Struct ParseError

pub struct ParseError {
    pub error: ParseErrorKind,
    pub span: Span,
    pub level: Level,
}

A parse error encountered while parsing a MacroStream.

Fields

error: ParseErrorKind

span: Span

level: Level

Implementations

impl ParseError

pub fn new(span: Span, error: ParseErrorKind) -> ParseError

Create a new parse error with the given span and kind.

pub fn call_site(error: ParseErrorKind) -> ParseError

Create a new parse error with the given kind and the Span::call_site() span.

pub fn into_diagnostic(self) -> Diagnostic

Convert the error into a proc_macro_error::Diagnostic.

pub fn unexpected_end_of_input(&mut self, msg: &str)

Add a message to the error if it is an UnexpectedEndOfInput error.

Trait Implementations

impl Debug for ParseError

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

Formats the value using the given formatter.

impl Display for ParseError

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

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 From<ParseError> for MacrosError

fn from(error: ParseError) -> MacrosError

Converts to this type from the input type.