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 intrude import text::flat
  20 import file
  21
  22 class StringTest
  23
  24         var copied_str: nullable String = null
  25
  26         var referenced_str: nullable String = null
  27
  28         fun get_c_string import FlatString.items, CString.to_s, CString.to_s, StringTest.ref_test, StringTest.copy_test `{
  29                 char* string = "This is a test string";
  30
  31                 FlatString ref_string = CString_to_s(string);
  32                 StringTest_ref_test(self, ref_string);
  33
  34                 FlatString copy_string = CString_to_s(string);
  35                 StringTest_copy_test(self, copy_string);
  36
  37                 int same_refs = FlatString_items(copy_string) == FlatString_items(ref_string);
  38
  39                 printf("Do the strings have the same CString reference ? ");
  40
  41                 if(same_refs){
  42                         printf("True\n");
  43                 }else{
  44                         printf("False\n");
  45                 }
  46         `}
  47
  48         private fun ref_test(referenced: String)
  49         do
  50                 print referenced
  51                 referenced_str = referenced
  52         end
  53
  54         private fun copy_test(copied: String)
  55         do
  56                 print copied
  57                 copied_str = copied
  58         end
  59
  60 end
  61
  62 var str_test = new StringTest
  63
  64 str_test.get_c_string