[ruby-core:111771] [Ruby master Feature#19261] `Data#members` is not important

Issue #19261 has been updated by zverok (Victor Shepelev).


>  But Data randomly lacking some shorthand methods that exist for Struct would make such refactoring harder.

Yes, that was the only reason I preserved the method in `Data`. Don't recall using it myself, but don't see harm in its existence either.

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Feature #19261: `Data#members` is not important
https://bugs.ruby-lang.org/issues/19261#change-101179

* Author: ko1 (Koichi Sasada)
* Status: Open
* Priority: Normal
----------------------------------------
`Data#members` is defined but it is calculated by `self.class.members` (in other words, `#members` is a shorthand for `self.class.members`).
So it is better to remove this method.

```ruby
P = Data.define(:x, :y)
p P.new(1, 2).members #=> [:x, :y]

Group = Data.define(:name, :members)
gs = Group.new('SasadaFamily', %w(ko1 yuki))
p gs.members #=> ["ko1", "yuki"]
```


---Files--------------------------------
data-members-remove-method.patch (1.87 KB)
data-and-struct-remove-members-method.patch (3.5 KB)


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