Struct IdemGuard 

pub struct IdemGuard { /* private fields */ }

The right to perform one unreplayable side effect, once.

A guard exists only because claim put its key into a seen set, and the entrance to every effect that cannot be replayed — decrypting, billing, outward delivery (8.2) — asks for one by reference. That turns “judge duplicates before you act” from a sentence in a comment into something the compiler checks: an entrance that wants a guard cannot be called by a caller that never claimed.

Implementations

impl IdemGuard

pub fn key(&self) -> &IdemKey

The key this guard was claimed under, for the record the effect writes.

Trait Implementations

impl Debug for IdemGuard

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

Formats the value using the given formatter.

impl Eq for IdemGuard

impl PartialEq for IdemGuard

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for IdemGuard