Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
24 lines
712 B
Rust
24 lines
712 B
Rust
// SPDX-License-Identifier: GPL-2.0
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use proc_macro::{token_stream, Ident, TokenStream, TokenTree};
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use crate::helpers::expect_punct;
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fn expect_ident(it: &mut token_stream::IntoIter) -> Ident {
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if let Some(TokenTree::Ident(ident)) = it.next() {
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ident
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} else {
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panic!("Expected Ident")
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}
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}
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pub(crate) fn concat_idents(ts: TokenStream) -> TokenStream {
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let mut it = ts.into_iter();
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let a = expect_ident(&mut it);
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assert_eq!(expect_punct(&mut it), ',');
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let b = expect_ident(&mut it);
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assert!(it.next().is_none(), "only two idents can be concatenated");
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let res = Ident::new(&format!("{a}{b}"), b.span());
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TokenStream::from_iter([TokenTree::Ident(res)])
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}
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