final void pushAll(TypeStack tstack) {
final void pushAll(ItemFactory ifac, TypeStack tstack) {
	final void pushAll(TypeStack tstack) {		if ((tstack != null) && !tstack.isEmpty()) {			final int size = tstack.size();			for (int i = 0; i < size; i++) {				final int type = tstack.getType(i);				final Item item = VirtualStack.createStack(type);				push(item);				if (VirtualStack.checkOperandStack) {					operandStack.push(item);				}			}		}	}