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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/borrowck/borrowck-insert-during-each.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/ui/borrowck/borrowck-insert-during-each.rs')
-rw-r--r-- | src/test/ui/borrowck/borrowck-insert-during-each.rs | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/test/ui/borrowck/borrowck-insert-during-each.rs b/src/test/ui/borrowck/borrowck-insert-during-each.rs new file mode 100644 index 000000000..df967e611 --- /dev/null +++ b/src/test/ui/borrowck/borrowck-insert-during-each.rs @@ -0,0 +1,26 @@ +use std::collections::HashSet; + +struct Foo { + n: HashSet<isize>, +} + +impl Foo { + pub fn foo<F>(&mut self, mut fun: F) where F: FnMut(&isize) { + for f in &self.n { + fun(f); + } + } +} + +fn bar(f: &mut Foo) { + f.foo( + //~^ ERROR cannot borrow `*f` as mutable + |a| { //~ ERROR closure requires unique access to `f` + f.n.insert(*a); + }) +} + +fn main() { + let mut f = Foo { n: HashSet::new() }; + bar(&mut f); +} |