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 import java.util.Set;
   5
   6 import net.mograsim.logic.model.verilog.model.IOPort;
   7 import net.mograsim.logic.model.verilog.model.Signal;
   8
   9 public class VerilogEmulatedModelPin
  10 {
  11         private final IOPort verilogPort;
  12         private final int portIndex;
  13         private final Set<PinNameBit> pinbits;
  14         private final Type type;
  15
  16         public VerilogEmulatedModelPin(IOPort verilogPort, int portIndex, Set<PinNameBit> pinbits, Type type)
  17         {
  18                 this.verilogPort = Objects.requireNonNull(verilogPort);
  19                 this.portIndex = portIndex;
  20                 this.pinbits = Set.copyOf(pinbits);
  21                 this.type = Objects.requireNonNull(type);
  22
  23                 check();
  24         }
  25
  26         private void check()
  27         {
  28                 if (verilogPort.getWidth() != 2)
  29                         throw new IllegalArgumentException("Every Verilog port has to have width 2");
  30                 if (portIndex < 0)
  31                         throw new IllegalArgumentException("Negative port index can't be negative");
  32                 switch (type)
  33                 {
  34                 case PRE:
  35                         if (verilogPort.getType() != Signal.Type.IO_INPUT)
  36                                 throw new IllegalArgumentException("A PRE pin has to be an input");
  37                         break;
  38                 case OUT:
  39                         if (verilogPort.getType() != Signal.Type.IO_OUTPUT)
  40                                 throw new IllegalArgumentException("A OUT pin has to be an output");
  41                         break;
  42                 case RES:
  43                         if (verilogPort.getType() != Signal.Type.IO_INPUT)
  44                                 throw new IllegalArgumentException("A RES pin has to be an input");
  45                         break;
  46                 default:
  47                         throw new IllegalStateException("Unknown enum constant: " + type);
  48                 }
  49         }
  50
  51         public IOPort getVerilogPort()
  52         {
  53                 return verilogPort;
  54         }
  55
  56         public int getPortIndex()
  57         {
  58                 return portIndex;
  59         }
  60
  61         public Set<PinNameBit> getPinbits()
  62         {
  63                 return pinbits;
  64         }
  65
  66         public Type getType()
  67         {
  68                 return type;
  69         }
  70
  71         @Override
  72         public int hashCode()
  73         {
  74                 final int prime = 31;
  75                 int result = 1;
  76                 result = prime * result + ((pinbits == null) ? 0 : pinbits.hashCode());
  77                 result = prime * result + portIndex;
  78                 result = prime * result + ((type == null) ? 0 : type.hashCode());
  79                 result = prime * result + ((verilogPort == null) ? 0 : verilogPort.hashCode());
  80                 return result;
  81         }
  82
  83         @Override
  84         public boolean equals(Object obj)
  85         {
  86                 if (this == obj)
  87                         return true;
  88                 if (obj == null)
  89                         return false;
  90                 if (getClass() != obj.getClass())
  91                         return false;
  92                 VerilogEmulatedModelPin other = (VerilogEmulatedModelPin) obj;
  93                 if (pinbits == null)
  94                 {
  95                         if (other.pinbits != null)
  96                                 return false;
  97                 } else if (!pinbits.equals(other.pinbits))
  98                         return false;
  99                 if (portIndex != other.portIndex)
 100                         return false;
 101                 if (type != other.type)
 102                         return false;
 103                 if (verilogPort == null)
 104                 {
 105                         if (other.verilogPort != null)
 106                                 return false;
 107                 } else if (!verilogPort.equals(other.verilogPort))
 108                         return false;
 109                 return true;
 110         }
 111
 112         public static enum Type
 113         {
 114                 PRE, OUT, RES;
 115         }
 116 }