Enum cedar_policy_core::ast::ActionConstraint

pub enum ActionConstraint {
    Any,
    In(Vec<Arc<EntityUID>>),
    Eq(Arc<EntityUID>),
}

Constraint for action head variables. Action variables can be constrained to be in any variable in a list.

Variants

Any

Unconstrained

In(Vec<Arc<EntityUID>>)

Constrained to being in a list.

Eq(Arc<EntityUID>)

Constrained to equal a specific euid.

Implementations

impl ActionConstraint

pub fn any() -> Self

Unconstrained action.

pub fn is_in(euids: impl IntoIterator<Item = EntityUID>) -> Self

Action constrained to being in a list of euids.

pub fn is_eq(euid: EntityUID) -> Self

Action constrained to being equal to a euid.

pub fn as_expr(&self) -> Expr

Turn the constraint into an expression.

pub fn iter_euids(&self) -> impl Iterator<Item = &EntityUID>

Get an iterator over all of the entity uids in this constraint.

Trait Implementations

impl Clone for ActionConstraint

fn clone(&self) -> ActionConstraint

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ActionConstraint

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ActionConstraint

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ActionConstraint

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

Formats the value using the given formatter.

impl From<ActionConstraint> for ActionConstraint

fn from(constraint: ActionConstraint) -> ActionConstraint

Converts to this type from the input type.

impl Hash for ActionConstraint

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 PartialEq for ActionConstraint

fn eq(&self, other: &ActionConstraint) -> 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 Serialize for ActionConstraint

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<ActionConstraint> for ActionConstraint

type Error = EstToAstError

The type returned in the event of a conversion error.

fn try_from( constraint: ActionConstraint, ) -> Result<ActionConstraint, EstToAstError>

Performs the conversion.

impl Eq for ActionConstraint

impl StructuralPartialEq for ActionConstraint