Enum ParseError 

pub enum ParseError {
    DanglingBackslash,
    DanglingString,
    UnrecognizedEscape(String),
}

A result of a failed command line parse.

Most of these errors can be resolved with additional user input. The needs_continuation method is there to help. See the module-level documentation for more information.

Variants

DanglingBackslash

The command line ended with an unescaped backslash.

DanglingString

A string was still open when the command line ended.

UnrecognizedEscape(String)

There was an unrecognized backslash escape sequence.

Implementations

impl ParseError

pub fn needs_continuation(&self) -> bool

Returns true if this kind of ParseError will be resolved if the user provides more input.

Trait Implementations

impl Clone for ParseError

fn clone(&self) -> ParseError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParseError

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

Formats the value using the given formatter.

impl Display for ParseError

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

Formats the value using the given formatter.

impl Error for ParseError

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 PartialEq for ParseError

fn eq(&self, other: &ParseError) -> 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 ParseError

impl StructuralPartialEq for ParseError