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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:13 +0000 |
commit | 218caa410aa38c29984be31a5229b9fa717560ee (patch) | |
tree | c54bd55eeb6e4c508940a30e94c0032fbd45d677 /tests/ui/traits/bug-7183-generics.rs | |
parent | Releasing progress-linux version 1.67.1+dfsg1-1~progress7.99u1. (diff) | |
download | rustc-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/traits/bug-7183-generics.rs')
-rw-r--r-- | tests/ui/traits/bug-7183-generics.rs | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/tests/ui/traits/bug-7183-generics.rs b/tests/ui/traits/bug-7183-generics.rs new file mode 100644 index 000000000..f53a17361 --- /dev/null +++ b/tests/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()); +} |