Issue #11105 has been updated by Shugo Maeda.


Yukihiro Matsumoto wrote:
> What if we have variables with same name and different prefixes? e.g.
> 
> a = 1
> @a = 2
> $a = 3

The last one is used with warnings:

```
lexington:ruby$ cat x.rb
a = 1
@a = 2
$a = 3
p({a, @a, $a})
lexington:ruby$ ./ruby x.rb
x.rb:4: warning: duplicated key at line 4 ignored: :a
x.rb:4: warning: duplicated key at line 4 ignored: :a
{:a=>3}
```


----------------------------------------
Feature #11105: ES6-like hash literals
https://bugs.ruby-lang.org/issues/11105#change-52284

* Author: Shugo Maeda
* Status: Open
* Priority: Normal
* Assignee: 
----------------------------------------
Why not support ECMAScript6-like hash literals?

For example,

    {x, y}

is equivalent to:

    {x: x, y: y}

For convenience, the prefix of global, instance, and class variables should be removed from the key name as follows:

    a = 1
    B = 2
    $c = 3
    @d = 4
    @@e = 5
    p({a, B, $c, @d, @@e, f: 6})
    #=> {:a=>1, :B=>2, :c=>3, :d=>4, :e=>5, :f=>6}


---Files--------------------------------
0001-support-ES6-like-hash-literals.patch (3.88 KB)


-- 
https://bugs.ruby-lang.org/