Issue #9669 has been updated by Tsuyoshi Sawada.


That is consistent. In the first example, `'bar'` is interpreted as the default value of `b`. In the second example, the expression `puts 'bar'` is inappropriate as the default value, hence the error.

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Bug #9669: Inconsistent SyntaxError in Ruby 2.1 mandatory keyword arguments definition without parentheses.
https://bugs.ruby-lang.org/issues/9669#change-45917

* Author: Teja Sophista
* Status: Open
* Priority: Normal
* Assignee: 
* Category: 
* Target version: 
* ruby -v: 2.1.1
* Backport: 2.0.0: UNKNOWN, 2.1: UNKNOWN
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Ruby allowed us to define method with arguments without parentheses.

~~~
def foo a:, b:
  'bar'
end
#=> :foo

def foo a:, b:
  puts 'bar'
end
#=> syntax error
~~~



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