Struct PolicySnapshot 

pub struct PolicySnapshot { /* private fields */ }

Precomputed per-extension capability decision table for O(1) hostcall authorization.

Built once from an ExtensionPolicy at dispatcher creation time; all subsequent lookups are constant-time array reads. For unknown capabilities not in ALL_CAPABILITIES, falls back to the original evaluate_for() path.

Implementations

impl PolicySnapshot

pub fn compile(policy: &ExtensionPolicy) -> Self

Compile a snapshot from the given policy.

Precomputes decisions for every known capability in both the global context and each per-extension override.

pub fn lookup( &self, capability: &str, extension_id: Option<&str>, ) -> PolicyCheck

O(1) capability lookup. Returns a PolicyCheck for the given capability and optional extension context.

Known capabilities (read, write, http, etc.) are resolved from the precomputed table. Unknown capabilities fall back to evaluate_for().

Trait Implementations

impl Clone for PolicySnapshot

fn clone(&self) -> PolicySnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PolicySnapshot

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

Formats the value using the given formatter.