plugins/net.mograsim.logic.model.verilog/src/net/mograsim/logic/model/verilog/model/signals/Signal.java

   1 package net.mograsim.logic.model.verilog.model.signals;
   2
   3 import java.util.Objects;
   4
   5 public abstract class Signal
   6 {
   7         private final Type type;
   8         private final String name;
   9         private final int width;
  10
  11         public Signal(Type type, String name, int width)
  12         {
  13                 this.type = Objects.requireNonNull(type);
  14                 this.name = Objects.requireNonNull(name);
  15                 this.width = width;
  16
  17                 check();
  18         }
  19
  20         private void check()
  21         {
  22                 if (width <= 0)
  23                         throw new IllegalArgumentException("Signal width is negative: " + width);
  24         }
  25
  26         public Type getType()
  27         {
  28                 return type;
  29         }
  30
  31         public String getName()
  32         {
  33                 return name;
  34         }
  35
  36         public int getWidth()
  37         {
  38                 return width;
  39         }
  40
  41         public String toReferenceVerilogCode()
  42         {
  43                 return name;
  44         }
  45
  46         @Override
  47         public String toString()
  48         {
  49                 return name + "[" + getWidth() + "]";
  50         }
  51
  52         @Override
  53         public int hashCode()
  54         {
  55                 final int prime = 31;
  56                 int result = 1;
  57                 result = prime * result + ((name == null) ? 0 : name.hashCode());
  58                 result = prime * result + ((type == null) ? 0 : type.hashCode());
  59                 result = prime * result + width;
  60                 return result;
  61         }
  62
  63         @Override
  64         public boolean equals(Object obj)
  65         {
  66                 if (this == obj)
  67                         return true;
  68                 if (obj == null)
  69                         return false;
  70                 if (getClass() != obj.getClass())
  71                         return false;
  72                 Signal other = (Signal) obj;
  73                 if (name == null)
  74                 {
  75                         if (other.name != null)
  76                                 return false;
  77                 } else if (!name.equals(other.name))
  78                         return false;
  79                 if (type != other.type)
  80                         return false;
  81                 if (width != other.width)
  82                         return false;
  83                 return true;
  84         }
  85
  86         public static enum Type
  87         {
  88                 WIRE, IO_INPUT, IO_OUTPUT;
  89         }
  90 }