public byte[] save(ScriptDefinition script)
	{
		int[] instructions = script.getInstructions();
		int[] intOperands = script.getIntOperands();
		String[] stringOperands = script.getStringOperands();
		Map<Integer, Integer>[] switches = script.getSwitches();

		OutputStream out = new OutputStream();
		out.writeByte(0); // null string
		for (int i = 0; i < instructions.length; ++i)
		{
			int opcode = instructions[i];
			out.writeShort(opcode);
			if (opcode == SCONST)
			{
				out.writeString(stringOperands[i]);
			}
			else if (opcode < 100 && opcode != RETURN && opcode != POP_INT && opcode != POP_STRING)
			{
				out.writeInt(intOperands[i]);
			}
			else
			{
				out.writeByte(intOperands[i]);
			}
		}
		out.writeInt(instructions.length);
		out.writeShort(script.getLocalIntCount());
		out.writeShort(script.getLocalStringCount());
		out.writeShort(script.getIntStackCount());
		out.writeShort(script.getStringStackCount());
		int switchStart = out.getOffset();
		if (switches == null)
		{
			out.writeByte(0);
		}
		else
		{
			out.writeByte(switches.length);
			for (Map<Integer, Integer> s : switches)
			{
				out.writeShort(s.size());
				for (Entry<Integer, Integer> e : s.entrySet())
				{
					out.writeInt(e.getKey());
					out.writeInt(e.getValue());
				}
			}
		}
		int switchLength = out.getOffset() - switchStart;
		out.writeShort(switchLength);
		return out.flip();
	}
@Test
	public void testSave() throws IOException
	{
		Instructions instructions = new Instructions();
		instructions.init();
		ScriptDefinition script = new Assembler(instructions).assemble(getClass().getResourceAsStream(SCRIPT_RESOURCE));
		byte[] saved = new ScriptSaver().save(script);
		ScriptDefinition loadedScripot = new ScriptLoader().load(91, saved);
		assertEquals(script, loadedScripot);
	}