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Diffstat (limited to 'src/test/ui/traits/generic.rs')
-rw-r--r-- | src/test/ui/traits/generic.rs | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/src/test/ui/traits/generic.rs b/src/test/ui/traits/generic.rs deleted file mode 100644 index 80efe1c93..000000000 --- a/src/test/ui/traits/generic.rs +++ /dev/null @@ -1,45 +0,0 @@ -// run-pass -#![allow(non_camel_case_types)] - - - -trait to_str { - fn to_string_(&self) -> String; -} -impl to_str for isize { - fn to_string_(&self) -> String { self.to_string() } -} -impl to_str for String { - fn to_string_(&self) -> String { self.clone() } -} -impl to_str for () { - fn to_string_(&self) -> String { "()".to_string() } -} - -trait map<T> { - fn map<U, F>(&self, f: F) -> Vec<U> where F: FnMut(&T) -> U; -} -impl<T> map<T> for Vec<T> { - fn map<U, F>(&self, mut f: F) -> Vec<U> where F: FnMut(&T) -> U { - let mut r = Vec::new(); - for i in self { - r.push(f(i)); - } - r - } -} - -fn foo<U, T: map<U>>(x: T) -> Vec<String> { - x.map(|_e| "hi".to_string() ) -} -fn bar<U:to_str,T:map<U>>(x: T) -> Vec<String> { - x.map(|_e| _e.to_string_() ) -} - -pub fn main() { - assert_eq!(foo(vec![1]), ["hi".to_string()]); - assert_eq!(bar::<isize, Vec<isize> >(vec![4, 5]), ["4".to_string(), "5".to_string()]); - assert_eq!(bar::<String, Vec<String> >(vec!["x".to_string(), "y".to_string()]), - ["x".to_string(), "y".to_string()]); - assert_eq!(bar::<(), Vec<()>>(vec![()]), ["()".to_string()]); -} |