Changeset 296 for trunk/src/lua/lua_state.cc

Timestamp:

07/31/14 08:08:31 (11 years ago)

Author:

epyon

Message:

• lua::table_guard is_* utility functions
• minor tweaks

File:

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

trunk/src/lua/lua_state.cc

@@ -209 +209 @@
         return result;
 }
+
+bool nv::lua::table_guard::is_table( const std::string& element )
+{
+        lua_getfield( m_state, -1, element.c_str() );
+        bool result = lua_type( m_state, -1 ) == LUA_TTABLE;
+        lua_pop( m_state, 1 );
+        return result;
+}
+
+bool nv::lua::table_guard::is_number( const std::string& element )
+{
+        lua_getfield( m_state, -1, element.c_str() );
+        bool result = lua_type( m_state, -1 ) == LUA_TNUMBER;
+        lua_pop( m_state, 1 );
+        return result;
+}
+
+bool nv::lua::table_guard::is_boolean( const std::string& element )
+{
+        lua_getfield( m_state, -1, element.c_str() );
+        bool result = lua_type( m_state, -1 ) == LUA_TBOOLEAN;
+        lua_pop( m_state, 1 );
+        return result;
+}
+
+bool nv::lua::table_guard::is_string( const std::string& element )
+{
+        lua_getfield( m_state, -1, element.c_str() );
+        bool result = lua_type( m_state, -1 ) == LUA_TSTRING;
+        lua_pop( m_state, 1 );
+        return result;
+}
+
 
 // state