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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/object-safety/object-safety-by-value-self.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/object-safety/object-safety-by-value-self.rs')
-rw-r--r--src/test/ui/object-safety/object-safety-by-value-self.rs46
1 files changed, 46 insertions, 0 deletions
diff --git a/src/test/ui/object-safety/object-safety-by-value-self.rs b/src/test/ui/object-safety/object-safety-by-value-self.rs
new file mode 100644
index 000000000..c74a4d1cb
--- /dev/null
+++ b/src/test/ui/object-safety/object-safety-by-value-self.rs
@@ -0,0 +1,46 @@
+// Check that a trait with by-value self is considered object-safe.
+
+// build-pass (FIXME(62277): could be check-pass?)
+#![allow(dead_code)]
+#![allow(trivial_casts)]
+
+trait Bar {
+ fn bar(self);
+}
+
+trait Baz {
+ fn baz(self: Self);
+}
+
+trait Quux {
+ // Legal because of the where clause:
+ fn baz(self: Self) where Self : Sized;
+}
+
+fn make_bar<T:Bar>(t: &T) -> &dyn Bar {
+ t // legal
+}
+
+fn make_bar_explicit<T:Bar>(t: &T) -> &dyn Bar {
+ t as &dyn Bar // legal
+}
+
+fn make_baz<T:Baz>(t: &T) -> &dyn Baz {
+ t // legal
+}
+
+fn make_baz_explicit<T:Baz>(t: &T) -> &dyn Baz {
+ t as &dyn Baz // legal
+}
+
+fn make_quux<T:Quux>(t: &T) -> &dyn Quux {
+ t
+}
+
+fn make_quux_explicit<T:Quux>(t: &T) -> &dyn Quux {
+ t as &dyn Quux
+}
+
+
+fn main() {
+}