Java Code Examples for org.objectweb.asm.Type#getArgumentsAndReturnSizes()

The following examples show how to use org.objectweb.asm.Type#getArgumentsAndReturnSizes() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example 1

Source File: BytecodeTypeInference.java From bazel with Apache License 2.0

6 votes

private void popDescriptor(String desc) {
  char c = desc.charAt(0);
  switch (c) {
    case '(':
      int argumentSize = (Type.getArgumentsAndReturnSizes(desc) >> 2) - 1;
      if (argumentSize > 0) {
        pop(argumentSize);
      }
      break;
    case 'J':
    case 'D':
      pop(2);
      break;
    default:
      pop(1);
      break;
  }
}

Example 2

Source File: BytecodeTypeInference.java From bazel with Apache License 2.0

5 votes

@Override
public void visitMethodInsn(int opcode, String owner, String name, String desc, boolean itf) {
  if (opcode == Opcodes.INVOKESPECIAL && "<init>".equals(name)) {
    int argumentSize = (Type.getArgumentsAndReturnSizes(desc) >> 2);
    InferredType receiverType = getTypeOfOperandFromTop(argumentSize - 1);
    if (receiverType.isUninitialized()) {
      InferredType realType = InferredType.create('L' + owner + ';');
      replaceUninitializedTypeInStack(receiverType, realType);
    }
  }
  switch (opcode) {
    case Opcodes.INVOKESPECIAL:
    case Opcodes.INVOKEVIRTUAL:
    case Opcodes.INVOKESTATIC:
    case Opcodes.INVOKEINTERFACE:
      popDescriptor(desc);
      if (opcode != Opcodes.INVOKESTATIC) {
        pop(); // Pop receiver.
      }
      pushDescriptor(desc);
      break;
    default:
      throw new RuntimeException(
          String.format(
              "Unhandled opcode %s, owner=%s, name=%s, desc=%s, itf=%s",
              opcode, owner, name, desc, itf));
  }
  super.visitMethodInsn(opcode, owner, name, desc, itf);
}

Example 3

Source File: Instrumenter.java From dacapobench with Apache License 2.0

4 votes

protected static int getArgumentSizes(int access, String desc) {
	return 
		(((access & Opcodes.ACC_STATIC) == 0)?1:0) +		
		Type.getArgumentsAndReturnSizes(desc) >> 2; 
}