Enum proc_macro::Delimiter
1.29.0 · source · [−]pub enum Delimiter {
Parenthesis,
Brace,
Bracket,
None,
}
Expand description
Describes how a sequence of token trees is delimited.
Variants
Parenthesis
( ... )
Brace
{ ... }
Bracket
[ ... ]
None
Ø ... Ø
An invisible delimiter, that may, for example, appear around tokens coming from a
“macro variable” $var
. It is important to preserve operator priorities in cases like
$var * 3
where $var
is 1 + 2
.
Invisible delimiters might not survive roundtrip of a token stream through a string.
Trait Implementations
impl Copy for Delimiter
impl Eq for Delimiter
impl StructuralEq for Delimiter
impl StructuralPartialEq for Delimiter
Auto Trait Implementations
impl RefUnwindSafe for Delimiter
impl Send for Delimiter
impl Sync for Delimiter
impl Unpin for Delimiter
impl UnwindSafe for Delimiter
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more