ruby-core

Issue #10856 has been updated by mame (Yusuke Endoh).


Another presentation of the bug:

```
def foo; end
foo(*[], {}) #=> does not raise an exception in 2.6
```

----------------------------------------
Bug #10856: Splat with empty keyword args gives unexpected results
https://bugs.ruby-lang.org/issues/10856#change-77099

* Author: seantheprogrammer (Sean Griffin)
* Status: Assigned
* Priority: Normal
* Assignee: nobu (Nobuyoshi Nakada)
* Target version: 2.7
* 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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