[ruby-core:95951] [Ruby master Bug#16371] Inconsistent usage of Double splat operator
From:
dmytro.vasin@...
Date:
2019-11-26 06:50:08 UTC
List:
ruby-core #95951
Issue #16371 has been reported by dmytro.vasin (Dmytro Vasin).
----------------------------------------
Bug #16371: Inconsistent usage of Double splat operator
https://bugs.ruby-lang.org/issues/16371
* Author: dmytro.vasin (Dmytro Vasin)
* Status: Open
* Priority: Normal
* Assignee:
* Target version:
* ruby -v: 2.6.0
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN
----------------------------------------
Here is an issue with wierd behavior of a ruby double splat operator:
```
a = {a: 'a'}
b = {'b' => 'b'}
{x: 'x', **a}
#=> {:x=>"x", :a=>"a"}
{x: 'x', **b}
#=> TypeError (hash key "b" is not a Symbol)
```
But when I do that implicitly it works:
```
{x: 'x', **{'b' => 'b'}}
#=> {:x=>"x", "b"=>"b"}
```
In the same time:
```
{**{'b' => 'b'}}
# TypeError (hash key "b" is not a Symbol)
```
From my point of view, it definitely works inconsistently
Could you help with that example or give advice? ( maybe I incorrectly use it? )
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