tests/rterror_deep.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2004-2008 Jean Privat <jean@pryen.org>
   4 #
   5 # Licensed under the Apache License, Version 2.0 (the "License");
   6 # you may not use this file except in compliance with the License.
   7 # You may obtain a copy of the License at
   8 #
   9 #     http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 # Unless required by applicable law or agreed to in writing, software
  12 # distributed under the License is distributed on an "AS IS" BASIS,
  13 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 # See the License for the specific language governing permissions and
  15 # limitations under the License.
  16
  17 import kernel
  18
  19 class A
  20         fun foo(i: Int)
  21         do
  22                 i.output
  23                 if i == 1 then
  24                         return
  25                 end
  26                 if i % 2 == 0 then
  27                         bar(i)
  28                 else
  29                         baz(self, i)
  30                 end
  31         end
  32
  33         fun bar(i: Int)
  34         do
  35                 foo(i/2)
  36         end
  37
  38         init do end
  39 end
  40
  41 class B
  42 special A
  43         redef fun foo(i: Int)
  44         do
  45                 if i == 1 then
  46                         var a: A
  47                         a.foo(i) # Nil call
  48                 end
  49                 super
  50         end
  51
  52         init do end
  53 end
  54
  55 fun baz(a: A, i: Int)
  56 do
  57         a.foo(i+3)
  58 end
  59
  60 var a = new A
  61 a.foo(5)
  62 a = new B
  63 a.foo(5)