Struct grep_matcher::NoError

pub struct NoError(_);

NoError provides an error type for matchers that never produce errors.

This error type implements the std::error::Error and fmt::Display traits for use in matcher implementations that can never produce errors.

The fmt::Debug and fmt::Display impls for this type panics.

Trait Implementations

impl Debug for NoError

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

Formats the value using the given formatter.

impl Display for NoError

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

Formats the value using the given formatter.

impl Error for NoError

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, demand: &mut Demand<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type based access to context intended for error reports.

impl From<NoError> for Error

fn from(_: NoError) -> Error

Converts to this type from the input type.

impl PartialEq<NoError> for NoError

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Eq for NoError

impl StructuralEq for NoError

impl StructuralPartialEq for NoError