Enum syn::TraitBoundModifier

pub enum TraitBoundModifier {
    None,
    Maybe(Question),
}

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 Clone for TraitBoundModifier

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TraitBoundModifier

fn fmt(&self, formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for TraitBoundModifier

fn hash<H>(&self, state: &mut H) where
    H: Hasher, 

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Parse for TraitBoundModifier

fn parse(input: ParseStream<'_>) -> Result<Self>

impl PartialEq<TraitBoundModifier> for TraitBoundModifier

fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl ToTokens for TraitBoundModifier

fn to_tokens(&self, tokens: &mut TokenStream)

Write self to the given TokenStream.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.

fn into_token_stream(self) -> TokenStream

Convert self directly into a TokenStream object.

impl Copy for TraitBoundModifier

impl Eq for TraitBoundModifier