Glenn Maynard
0a0ad8714c
show the filename when a full script has an error use LuaManager::RunExpression in LuaExpression
147 lines
3.7 KiB
C++
147 lines
3.7 KiB
C++
#include "global.h"
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#include "LuaReference.h"
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#include "LuaManager.h"
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#include "LuaBinding.h"
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#include "Foreach.h"
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#include "SubscriptionManager.h"
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template<>
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set<LuaReference*>* SubscriptionManager<LuaReference>::s_pSubscribers = NULL;
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LuaReference::LuaReference()
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{
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m_iReference = LUA_NOREF;
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SubscriptionManager<LuaReference>::Subscribe( this );
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}
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LuaReference::~LuaReference()
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{
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Unregister();
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SubscriptionManager<LuaReference>::Unsubscribe( this );
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}
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LuaReference::LuaReference( const LuaReference &cpy )
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{
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SubscriptionManager<LuaReference>::Subscribe( this );
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/* Make a new reference. */
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lua_rawgeti( LUA->L, LUA_REGISTRYINDEX, cpy.m_iReference );
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m_iReference = luaL_ref( LUA->L, LUA_REGISTRYINDEX );
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}
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LuaReference &LuaReference::operator=( const LuaReference &cpy )
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{
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if( this == &cpy )
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return *this;
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Unregister();
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/* Make a new reference. */
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lua_rawgeti( LUA->L, LUA_REGISTRYINDEX, cpy.m_iReference );
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m_iReference = luaL_ref( LUA->L, LUA_REGISTRYINDEX );
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return *this;
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}
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void LuaReference::SetFromStack()
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{
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Unregister();
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m_iReference = luaL_ref( LUA->L, LUA_REGISTRYINDEX );
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}
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void LuaReference::SetFromNil()
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{
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Unregister();
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m_iReference = LUA_REFNIL;
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}
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void LuaReference::PushSelf( lua_State *L ) const
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{
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lua_rawgeti( LUA->L, LUA_REGISTRYINDEX, m_iReference );
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}
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bool LuaReference::IsSet() const
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{
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return m_iReference != LUA_NOREF;
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}
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int LuaReference::GetLuaType() const
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{
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this->PushSelf( LUA->L );
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int iRet = lua_type( LUA->L, -1 );
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lua_pop( LUA->L, 1 );
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return iRet;
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}
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void LuaReference::Register()
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{
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}
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void LuaReference::Unregister()
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{
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if( LUA == NULL )
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return; // nothing to do
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luaL_unref( LUA->L, LUA_REGISTRYINDEX, m_iReference );
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m_iReference = LUA_NOREF;
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}
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void LuaReference::ReRegisterAll()
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{
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if( SubscriptionManager<LuaReference>::s_pSubscribers == NULL )
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return;
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FOREACHS( LuaReference*, *SubscriptionManager<LuaReference>::s_pSubscribers, p )
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(*p)->ReRegister();
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}
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void LuaReference::ReRegister()
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{
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/* When this is called, the Lua state has been wiped. Don't try to unregister our
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* old function reference, since it's already gone (and the number may point
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* somewhere else). */
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m_iReference = LUA_NOREF;
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Register();
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}
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void LuaExpression::SetFromExpression( const CString &sExpression )
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{
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m_sExpression = sExpression;
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Register();
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}
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void LuaExpression::Register()
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{
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LUA->RunExpression( m_sExpression );
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/* Store the result. */
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this->SetFromStack();
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}
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/*
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* (c) 2005 Glenn Maynard, Chris Danford
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, and/or sell copies of the Software, and to permit persons to
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* whom the Software is furnished to do so, provided that the above
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* copyright notice(s) and this permission notice appear in all copies of
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* the Software and that both the above copyright notice(s) and this
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* permission notice appear in supporting documentation.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF
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* THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
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* INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
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* OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
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* OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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