Enum syn::GenericArgument

pub enum GenericArgument {
    Lifetime(Lifetime),
    Type(Type),
    Const(Expr),
    Binding(Binding),
    Constraint(Constraint),
}

Available on crate features full or derive only.

An individual generic argument, like 'a, T, or Item = T.

This type is available only if Syn is built with the "derive" or "full" feature.

Variants

Lifetime(Lifetime)

A lifetime argument.

Type(Type)

A type argument.

Const(Expr)

A const expression. Must be inside of a block.

NOTE: Identity expressions are represented as Type arguments, as they are indistinguishable syntactically.

Binding(Binding)

A binding (equality constraint) on an associated type: the Item = u8 in Iterator<Item = u8>.

Constraint(Constraint)

An associated type bound: Iterator<Item: Display>.

Trait Implementations

impl Clone for GenericArgument

Available on crate feature clone-impls only.

fn clone(&self) -> Self

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Parse for GenericArgument

Available on crate feature parsing only.

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

impl ToTokens for GenericArgument

Available on crate feature printing only.

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.