Struct NeuErr 

pub struct NeuErr(/* private fields */);

Generic rich error type for use within Results, for libraries and applications.

Add human context information, including code locations, via the context method. Attach machine context information via the attach and attach_override methods.

Error Formatting

The normal Debug implementation ("{err:?}") will print the error with multi-line formatting, exactly how Display is doing it. The alternate Debug implementation ("{err:#?}") will show the pretty-printed usual debug representation of the internal types.

When using the Display implementation, the normal implementation ("{err}") will use multi-line formatting. You can use the alternate format ({err:#}) to get a compact single-line version. instead of multi-line formatted.

Implementations

impl NeuErr

pub fn new<C>(context: C) -> Self

where C: Into<Cow<'static, str>>,

Create new error.

pub fn new_with_source<C, E>(context: C, source: E) -> Self

where C: Into<Cow<'static, str>>, E: ErrorSendSync + 'static,

Create new error from source error.

pub fn from_source<E>(source: E) -> Self

where E: ErrorSendSync + 'static,

Convert source error.

pub fn context<C>(self, context: C) -> Self

where C: Into<Cow<'static, str>>,

Add human context to the error.

pub fn attach<C>(self, context: C) -> Self

where C: AnyDebugSendSync + 'static,

Add machine context to the error.

This will not override existing attachments. If you want to replace and override any existing attachments of the same type, use attach_override instead.

pub fn attach_override<C>(self, context: C) -> Self

where C: AnyDebugSendSync + 'static,

Set machine context in the error.

This will override existing attachments of the same type. If you want to add attachments of the same type, use attach instead.

pub fn attachments<C>(&self) -> impl Iterator<Item = &C>

where C: AnyDebugSendSync + 'static,

Get an iterator over the machine context attachments of the given type.

pub fn attachment<C>(&self) -> Option<&C>

where C: AnyDebugSendSync + 'static,

Get the machine context attachment of the given type.

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

Get the source error.

pub fn into_error(self) -> NeuErrImpl

Unwrap this error into a NeuErrImpl that implements Error. Note however, that it does not offer all of the functionality and might be unwieldy for other general purposes than interfacing with other error types.

Trait Implementations

impl AsRef<dyn Error> for NeuErr

fn as_ref(&self) -> &(dyn Error + 'static)

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<dyn Error + Send> for NeuErr

Available on crate feature send only.

fn as_ref(&self) -> &(dyn Error + Send + 'static)

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<dyn Error + Send + Sync> for NeuErr

Available on crate features send and sync only.

fn as_ref(&self) -> &(dyn Error + Send + Sync + 'static)

Converts this type into a shared reference of the (usually inferred) input type.

impl Debug for NeuErr

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

Formats the value using the given formatter.

impl Default for NeuErr

fn default() -> NeuErr

Returns the “default value” for a type.

impl Display for NeuErr

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

Formats the value using the given formatter.

impl<E> From<E> for NeuErr

where E: ErrorSendSync + 'static,

fn from(err: E) -> Self

Converts to this type from the input type.

impl From<NeuErr> for Box<dyn Error>

fn from(this: NeuErr) -> Self

Converts to this type from the input type.

impl From<NeuErr> for Box<dyn Error + Send>

Available on crate feature send only.

fn from(this: NeuErr) -> Self

Converts to this type from the input type.

impl From<NeuErr> for Box<dyn Error + Send + Sync>

Available on crate features send and sync only.

fn from(this: NeuErr) -> Self

Converts to this type from the input type.

impl From<NeuErr> for NeuErrImpl

fn from(err: NeuErr) -> Self

Converts to this type from the input type.

impl Termination for NeuErr

Available on crate feature std only.

fn report(self) -> ExitCode

Is called to get the representation of the value as status code. This status code is returned to the operating system.