Enum Permission

pub enum Permission {
    Forbid,
    Deny,
    Allow,
}

Allow, deny or forbid using a resource or performing an action.

Variants

Forbid

Fail outright when trying to load a resource or performing an action.

Deny

Ignore resources or try to avoid performing an operation.

Allow

Allow loading a resource or performing an action.

Implementations

impl Permission

pub fn is_allowed(&self) -> bool

Return true if this instance is Permission::Allow.

pub fn check<R: Debug>(&self, resource: R) -> Result<Option<R>, Error<R>>

Check this permissions and produce a reply to indicate if the resource can be used and in which way.

Only if this permission is set to Allow will the resource be usable.

pub fn check_opt<R: Debug>(&self, resource: R) -> Option<R>

Like check(), but degenerates the type to an option to make it more useful in cases where Forbid shouldn’t abort the entire operation.

Trait Implementations

impl Clone for Permission

fn clone(&self) -> Permission

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Permission

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Permission

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Hash for Permission

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for Permission

fn cmp(&self, other: &Permission) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Permission

fn eq(&self, other: &Permission) -> 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 PartialOrd for Permission

fn partial_cmp(&self, other: &Permission) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for Permission

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for Permission

impl Eq for Permission

impl StructuralPartialEq for Permission