Struct Error 

pub struct Error {
    pub kind: ErrorKind,
    /* private fields */
}

An error with source location information.

Fields

kind: ErrorKind

The kind of error.

Implementations

impl Error

pub fn new(kind: ErrorKind) -> Self

Create a new error with the given kind.

pub fn with_span(kind: ErrorKind, span: Span) -> Self

Create a new error with source location.

pub fn with_context(self, context: impl Into<String>) -> Self

Add context to this error.

pub fn span(&self) -> Option<Span>

Get the span of this error, if any.

pub fn kind(&self) -> &ErrorKind

Get the error kind.

pub fn unexpected_char(c: char, pos: usize) -> Self

pub fn unexpected_token( expected: impl Into<String>, found: impl Into<String>, span: Span, ) -> Self

pub fn unexpected_eof(pos: usize) -> Self

pub fn expected_expression(span: Span) -> Self

pub fn expected_identifier(span: Span) -> Self

pub fn expected_keyword(keyword: impl Into<String>, span: Span) -> Self

pub fn invalid_syntax(msg: impl Into<String>, span: Span) -> Self

pub fn unsupported(feature: impl Into<String>, span: Span) -> Self

pub fn unterminated_string(span: Span) -> Self

pub fn unterminated_comment(span: Span) -> Self

pub fn invalid_escape(seq: impl Into<String>, span: Span) -> Self

pub fn invalid_number(num: impl Into<String>, span: Span) -> Self

pub fn analyzer(msg: impl Into<String>) -> Self

Create an analyzer error.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate 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)>

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.