[ruby-core:96493] [Ruby master Feature#16451] Special ternary operator for methods ending in `?`

Issue #16451 has been updated by nobu (Nobuyoshi Nakada).


A method ends with `?` also can take argument(s), so the proposed syntax introduces an ambiguity which doesn't seem solvable. 

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Feature #16451: Special ternary operator for methods ending in `?`
https://bugs.ruby-lang.org/issues/16451#change-83424

* Author: myxoh (Nicolas Klein)
* Status: Open
* Priority: Normal
* Assignee: 
* Target version: 
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When a method ends in `?`, we should be able to skip the `?` in the ternary operator. For example, we should be able to do:

```ruby
question_method? true_statement : false_statement
```

This shouldn't interfere with implementations, as it currently fails to parse. Below are examples:

```ruby
def normal_method; true end
def question_method?; false end

question_method? ? 'was true' : 'was false' # => 'was false'
question_method?   'was true' : 'was false' # => 'was false'
normal_method ?    'was true' : 'was false' # => 'was true'
```



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