Is it faster to use rawequal, rawset, rawget

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#1

Is it better to use these functions instead of using t[1] = 2
If so how much does it save?

#2

The purpose of these functions is in no way of performance. It’s solely to set, get, and check the equality of a table without invoking the corresponding metamethods. For example, using rawget will successfully get a certain element from a table without the __index metamethod firing. This can avoid stack overflows where the method firings within itself, sort of like a loop.

Check out the DevHub for more info.

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#3

I think you don’t understand too much, rawset() will not fire __newindex because doing
t[1] = 2 in __newindex will cause stack overflow
example;

local t = setmetatable({},{
  __index = function(no)
end
__newindex = function(self,i,v)
          self[i] = v -- stack overflow
         rawset(self,i,v) -- no stack overflow
   end
})
t.hi = true
#4

So its only purpose is for metatables ?

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#5

It’s main purpose is for exploiters to change variables locked by constant declares

#6

Yes, it’s only purpose it’s for metatables…

#7

Thats not its main purpose, but metatables were never meant to add ‘security’ to your code from other people modifying it

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