Struct Error 

pub struct Error { /* private fields */ }

The error struct returned by all fastmetrics functions.

Implementations

impl Error

pub fn new(kind: ErrorKind, message: impl Into<Cow<'static, str>>) -> Self

Create a new Error with error kind and message.

pub fn unexpected(message: impl Into<Cow<'static, str>>) -> Self

Create a new unexpected Error with message.

pub fn unsupported(message: impl Into<Cow<'static, str>>) -> Self

Create a new unsupported Error with message.

pub fn invalid(message: impl Into<Cow<'static, str>>) -> Self

Create a new invalid Error with message.

pub fn duplicated(message: impl Into<Cow<'static, str>>) -> Self

Create a new duplicated Error with message.

pub fn with_context(self, key: &'static str, value: impl ToString) -> Self

Add more context in error.

pub fn set_source(self, src: impl Into<Error>) -> Self

Set source for error.

Notes

If the source has been set, we will raise a panic here.

pub fn kind(&self) -> ErrorKind

Returns the kind of the error.

pub fn message(&self) -> &str

Returns the message of the 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, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

fn source(&self) -> Option<&(dyn StdError + '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.