Changeset 341 for trunk/src/lua

Timestamp:

09/25/14 00:16:14 (11 years ago)

Author:

epyon

Message:

• lua_state - lua component support
• lua_state - call function from lua::ref
• lua_state - minor enhancements

File:

• trunk/src/lua/lua_state.cc (modified) (1 diff)

trunk/src/lua/lua_state.cc

@@ -515 +515 @@
 }
 
+nv::lua::ref nv::lua::state::register_handle_component_impl( const std::string& id, bool empty )
+{
+        int args = empty ? 1 : 2;
+        NV_LUA_STACK_ASSERT( m_state, -args );
+
+        if ( lua_isnil( m_state, -1 ) || (!empty && lua_isnil( m_state, -2 )) )
+        {
+                lua_pop( m_state, args );
+                return ref();
+        }
+        if (empty)
+                lua_createtable( m_state, 0, 0 );
+        else
+                nlua_deepcopy( m_state, -2 );
+        lua_pushstring( m_state, id.c_str() );
+        lua_pushvalue( m_state, -2 );
+        lua_rawset( m_state, -4 );
+        lua_replace( m_state, -2 );
+        ref result = lua::ref( luaL_ref( m_state, LUA_REGISTRYINDEX ) );
+        if (!empty) lua_pop( m_state, 1 );
+        return result;
+}
+
+void nv::lua::state::unregister_handle_component_impl( const std::string& id )
+{
+        NV_LUA_STACK_ASSERT( m_state, -1 );
+
+        if ( lua_isnil( m_state, -1 ) )
+        {
+                lua_pop( m_state, 1 );
+                return;
+        }
+        lua_pushstring( m_state, id.c_str() );
+        lua_pushnil( m_state );
+        lua_rawset( m_state, -3 );
+        lua_pop( m_state, 1 );
+}
+
+void nv::lua::state::register_singleton( const char* name, void* o )
+{
+        if ( o == nullptr ) return;
+        stack_guard guard( this );
+        lua_getglobal( m_state, name );
+        if ( lua_isnil( m_state, -1 ) )
+        {
+                NV_THROW( runtime_error, std::string( name ) + " type not registered!" );
+        }
+        deep_pointer_copy( -1, o );
+        lua_setglobal( m_state, name );
+}
+