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 --- .../borrowck/borrowck-closures-slice-patterns.rs | 82 ++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 tests/ui/borrowck/borrowck-closures-slice-patterns.rs (limited to 'tests/ui/borrowck/borrowck-closures-slice-patterns.rs') diff --git a/tests/ui/borrowck/borrowck-closures-slice-patterns.rs b/tests/ui/borrowck/borrowck-closures-slice-patterns.rs new file mode 100644 index 000000000..32057d5c1 --- /dev/null +++ b/tests/ui/borrowck/borrowck-closures-slice-patterns.rs @@ -0,0 +1,82 @@ +// Check that closure captures for slice patterns are inferred correctly + +fn arr_by_ref(mut x: [String; 3]) { + let f = || { + let [ref y, ref z @ ..] = x; + }; + let r = &mut x; + //~^ ERROR cannot borrow + f(); +} + +fn arr_by_mut(mut x: [String; 3]) { + let mut f = || { + let [ref mut y, ref mut z @ ..] = x; + }; + let r = &x; + //~^ ERROR cannot borrow + f(); +} + +fn arr_by_move(x: [String; 3]) { + let f = || { + let [y, z @ ..] = x; + }; + &x; + //~^ ERROR borrow of moved value +} + +fn arr_ref_by_ref(x: &mut [String; 3]) { + let f = || { + let [ref y, ref z @ ..] = *x; + }; + let r = &mut *x; + //~^ ERROR cannot borrow + f(); +} + +fn arr_ref_by_uniq(x: &mut [String; 3]) { + let mut f = || { + let [ref mut y, ref mut z @ ..] = *x; + }; + let r = &x; + //~^ ERROR cannot borrow + f(); +} + +fn arr_box_by_move(x: Box<[String; 3]>) { + let f = || { + let [y, z @ ..] = *x; + }; + &x; + //~^ ERROR borrow of moved value +} + +fn slice_by_ref(x: &mut [String]) { + let f = || { + if let [ref y, ref z @ ..] = *x {} + }; + let r = &mut *x; + //~^ ERROR cannot borrow + f(); +} + +fn slice_by_uniq(x: &mut [String]) { + let mut f = || { + if let [ref mut y, ref mut z @ ..] = *x {} + }; + let r = &x; + //~^ ERROR cannot borrow + f(); +} + +fn main() { + arr_by_ref(Default::default()); + arr_by_mut(Default::default()); + arr_by_move(Default::default()); + arr_ref_by_ref(&mut Default::default()); + arr_ref_by_uniq(&mut Default::default()); + arr_box_by_move(Default::default()); + slice_by_ref(&mut <[_; 3]>::default()); + slice_by_uniq(&mut <[_; 3]>::default()); +} -- cgit v1.2.3