cedar_policy_core::ast

Enum PrincipalOrResourceConstraint

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pub enum PrincipalOrResourceConstraint {
    Any,
    In(EntityReference),
    Eq(EntityReference),
    Is(Arc<EntityType>),
    IsIn(Arc<EntityType>, EntityReference),
}
Expand description

Represents the constraints for principals and resources. Can either not constrain, or constrain via == or in for a single entity literal.

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Any

Unconstrained

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In(EntityReference)

Hierarchical constraint

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Eq(EntityReference)

Equality constraint

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Is(Arc<EntityType>)

Type constraint,

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IsIn(Arc<EntityType>, EntityReference)

Type constraint with a hierarchy constraint

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impl PrincipalOrResourceConstraint

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pub fn any() -> Self

Unconstrained.

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pub fn is_eq(euid: Arc<EntityUID>) -> Self

Constrained to equal a specific euid.

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pub fn is_eq_slot() -> Self

Constrained to equal a slot

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pub fn is_in_slot() -> Self

Constrained to be in a slot

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pub fn is_in(euid: Arc<EntityUID>) -> Self

Hierarchical constraint.

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pub fn is_entity_type_in_slot(entity_type: Arc<EntityType>) -> Self

Type constraint additionally constrained to be in a slot.

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pub fn is_entity_type_in( entity_type: Arc<EntityType>, in_entity: Arc<EntityUID>, ) -> Self

Type constraint with a hierarchical constraint.

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pub fn is_entity_type(entity_type: Arc<EntityType>) -> Self

Type constraint, with no hierarchical constraint or slot.

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pub fn as_expr(&self, v: PrincipalOrResource) -> Expr

Turn the constraint into an expr

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  • v - The variable name to be used in the expression.
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pub fn display(&self, v: PrincipalOrResource) -> String

Pretty print the constraint

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  • v - The variable name to be used in the expression.
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pub fn get_euid(&self) -> Option<&Arc<EntityUID>>

Get the entity uid in this constraint or None if there are no uids in the constraint

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pub fn iter_entity_type_names(&self) -> impl Iterator<Item = &EntityType>

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

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impl Clone for PrincipalOrResourceConstraint

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fn clone(&self) -> PrincipalOrResourceConstraint

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for PrincipalOrResourceConstraint

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for PrincipalOrResourceConstraint

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl From<PrincipalOrResourceConstraint> for PrincipalConstraint

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fn from(constraint: PrincipalOrResourceConstraint) -> PrincipalConstraint

Converts to this type from the input type.
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impl From<PrincipalOrResourceConstraint> for ResourceConstraint

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fn from(constraint: PrincipalOrResourceConstraint) -> ResourceConstraint

Converts to this type from the input type.
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impl Hash for PrincipalOrResourceConstraint

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

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for PrincipalOrResourceConstraint

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

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for PrincipalOrResourceConstraint

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

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for PrincipalOrResourceConstraint

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

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

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

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

Serialize this value into the given Serde serializer. Read more
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impl TryFrom<PrincipalConstraint> for PrincipalOrResourceConstraint

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type Error = FromJsonError

The type returned in the event of a conversion error.
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fn try_from( constraint: PrincipalConstraint, ) -> Result<PrincipalOrResourceConstraint, Self::Error>

Performs the conversion.
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impl TryFrom<ResourceConstraint> for PrincipalOrResourceConstraint

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type Error = FromJsonError

The type returned in the event of a conversion error.
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fn try_from( constraint: ResourceConstraint, ) -> Result<PrincipalOrResourceConstraint, Self::Error>

Performs the conversion.
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impl Eq for PrincipalOrResourceConstraint

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impl StructuralPartialEq for PrincipalOrResourceConstraint

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut T)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,