Enum PolicyError 

#[non_exhaustive]
pub enum PolicyError {
    ParseError(String),
    EvalError(String),
    RequestValidationError(String),
    ContextError(String),
    EntityError(String),
    InvalidFormat(String),
    EntityAttrError(String),
}

Policy evaluation and validation errors.

Variants correspond to Cedar parse/eval errors and library validation errors. Call sites attach human-friendly context where possible. For example, EntityAttrError wraps attribute access failures.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

ParseError(String)

Failed to parse Cedar policy text.

EvalError(String)

Error during policy evaluation.

RequestValidationError(String)

Request validation failed (invalid principals, resources, or actions).

ContextError(String)

Context creation error during request processing.

EntityError(String)

Error creating or manipulating Cedar entities.

InvalidFormat(String)

Invalid format for a Cedar construct (string parsing failure).

EntityAttrError(String)

Entity attribute evaluation or access error.

Trait Implementations

impl Debug for PolicyError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PolicyError

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for PolicyError

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

Formats the value using the given formatter.

impl Error for PolicyError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl From<ContextCreationError> for PolicyError

fn from(err: ContextCreationError) -> Self

Converts to this type from the input type.

impl From<EntitiesError> for PolicyError

fn from(err: EntitiesError) -> Self

Converts to this type from the input type.

impl From<EntityAttrEvaluationError> for PolicyError

fn from(err: EntityAttrEvaluationError) -> Self

Converts to this type from the input type.

impl From<ParseErrors> for PolicyError

fn from(err: ParseErrors) -> Self

Converts to this type from the input type.

impl From<RequestValidationError> for PolicyError

fn from(err: RequestValidationError) -> Self

Converts to this type from the input type.

impl Serialize for PolicyError

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

where __S: Serializer,

Serialize this value into the given Serde serializer.