Enum TryFallback 

pub enum TryFallback {
    ElseClause(ElseClause),
    ExceptDo(ExceptDo),
}

The typed TryFallback syntax category.

Variants

ElseClause(ElseClause)

The ElseClause syntax alternative.

ExceptDo(ExceptDo)

The ExceptDo syntax alternative.

Trait Implementations

impl Debug for TryFallback

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

Formats the value using the given formatter.

impl From<ElseClause> for TryFallback

fn from(value: ElseClause) -> Self

Converts to this type from the input type.

impl From<ExceptDo> for TryFallback

fn from(value: ExceptDo) -> Self

Converts to this type from the input type.

impl Lex for TryFallback

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<N> Migrate<N> for TryFallback

where N: ExternalCstNode,

fn matches(node: &N) -> bool

Reports whether node can migrate this typed value.

fn migrate(node: N) -> Result<Self, MigrateError>

Converts a matching external node into typed syntax.

impl PrettyTree for TryFallback

fn pretty_tree(&self) -> PrettyNode

Builds the presentation node for this syntax value.

impl Spanned for TryFallback

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.