tests: forgot to add base_gen_variance2.nit

[nit.git] / tests / base_gen_variance2.nit

diff --git a/tests/base_gen_variance2.nit b/tests/base_gen_variance2.nit
new file mode 100644 (file)
index 0000000..2ee8d24
--- /dev/null
+++ b/tests/base_gen_variance2.nit
@@ -0,0 +1,69 @@
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import kernel
+
+class G[E: A]
+       var e: nullable E = null
+       fun foo(e: E)
+       do
+               0.output
+       end
+end
+
+class H[F: B]
+       super G[F]
+       redef fun foo(e)
+       do
+               e.bar
+       end
+end
+
+class A
+end
+class B
+       super A
+       fun bar
+       do
+               2.output
+       end
+end
+class C
+       super B
+       redef fun bar
+       do
+               3.output
+       end
+end
+class D
+       super A
+       fun not_bar
+       do
+               100.output
+       end
+end
+
+var h: G[A] = new H[C]
+var c = new C
+var b = new B
+var d = new D
+h.foo(c)
+#alt1#h.foo(b)
+#alt2#h.foo(d)
+'!'.output
+c.bar
+'!'.output
+b.bar
+'!'.output
+d.not_bar