From: mail@...
Date: 2019-02-15T11:02:35+00:00
Subject: [ruby-core:91563] [Ruby trunk Feature#15574] Prohibit to pass a block on super() implicitly

Issue #15574 has been updated by sos4nt (Stefan Sch����ler).


sawa (Tsuyoshi Sawada) wrote:
> In such case, i.e., when you don't want to take the responsibility of managing the arguments and blocks, I think you should use `super`, not `super(foo, &block)`

Calling `super` (without parentheses) would pass two arguments (`foo` and `bar`) to the super method which only takes one argument, resulting in an `ArgumentError`.

----------------------------------------
Feature #15574: Prohibit to pass a block on super() implicitly
https://bugs.ruby-lang.org/issues/15574#change-76826

* 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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