Struct ParseError 

pub struct ParseError {
    pub kind: ParseErrorKind,
    pub span: Span,
    pub context: Option<String>,
    pub hint: Option<String>,
}

A parse error with location information.

Fields

kind: ParseErrorKind

The kind of error.

span: Span

The span where the error occurred.

context: Option<String>

Optional context message.

hint: Option<String>

Optional hint for fixing the error.

Implementations

impl ParseError

pub const fn new(kind: ParseErrorKind, span: Span) -> Self

Create a new parse error.

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

Add context to this error.

pub fn with_hint(self, hint: impl Into<String>) -> Self

Add a hint for fixing this error.

pub const fn span(&self) -> (usize, usize)

Get the span of this error.

pub const fn kind_code(&self) -> u32

Get a numeric code for the error kind.

pub fn message(&self) -> String

Get the error message.

pub const fn label(&self) -> &str

Get a short label for the error.

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, f: &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