Immutability by default [was: Re: Tidy auto [Was: Re: @disable]]

[Leandro Lucarella]

Adam D. Ruppe, el 19 de enero a las 14:12 me escribiste:
> On Tue, Jan 19, 2010 at 02:44:29PM -0300, Leandro Lucarella wrote:
> > I don't understand, you are vulnerable to that kind of bugs now too:
> > 
> > const receiver = 1;
> > 
> > const reciever = 2; // meant to rebind, but spelling error goes unnoticed by compiler
> 
> Right, but it is more of a conscious effort to type const X = x; than it
> is to type X := x;.
> 
> If you wanted to do immutable by default, wouldn't that means you get
> yourself in the habit of typing := instead of =? That's not the same as
> training yourself to type const (or immutable) where you would have typed
> auto before.

But := is a declaration, = is an expression! You will use := all over the
places for *declaring* stuff, not for assigning stuff.

> Maybe I don't understand the proposal :S

I think you understand the proposal, we just don't agree on how
error-prone it would be ;)

-- 
Leandro Lucarella (AKA luca)                     http://llucax.com.ar/
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