Enum preserves::error::Error

pub enum Error {
    Io(Error),
    Message(String),
    InvalidUnicodeScalar(u32),
    NumberOutOfRange(BigInt),
    CannotDeserializeAny,
    MissingCloseDelimiter,
    MissingItem,
    Expected(ExpectedKind, Received),
    // some variants omitted
}

Representation of parse, deserialization, and other conversion errors.

Variants

Io(Error)

Generic IO error.

Message(String)

Generic message for the user.

InvalidUnicodeScalar(u32)

Invalid unicode scalar n found during interpretation of a <UnicodeScalar n> record as a Rust char.

NumberOutOfRange(BigInt)

Preserves supports arbitrary integers; when these are converted to specific Rust machine word types, sometimes they exceed the available range.

CannotDeserializeAny

Serde has limited support for deserializing free-form data; this error is signalled when one of the limits is hit.

MissingCloseDelimiter

Syntax error: missing closing delimiter (), ], }, > in text syntax; 0x84 in binary syntax; etc.)

MissingItem

Signalled when an expected term is not present.

Expected(ExpectedKind, Received)

Signalled when what was received did not match expectations.

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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 Error for Error

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

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

impl Error for Error

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 From<Error> for Error

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<InvalidTag> for Error

fn from(v: InvalidTag) -> Self

Converts to this type from the input type.