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  3. Equality of dbObjects

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Equality of dbObjects

tweeks
tweeks over 13 years ago

Are dbobjects ever equal?

I did a test, creating two labels that are exact copies of eachother: same lpp, same xy, etc. Watch what happens:

> forall(prop label1->? get(label1 prop) == get(label2 prop))
 t
> label1 == label2 
 nil 

Looks like equality is not implemented for labels?

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  • tweeks
    tweeks over 13 years ago

    WIthAutoHash: Greatest.  Macro. Ever. 

     Seriously, that's really cool.  :)  

     

    I thought about using let()s to shadow builtin ops like this, but I was afraid to try it in production code.  I assumed nobody ever did crazy stuff like that, so it might reveal bugs in the interpreter  (as happend when I attempted to foldr the and() function over a list and exposed a rare VM bug).  But if a Cadence developer says it's OK, then there's no reason not to start doing it, right? ;)

    Thanks a lot!

     

     

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  • tweeks
    tweeks over 13 years ago

    WIthAutoHash: Greatest.  Macro. Ever. 

     Seriously, that's really cool.  :)  

     

    I thought about using let()s to shadow builtin ops like this, but I was afraid to try it in production code.  I assumed nobody ever did crazy stuff like that, so it might reveal bugs in the interpreter  (as happend when I attempted to foldr the and() function over a list and exposed a rare VM bug).  But if a Cadence developer says it's OK, then there's no reason not to start doing it, right? ;)

    Thanks a lot!

     

     

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