Issue #15921 has been updated by nobu (Nobuyoshi Nakada).


ioquatix (Samuel Williams) wrote:
> If it's not clear, previous statement is evaluated like:
> 
> ```
> (Users.where(active: true) => active_users).where(type: "admin") => admin_users
> ```

It can't be higher precedence than `.`, or it will conflict with other syntaxes too much.
Rather it should be interpreted like as:
```ruby
admin_users = (active_users.where(type: "admin") = Users.where(active: true))
```
Though it is a syntax error at the parenthesis after `where` currently.


----------------------------------------
Feature #15921: R-assign (rightward-assignment) operator
https://bugs.ruby-lang.org/issues/15921#change-78649

* Author: nobu (Nobuyoshi Nakada)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
----------------------------------------
From https://bugs.ruby-lang.org/issues/15799#change-78465, proposal of the rightward-assignment operator by `=>`.

```
$ ./ruby -v -e '(1..).lazy.map {|x| x*2} => x' -e 'p x.first(10)'
ruby 2.7.0dev (2019-06-12T06:32:32Z feature/rassgn-assoc c928f06b79) [x86_64-darwin18]
last_commit=Rightward-assign by ASSOC
[2, 4, 6, 8, 10, 12, 14, 16, 18, 20]
```

https://github.com/nobu/ruby/tree/feature/rassgn-assoc



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