Enum syn::TraitBoundModifier [−][src]
pub enum TraitBoundModifier {
None,
Maybe(Question),
}
This is supported on crate features
full
or derive
only.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
None
Maybe(Question)
Tuple Fields
0: Question
Trait Implementations
impl PartialEq<TraitBoundModifier> for TraitBoundModifier
This is supported on crate feature extra-traits
only.
impl PartialEq<TraitBoundModifier> for TraitBoundModifier
This is supported on crate feature
extra-traits
only.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
Mutably borrows from an owned value. Read more