Should the rescue modifier take a block?

ruby-talk
1

Would something like this make sense?

mymeth(myargs) rescue { puts “mymeth failed”; exit }

It’s not current syntax. I’m asking whether
it would make sense to add it.

Hal

···

–
Hal Fulton
hal9000@hypermetrics.com

2

Hal E. Fulton wrote:

Would something like this make sense?

mymeth(myargs) rescue { puts “mymeth failed”; exit }

It’s not current syntax. I’m asking whether
it would make sense to add it.

Not really an answer to your question, but there is this:

def boom
raise
end

boom rescue begin
puts “boom failed”
exit
end

puts “Darn, it didn’t work”

It works, needless to say. Actually I’ve always been a bit uncomfortable
with using begin/end for this and for “begin…end while …”. It seems
like do…end and {…} should be doing that job, and begin…end should
be just for exceptions. But I don’t lose sleep over it.

3

I thought rescue modifier was for the current line.
Isn’t there a conflict when there’s a rescue in the
method def ?

def mymeth(args)
MATH::PI / args
#rescue # ← uncomment & re-run
puts “Do you mean; insert/replace me ?”
end

mymeth(0) rescue begin
puts “This line failed 1”

exit

end

mymeth(undefined) rescue begin
puts “This line failed 2”

exit

end

2 pence,

daz

···

“Hal E. Fulton” hal9000@hypermetrics.com wrote:

Would something like this make sense?

mymeth(myargs) rescue { puts “mymeth failed”; exit }

It’s not current syntax. I’m asking whether
it would make sense to add it.

Hal

–
Hal Fulton
hal9000@hypermetrics.com