From: "nobu (Nobuyoshi Nakada) via ruby-core" <ruby-core@...>
Date: 2025-06-10T08:56:03+00:00
Subject: [ruby-core:122507] [Ruby Feature#21435] Kernel#optional as a conditional #then

Issue #21435 has been updated by nobu (Nobuyoshi Nakada).


I agree that the pattern sometimes appears.
But the name `optional` feels kind of ambiguous or too generic, to me.

Alexander.Senko (Alexander Senko) wrote:
> Reference implementation:
> 
> ```ruby
> # Yields self to the block and returns the result of the block if it���s
> # truthy, and self otherwise.
> def optional
>   yield(self) or self
> end
> ```

Regarding `respond_to?`, IIRC, isn't ActiveSupport's `try` based on it?


----------------------------------------
Feature #21435: Kernel#optional as a conditional #then
https://bugs.ruby-lang.org/issues/21435#change-113730

* Author: Alexander.Senko (Alexander Senko)
* Status: Open
----------------------------------------
When chaining, I need sometimes to apply some changes conditionally, like this:
```ruby
@record = Record.find(record_id)
  .then { it.respond_to?(:decorate) ? it.decorate : it }
```

It would be great to DRY it a bit:
```ruby
@record = Record.find(record_id)
  .optional { it.decorate if it.respond_to? :decorate }
```

Reference implementation:
```ruby
# Yields self to the block and returns the result of the block if it���s
# truthy, and self otherwise.
def optional
  tap do
    result = yield(self) or next

    break result
  end
end
```

The name is discussible.



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