ruby-core

Issue #10856 has been updated by marcandre (Marc-Andre Lafortune).

Status changed from Closed to Open
Assignee set to nobu (Nobuyoshi Nakada)
Target version set to 2.5

This is not actually fixed.

```
def foo
  puts "OK"
end

options = {}
foo(**options) # => OK  (In 2.5.0preview1)
args = []
foo(*args, **options) # => ArgumentError: wrong number of arguments (given 1, expected 0)
```

The second call should also output "Ok".

Hopefully Nobu can crack this before 2.5.0

----------------------------------------
Bug #10856: Splat with empty keyword args gives unexpected results
https://bugs.ruby-lang.org/issues/10856#change-67666

* Author: seantheprogrammer (Sean Griffin)
* Status: Open
* Priority: Normal
* Assignee: nobu (Nobuyoshi Nakada)
* Target version: 2.5
* ruby -v: ruby 2.2.0p0 (2014-12-25 revision 49005) [x86_64-darwin13]
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN, 2.2: UNKNOWN
----------------------------------------
When keyword args are passed to a method with splat, and there are no keyword args, an empty hash is sent. I would expect no argument to be given, same as splat with an empty array. For example:

```ruby
def foo
end

foo(**{})
```

This causes an argument error, as an empty hash is passed. I would expect the same behavior as

```ruby
def foo
end

foo(*[])
```



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