Freezing OpenStruct

[Yukihiro Matsumoto]

Hi,

In message "Freezing OpenStruct"
on 03/08/26, Gavin Sinclair <gsinclair@soyabean.com.au> writes:

|The irb session below demonstrates that OpenStruct objects (part of
|the standard library) allow modification after a #freeze. Is this
|desirable?

I forgot to check frozen status. Thanks.

matz.

[Florian Frank]

On 2003-08-26 21:39:34 +0900, Gavin Sinclair wrote:

> The irb session below demonstrates that OpenStruct objects (part of
> the standard library) allow modification after a #freeze. Is this
> desirable?

It don't think so. A quick fix would be that:

Index: ostruct.rb
================================================== =================
RCS file: /src/ruby/lib/ostruct.rb,v
retrieving revision 1.6
diff -u -p -r1.6 ostruct.rb
--- ostruct.rb 18 Nov 2002 20:09:46 -0000 1.6
+++ ostruct.rb 26 Aug 2003 15:05:08 -0000
@@ -38,6 +38,11 @@ class OpenStruct
@table.delete name.to_sym
end

+ def freeze
+ super
+ @table.freeze
+ end
+
def inspect
str = "<#{self.class}"
for k,v in @table

--
Simplicity is prerequisite for reliability. [Handwritten annotation]
-- Edsger Dijkstra, How do we tell truths that might hurt?