Extend test to cover dyn methods/functions.

src/test/ui/const-generics/dyn-supertraits.rs

@@ -1,58 +1,82 @@
-// check-pass
+// run-pass
 // revisions: full min
 
 #![cfg_attr(full, feature(const_generics))]
 #![cfg_attr(full, allow(incomplete_features))]
 #![cfg_attr(min, feature(min_const_generics))]
 
-trait Foo<const N: usize> {}
+trait Foo<const N: usize> {
+    fn myfun(&self) -> usize;
+}
 trait Bar<const N: usize> : Foo<N> {}
 trait Baz: Foo<3> {}
 
-struct FooType<const N: usize> {}
+struct FooType<const N: usize>;
-struct BarType<const N: usize> {}
+struct BarType<const N: usize>;
-struct BazType {}
+struct BazType;
 
-impl<const N: usize> Foo<N> for FooType<N> {}
+impl<const N: usize> Foo<N> for FooType<N> {
-impl<const N: usize> Foo<N> for BarType<N> {}
+    fn myfun(&self) -> usize { N }
+}
+impl<const N: usize> Foo<N> for BarType<N> {
+    fn myfun(&self) -> usize { N + 1 }
+}
 impl<const N: usize> Bar<N> for BarType<N> {}
-impl Foo<3> for BazType {}
+impl Foo<3> for BazType {
+    fn myfun(&self) -> usize { 999 }
+}
 impl Baz for BazType {}
 
 trait Foz {}
 trait Boz: Foo<3> + Foz {}
 trait Bok<const N: usize>: Foo<N> + Foz {}
 
-struct FozType {}
+struct FozType;
-struct BozType {}
+struct BozType;
-struct BokType<const N: usize> {}
+struct BokType<const N: usize>;
 
 impl Foz for FozType {}
 
 impl Foz for BozType {}
-impl Foo<3> for BozType {}
+impl Foo<3> for BozType {
+    fn myfun(&self) -> usize { 9999 }
+}
 impl Boz for BozType {}
 
 impl<const N: usize> Foz for BokType<N> {}
-impl<const N: usize> Foo<N> for BokType<N> {}
+impl<const N: usize> Foo<N> for BokType<N> {
+    fn myfun(&self) -> usize { N + 2 }
+}
 impl<const N: usize> Bok<N> for BokType<N> {}
 
-fn a<const N: usize>(x: &dyn Foo<N>) {}
+fn a<const N: usize>(_: &dyn Foo<N>) {}
-fn b(x: &dyn Foo<3>) {}
+fn b(_: &dyn Foo<3>) {}
+fn c<T: Bok<N>, const N: usize>(x: T) { a::<N>(&x); }
+fn d<T: ?Sized + Foo<3>>(_: &T) {}
+fn e(x: &dyn Bar<3>) { d(x); }
+
+fn get_myfun<const N: usize>(x: &dyn Foo<N>) -> usize { x.myfun() }
 
 fn main() {
     let foo = FooType::<3> {};
-    a(&foo); b(&foo);
+    a(&foo); b(&foo); d(&foo);
+    assert!(get_myfun(&foo) == 3);
 
     let bar = BarType::<3> {};
-    a(&bar); b(&bar);
+    a(&bar); b(&bar); d(&bar); e(&bar);
+    assert!(get_myfun(&bar) == 4);
 
     let baz = BazType {};
-    a(&baz); b(&baz);
+    a(&baz); b(&baz); d(&baz);
+    assert!(get_myfun(&baz) == 999);
 
     let boz = BozType {};
-    a(&boz); b(&boz);
+    a(&boz); b(&boz); d(&boz);
+    assert!(get_myfun(&boz) == 9999);
 
     let bok = BokType::<3> {};
-    a(&bok); b(&bok);
+    a(&bok); b(&bok); d(&bok);
+    assert!(get_myfun(&bok) == 5);
+    
+    c(BokType::<3> {});
 }