orelang.operator.EqualOperator source code

1 module orelang.operator.EqualOperator;
2 import orelang.operator.IOperator,
3        orelang.Engine,
4        orelang.Value;
5 
6 class EqualOperator : IOperator {
7   /**
8    * call
9    */
10   public Value call(Engine engine, Value[] args) {
11     return new Value(engine.eval(args[0]) == engine.eval(args[1]));
12   }
13 }
14 
15 class NotEqualOperator : IOperator {
16   /**
17    * call
18    */
19   public Value call(Engine engine, Value[] args) {
20     return new Value(engine.eval(args[0]) != engine.eval(args[1]));
21   }
22 }
23 
24 class LessOperator : IOperator {
25   /**
26    * call
27    */
28   public Value call(Engine engine, Value[] args) {
29     return new Value(engine.eval(args[0]) < engine.eval(args[1]));
30   }
31 }
32 
33 class GreatOperator : IOperator {
34   /**
35    * call
36    */
37   public Value call(Engine engine, Value[] args) {
38     return new Value(engine.eval(args[0]) > engine.eval(args[1]));
39   }
40 }
41 
42 class LEqOperator : IOperator {
43   /**
44    * call
45    */
46   public Value call(Engine engine, Value[] args) {
47     return new Value(engine.eval(args[0]) <= engine.eval(args[1]));
48   }
49 }
50 
51 class GEqOperator : IOperator {
52   /**
53    * call
54    */
55   public Value call(Engine engine, Value[] args) {
56     return new Value(engine.eval(args[0]) >= engine.eval(args[1]));
57   }
58 }