pub enum NilSyntax {
Symbol,
Token,
EmptyList,
False,
}Expand description
How to print the special nil value.
Variants§
Symbol
Output a nil symbol.
Token
Output the #nil token.
EmptyList
Output the empty list.
False
Output a boolean false value.
Trait Implementations§
Auto Trait Implementations§
impl Freeze for NilSyntax
impl RefUnwindSafe for NilSyntax
impl Send for NilSyntax
impl Sync for NilSyntax
impl Unpin for NilSyntax
impl UnwindSafe for NilSyntax
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more