Enum Error 

pub enum Error {
    Merge(MergeError),
    Material(MaterialError),
    InvalidSigningKey,
    Truncated,
    TrailingBytes,
    UnsupportedVersion(u16),
    UnknownTag {
        field: &'static str,
        tag: u8,
    },
    Limit {
        field: &'static str,
        actual: usize,
        maximum: usize,
    },
    Utf8,
    Invalid {
        field: &'static str,
        rule: Rule,
    },
    CodeCharacter {
        offset: usize,
    },
    Checksum,
    Allocation,
}

A typed failure, preserving the field and the failed structural requirement.

Variants

Merge(MergeError)

Merge rejected a row change, written reference or decoded row state.

Material(MaterialError)

Crypto rejected encoded secret material.

InvalidSigningKey

Crypto rejected an invalid or weak Ed25519 signing key.

Truncated

More bytes were required to finish the object.

TrailingBytes

Bytes remained after the end of an object.

UnsupportedVersion(u16)

The object’s format version is not supported.

UnknownTag

A kind or variant tag is unknown.

Fields

field: &'static str

The field containing the tag.

tag: u8

The unrecognized tag.

Limit

A length exceeds the format’s bound.

Fields

field: &'static str

The field or resource whose bound was exceeded.

actual: usize

The declared or requested length.

maximum: usize

The largest accepted length.

Utf8

A string was not UTF-8.

Invalid

An object failed a structural check.

Fields

field: &'static str

The field that failed the check.

rule: Rule

The violated requirement.

CodeCharacter

A typed code contained a character outside its uppercase base32 alphabet.

Fields

offset: usize

The byte offset of the character.

Checksum

A typed code’s checksum did not match its contents.

Allocation

Memory could not be reserved within the format’s bounds.

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)>

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<Error> for FileError

fn from(error: Error) -> Self

Converts to this type from the input type.

impl From<FromUtf8Error> for Error

Text that isn’t UTF-8 is Utf8, wherever its first bad byte is.

fn from(_: FromUtf8Error) -> Self

Converts to this type from the input type.

impl From<MergeError> for Error

A merge check that failed while decoding is Merge.

fn from(error: MergeError) -> Self

Converts to this type from the input type.

impl From<TryReserveError> for Error

A failed reservation is Allocation. Its layout is not kept: the request is within the format’s own bounds, so only the memory itself was missing.

fn from(_: TryReserveError) -> Self

Converts to this type from the input type.

impl From<Utf8Error> for Error

Text that isn’t UTF-8 is Utf8, wherever its first bad byte is.

fn from(_: Utf8Error) -> Self

Converts to this type from the input type.

impl PartialEq for Error

fn eq(&self, other: &Error) -> 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 Error

impl StructuralPartialEq for Error