Enum DataReaderError 

pub enum DataReaderError {
    Io(Error),
    Parse(String),
    Format(String),
}

Why a dataset file could not be read.

Variants

Io(Error)

The file could not be read.

Parse(String)

A value is not a number, or a label is not a non-negative integer.

Format(String)

The file’s shape is wrong: ragged rows, no rows, or invalid labels.

Trait Implementations

impl Debug for DataReaderError

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

Formats the value using the given formatter.

impl Display for DataReaderError

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

Formats the value using the given formatter.

impl Error for DataReaderError

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 DataReaderError

fn from(err: IoError) -> Self

Converts to this type from the input type.