Struct InvalidMapKeyType

pub struct InvalidMapKeyType(pub ValueType);

Error type for invalid map key type conversions.

InvalidMapKeyType is returned when attempting to convert a ValueType to a MapKeyType fails because the type is not a valid map key type. According to the CEL specification, only basic comparable types (bool, int, uint, string) can be used as map keys.

Examples

use cel_cxx::{ValueType, ListType, MapKeyType, InvalidMapKeyType};

// Valid map key type
let string_type = ValueType::String;
let map_key_type = MapKeyType::try_from(string_type).unwrap();
assert_eq!(map_key_type, MapKeyType::String);

// Invalid map key type
let list_type = ValueType::List(ListType::new(ValueType::Int));
let result = MapKeyType::try_from(list_type);
assert!(result.is_err());

Tuple Fields

0: ValueType

Implementations

impl InvalidMapKeyType

pub fn new(ty: ValueType) -> Self

Creates a new InvalidMapKeyType error.

Parameters

• ty: The type that failed to convert to a map key type

Returns

New InvalidMapKeyType instance

Trait Implementations

impl Clone for InvalidMapKeyType

fn clone(&self) -> InvalidMapKeyType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for InvalidMapKeyType

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

Formats the value using the given formatter.

impl Display for InvalidMapKeyType

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

Formats the value using the given formatter.

impl Error for InvalidMapKeyType

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<InvalidMapKeyType> for Error

fn from(error: InvalidMapKeyType) -> Self

Converts to this type from the input type.