1 //------------------------------------------------------------------------------
3 https://github.com/vinniefalco/LuaBridge
5 Copyright 2012, Vinnie Falco <vinnie.falco@gmail.com>
7 License: The MIT License (http://www.opensource.org/licenses/mit-license.php)
9 Permission is hereby granted, free of charge, to any person obtaining a copy
10 of this software and associated documentation files (the "Software"), to deal
11 in the Software without restriction, including without limitation the rights
12 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 copies of the Software, and to permit persons to whom the Software is
14 furnished to do so, subject to the following conditions:
16 The above copyright notice and this permission notice shall be included in all
17 copies or substantial portions of the Software.
19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
27 //==============================================================================
29 /** Allows table iteration.
43 if (lua_next (m_L, -2))
57 explicit Iterator (LuaRef table)
58 : m_L (table.state ())
60 , m_key (table.state ()) // m_key is nil
61 , m_value (table.state ()) // m_value is nil
63 next (); // get the first (key, value) pair from table
66 lua_State* state () const
71 LuaRef operator* () const
76 LuaRef operator-> () const
81 Iterator& operator++ ()
85 // if the iterator reaches the end, do nothing
95 inline bool isNil () const
97 return m_key.isNil ();
100 inline LuaRef key () const
105 inline LuaRef value () const
111 // Don't use postfix increment, it is less efficient
112 Iterator operator++ (int);