From: sawadatsuyoshi@...
Date: 2019-02-15T11:10:02+00:00
Subject: [ruby-core:91564] [Ruby trunk Feature#15574] Prohibit to pass a block on super() implicitly

Issue #15574 has been updated by sawa (Tsuyoshi Sawada).


sos4nt (Stefan Sch����ler) wrote:
> Calling `super` (without parentheses) would pass two arguments (`foo` and `bar`) to the super method which only takes one argument, resulting in an `ArgumentError`.

In such case, you do need explicit control of which arguments to pass. And it is inconsistent that you want to take care of the arguments but not the block.


----------------------------------------
Feature #15574: Prohibit to pass a block on super() implicitly
https://bugs.ruby-lang.org/issues/15574#change-76827

* Author: ko1 (Koichi Sasada)
* Status: Open
* Priority: Normal
* Assignee: matz (Yukihiro Matsumoto)
* Target version: 
----------------------------------------
As described in [Feature #15554], `super()` (not `super`) pass the given block.

```
class C
  def foo
    p block_given?
  end
end

class C1 < C
  def foo
    super   #=> true
    super() #=> true
  end
end

C1.new.foo{}
```

`super` (without parameters) passes all passed parameters so it is no surprise to pass given block. 

However, `super()` (with parameters. In this case, it passes 0 parameters) also pass given block implicitly.

I'm not sure who use this behavior, but I think it is simple to prohibit such implicit block passing.




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