J2CPS/FieldInfo.java

   1 /**********************************************************************/
   2 /*                    FieldInfo class for J2CPS                       */
   3 /*                                                                    */
   4 /*                      (c) copyright QUT                             */
   5 /**********************************************************************/
   6 package J2CPS;
   7
   8 import java.io.DataInputStream;
   9 import java.io.IOException;
  10
  11
  12 public class FieldInfo extends MemberInfo {
  13
  14   Object constVal;
  15   public TypeDesc type;
  16   public int typeFixUp = 0;
  17
  18   public FieldInfo(ConstantPool cp, DataInputStream stream,
  19                    ClassDesc thisClass) throws IOException {
  20
  21     super(cp,stream,thisClass);
  22     type = TypeDesc.GetType(signature,0);
  23     thisClass.TryImport(type);
  24   }
  25
  26   public FieldInfo(ClassDesc cl,int acc,String nam,TypeDesc typ,Object cVal) {
  27     super(cl,acc,nam);
  28     type = typ;
  29     constVal = cVal;
  30   }
  31
  32 //  @Override
  33 //  public void AddImport(ClassDesc thisClass) {
  34 //    if (type instanceof ClassDesc) { thisClass.AddImport((ClassDesc)type); }
  35 //  }
  36
  37   public void GetConstValueAttribute (ConstantPool cp, DataInputStream stream)
  38                                                             throws IOException {
  39     int attLen = stream.readInt();
  40     constVal = cp.Get(stream.readUnsignedShort());
  41     if (constVal instanceof StringRef) {
  42       constVal = ((StringRef)constVal).GetString();
  43     }
  44   }
  45
  46   public Object GetConstVal() {
  47     return constVal;
  48   }
  49
  50   public boolean isConstant() {
  51     return ((constVal != null) && ConstantPool.isFinal(accessFlags) &&
  52             ConstantPool.isStatic(accessFlags) &&
  53             (ConstantPool.isPublic(accessFlags) ||
  54              ConstantPool.isProtected(accessFlags)));
  55   }
  56
  57   @Override
  58   public String toString() {
  59     if (constVal == null) {
  60       return ConstantPool.GetAccessString(accessFlags) + " " +
  61              signature + " " + name;
  62     } else {
  63       return ConstantPool.GetAccessString(accessFlags) + " " +
  64              signature + " " + name + " = " + constVal.toString();
  65     }
  66   }
  67
  68 }