Struct failure::Context [−][src]
An error with context around it.
The context is intended to be a human-readable, user-facing explanation for the error that has occurred. The underlying error is not assumed to be end-user-relevant information.
The Display
impl for Context
only prints the human-readable context, while the
Debug
impl also prints the underlying error.
Methods
impl<D: Display + Send + Sync + 'static> Context<D>
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impl<D: Display + Send + Sync + 'static> Context<D>
pub fn new(context: D) -> Context<D>
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pub fn new(context: D) -> Context<D>
Creates a new context without an underlying error message.
ⓘImportant traits for &'a mut Rpub fn get_context(&self) -> &D
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pub fn get_context(&self) -> &D
Returns a reference to the context provided with this error.
Trait Implementations
impl<D: Display + Send + Sync + 'static> Fail for Context<D>
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impl<D: Display + Send + Sync + 'static> Fail for Context<D>
fn cause(&self) -> Option<&Fail>
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fn cause(&self) -> Option<&Fail>
Returns a reference to the underlying cause of this failure, if it is an error that wraps other errors. Read more
fn backtrace(&self) -> Option<&Backtrace>
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fn backtrace(&self) -> Option<&Backtrace>
Returns a reference to the Backtrace
carried by this failure, if it carries one. Read more
fn context<D>(self, context: D) -> Context<D> where
D: Display + Send + Sync + 'static,
Self: Sized,
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fn context<D>(self, context: D) -> Context<D> where
D: Display + Send + Sync + 'static,
Self: Sized,
Provides context for this failure. Read more
fn compat(self) -> Compat<Self> where
Self: Sized,
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fn compat(self) -> Compat<Self> where
Self: Sized,
Wraps this failure in a compatibility wrapper that implements std::error::Error
. Read more
ⓘImportant traits for Causes<'f>fn causes(&self) -> Causes where
Self: Sized,
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fn causes(&self) -> Causes where
Self: Sized,
Returns a iterator over the causes of this Fail
with itself as the first item and the root_cause
as the final item. Read more
fn root_cause(&self) -> &Fail where
Self: Sized,
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fn root_cause(&self) -> &Fail where
Self: Sized,
Returns the "root cause" of this Fail
- the last value in the cause chain which does not return an underlying cause
. Read more
impl<D: Display + Send + Sync + 'static> Debug for Context<D>
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impl<D: Display + Send + Sync + 'static> Debug for Context<D>
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl<D: Display + Send + Sync + 'static> Display for Context<D>
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impl<D: Display + Send + Sync + 'static> Display for Context<D>
fn fmt(&self, f: &mut Formatter) -> Result
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fn fmt(&self, f: &mut Formatter) -> Result
Formats the value using the given formatter. Read more
impl<D> From<D> for Context<D> where
D: Display + Send + Sync + 'static,
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impl<D> From<D> for Context<D> where
D: Display + Send + Sync + 'static,