From: mail@...
Date: 2019-05-24T09:08:25+00:00
Subject: [ruby-core:92817] [Ruby trunk Bug#15872] CSV.parse omits close call when block is given – intended or bug?

Issue #15872 has been reported by sos4nt (Stefan Sch����ler).

----------------------------------------
Bug #15872: CSV.parse omits close call when block is given ��� intended or bug?
https://bugs.ruby-lang.org/issues/15872

* Author: sos4nt (Stefan Sch����ler)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
* ruby -v: 
* Backport: 2.4: UNKNOWN, 2.5: UNKNOWN, 2.6: UNKNOWN
----------------------------------------
The current implementation of `CSV.parse` doesn't call `close` when a block is given:
```ruby
def self.parse(*args, &block)
  csv = new(*args)

  return csv.each(&block) if block_given?

  begin
    csv.read
  ensure
    csv.close  # <- never gets here if block is given
  end
end

```

A possible fix would be:

```ruby
def self.parse(*args, &block)
  csv = new(*args)
  if block_given?
    csv.each(&block) 
  else
    csv.read
  end
ensure
  csv.close
end
```

But I'm not sure if this behavior might be intended, given that Ruby's CSV library is quite mature.

Am I missing a use case or is this actually a bug?



-- 
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