tests/test_ffi_c_operators.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2011-2014 Alexis Laferrière <alexis.laf@xymus.net>
   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 class A
  18         var value : Int
  19
  20         init ( value : Int ) do self.value = value
  21
  22         fun +( other : A ) : A import value, A `{
  23                 int s = A_value( recv );
  24                 int o = A_value( other );
  25
  26                 return new_A( s + o );
  27         `}
  28
  29         fun -( other : A ) : A import value, A `{
  30                 int s = A_value( recv );
  31                 int o = A_value( other );
  32
  33                 return new_A( s - o );
  34         `}
  35
  36         fun -: A import value, A `{
  37                 int s = A_value(recv);
  38                 return new_A(-s);
  39         `}
  40
  41         fun *( by : Int ) : A import value, A `{
  42                 int s = A_value( recv );
  43
  44                 return new_A( s * by );
  45         `}
  46
  47         fun /( by : Int ) : A import value, A `{
  48                 int s = A_value( recv );
  49
  50                 return new_A( s / by );
  51         `}
  52
  53         redef fun ==( other ) import value, nullable Object.as(A) `{
  54                 if ( nullable_Object_is_a_A( other ) &&
  55                          A_value( nullable_Object_as_A(other) ) == A_value( recv ) )
  56                         return 1;
  57                 else
  58                         return 0;
  59         `}
  60
  61         fun %( other : A ) : A import value, A `{
  62                 return new_A( A_value( recv ) % A_value( other ) );
  63         `}
  64
  65 #       fun +=( other : A ) : A import value, value=, A `{
  66 #               int new_val = A_value( recv ) + A_value( other );
  67 #               A_value__assign( recv, new_val );
  68 #               return new_A( new_val );
  69 #       `}
  70
  71 #       fun -=( other : A ) : A import +=, A, value `{
  72 #               A inv_other = new_A( -1*A_value( other ) );
  73 #               return A__plus_equal( recv, int_other );
  74 #       `}
  75
  76         fun <=>( other : A ) : A import value, A `{
  77                 return new_A( A_value( recv )* 1024 );
  78         `}
  79
  80 #       fun @( other : A ) : A import value, A `{
  81 #               return new_A( A_value( recv )* 1000 );
  82 #       `}
  83
  84         fun >( other : A ) : Bool import value `{
  85                 return A_value( recv ) > A_value( other );
  86         `}
  87
  88         fun <( other : A ) : Bool import value `{
  89                 return A_value( recv ) < A_value( other );
  90         `}
  91
  92         fun >=( other : A ) : Bool import value `{
  93                 return A_value( recv ) >= A_value( other );
  94         `}
  95
  96         fun <=( other : A ) : Bool import value `{
  97                 return A_value( recv ) <= A_value( other );
  98         `}
  99
 100         fun >>( other : A ) import value, value=, A `{
 101                 int new_val = A_value( recv ) >> A_value( other );
 102                 A_value__assign( recv, new_val );
 103         `}
 104
 105         fun <<( other : A ) import value, A `{
 106                 int new_val = A_value( recv ) << A_value( other );
 107                 A_value__assign( recv, new_val );
 108         `}
 109
 110         fun []( index : Int ) : A import A `{
 111                 return new_A( index );
 112         `}
 113
 114         fun []=( index : Int, value : A ) : A import A `{
 115                 return new_A( index + A_value( value ) );
 116         `}
 117
 118         redef fun to_s do return value.to_s
 119 end
 120
 121 print new A( 1 ) + new A( 10 ) # 11
 122 print new A( 10 ) - new A( 1 ) # 9
 123
 124 print new A( 2 ) * 11 # 22
 125 print new A( 33 ) / 11 # 3
 126
 127 #print new A( 44 ) == null # false
 128 print new A( 55 ) == 55 # false
 129 print new A( 33 ) == new A( 11 ) # false
 130 print new A( 22 ) == new A( 77 ) # false
 131 print new A( 11 ) == new A( 11 ) # true
 132
 133 print new A( 147 ) % new A( 12 ) # 3
 134 print new A( 4 ) <=> new A( 123 ) # 4096
 135
 136 print new A( 1 ) < new A( 100 ) # true
 137 print new A( 100 ) < new A( 100 ) # false
 138 print new A( 100 ) < new A( 1 ) # false
 139
 140 print new A( 1 ) > new A( 100 ) # false
 141 print new A( 100 ) > new A( 100 ) # false
 142 print new A( 100 ) > new A( 1 ) # true
 143
 144 print new A( 1 ) <= new A( 100 ) # true
 145 print new A( 100 ) <= new A( 100 ) # true
 146 print new A( 100 ) <= new A( 1 ) # false
 147
 148 print new A( 1 ) >= new A( 100 ) # false
 149 print new A( 100 ) >= new A( 100 ) # true
 150 print new A( 100 ) >= new A( 1 ) # true
 151
 152 #var x = new A( 1 )
 153 #x << new A( 5 )
 154 #print x # 16
 155
 156 #var y = new A( 32 )
 157 #y >> new A( 2 )
 158 #print y # 8
 159
 160 var a = new A( 456 )
 161 print a[ 52 ] # 52
 162
 163 a[ 74 ] = new A( 96 )
 164 print a # 96
 165
 166 print(-(new A(123)))