Struct DenyAll 

pub struct DenyAll;

A policy that denies every transition.

Use DenyAll to test that your runtime correctly handles policy denials. Every transition attempt will produce a LifecycleError::TransitionDenied.

Examples

use ready_active_safe::prelude::*;

let policy = DenyAll;
assert!(!policy.is_allowed(&"ready", &"active"));

let err = policy.check(&"ready", &"active").unwrap_err();
assert_eq!(err, "transition denied by policy");

Trait Implementations

impl Clone for DenyAll

fn clone(&self) -> DenyAll

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DenyAll

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

Formats the value using the given formatter.

impl PartialEq for DenyAll

fn eq(&self, other: &DenyAll) -> 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<M> Policy<M> for DenyAll

fn is_allowed(&self, _from: &M, _to: &M) -> bool

Returns true if transitioning from from to to is permitted.

fn check(&self, from: &M, to: &M) -> Result<(), &'static str>

Returns Ok(()) if the transition is allowed, or a reason string if denied.

impl Copy for DenyAll

impl Eq for DenyAll

impl StructuralPartialEq for DenyAll