From 218caa410aa38c29984be31a5229b9fa717560ee Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 17 Apr 2024 14:19:13 +0200 Subject: Merging upstream version 1.68.2+dfsg1. Signed-off-by: Daniel Baumann --- src/test/ui/issues/issue-29746.rs | 36 ------------------------------------ 1 file changed, 36 deletions(-) delete mode 100644 src/test/ui/issues/issue-29746.rs (limited to 'src/test/ui/issues/issue-29746.rs') diff --git a/src/test/ui/issues/issue-29746.rs b/src/test/ui/issues/issue-29746.rs deleted file mode 100644 index 3470a7e09..000000000 --- a/src/test/ui/issues/issue-29746.rs +++ /dev/null @@ -1,36 +0,0 @@ -// run-pass -// zip!(a1,a2,a3,a4) is equivalent to: -// a1.zip(a2).zip(a3).zip(a4).map(|(((x1,x2),x3),x4)| (x1,x2,x3,x4)) -macro_rules! zip { - // Entry point - ([$a:expr, $b:expr, $($rest:expr),*]) => { - zip!([$($rest),*], $a.zip($b), (x,y), [x,y]) - }; - - // Intermediate steps to build the zipped expression, the match pattern - // and the output tuple of the closure, using macro hygiene to repeatedly - // introduce new variables named 'x'. - ([$a:expr, $($rest:expr),*], $zip:expr, $pat:pat, [$($flat:expr),*]) => { - zip!([$($rest),*], $zip.zip($a), ($pat,x), [$($flat),*, x]) - }; - - // Final step - ([], $zip:expr, $pat:pat, [$($flat:expr),+]) => { - $zip.map(|$pat| ($($flat),+)) - }; - - // Comma - ([$a:expr], $zip:expr, $pat:pat, [$($flat:expr),*]) => { - zip!([$a,], $zip, $pat, [$($flat),*]) - }; -} - -fn main() { - let p1 = vec![1i32, 2].into_iter(); - let p2 = vec!["10", "20"].into_iter(); - let p3 = vec![100u16, 200].into_iter(); - let p4 = vec![1000i64, 2000].into_iter(); - - let e = zip!([p1,p2,p3,p4]).collect::>(); - assert_eq!(e[0], (1i32,"10",100u16,1000i64)); -} -- cgit v1.2.3