Enum prometheus::Error

pub enum Error {
    AlreadyReg,
    InconsistentCardinality(usize, usize),
    Msg(String),
    Io(IoError),
    Protobuf(ProtobufError),
}

The error types for prometheus.

Variants

AlreadyReg

A duplicate metric collector has already been registered.

InconsistentCardinality(usize, usize)

The label cardinality was inconsistent.

Msg(String)

An error message which is only a string.

Io(IoError)

An error containing a [std::io::Error].

Protobuf(ProtobufError)

An error containing a [protobuf::Error].

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, fmt: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Error for Error

fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

fn backtrace(&self) -> Option<&Backtrace>

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

impl From<Error> for Error

fn from(err: IoError) -> Error

Performs the conversion.

impl From<ProtobufError> for Error

fn from(err: ProtobufError) -> Error

Performs the conversion.