Enum ResourceScope 

pub enum ResourceScope {
    Graph,
    Branch(String),
    TargetBranch(String),
    BranchTransition {
        source: String,
        target: String,
    },
}

Resource scope for a policy decision. Branch-grained on purpose — per-type / per-row granularity is owned by the query-layer (MR-725).

The variants map to today’s (branch, target_branch) pair convention in PolicyRequest. Each writer in the engine picks the variant that matches how the existing HTTP-layer Cedar policies were written, so the engine-layer enforce() call and the HTTP-layer authorize_request() call evaluate the same decision.

Variants

Graph

Action applies to the graph as a whole (no branch context). Used by graph-level ops if any ever go through enforcement. Maps to (branch: None, target_branch: None).

Branch(String)

Action operates on a single branch — reading from it, writing to it, mutating it. Maps to (branch: Some(X), target_branch: None). Used by Read, Export, Change.

TargetBranch(String)

Action targets a branch as its destination/effect. The action modifies this branch (SchemaApply applies the new schema to it) or removes it (BranchDelete). Maps to (branch: None, target_branch: Some(X)). Used by SchemaApply, BranchDelete.

BranchTransition

Action transitions between two branches. source is the branch being read-from / merged-from / forked-from; target is the destination. Maps to (branch: Some(source), target_branch: Some(target)). Used by BranchCreate (from→new), BranchMerge (source→target).

Fields

source: String

target: String

Implementations

impl ResourceScope

pub fn to_branch_pair(&self) -> (Option<&str>, Option<&str>)

Lower the scope into the (branch, target_branch) pair carried by today’s PolicyRequest. The mapping preserves the HTTP-layer’s existing scope conventions so Cedar policies don’t have to be rewritten when engine-layer enforcement is enabled.

Trait Implementations

impl Clone for ResourceScope

fn clone(&self) -> ResourceScope

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ResourceScope

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

Formats the value using the given formatter.

impl PartialEq for ResourceScope

fn eq(&self, other: &ResourceScope) -> 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 Eq for ResourceScope

impl StructuralPartialEq for ResourceScope