tests/test_ffi_c_operators.nit

   1 # This file is part of NIT ( http://www.nitlanguage.org ).
   2 #
   3 # Copyright 2011-2013 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 *( by : Int ) : A import value, A `{
  37                 int s = A_value( recv );
  38
  39                 return new_A( s * by );
  40         `}
  41
  42         fun /( by : Int ) : A import value, A `{
  43                 int s = A_value( recv );
  44
  45                 return new_A( s / by );
  46         `}
  47
  48         redef fun ==( other ) import value, nullable Object as(A) `{
  49                 if ( nullable_Object_is_a_A( other ) &&
  50                          A_value( nullable_Object_as_A(other) ) == A_value( recv ) )
  51                         return 1;
  52                 else
  53                         return 0;
  54         `}
  55
  56         fun %( other : A ) : A import value, A `{
  57                 return new_A( A_value( recv ) % A_value( other ) );
  58         `}
  59
  60 #       fun +=( other : A ) : A import value, value=, A `{
  61 #               int new_val = A_value( recv ) + A_value( other );
  62 #               A_value__assign( recv, new_val );
  63 #               return new_A( new_val );
  64 #       `}
  65
  66 #       fun -=( other : A ) : A import +=, A, value `{
  67 #               A inv_other = new_A( -1*A_value( other ) );
  68 #               return A__plus_equal( recv, int_other );
  69 #       `}
  70
  71         fun <=>( other : A ) : A import value, A `{
  72                 return new_A( A_value( recv )* 1024 );
  73         `}
  74
  75 #       fun @( other : A ) : A import value, A `{
  76 #               return new_A( A_value( recv )* 1000 );
  77 #       `}
  78
  79         fun >( other : A ) : Bool import value `{
  80                 return A_value( recv ) > A_value( other );
  81         `}
  82
  83         fun <( other : A ) : Bool import value `{
  84                 return A_value( recv ) < A_value( other );
  85         `}
  86
  87         fun >=( other : A ) : Bool import value `{
  88                 return A_value( recv ) >= A_value( other );
  89         `}
  90
  91         fun <=( other : A ) : Bool import value `{
  92                 return A_value( recv ) <= A_value( other );
  93         `}
  94
  95         fun >>( other : A ) import value, value=, A `{
  96                 int new_val = A_value( recv ) >> A_value( other );
  97                 A_value__assign( recv, new_val );
  98         `}
  99
 100         fun <<( other : A ) import value, A `{
 101                 int new_val = A_value( recv ) << A_value( other );
 102                 A_value__assign( recv, new_val );
 103         `}
 104
 105         fun []( index : Int ) : A import A `{
 106                 return new_A( index );
 107         `}
 108
 109         fun []=( index : Int, value : A ) : A import A `{
 110                 return new_A( index + A_value( value ) );
 111         `}
 112
 113         redef fun to_s do return value.to_s
 114 end
 115
 116 print new A( 1 ) + new A( 10 ) # 11
 117 print new A( 10 ) - new A( 1 ) # 9
 118
 119 print new A( 2 ) * 11 # 22
 120 print new A( 33 ) / 11 # 3
 121
 122 #print new A( 44 ) == null # false
 123 print new A( 55 ) == 55 # false
 124 print new A( 33 ) == new A( 11 ) # false
 125 print new A( 22 ) == new A( 77 ) # false
 126 print new A( 11 ) == new A( 11 ) # true
 127
 128 print new A( 147 ) % new A( 12 ) # 3
 129 print new A( 4 ) <=> new A( 123 ) # 4096
 130
 131 print new A( 1 ) < new A( 100 ) # true
 132 print new A( 100 ) < new A( 100 ) # false
 133 print new A( 100 ) < new A( 1 ) # false
 134
 135 print new A( 1 ) > new A( 100 ) # false
 136 print new A( 100 ) > new A( 100 ) # false
 137 print new A( 100 ) > new A( 1 ) # true
 138
 139 print new A( 1 ) <= new A( 100 ) # true
 140 print new A( 100 ) <= new A( 100 ) # true
 141 print new A( 100 ) <= new A( 1 ) # false
 142
 143 print new A( 1 ) >= new A( 100 ) # false
 144 print new A( 100 ) >= new A( 100 ) # true
 145 print new A( 100 ) >= new A( 1 ) # true
 146
 147 #var x = new A( 1 )
 148 #x << new A( 5 )
 149 #print x # 16
 150
 151 #var y = new A( 32 )
 152 #y >> new A( 2 )
 153 #print y # 8
 154
 155 var a = new A( 456 )
 156 print a[ 52 ] # 52
 157
 158 a[ 74 ] = new A( 96 )
 159 print a # 96
 160