Enum syn::TraitBoundModifier
source · pub enum TraitBoundModifier {
None,
Maybe(Question),
}
Expand description
A modifier on a trait bound, currently only used for the ?
in
?Sized
.
This type is available only if Syn is built with the "derive"
or "full"
feature.
Variants§
Trait Implementations§
source§impl Clone for TraitBoundModifier
impl Clone for TraitBoundModifier
source§impl Parse for TraitBoundModifier
impl Parse for TraitBoundModifier
fn parse(input: ParseStream<'_>) -> Result<Self>
source§impl ToTokens for TraitBoundModifier
impl ToTokens for TraitBoundModifier
source§fn to_tokens(&self, tokens: &mut TokenStream)
fn to_tokens(&self, tokens: &mut TokenStream)
source§fn to_token_stream(&self) -> TokenStream
fn to_token_stream(&self) -> TokenStream
source§fn into_token_stream(self) -> TokenStreamwhere
Self: Sized,
fn into_token_stream(self) -> TokenStreamwhere Self: Sized,
impl Copy for TraitBoundModifier
Auto Trait Implementations§
impl RefUnwindSafe for TraitBoundModifier
impl !Send for TraitBoundModifier
impl !Sync for TraitBoundModifier
impl Unpin for TraitBoundModifier
impl UnwindSafe for TraitBoundModifier
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
source§impl<T> Spanned for Twhere
T: Spanned + ?Sized,
impl<T> Spanned for Twhere T: Spanned + ?Sized,
source§fn span(&self) -> Span
fn span(&self) -> Span
Returns a
Span
covering the complete contents of this syntax tree
node, or Span::call_site()
if this node is empty.