Struct regex_automata::dfa::Error

pub struct Error { /* private fields */ }

An error that occurred during the construction of a DFA.

This error does not provide many introspection capabilities. There are generally only two things you can do with it:

• Obtain a human readable message via its std::fmt::Display impl.
• Access an underlying [nfa::thompson::Error] type from its source method via the std::error::Error trait. This error only occurs when using convenience routines for building a DFA directly from a pattern string.

When the std feature is enabled, this implements the std::error::Error trait.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Error for Error

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

The lower-level source of this error, if any.

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

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

Returns a stack backtrace, if available, of where this error occurred.

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