From: Tim Hunter <cyclists@...>
Date: 2002-12-25T04:39:04+09:00
Subject: rescue statement modifier behavior change in 1.8.0

So I'm spending my Christmas Eve trying out new versions of Ruby. What a
Christmas present!

The following program works without error in 1.6.8. With the
1.8.0preview1, the rescue statement modifier doesn't catch the IndexError.
The program terminates with the message:

[tim:~]$ ruby foo.rb
foo.rb:4:in `bar=': bar too big (IndexError)
        from foo.rb:16

Is this a deliberate change in behavior?

Here's the program:

class Foo
    def bar=(b)
        if b > 10
            raise IndexError, "bar too big"
        end
    end
end

foo = Foo.new
begin
    foo.bar = 11
rescue
    foo.bar=10
end

foo.bar = 11 rescue 10
exit