tests: add base_covar_int2.nit and base_virtual_int2.nit

[nit.git] / tests / base_covar_int2.nit

diff --git a/tests/base_covar_int2.nit b/tests/base_covar_int2.nit
new file mode 100644 (file)
index 0000000..550f651
--- /dev/null
+++ b/tests/base_covar_int2.nit
@@ -0,0 +1,46 @@
+# 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
+
+interface A
+       type V: A
+       fun foo(v: V): V is abstract
+end
+
+redef class Int
+       super A
+       redef type V: Int
+       redef fun foo(v) do return self
+end
+
+redef class Char
+       super A
+       redef type V: Char
+       redef fun foo(v) do return self
+end
+
+var d1: A = 1
+var d2: A = 2
+var c1: A = 'a'
+var c2: A = 'b'
+1.foo(2).output
+d1.foo(2).output
+#alt1#c1.foo(2).output
+#alt2#1.foo(d2).output
+d1.foo(d2).output
+#alt3#c1.foo(d2).output
+#alt4#1.foo(c2).output
+#alt5#d1.foo(c2).output
+c1.foo(c2).output