Trait TokenStreamExt

Required Methods

fn append<U>(&mut self, token: U)
where
    U: Into<TokenTree>,

For use by ToTokens implementations.

Appends the token specified to this list of tokens.

fn append_all<I>(&mut self, iter: I)
where
    I: IntoIterator,
    I::Item: ToTokens,

For use by ToTokens implementations.

# use quote::{quote, TokenStreamExt, ToTokens};
# use proc_macro2::TokenStream;
#
struct X;

impl ToTokens for X {
    fn to_tokens(&self, tokens: &mut TokenStream) {
        tokens.append_all(&[true, false]);
    }
}

let tokens = quote!(#X);
assert_eq!(tokens.to_string(), "true false");

fn append_separated<I, U>(&mut self, iter: I, op: U)
where
    I: IntoIterator,
    I::Item: ToTokens,
    U: ToTokens,

For use by ToTokens implementations.

Appends all of the items in the iterator I, separated by the tokens U.

fn append_terminated<I, U>(&mut self, iter: I, term: U)
where
    I: IntoIterator,
    I::Item: ToTokens,
    U: ToTokens,

For use by ToTokens implementations.

Appends all tokens in the iterator I, appending U after each element, including after the last element of the iterator.