tests/syntax_callref.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 import functional
  15
  16 redef class Object
  17         fun foo: Object
  18         do
  19                 print "foo{self}"
  20                 return self
  21         end
  22         fun bar: Object
  23         do
  24                 print "baz{self}"
  25                 return self
  26         end
  27         fun baz: Object
  28         do
  29                 print "baz{self}"
  30                 return self
  31         end
  32
  33         redef fun to_s
  34         do
  35                 # cname without generics (for erasure compiler)
  36                 var cname = class_name.split('[')[0]
  37                 return "<{cname}>"
  38         end
  39 end
  40
  41 class Y
  42         var quux: Object = self
  43 end
  44
  45 var x
  46
  47 # self is the implicit receiver
  48 x = &foo
  49 x = &foo.bar
  50 x = &foo.bar.baz
  51 x = (&foo.bar).baz
  52 x = &(foo.bar).baz
  53
  54 var y = new Y
  55 #alt1#x = &y # error since y is a variable
  56 x = &y.foo
  57 x = &y.foo.bar
  58 x = &y.foo.bar.baz
  59 x = (&y.foo.bar).baz
  60 x = &(y.foo.bar).baz
  61
  62 x = &y.quux