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authorAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-05 09:13:28 +0100
committerAlbert Larsan <74931857+albertlarsan68@users.noreply.github.com>2023-01-11 09:32:08 +0000
commitcf2dff2b1e3fa55fa5415d524200070d0d7aacfe (patch)
tree40a88d9a46aaf3e8870676eb2538378b75a263eb /tests/ui/const-generics/defaults/trait_objects.rs
parentca855e6e42787ecd062d81d53336fe6788ef51a9 (diff)
downloadrust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.tar.gz
rust-cf2dff2b1e3fa55fa5415d524200070d0d7aacfe.zip
Move /src/test to /tests
Diffstat (limited to 'tests/ui/const-generics/defaults/trait_objects.rs')
-rw-r--r--tests/ui/const-generics/defaults/trait_objects.rs43
1 files changed, 43 insertions, 0 deletions
diff --git a/tests/ui/const-generics/defaults/trait_objects.rs b/tests/ui/const-generics/defaults/trait_objects.rs
new file mode 100644
index 00000000000..750e40313fb
--- /dev/null
+++ b/tests/ui/const-generics/defaults/trait_objects.rs
@@ -0,0 +1,43 @@
+// run-pass
+trait Trait<const N: u8 = 12> {
+    fn uwu(&self) -> u8 {
+        N
+    }
+}
+
+impl Trait for u32 {}
+
+impl Trait<12> for u64 {
+    fn uwu(&self) -> u8 {
+        *self as u8
+    }
+}
+
+fn foo(arg: &dyn Trait) -> u8 {
+    arg.uwu()
+}
+
+trait Traitor<const N: u8 = 1, const M: u8 = N> {
+    fn owo(&self) -> u8 {
+        M
+    }
+}
+
+impl Traitor<2> for bool { }
+impl Traitor for u8 {
+    fn owo(&self) -> u8 {
+        *self
+    }
+}
+
+fn bar<const N: u8>(arg: &dyn Traitor<N>) -> u8 {
+    arg.owo()
+}
+
+fn main() {
+    assert_eq!(foo(&10_u32), 12);
+    assert_eq!(foo(&3_u64), 3);
+
+    assert_eq!(bar(&true), 2);
+    assert_eq!(bar(&1_u8), 1);
+}