Trait error_chain::ChainedError [−] [src]

pub trait ChainedError: Error + Send + Sync + 'static {
    type ErrorKind;
    fn from_kind(kind: Self::ErrorKind) -> Self
    where
        Self: Sized;
    fn with_chain<E, K>(error: E, kind: K) -> Self
    where
        Self: Sized,
        E: Error + Send + Sync + 'static,
        K: Into<Self::ErrorKind>;
    fn kind(&self) -> &Self::ErrorKind;
    fn iter(&self) -> Iter;
    fn backtrace(&self) -> Option<&Backtrace>;
    fn chain_err<F, EK>(self, error: F) -> Self
    where
        F: FnOnce() -> EK,
        EK: Into<Self::ErrorKind>;

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

This trait is implemented on all the errors generated by the error_chain macro.

Associated Types

`type ErrorKind`

Associated kind type.

Required Methods

`fn from_kind(kind: Self::ErrorKind) -> Self where Self: Sized,`

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

`fn with_chain<E, K>(error: E, kind: K) -> Self where Self: Sized, E: Error + Send + Sync + '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.

Important traits for Iter<'a>

impl<'a> Iterator for Iter<'a> type Item = &'a Error;

`fn iter(&self) -> Iter`

Iterates over the error chain.

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

Returns the backtrace associated with this error.

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

Extends the error chain with a new entry.

Provided Methods

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

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

The full cause chain and backtrace, if present, will be printed.

Implementors

impl ChainedError for error_chain::example_generated::inner::Error type ErrorKind = ErrorKind;
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impl ChainedError for error_chain::example_generated::Error type ErrorKind = ErrorKind;
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