| /* |
| * $Id: JavaFunction.java,v 1.1 2008/10/28 16:36:48 anaef Exp $ |
| * See LICENSE.txt for license terms. |
| */ |
| |
| package com.naef.jnlua; |
| |
| /** |
| * Provides a Lua function implemented in Java. |
| */ |
| public interface JavaFunction { |
| /** |
| * Invokes this Java function. The function arguments are on the stack. The |
| * method returns the number of values on the stack which constitute the |
| * return values of this function. |
| * |
| * <p> |
| * Java functions should indicate application errors by returning |
| * appropriate error codes to the caller. Programming errors should be |
| * indicated by throwing a runtime exception. |
| * </p> |
| * |
| * @param luaState |
| * the Lua state this function has been invoked on |
| * @return the number of return values |
| */ |
| public int invoke(LuaState luaState); |
| } |
