fn maybe_span(&self) -> Option<Span>[src]impl HasFallibleSpan for bool[src]fn maybe_span(&self) -> Option<Span>[src]impl HasFallibleSpan for ()[src]fn maybe_span(&self) -> Option<Span>[src]impl HasFallibleSpan for Option<Span>[src]fn maybe_span(&self) -> Option<Span>[src]impl<T> HasFallibleSpan for Option<Spanned<T>>[src]fn maybe_span(&self) -> Option<Span>[src]impl<T> HasFallibleSpan for Option<Tagged<T>>[src]fn maybe_span(&self) -> Option<Span>[src]