plugins/net.mograsim.logic.model.verilog/src/net/mograsim/logic/model/verilog/model/expressions/Expression.java

   1 package net.mograsim.logic.model.verilog.model.expressions;
   2
   3 import java.util.Set;
   4
   5 import net.mograsim.logic.model.verilog.model.signals.Signal;
   6
   7 public abstract class Expression
   8 {
   9         private final int width;
  10
  11         public Expression(int width)
  12         {
  13                 this.width = width;
  14
  15                 check();
  16         }
  17
  18         private void check()
  19         {
  20                 if (width < 0)
  21                         throw new IllegalArgumentException("Width can't be negative");
  22         }
  23
  24         public int getWidth()
  25         {
  26                 return width;
  27         }
  28
  29         public abstract String toVerilogCode();
  30
  31         public abstract Set<Signal> getReferencedSignals();
  32 }