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Dir (objects introspection like Python's dir)

/ Published in: Lua
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  1. --- Returns string representation of object obj
  2. -- @return String representation of obj
  3. function dir(obj,level)
  4.     local s,t = '', type(obj)
  5.  
  6.     level = level or '  '
  7.  
  8.     if (t=='nil') or (t=='boolean') or (t=='number') or (t=='string') then
  9.         s = tostring(obj)
  10.         if t=='string' then
  11.             s = '"' .. s .. '"'
  12.         end
  13.     elseif t=='function' then s='function'
  14.     elseif t=='userdata' then s='userdata'
  15.     elseif t=='thread' then s='thread'
  16.     elseif t=='table' then
  17.         s = '{'
  18.         for k,v in pairs(obj) do
  19.             local k_str = tostring(k)
  20.             if type(k)=='string' then
  21.                 k_str = '["' .. k_str .. '"]'
  22.             end
  23.             s = s .. k_str .. ' = ' .. dir(v,level .. level) .. ', '
  24.         end
  25.         s = string.sub(s, 1, -3)
  26.         s = s .. '}'
  27.     end
  28.  
  29.     return s
  30. end

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