comp.lang.ruby Google Group

Re: Why Thread.abort_on_exception = yes doesn't show errors?

2008-07-20T19:07:28Z

That's all intended, IIUC. Point #1 above implies point #3: suppose
threads _always_ reported exceptions. Then if you wrote a program to
take advantage of #1 by harvesting finished threads and handling their
exceptions in the main thread (or more generally the joining thread) you
would have spurious exception dumping. You have more control this way,

Why Thread.abort_on_exception = yes doesn't show errors?

2008-07-20T18:18:24Z

Hi, when Thread.abort_on_exception = yes I don't see any error log in the
screen. Note those cases:
case 1) It's seems correct:
---------------------
t = Thread.new {
sleep 1
qwe
t.abort_on_exception = true
puts "hello !!!"
sleep 2
puts "END"
---------------------
=>
hello !!!
test.rb:3: undefined local variable or method `qwe' for main:Object

[ANN] ForkAndReturn 0.1.1

2008-07-20T18:11:19Z

ForkAndReturn 0.1.1 is released.
ForkAndReturn implements a couple of methods that simplify
running a block of code in a subprocess. The result (Ruby
object or exception) of the block will be available in the
parent process.
ForkAndReturn also enriches Enumerable with a couple of methods
(e.g. Enumerable#concurrent_collect( )), in order to simplify

Re: Does "rescue" wihtour argument handle any kind of Exception or not?

2008-07-20T18:01:21Z

Assuming you are addressing a senior enjinere, not a neophyte, yes I could tell
the difference between an interrupt and the rest of my program running. It has
major side-effects; I stuck the sample code at the top of my current project.
Curiously, this is what the original code was doing:
begin
raise Interrupt

Re: [QUIZ] Records and Arrays (#170)

2008-07-20T17:40:58Z

my solution (including a simple test)
require 'ostruct'
require 'test/unit'
module Quiz170
def self.aor_to_roa(arr)
os = OpenStruct.new
arr.each do |o|
# another way to get the keys:
# keys = (o.methods - OpenStruct.new.methods).delete _if { |m|
m.match(/=$/) }
o.instance_variable_get("@tabl e").keys.each { |k|

Re: [QUIZ] Records and Arrays (#170)

2008-07-20T17:38:23Z

Matthew Moss ha scritto:
Hi all,
here's my solution:
require 'ostruct'
def aor_to_roa(arr)
hash = { }
arr.each do |record|
record.marshal_dump.each_key { |field| (hash[field] ||= []) <<
record.send(field) }
end
OpenStruct.new(hash)
end
def roa_to_aor(rec)
result = []
rec.marshal_dump.each do |field, array|

Ruby/Java strings solved the Ruby way

2008-07-20T17:36:27Z

Hello all!
I'm posting this here because it seem like a topic better discussed in
the general Ruby community.
JRuby allows you pretty seamless access to Java libraries through its
Java integration layer. You can pull in just about any class,
instantiate objects, call methods, and so on. In order to make this a

Re: Does "rescue" wihtour argument handle any kind of Exception or not?

2008-07-20T17:31:19Z

Did you expect your program to do anything after printing "rescued !!!" ?
R.

Re: [QUIZ] Records and Arrays (#170)

2008-07-20T17:25:24Z

I've gone for a fairly simple proxy based approach that doesn't do any
real converting. When converting an array of records we return a
wrapper object.
When you call (for example) name on that object you get back a proxy
object that just stores that name.
When you then call [3] on that proxy object, the proxy retrieves the

Re: JRuby 1.1.3 Released

2008-07-20T17:13:21Z

What would you like to see? It's pretty easy to download yourself and
run them too :)
- Charlie

Re: Records and Arrays (#170)

2008-07-20T16:55:29Z

Here's aor -> roa adapter that works with any class, it just sends the
methods to the base class as they come, so the behaviour for
exceptional conditions should be consistent with it, it also has a
persistent proxy, so the client can define extra functionality on it
if needed.
[link]

Re: [QUIZ] Records and Arrays (#170)

2008-07-20T16:49:34Z

Neat idea. I was working with jQuery a lot last week and thinking
along similar lines.
I chose to run with this idea:
class MapToEnum
instance_methods.each { |meth| undef_method(meth) unless meth =~ /
\A__/ }
def initialize(enum)
@enum = enum
end
def __enum__
@enum
end
def method_missing(meth, *args, &block)

Re: Does "rescue" wihtour argument handle any kind of Exception or not?

2008-07-20T16:34:58Z

Right here is your problem, same thing is happening to me (ruby 1.8.6
(2007-09-24 patchlevel 111) [i386-mswin32]) For certain reasons raise
throws ArgumentError (which then gets caught by single rescue) for
Interrupt without additional parameters.
This will probably work if you just need to raise Interrupt:

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