Enum Error

#[non_exhaustive]
pub enum Error {
    BadMagic {
        pos: u64,
        found: Box<dyn Any + Sync + Send>,
    },
    AssertFail {
        pos: u64,
        message: String,
    },
    Io(Error),
    Custom {
        pos: u64,
        err: Box<dyn Any + Sync + Send>,
    },
    NoVariantMatch {
        pos: u64,
    },
    EnumErrors {
        pos: u64,
        variant_errors: Vec<(&'static str, Error)>,
    },
}

An error while parsing a BinRead type

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

BadMagic

The magic value did not match the provided one

Fields

pos: u64

found: Box<dyn Any + Sync + Send>

AssertFail

The condition of an assertion without a custom type failed

Fields

pos: u64

message: String

Io(Error)

An error that occured while reading from, or seeking within, the reader

Custom

A custom error, most often given from the second value passed into an assert

Fields

pos: u64

err: Box<dyn Any + Sync + Send>

NoVariantMatch

No variant in the enum was successful in parsing the data

Fields

pos: u64

EnumErrors

Fields

pos: u64

variant_errors: Vec<(&'static str, Error)>

Implementations

impl Error

pub fn custom_err<T: Any>(&self) -> Option<&T>

Gets a custom error of type T from the Error. Returns None if the error type is not custom or if the contained error is not of the desired type.

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 Error

fn from(err: Error) -> Self

Converts to this type from the input type.