[#105450] [Ruby master Feature#18228] Add a `timeout` option to `IO.copy_stream` — "byroot (Jean Boussier)" <noreply@...>
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11 messages
2021/09/27
[ruby-core:105293] [Ruby master Feature#14579] Hash value omission
From:
"knu (Akinori MUSHA)" <noreply@...>
Date:
2021-09-16 09:22:46 UTC
List:
ruby-core #105293
Issue #14579 has been updated by knu (Akinori MUSHA).
...Which is that `{ symbol: }` verbosely means `{ symbol: binding.local_variable_defined?(:symbol) ? binding.local_variable_get(:symbol) : __send__(:symbol) }` with no exception, no matter if the symbol is `if`, `self`, `fork` or `return` or whatever.
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Feature #14579: Hash value omission
https://bugs.ruby-lang.org/issues/14579#change-93702
* Author: shugo (Shugo Maeda)
* Status: Closed
* Priority: Normal
* Assignee: matz (Yukihiro Matsumoto)
----------------------------------------
How about to allow value omission in Hash literals:
```ruby
x = 1
y = 2
h = {x:, y:}
p h #=> {:x=>1, :y=>2}
```
And in keyword arguments:
```ruby
def login(username: ENV["USER"], password:)
p(username:, password:)
end
login(password: "xxx") #=> {:username=>"shugo", :password=>"xxx"}
```
---Files--------------------------------
hash_value_omission.diff (619 Bytes)
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