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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/traits/bug-7183-generics.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/traits/bug-7183-generics.rs')
-rw-r--r--src/test/ui/traits/bug-7183-generics.rs36
1 files changed, 36 insertions, 0 deletions
diff --git a/src/test/ui/traits/bug-7183-generics.rs b/src/test/ui/traits/bug-7183-generics.rs
new file mode 100644
index 000000000..f53a17361
--- /dev/null
+++ b/src/test/ui/traits/bug-7183-generics.rs
@@ -0,0 +1,36 @@
+// run-pass
+
+trait Speak : Sized {
+ fn say(&self, s:&str) -> String;
+ fn hi(&self) -> String { hello(self) }
+}
+
+fn hello<S:Speak>(s:&S) -> String{
+ s.say("hello")
+}
+
+impl Speak for isize {
+ fn say(&self, s:&str) -> String {
+ format!("{}: {}", s, *self)
+ }
+}
+
+impl<T: Speak> Speak for Option<T> {
+ fn say(&self, s:&str) -> String {
+ match *self {
+ None => format!("{} - none", s),
+ Some(ref x) => { format!("something!{}", x.say(s)) }
+ }
+ }
+}
+
+
+pub fn main() {
+ assert_eq!(3.hi(), "hello: 3".to_string());
+ assert_eq!(Some(Some(3)).hi(),
+ "something!something!hello: 3".to_string());
+ assert_eq!(None::<isize>.hi(), "hello - none".to_string());
+
+ assert_eq!(Some(None::<isize>).hi(), "something!hello - none".to_string());
+ assert_eq!(Some(3).hi(), "something!hello: 3".to_string());
+}