Struct flowcore::errors::Error

pub struct Error(pub ErrorKind, _);

The Error type.

This tuple struct is made of two elements:

• an ErrorKind which is used to determine the type of the error.
• An internal State, not meant for direct use outside of error_chain internals, containing:
  • a backtrace, generated when the error is created.
  • an error chain, used for the implementation of Error::cause().

Tuple Fields

0: ErrorKind

The kind of the error.

Implementations

impl Error

pub fn from_kind(kind: ErrorKind) -> Error

Constructs an error from a kind, and generates a backtrace.

pub fn with_chain<E, K>(error: E, kind: K) -> Errorwhere E: Error + Send + 'static, K: Into<ErrorKind>,

Constructs a chained error from another error and a kind, and generates a backtrace.

pub fn with_boxed_chain<K>(error: Box<dyn Error + Send>, kind: K) -> Errorwhere K: Into<ErrorKind>,

Construct a chained error from another boxed error and a kind, and generates a backtrace

pub fn kind(&self) -> &ErrorKind

Returns the kind of the error.

pub fn iter(&self) -> Iter<'_>

Iterates over the error chain.

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

Returns the backtrace associated with this error.

pub fn chain_err<F, EK>(self, error: F) -> Errorwhere F: FnOnce() -> EK, EK: Into<ErrorKind>,

Extends the error chain with a new entry.

pub fn description(&self) -> &str

A short description of the error. This method is identical to Error::description()

Trait Implementations

impl ChainedError for Error

type ErrorKind = ErrorKind

Associated kind type.

fn from_kind(kind: Self::ErrorKind) -> Self

Constructs an error from a kind, and generates a backtrace.

fn with_chain<E, K>(error: E, kind: K) -> Selfwhere E: Error + Send + 'static, K: Into<Self::ErrorKind>,

Constructs a chained error from another error and a kind, and generates a backtrace.

fn kind(&self) -> &Self::ErrorKind

Returns the kind of the error.

fn iter(&self) -> Iter<'_>

Iterates over the error chain.

fn chain_err<F, EK>(self, error: F) -> Selfwhere F: FnOnce() -> EK, EK: Into<ErrorKind>,

Extends the error chain with a new entry.

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

Returns the backtrace associated with this error.

fn display_chain<'a>(&'a self) -> DisplayChain<'a, Self>

Returns an object which implements Display for printing the full context of this error.

impl Clone for Error

We want to clone Job, which contains Result which contains Error, but can’t just derive it as it is generated by the error_chain!() macro, so we implement it manually

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Error

fn deserialize<D>(deserializer: D) -> Result<Error, D::Error>where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

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

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

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<'a> From<&'a str> for Error

fn from(s: &'a str) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<Error> for Error

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<Error> for ErrorKind

fn from(e: Error) -> Self

Converts to this type from the input type.

impl From<ErrorKind> for Error

fn from(e: ErrorKind) -> Self

Converts to this type from the input type.

impl From<ParseError> for Error

fn from(e: ParseError) -> Self

Converts to this type from the input type.

impl From<String> for Error

fn from(s: String) -> Self

Converts to this type from the input type.

impl Serialize for Error

In order to send Jobs, containing Results and hence Errors, back and fore between the Client and the Server it must implement Serialize and Deserialize - but we can’t derive it as the structs are declared from the error_chain!() macro. So we have to implement them.

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>where S: Serializer,

Serialize this value into the given Serde serializer.