[ruby-core:86514] [Ruby trunk Feature#14672] Introdice a Date.safe_parse method

Issue #14672 has been updated by ahorek (Pavel Rosick箪).


http://blog.honeybadger.io/benchmarking-exceptions-in-ruby-yep-theyre-slow

exceptions are used a lot in parsers
https://github.com/ruby/csv/blob/master/lib/csv.rb#L342
having an oportunity to skip exception handing could also improve performance

I prefer an argument version, btw. sockets already have simmilar logic since ruby 2.3
```ruby
@socket.connect_nonblock(@addr, exception: false)
```

example
```ruby
Date.parse(some_value, exception: false) || Date.new(2018,1,1)
```

----------------------------------------
Feature #14672: Introdice a Date.safe_parse method
https://bugs.ruby-lang.org/issues/14672#change-71455

* Author: coorasse (Alessandro Rodi)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
----------------------------------------
This feature request is about a Date.safe_parse method.
The method should call the original Date.parse method but avoid raising an exception and returning a fallback value instead.
An implementation in ActiveSupport has been proposed here: https://github.com/rails/rails/pull/32503/files.
This would avoid the necessity to rescue possible Exceptions everytime.

See:

```ruby
Date.safe_parse(nil) 
=> # nil

Date.safe_parse("") 
=> # nil

fallback = Date.new(2018,1,1)
Date.safe_parse(nil, fallback)
=> # #<Date: 2018-01-01>
```



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