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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/rfcs/rfc-2528-type-changing-struct-update/lifetime-update.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/rfcs/rfc-2528-type-changing-struct-update/lifetime-update.rs')
-rw-r--r--tests/ui/rfcs/rfc-2528-type-changing-struct-update/lifetime-update.rs43
1 files changed, 43 insertions, 0 deletions
diff --git a/tests/ui/rfcs/rfc-2528-type-changing-struct-update/lifetime-update.rs b/tests/ui/rfcs/rfc-2528-type-changing-struct-update/lifetime-update.rs
new file mode 100644
index 000000000..df2fef55d
--- /dev/null
+++ b/tests/ui/rfcs/rfc-2528-type-changing-struct-update/lifetime-update.rs
@@ -0,0 +1,43 @@
+#![feature(type_changing_struct_update)]
+#![allow(incomplete_features)]
+
+#[derive(Clone)]
+struct Machine<'a, S> {
+ state: S,
+ lt_str: &'a str,
+ common_field: i32,
+}
+
+#[derive(Clone)]
+struct State1;
+#[derive(Clone)]
+struct State2;
+
+fn update_to_state2() {
+ let s = String::from("hello");
+ let m1: Machine<State1> = Machine {
+ state: State1,
+ lt_str: &s,
+ //~^ ERROR `s` does not live long enough [E0597]
+ // FIXME: The error here actually comes from line 34. The
+ // span of the error message should be corrected to line 34
+ common_field: 2,
+ };
+ // update lifetime
+ let m3: Machine<'static, State1> = Machine {
+ lt_str: "hello, too",
+ ..m1.clone()
+ };
+ // update lifetime and type
+ let m4: Machine<'static, State2> = Machine {
+ state: State2,
+ lt_str: "hello, again",
+ ..m1.clone()
+ };
+ // updating to `static should fail.
+ let m2: Machine<'static, State1> = Machine {
+ ..m1
+ };
+}
+
+fn main() {}