From: Hal Fulton <rubyhacker@...>
Date: 2012-06-20T05:12:48+09:00
Subject: Re: Symbols and Strings...

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> > Freezing an object also reduces its contract.
>
> Kind of.  But I consider that a special case because freeze prevents
> all mutations but not other operations.  It also does not restrict the
> range of valid state - it just freezes it.
>
>
Hmm. If a Symbol is-a frozen String, how does that reduce the range
of valid state any more than a "real" frozen String? What operations
other than mutations are prohibited?

Hal

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<br><div class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"m=
argin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class=3D=
"im">
&gt; Freezing an object also reduces its contract.<br>
<br>
</div>Kind of. =A0But I consider that a special case because freeze prevent=
s<br>
all mutations but not other operations. =A0It also does not restrict the<br=
>
range of valid state - it just freezes it.<br>
<br></blockquote><br>Hmm. If a Symbol is-a frozen String, how does that red=
uce the range<br>of valid state any more than a &quot;real&quot; frozen Str=
ing? What operations<br>other than mutations are prohibited?<br><br>Hal<br>
<br></div>

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