Enum Error

pub enum Error<E> {
    FloatingPointUnsupported,
    TooManyVariants {
        enum_name: &'static str,
        variant_name: &'static str,
        variant_index: u32,
    },
    LengthNeeded,
    TypeMustBeKnown,
    ExpectedBoolean {
        found: u8,
    },
    InvalidCharacter {
        found: u32,
    },
    CollectionTooLargeToSerialize {
        len: usize,
    },
    CollectionTooLargeToDeserialize,
    InvalidUnicode(Utf8Error),
    InvalidOption {
        found_discriminant: u8,
    },
    Io(E),
    Other(OtherError),
}

Serialization errors

Variants

FloatingPointUnsupported

SCALE does not specify how to serialize floating point values

TooManyVariants

SCALE limits enums to 255 variants

Fields

enum_name: &'static str

variant_name: &'static str

variant_index: u32

LengthNeeded

SCALE requires knowing the length of collections

TypeMustBeKnown

SCALE requires knowing the type of the data being deserialized

ExpectedBoolean

A boolean value (0 or 1) was expected but another byte was found

Fields

found: u8

InvalidCharacter

Invalid character found. Characters must be UTF-32 code points.

Fields

found: u32

CollectionTooLargeToSerialize

This implementation limits collections to 2^64 elements

Fields

len: usize

CollectionTooLargeToDeserialize

This implementation limits collections to 2^64 elements

InvalidUnicode(Utf8Error)

Invalid Unicode was found in a string

InvalidOption

An option was expected but the discriminant is invalid

Fields

found_discriminant: u8

Io(E)

I/O error from the underlying reader or writer

Other(OtherError)

Other error the serializer or deserializer might encounter

Trait Implementations

impl<E: Debug> Debug for Error<E>

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

Formats the value using the given formatter.

impl<E: Display> Display for Error<E>

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

Formats the value using the given formatter.

impl<E: Debug + Display> Error for Error<E>

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<E: Debug + Display> Error for Error<E>

fn custom<T: Display>(msg: T) -> Self

Used when a Serialize implementation encounters any error while serializing a type.

impl<E: Debug + Display> Error for Error<E>

fn custom<T: Display>(msg: T) -> Self

Raised when there is general error when deserializing a type.

fn invalid_type(unexp: Unexpected<'_>, exp: &dyn Expected) -> Self

Raised when a Deserialize receives a type different from what it was expecting.

fn invalid_value(unexp: Unexpected<'_>, exp: &dyn Expected) -> Self

Raised when a Deserialize receives a value of the right type but that is wrong for some other reason.

fn invalid_length(len: usize, exp: &dyn Expected) -> Self

Raised when deserializing a sequence or map and the input data contains too many or too few elements.

fn unknown_variant(variant: &str, expected: &'static [&'static str]) -> Self

Raised when a Deserialize enum type received a variant with an unrecognized name.

fn unknown_field(field: &str, expected: &'static [&'static str]) -> Self

Raised when a Deserialize struct type received a field with an unrecognized name.

fn missing_field(field: &'static str) -> Self

Raised when a Deserialize struct type expected to receive a required field with a particular name but that field was not present in the input.

fn duplicate_field(field: &'static str) -> Self

Raised when a Deserialize struct type received more than one of the same field.

impl<E> From<E> for Error<E>

fn from(e: E) -> Self

Converts to this type from the input type.