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 string
  20 import file
  21
  22 class StringTest
  23
  24         var copied_str: nullable String
  25
  26         var referenced_str: nullable String
  27
  28         init
  29         do
  30                 copied_str = null
  31                 referenced_str = null
  32         end
  33
  34         fun get_c_string import FlatString.items, NativeString.to_s, NativeString.to_s_with_copy, StringTest.ref_test, StringTest.copy_test `{
  35                 char* string = "This is a test string";
  36
  37                 FlatString ref_string = NativeString_to_s(string);
  38                 StringTest_ref_test(recv, ref_string);
  39
  40                 FlatString copy_string = NativeString_to_s_with_copy(string);
  41                 StringTest_copy_test(recv, copy_string);
  42
  43                 int same_refs = FlatString_items(copy_string) == FlatString_items(ref_string);
  44
  45                 printf("Do the strings have the same NativeString reference ? ");
  46
  47                 if(same_refs){
  48                         printf("True\n");
  49                 }else{
  50                         printf("False\n");
  51                 }
  52         `}
  53
  54         private fun ref_test(referenced: String)
  55         do
  56                 print referenced
  57                 referenced_str = referenced
  58         end
  59
  60         private fun copy_test(copied: String)
  61         do
  62                 print copied
  63                 copied_str = copied
  64         end
  65
  66 end
  67
  68 var str_test = new StringTest
  69
  70 str_test.get_c_string