Struct Delimiter 

pub struct Delimiter {
    pub kind: DelimiterKind,
    pub spans: DoubleSpan,
    /* private fields */
}

Type-erased delimiter data stored by a raw TokenGroup.

Fields

kind: DelimiterKind

The delimiter family.

spans: DoubleSpan

The opening and closing source spans.

Implementations

impl Delimiter

pub fn new(kind: DelimiterKind, spans: DoubleSpan) -> Self

Creates type-erased delimiter data.

pub fn opening_span(&self) -> Span

Returns the real span of the opening bracket.

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

Returns the real span of the closing bracket.

pub fn is_closed(&self) -> bool

Reports whether the closing delimiter was present in source.

Trait Implementations

impl Clone for Delimiter

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Delimiter

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

Formats the value using the given formatter.

impl DelimiterValue for Delimiter

fn from_delimiter(delimiter: Delimiter) -> Option<Self>

Converts raw delimiter data into this representation.

fn delimiter(&self) -> Delimiter

Returns the type-erased delimiter data.

fn expected() -> &'static str

Describes the accepted delimiter family in parse diagnostics.

fn opening_trivia(&self) -> &TrailingTrivia

Borrows the non-space trivia following the opening delimiter.

fn opening_trivia_mut(&mut self) -> &mut TrailingTrivia

Mutably borrows the non-space trivia following the opening delimiter.

fn closing_trivia(&self) -> &TrailingTrivia

Borrows the non-space trivia following the closing delimiter.

fn closing_trivia_mut(&mut self) -> &mut TrailingTrivia

Mutably borrows the non-space trivia following the closing delimiter.

fn surround(&self, output: &mut TokenStream, contents: TokenStream)

Emits contents surrounded by this delimiter.

impl Display for Delimiter

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

Formats the value using the given formatter.

impl Eq for Delimiter

impl Lex for Delimiter

fn to_tokens(&self, output: &mut TokenStream)

Appends this value’s token trees to output.

fn to_token_stream(&self) -> TokenStream

Emits this value into a fresh token stream.

fn to_m2(&self) -> String

Renders this value as normalized Macaulay2 source.

impl Parse for Delimiter

fn parse(input: &mut ParseStream) -> Result<Self, TokenParseError>

Consumes this value from input.

impl PartialEq for Delimiter

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

Equality operator ==.

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

Inequality operator !=.

impl Spanned for Delimiter

fn try_span(&self) -> Option<Span>

Returns the smallest span covering this value, when its constituents share one source snapshot.

fn span(&self) -> Span

Returns the smallest span covering this value.

fn expect_span(&self) -> Span

Returns this value’s span when one source snapshot covers it.

impl StructuralPartialEq for Delimiter