Enum ErrorCause

pub enum ErrorCause {
    Io(Rc<Error>),
    Syntax(SyntaxError),
}

Types of errors that may happen in parsing

Variants

Io(Rc<Error>)

Error in an underlying input function

Syntax(SyntaxError)

Syntax error

Implementations

impl ErrorCause

pub fn message(&self) -> Cow<'static, str>

Returns an error message describing the error cause.

pub fn label(&self) -> &'static str

Returns a label for annotating the error location.

pub fn related_location(&self) -> Option<(&Location, &'static str)>

Returns a location related with the error cause and a message describing the location.

Trait Implementations

impl Clone for ErrorCause

fn clone(&self) -> ErrorCause

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ErrorCause

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

Formats the value using the given formatter.

impl Display for ErrorCause

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

Formats the value using the given formatter.

impl Error for ErrorCause

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<Error> for ErrorCause

fn from(e: Error) -> ErrorCause

Converts to this type from the input type.

impl From<Rc<Error>> for ErrorCause

fn from(source: Rc<Error>) -> Self

Converts to this type from the input type.

impl From<SyntaxError> for ErrorCause

fn from(source: SyntaxError) -> Self

Converts to this type from the input type.

impl PartialEq for ErrorCause

fn eq(&self, other: &Self) -> 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.