Enum cedar_policy::extensions::ExtensionFunctionLookupError

pub enum ExtensionFunctionLookupError {
    FuncDoesNotExist {
        name: Name,
    },
    HasNoType {
        name: Name,
    },
    FuncMultiplyDefined {
        name: Name,
        num_defs: usize,
    },
    MultipleConstructorsSameSignature {
        return_type: Box<SchemaType>,
        arg_type: Box<SchemaType>,
    },
}

Errors thrown when looking up an extension function in Extensions.

Variants

FuncDoesNotExist

Fields

name: Name

Name of the function that doesn’t exist

Tried to call a function that doesn’t exist

HasNoType

Fields

name: Name

Name of the function that returns no type

Attempted to typecheck an expression that had no type

FuncMultiplyDefined

Fields

name: Name

Name of the function that is multiply defined

num_defs: usize

How many times that function is defined

Tried to call a function but it was defined multiple times (e.g., by multiple different extensions)

MultipleConstructorsSameSignature

Fields

return_type: Box<SchemaType>

return type of the shared constructor signature

arg_type: Box<SchemaType>

argument type of the shared constructor signature

Two extension constructors (in the same or different extensions) had exactly the same type signature. This is currently not allowed.

Trait Implementations

impl Clone for ExtensionFunctionLookupError

fn clone(&self) -> ExtensionFunctionLookupError

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ExtensionFunctionLookupError

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

Formats the value using the given formatter.

impl Display for ExtensionFunctionLookupError

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

Formats the value using the given formatter.

impl Error for ExtensionFunctionLookupError

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

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<ExtensionFunctionLookupError> for EvaluationError

fn from(err: ExtensionFunctionLookupError) -> EvaluationError

Converts to this type from the input type.

impl From<ExtensionFunctionLookupError> for EvaluationErrorKind

fn from(source: ExtensionFunctionLookupError) -> EvaluationErrorKind

Converts to this type from the input type.

impl PartialEq for ExtensionFunctionLookupError

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for ExtensionFunctionLookupError

impl StructuralEq for ExtensionFunctionLookupError

impl StructuralPartialEq for ExtensionFunctionLookupError