Struct SyntaxErrorEvent 

#[non_exhaustive]
pub struct SyntaxErrorEvent<'a> {
    pub offending: Option<TokenView<'a>>,
    pub line: usize,
    pub column: usize,
    pub span: Option<Range<usize>>,
    pub message: &'a str,
    pub error: Option<&'a AntlrError>,
}

Structured context for one recognizer diagnostic.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

offending: Option<TokenView<'a>>

Token the diagnostic is anchored to, when one exists.

Lexer errors have no offending token because the failed match did not produce one.

line: usize

One-based input line where the diagnostic starts.

column: usize

Zero-based column within line where the diagnostic starts.

span: Option<Range<usize>>

Half-open UTF-8 byte span of the offending source text.

Custom streams and token sources that cannot resolve byte offsets leave this as None.

message: &'a str

ANTLR-compatible diagnostic message without the leading line/column.

error: Option<&'a AntlrError>

Recognition error that caused the diagnostic, when one exists.

Trait Implementations

impl<'a> Clone for SyntaxErrorEvent<'a>

fn clone(&self) -> SyntaxErrorEvent<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for SyntaxErrorEvent<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for SyntaxErrorEvent<'a>

impl<'a> From<&'a TokenSourceError> for SyntaxErrorEvent<'a>

fn from(error: &'a TokenSourceError) -> Self

Converts to this type from the input type.

impl<'a> PartialEq for SyntaxErrorEvent<'a>

fn eq(&self, other: &SyntaxErrorEvent<'a>) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl<'a> StructuralPartialEq for SyntaxErrorEvent<'a>