Enum cedar_policy::TypeErrorKind

#[non_exhaustive]
pub enum TypeErrorKind {
    UnexpectedType(UnexpectedType),
    IncompatibleTypes(IncompatibleTypes),
    UnsafeAttributeAccess(UnsafeAttributeAccess),
    UnsafeOptionalAttributeAccess(UnsafeOptionalAttributeAccess),
    ImpossiblePolicy,
    UndefinedFunction(UndefinedFunction),
    MultiplyDefinedFunction(MultiplyDefinedFunction),
    WrongNumberArguments(WrongNumberArguments),
    WrongCallStyle(WrongCallStyle),
    FunctionArgumentValidationError(FunctionArgumentValidationError),
    TypesMustMatch(TypesMustMatch),
    EmptySetForbidden,
    NonLitExtConstructor,
}

Represents the different kinds of type errors and contains information specific to that type error kind.

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.

UnexpectedType(UnexpectedType)

The typechecker expected to see a subtype of one of the types in expected, but saw actual.

IncompatibleTypes(IncompatibleTypes)

The typechecker could not compute a least upper bound for types.

UnsafeAttributeAccess(UnsafeAttributeAccess)

The typechecker detected an access to a record or entity attribute that it could not statically guarantee would be present.

UnsafeOptionalAttributeAccess(UnsafeOptionalAttributeAccess)

The typechecker could not conclude that an access to an optional attribute was safe.

ImpossiblePolicy

The typechecker found that a policy condition will always evaluate to false.

UndefinedFunction(UndefinedFunction)

Undefined extension function.

MultiplyDefinedFunction(MultiplyDefinedFunction)

Multiply defined extension function.

WrongNumberArguments(WrongNumberArguments)

Incorrect number of arguments in an extension function application.

WrongCallStyle(WrongCallStyle)

Incorrect call style in an extension function application.

FunctionArgumentValidationError(FunctionArgumentValidationError)

Error returned by custom extension function argument validation

TypesMustMatch(TypesMustMatch)

EmptySetForbidden

NonLitExtConstructor

Trait Implementations

impl Debug for TypeErrorKind

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

Formats the value using the given formatter.

impl Display for TypeErrorKind

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

Formats the value using the given formatter.

impl Error for TypeErrorKind

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 Hash for TypeErrorKind

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

where __H: Hasher,

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 TypeErrorKind

fn eq(&self, other: &TypeErrorKind) -> 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 Eq for TypeErrorKind

impl StructuralPartialEq for TypeErrorKind