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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:13 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:19:13 +0000
commit218caa410aa38c29984be31a5229b9fa717560ee (patch)
treec54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/closures/2229_closure_analysis/run_pass/filter-on-struct-member.rs
parentReleasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff)
downloadrustc-218caa410aa38c29984be31a5229b9fa717560ee.tar.xz
rustc-218caa410aa38c29984be31a5229b9fa717560ee.zip
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/ui/closures/2229_closure_analysis/run_pass/filter-on-struct-member.rs')
-rw-r--r--tests/ui/closures/2229_closure_analysis/run_pass/filter-on-struct-member.rs37
1 files changed, 37 insertions, 0 deletions
diff --git a/tests/ui/closures/2229_closure_analysis/run_pass/filter-on-struct-member.rs b/tests/ui/closures/2229_closure_analysis/run_pass/filter-on-struct-member.rs
new file mode 100644
index 000000000..e19f5ff1b
--- /dev/null
+++ b/tests/ui/closures/2229_closure_analysis/run_pass/filter-on-struct-member.rs
@@ -0,0 +1,37 @@
+// edition:2021
+// run-pass
+
+// Test disjoint capture within an impl block
+
+struct Filter {
+ div: i32,
+}
+impl Filter {
+ fn allowed(&self, x: i32) -> bool {
+ x % self.div == 1
+ }
+}
+
+struct Data {
+ filter: Filter,
+ list: Vec<i32>,
+}
+impl Data {
+ fn update(&mut self) {
+ // The closure passed to filter only captures self.filter,
+ // therefore mutating self.list is allowed.
+ self.list.retain(
+ |v| self.filter.allowed(*v),
+ );
+ }
+}
+
+fn main() {
+ let mut d = Data { filter: Filter { div: 3 }, list: Vec::new() };
+
+ for i in 1..10 {
+ d.list.push(i);
+ }
+
+ d.update();
+}