29 // In `impl Extend<TokenTree> for TokenStream` which is used heavily by quote,
30 // we hold on to the appended tokens and do proc_macro::TokenStream::extend as
31 // late as possible to batch together consecutive uses of the Extend impl.
77             self.stream.extend(self.extra.drain(..));  in evaluate_now()
210                 first.stream.extend(streams.map(|s| match s {  in from_iter()
217                 first.extend(streams.map(|s| match s {  in from_iter()
228 impl Extend<TokenTree> for TokenStream {
229     fn extend<I: IntoIterator<Item = TokenTree>>(&mut self, stream: I) {  in extend()  method
237             TokenStream::Fallback(tts) => tts.extend(stream),  in extend()
242 impl Extend<TokenStream> for TokenStream {
243     fn extend<I: IntoIterator<Item = TokenStream>>(&mut self, streams: I) {  in extend()  method
248                     .extend(streams.into_iter().map(TokenStream::unwrap_nightly));  in extend()
251                 tts.extend(streams.into_iter().map(TokenStream::unwrap_stable));  in extend()