1// Copyright 2011 Google Inc.
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28
29#include "c_gate.hpp"
30#include "state.ipp"
31
32
33/// Creates a new gateway to an existing C++ Lua state.
34///
35/// \param state_ The state to connect to.  This object must remain alive while
36///     the newly-constructed state_c_gate is alive.
37lutok::state_c_gate::state_c_gate(state& state_) :
38    _state(state_)
39{
40}
41
42
43/// Destructor.
44///
45/// Destroying this object has no implications on the life cycle of the Lua
46/// state.  Only the corresponding state object controls when the Lua state is
47/// closed.
48lutok::state_c_gate::~state_c_gate(void)
49{
50}
51
52
53/// Creates a C++ state for a C Lua state.
54///
55/// \warning The created state object does NOT own the C state.  You must take
56/// care to properly destroy the input lua_State when you are done with it to
57/// not leak resources.
58///
59/// \param raw_state The raw state to wrap temporarily.
60///
61/// \return The wrapped state without strong ownership on the input state.
62lutok::state
63lutok::state_c_gate::connect(lua_State* raw_state)
64{
65    return state(static_cast< void* >(raw_state));
66}
67
68
69/// Returns the C native Lua state.
70///
71/// \return A native lua_State object holding the Lua C API state.
72lua_State*
73lutok::state_c_gate::c_state(void)
74{
75    return static_cast< lua_State* >(_state.raw_state());
76}
77