plugins/net.mograsim.logic.model.verilog/src/net/mograsim/logic/model/verilog/converter/VerilogEmulatedModelPin.java

   1 package net.mograsim.logic.model.verilog.converter;
   2
   3 import java.util.Objects;
   4
   5 import net.mograsim.logic.model.verilog.model.IOPort;
   6 import net.mograsim.logic.model.verilog.model.Signal;
   7
   8 public class VerilogEmulatedModelPin
   9 {
  10         private final IOPort verilogPort;
  11         private final int portIndex;
  12         private final PinNameBit pinbit;
  13         private final Type type;
  14
  15         public VerilogEmulatedModelPin(IOPort verilogPort, int portIndex, PinNameBit pinbit, Type type)
  16         {
  17                 this.verilogPort = Objects.requireNonNull(verilogPort);
  18                 this.portIndex = portIndex;
  19                 this.pinbit = Objects.requireNonNull(pinbit);
  20                 this.type = Objects.requireNonNull(type);
  21
  22                 check();
  23         }
  24
  25         private void check()
  26         {
  27                 if (verilogPort.getWidth() != 2)
  28                         throw new IllegalArgumentException("Every Verilog port has to have width 2");
  29                 if (portIndex < 0)
  30                         throw new IllegalArgumentException("Negative port index can't be negative");
  31                 switch (type)
  32                 {
  33                 case PRE:
  34                         if (verilogPort.getType() != Signal.Type.IO_INPUT)
  35                                 throw new IllegalArgumentException("A PRE pin has to be an input");
  36                         break;
  37                 case OUT:
  38                         if (verilogPort.getType() != Signal.Type.IO_OUTPUT)
  39                                 throw new IllegalArgumentException("A OUT pin has to be an output");
  40                         break;
  41                 case RES:
  42                         if (verilogPort.getType() != Signal.Type.IO_INPUT)
  43                                 throw new IllegalArgumentException("A RES pin has to be an input");
  44                         break;
  45                 default:
  46                         throw new IllegalStateException("Unknown enum constant: " + type);
  47                 }
  48         }
  49
  50         public IOPort getVerilogPort()
  51         {
  52                 return verilogPort;
  53         }
  54
  55         public int getPortIndex()
  56         {
  57                 return portIndex;
  58         }
  59
  60         public PinNameBit getPinbit()
  61         {
  62                 return pinbit;
  63         }
  64
  65         public Type getType()
  66         {
  67                 return type;
  68         }
  69
  70         @Override
  71         public int hashCode()
  72         {
  73                 final int prime = 31;
  74                 int result = 1;
  75                 result = prime * result + ((pinbit == null) ? 0 : pinbit.hashCode());
  76                 result = prime * result + portIndex;
  77                 result = prime * result + ((type == null) ? 0 : type.hashCode());
  78                 result = prime * result + ((verilogPort == null) ? 0 : verilogPort.hashCode());
  79                 return result;
  80         }
  81
  82         @Override
  83         public boolean equals(Object obj)
  84         {
  85                 if (this == obj)
  86                         return true;
  87                 if (obj == null)
  88                         return false;
  89                 if (getClass() != obj.getClass())
  90                         return false;
  91                 VerilogEmulatedModelPin other = (VerilogEmulatedModelPin) obj;
  92                 if (pinbit == null)
  93                 {
  94                         if (other.pinbit != null)
  95                                 return false;
  96                 } else if (!pinbit.equals(other.pinbit))
  97                         return false;
  98                 if (portIndex != other.portIndex)
  99                         return false;
 100                 if (type != other.type)
 101                         return false;
 102                 if (verilogPort == null)
 103                 {
 104                         if (other.verilogPort != null)
 105                                 return false;
 106                 } else if (!verilogPort.equals(other.verilogPort))
 107                         return false;
 108                 return true;
 109         }
 110
 111         public static enum Type
 112         {
 113                 PRE, OUT, RES;
 114         }
 115 }