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On 23/08/14 08:57 AM, Thiago L. wrote:


On 23/08/14 02:27 AM, Coroutines wrote:

On Fri, Aug 22, 2014 at 3:59 PM, Thiago L. <fakedme@gmail.com> wrote:

Here's an example:

Lua:
rawequals(a,b)

gettable "rawequals" 0 1
<get a>
<get b>
call 1 2
or basically, get "rawequals" from a table, get a, get b, call "rawequals" 

JS:
a === b

or basically, get a, get b, compare

Can we get a === operator and OP_RAWEQ?

(And OP_RAWGET and OP_RAWSET but idk what syntax/operators they would
use...)


I am super confused by what you're asking.

Lua's == is like Javascript's === in that Lua doesn't allow any type
inequality between what's on the left and right-hand side.  It is
already a rawequal().


You can override/overload == tho...
Eh the mailing list is dead (but I can still see the messages... you can call it hax :P)
Let me explain that a bit better: you can set an __eq metamethod that lets you compare your special object to anything in any way you want (which may be useful for (for example) a big number library), but when you want a raweq, you have to use rawequal() (or is it rawequals? can't remember), which's a C function call, and we all know function calls can be expensive. Instead I want an OP_RAWEQ bytecode, and "a === b" to use it.