Struct fm::FMatchError

pub struct FMatchError { /* fields omitted */ }

An error indicating a failed match. The pattern and text are copied in so that the error isn't tied to their lifetimes.

Implementations

impl FMatchError

pub fn ptn_line_off(&self) -> usize

pub fn text_line_off(&self) -> usize

Trait Implementations

impl Debug for FMatchError

A short error message. We don't reuse the longer message from Display as a Rust panic uses Debug and doesn't interpret formatting characters when printing the panic message.

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

Formats the value using the given formatter.

impl Display for FMatchError

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

Formats the value using the given formatter.

impl Error for FMatchError

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()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

fn cause(&self) -> Option<&dyn Error>

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl PartialEq<FMatchError> for FMatchError

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

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

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

This method tests for !=.

impl StructuralPartialEq for FMatchError