tests/string_ffi_ref_test.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2013 Lucas Bajolet <lucas.bajolet@gmail.com>
   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 module string_ffi_ref_test
  18
  19 class StringTest
  20
  21         var copied_str: nullable String
  22
  23         var referenced_str: nullable String
  24
  25         init
  26         do
  27                 copied_str = null
  28                 referenced_str = null
  29         end
  30
  31         fun get_c_string import String::items, String::from_cstring, String::copy_from_native, StringTest::ref_test, StringTest::copy_test `{
  32                 char* string = "This is a test string";
  33
  34                 String ref_string = new_String_from_cstring(string);
  35                 StringTest_ref_test(recv, ref_string);
  36
  37                 String copy_string = new_String_copy_from_native(string);
  38                 StringTest_copy_test(recv, copy_string);
  39
  40                 int same_refs = String_items(copy_string) == String_items(ref_string);
  41
  42                 printf("Do the strings have the same NativeString reference ? ");
  43
  44                 if(same_refs){
  45                         printf("True\n");
  46                 }else{
  47                         printf("False\n");
  48                 }
  49         `}
  50
  51         private fun ref_test(referenced: String)
  52         do
  53                 print referenced
  54                 referenced_str = referenced
  55         end
  56
  57         private fun copy_test(copied: String)
  58         do
  59                 print copied
  60                 copied_str = copied
  61         end
  62
  63 end
  64
  65 var str_test = new StringTest
  66
  67 str_test.get_c_string