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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:02:58 +0000
commit698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch)
tree173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/moves/issue-72649-uninit-in-loop.rs
parentInitial commit. (diff)
downloadrustc-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/moves/issue-72649-uninit-in-loop.rs')
-rw-r--r--src/test/ui/moves/issue-72649-uninit-in-loop.rs74
1 files changed, 74 insertions, 0 deletions
diff --git a/src/test/ui/moves/issue-72649-uninit-in-loop.rs b/src/test/ui/moves/issue-72649-uninit-in-loop.rs
new file mode 100644
index 000000000..d76b69ecd
--- /dev/null
+++ b/src/test/ui/moves/issue-72649-uninit-in-loop.rs
@@ -0,0 +1,74 @@
+// Regression test for issue #72649
+// Tests that we don't emit spurious
+// 'value moved in previous iteration of loop' message
+
+struct NonCopy;
+
+fn good() {
+ loop {
+ let value = NonCopy{};
+ let _used = value;
+ }
+}
+
+fn moved_here_1() {
+ loop {
+ let value = NonCopy{};
+ //~^ NOTE move occurs because `value` has type `NonCopy`, which does not implement the `Copy` trait
+ let _used = value;
+ //~^ NOTE value moved here
+ let _used2 = value; //~ ERROR use of moved value: `value`
+ //~^ NOTE value used here after move
+ }
+}
+
+fn moved_here_2() {
+ let value = NonCopy{};
+ //~^ NOTE move occurs because `value` has type `NonCopy`, which does not implement the `Copy` trait
+ loop {
+ let _used = value;
+ //~^ NOTE value moved here
+ loop {
+ let _used2 = value; //~ ERROR use of moved value: `value`
+ //~^ NOTE value used here after move
+ }
+ }
+}
+
+fn moved_loop_1() {
+ let value = NonCopy{};
+ //~^ NOTE move occurs because `value` has type `NonCopy`, which does not implement the `Copy` trait
+ loop {
+ let _used = value; //~ ERROR use of moved value: `value`
+ //~^ NOTE value moved here, in previous iteration of loop
+ }
+}
+
+fn moved_loop_2() {
+ let mut value = NonCopy{};
+ //~^ NOTE move occurs because `value` has type `NonCopy`, which does not implement the `Copy` trait
+ let _used = value;
+ value = NonCopy{};
+ loop {
+ let _used2 = value; //~ ERROR use of moved value: `value`
+ //~^ NOTE value moved here, in previous iteration of loop
+ }
+}
+
+fn uninit_1() {
+ loop {
+ let value: NonCopy; //~ NOTE declared here
+ let _used = value; //~ ERROR binding `value` isn't initialized
+ //~^ NOTE `value` used here but it isn't initialized
+ }
+}
+
+fn uninit_2() {
+ let mut value: NonCopy; //~ NOTE declared here
+ loop {
+ let _used = value; //~ ERROR binding `value` isn't initialized
+ //~^ NOTE `value` used here but it isn't initialized
+ }
+}
+
+fn main() {}