コード例 #1
0
ファイル: InterfaceSorter.java プロジェクト: hnkien/proguard
  public void visitSignatureAttribute(Clazz clazz, SignatureAttribute signatureAttribute) {
    // Process the generic definitions, superclass, and implemented
    // interfaces.
    String signature = clazz.getString(signatureAttribute.u2signatureIndex);

    // Count the signature types.
    InternalTypeEnumeration internalTypeEnumeration = new InternalTypeEnumeration(signature);

    int count = 0;
    int interfacesCount = -1;
    while (internalTypeEnumeration.hasMoreTypes()) {
      String internalType = internalTypeEnumeration.nextType();

      count++;

      if (ClassUtil.isInternalClassType(internalType)) {
        interfacesCount++;
      }
    }

    // Put the signature types in an array.
    internalTypeEnumeration = new InternalTypeEnumeration(signature);

    String[] internalTypes = new String[count];

    for (int index = 0; index < count; index++) {
      String internalType = internalTypeEnumeration.nextType();

      internalTypes[index] = internalType;
    }

    // Sort the interface types in the array.
    Arrays.sort(internalTypes, count - interfacesCount, count);

    // Recompose the signature types in a string.
    StringBuffer newSignatureBuffer = new StringBuffer();

    for (int index = 0; index < count; index++) {
      // Is this not an interface type, or an interface type that isn't
      // a duplicate of the previous interface type?
      if (index < count - interfacesCount
          || !internalTypes[index].equals(internalTypes[index - 1])) {
        newSignatureBuffer.append(internalTypes[index]);
      }
    }

    String newSignature = newSignatureBuffer.toString();

    // Did the signature change?
    if (!newSignature.equals(signature)) {
      // Update the signature.
      ((Utf8Constant) ((ProgramClass) clazz).constantPool[signatureAttribute.u2signatureIndex])
          .setString(newSignatureBuffer.toString());

      // Clear the referenced classes.
      // TODO: Properly update the referenced classes.
      signatureAttribute.referencedClasses = null;
    }
  }
コード例 #2
0
  public void visitSignatureAttribute(
      Clazz clazz, Method method, SignatureAttribute signatureAttribute) {
    // Compute the new signature.
    String signature = clazz.getString(signatureAttribute.u2signatureIndex);
    String newSignature = shrinkDescriptor(method, signature);

    // Update the signature.
    signatureAttribute.u2signatureIndex =
        new ConstantPoolEditor((ProgramClass) clazz).addUtf8Constant(newSignature);

    // Update the referenced classes.
    signatureAttribute.referencedClasses =
        shrinkReferencedClasses(method, signature, signatureAttribute.referencedClasses);
  }