tests/base_attr_abstract.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Licensed under the Apache License, Version 2.0 (the "License");
   4 # you may not use this file except in compliance with the License.
   5 # You may obtain a copy of the License at
   6 #
   7 #     http://www.apache.org/licenses/LICENSE-2.0
   8 #
   9 # Unless required by applicable law or agreed to in writing, software
  10 # distributed under the License is distributed on an "AS IS" BASIS,
  11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 # See the License for the specific language governing permissions and
  13 # limitations under the License.
  14
  15 import kernel
  16
  17 class Foo
  18         var a: Object is abstract
  19         var b: Object = 10 is abstract
  20         #alt1#var b is abstract, noautoinit
  21         #alt1#var c = 1 is abstract, lazy
  22         #alt1#var d = 1 is abstract, autoinit
  23         #alt1#var e = 1 is abstract, readonly
  24 end
  25
  26 class Bar
  27         super Foo
  28         redef var a
  29         redef var b is noinit
  30 end
  31
  32 class Baz
  33         super Foo
  34         redef fun a do return 100 #alt2#
  35         redef fun a=(x) do (101).output #alt3#
  36         redef fun b do return 200 #alt4#
  37         redef fun b=(x) do (201).output #alt5#
  38 end
  39
  40 var f: Foo = new Bar(1)
  41 f.a.output
  42 f.a = 2
  43 f.a.output
  44
  45 '\n'.output
  46
  47 f.b.output
  48 f.b = 20
  49 f.b.output
  50
  51 '\n'.output
  52
  53 f = new Baz
  54 f.a.output
  55 f.a = 3
  56 f.a.output
  57
  58 '\n'.output
  59
  60 f.b.output
  61 f.b = 30
  62 f.b.output