Struct MacroError 

pub struct MacroError { /* private fields */ }

An error struct representing what went wrong during a macro call.

Implementations

impl MacroError

pub fn message(&self) -> &str

Returns the error message.

pub fn trace(&self) -> &[Vec<u8>]

Returns a traceback for the given error, in reverse order.

Trait Implementations

impl Clone for MacroError

fn clone(&self) -> MacroError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MacroError

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

Formats the value using the given formatter.

impl Display for MacroError

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

Formats the value using the given formatter.

impl Error for MacroError

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

fn from(value: &'static str) -> Self

Converts to this type from the input type.

impl From<FromUtf8Error> for MacroError

fn from(_value: FromUtf8Error) -> Self

Converts to this type from the input type.

impl From<String> for MacroError

fn from(value: String) -> Self

Converts to this type from the input type.

impl From<TryReserveError> for MacroError

fn from(_value: TryReserveError) -> Self

Converts to this type from the input type.

impl From<Utf8Error> for MacroError

fn from(_value: Utf8Error) -> Self

Converts to this type from the input type.

impl PartialEq for MacroError

fn eq(&self, other: &MacroError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for MacroError

impl StructuralPartialEq for MacroError