bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/hir-ty/src/mir/eval/tests.rs')
-rw-r--r--crates/hir-ty/src/mir/eval/tests.rs44
1 files changed, 44 insertions, 0 deletions
diff --git a/crates/hir-ty/src/mir/eval/tests.rs b/crates/hir-ty/src/mir/eval/tests.rs
index 4e21a96327..46165cf3d6 100644
--- a/crates/hir-ty/src/mir/eval/tests.rs
+++ b/crates/hir-ty/src/mir/eval/tests.rs
@@ -183,6 +183,50 @@ fn main() {
}
#[test]
+fn drop_struct_field() {
+ check_pass(
+ r#"
+//- minicore: drop, add, option, cell, builtin_impls
+
+use core::cell::Cell;
+
+fn should_not_reach() {
+ _ // FIXME: replace this function with panic when that works
+}
+
+struct X<'a>(&'a Cell<i32>);
+impl<'a> Drop for X<'a> {
+ fn drop(&mut self) {
+ self.0.set(self.0.get() + 1)
+ }
+}
+
+struct Tuple<'a>(X<'a>, X<'a>, X<'a>);
+
+fn main() {
+ let s = Cell::new(0);
+ {
+ let x0 = X(&s);
+ let xt = Tuple(x0, X(&s), X(&s));
+ let x1 = xt.1;
+ if s.get() != 0 {
+ should_not_reach();
+ }
+ drop(xt.0);
+ if s.get() != 1 {
+ should_not_reach();
+ }
+ }
+ // FIXME: this should be 3
+ if s.get() != 2 {
+ should_not_reach();
+ }
+}
+"#,
+ );
+}
+
+#[test]
fn drop_in_place() {
check_pass(
r#"