points at.

This is Zanzibar’s tuple-to-userset rewrite. With {relation: viewer, via: parent, on: viewer} and the tuples tenant:acme parent database:music and user:alice viewer tenant:acme, alice is a viewer of database:music without a tuple naming it.

Fields

relation: String

The relation being derived.

via_relation: String

Relation walked from the object to its parent.

on_relation: String

Relation required on the parent.

object_type: Option<String>

Object type this rule is restricted to, or None for any type.

Trait Implementations

impl Clone for Rewrite

fn clone(&self) -> Rewrite

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Rewrite

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

Formats the value using the given formatter.

impl Eq for Rewrite

impl PartialEq for Rewrite

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Rewrite