syntax: var assignment can bypass casted type

[nit.git] / tests / base_isa_cast2.nit

diff --git a/tests/base_isa_cast2.nit b/tests/base_isa_cast2.nit
new file mode 100644 (file)
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+++ b/tests/base_isa_cast2.nit
@@ -0,0 +1,62 @@
+# This file is part of NIT ( http://www.nitlanguage.org ).
+#
+# Copyright 2009 Jean Privat <jean@pryen.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 A
+       init do end
+end
+
+class B
+special A
+       meth foo(i: Int) do i.output
+       init do end
+end
+
+var a: A = new B
+if a isa B then
+       a.foo(1)
+       a = new B
+       a.foo(2)
+       a = new A
+       #alt1#a.foo(-1)
+else
+#alt2#a.foo(-2)
+end
+#alt3#a.foo(-3)
+
+if not a isa B then
+       #alt4#a.foo(-4)
+       a = new B
+       assert a isa B
+       a.foo(3)
+end
+#alt8#a.foo(4)
+
+while a isa B do
+       #alt8#a.foo(5)
+       a = new A
+       #alt5#a.foo(-5)
+end
+#alt6#a.foo(-6)
+
+while not a isa B do
+       #alt7#a.foo(-7)
+       a = new B
+       assert a isa B
+       a.foo(6)
+end
+#alt8#a.foo(7)