Issue #14909 has been updated by jeremyevans0 (Jeremy Evans).
Status changed from Feedback to Closed
The changes in #14183 solve this issue. You will now get warnings:
```ruby
my_func(Test.new)
# (irb):101: warning: The last argument is used as the keyword parameter
# (irb):92: warning: for `my_func' defined here
# ArgumentError (unknown keyword: :to_hash_key)
```
In Ruby 3, this will be passed as a positional argument. To get the Ruby 3=
behavior with the master branch:
```ruby
my_func(Test.new, **(;{}))
```
----------------------------------------
Bug #14909: Method call with object that has to_hash method crashes (method=
with splat and keyword arguments)
https://bugs.ruby-lang.org/issues/14909#change-81332
* Author: johannes_luedke (Johannes L=FCdke)
* Status: Closed
* Priority: Normal
* Assignee: =
* Target version: =
* ruby -v: ruby 2.4.1p111 (2017-03-22 revision 58053) [x86_64-darwin17]
* Backport: 2.3: UNKNOWN, 2.4: UNKNOWN, 2.5: UNKNOWN
----------------------------------------
In a method with a splat method argument followed by a keyword argument, it=
leads to an `ArgumentError` when calling the method with an object that re=
acts to `to_hash`
~~~ruby
def my_func(*objects, error_code: 400)
objects.inspect
end
class Test
def to_hash
# an example hash
{ to_hash_key: "to_hash" }
end
end
my_func(Test.new)
~~~
Observed result: an exception is raised: `in my_func: unknown keyword: to_h=
ash_key (ArgumentError)` =
Expected result: `[#<Test:0x007fc8c9825318>]` is returned by the `my_func` =
call
It should behave the same when calling with objects that have a `to_hash` m=
ethod and objects that don't, shouldn't it?
-- =
https://bugs.ruby-lang.org/
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