Merging upstream version 1.68.2+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 0 insertions, 48 deletions

diff --git a/src/test/ui/traits/monad.rs b/src/test/ui/traits/monad.rs
deleted file mode 100644
index 5d0612cf8..000000000
--- a/src/test/ui/traits/monad.rs
+++ /dev/null
@@ -1,48 +0,0 @@
-// run-pass
-
-#![allow(non_camel_case_types)]
-
-
-
-trait vec_monad<A> {
-    fn bind<B, F>(&self, f: F ) -> Vec<B> where F: FnMut(&A) -> Vec<B> ;
-}
-
-impl<A> vec_monad<A> for Vec<A> {
-    fn bind<B, F>(&self, mut f: F) -> Vec<B> where F: FnMut(&A) -> Vec<B> {
-        let mut r = Vec::new();
-        for elt in self {
-            r.extend(f(elt));
-        }
-        r
-    }
-}
-
-trait option_monad<A> {
-    fn bind<B, F>(&self, f: F) -> Option<B> where F: FnOnce(&A) -> Option<B>;
-}
-
-impl<A> option_monad<A> for Option<A> {
-    fn bind<B, F>(&self, f: F) -> Option<B> where F: FnOnce(&A) -> Option<B> {
-        match *self {
-            Some(ref a) => { f(a) }
-            None => { None }
-        }
-    }
-}
-
-fn transform(x: Option<isize>) -> Option<String> {
-    x.bind(|n| Some(*n + 1) ).bind(|n| Some(n.to_string()) )
-}
-
-pub fn main() {
-    assert_eq!(transform(Some(10)), Some("11".to_string()));
-    assert_eq!(transform(None), None);
-    assert_eq!((vec!["hi".to_string()])
-        .bind(|x| vec![x.clone(), format!("{}!", x)] )
-        .bind(|x| vec![x.clone(), format!("{}?", x)] ),
-        ["hi".to_string(),
-         "hi?".to_string(),
-         "hi!".to_string(),
-         "hi!?".to_string()]);
-}