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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/ui/traits/bug-7183-generics.rs | |
parent | Initial commit. (diff) | |
download | rustc-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.rs | 36 |
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()); +} |