[ruby-core:70856] [Ruby trunk - Feature #11537] Introduce "Safe navigation operator"

Issue #11537 has been updated by Rodrigo Rosenfeld Rosas.


+1. Besides Groovy, CoffeeScript also allows that and I've used this feature a lot in my past days with Groovy and still use it all the time with CoffeeScript and have been missing this feature in Ruby for a long time.

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Feature #11537: Introduce "Safe navigation operator"
https://bugs.ruby-lang.org/issues/11537#change-54236

* Author: Hiroshi SHIBATA
* Status: Open
* Priority: Normal
* Assignee: Yukihiro Matsumoto
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I somtimes write following code with rails application:

```rb
u = User.find(id)
if u && u.profile && u.profile.thumbnails && u.profiles.thumbnails.large
  ...
```

or

```rb
# Use ActiveSupport
if u.try!(:profile).try!(:thumbnails).try!(:large)
 ...
```
I hope to write shortly above code. Groovy has above operator named "Safe navigation operator" with "?." syntax.
Ruby can't use "?." operator.

Can we use ".?" syntax. like this:

```rb
u = User.find(id)
u.?profile.?thumbnails.?large
```

Matz. How do you think about this?
  



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