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lua:meta [2016/07/14 08:49] – [Metamethods] niziakprogramming:lua:meta [2020/07/03 09:48] (current) – ↷ Page moved from lua:meta to programming:lua:meta niziak
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 ===== Metamethods ===== ===== Metamethods =====
 +[[http://lua-users.org/wiki/MetatableEvents]]
 +
 +[[http://lua-users.org/wiki/MetamethodsTutorial]]  
 +
   * **%%__index%%** - is called when key in table is accessed. **%%__index%%** can be a function or another table - fallback table. Fallback table can have metatable which points to another fallback table and so on. It is possible to create very long fallback table chain.   * **%%__index%%** - is called when key in table is accessed. **%%__index%%** can be a function or another table - fallback table. Fallback table can have metatable which points to another fallback table and so on. It is possible to create very long fallback table chain.
     * **%%__index%% = function (table, key)**, return value of fucntion is returned as result.     * **%%__index%% = function (table, key)**, return value of fucntion is returned as result.