[#99868] [Ruby master Bug#17144] Tempfile.open { ... } does not unlink the file — eregontp@...
Issue #17144 has been reported by Eregon (Benoit Daloze).
15 messages
2020/09/03
[ruby-core:100053] [Ruby master Bug#17179] Unexpected warning during value assignment to setter
From:
admin@...
Date:
2020-09-20 07:19:39 UTC
List:
ruby-core #100053
Issue #17179 has been updated by bestwebua (Vladislav Trotsenko).
jeremyevans0 (Jeremy Evans) wrote in #note-3:
> This is expected behavior in Ruby 2.7, due to keyword argument separation. The warning is valid because the code will cause an ArgumentError in Ruby 3.
>
> You should not use keywords parameters if you want to assign a hash. Instead, you should have the method accept a single hash argument. Note that calling the method directly with keywords will not cause a warning. `some_instance.send(:some_setter=, :a=>1, :b=>2)` doesn't warn, but `some_instance.send(:some_setter=, {:a=>1, :b=>2})` does.
Thank you, Jeremy!
----------------------------------------
Bug #17179: Unexpected warning during value assignment to setter
https://bugs.ruby-lang.org/issues/17179#change-87604
* Author: bestwebua (Vladislav Trotsenko)
* Status: Rejected
* Priority: Normal
* ruby -v: ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c) [x86_64-darwin19]
* Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN
----------------------------------------
```ruby
some_instance = Class.new { def some_setter=(a:, b:); end }.new
setter_params = { a: 1, b: 2 }
some_instance.some_setter = setter_params # => {:a=>1, :b=>2}
# warning: Using the last argument as keyword parameters is deprecated; maybe ** should be added to the call
# warning: The called method `some_setter=' is defined here
some_instance.public_send(:some_setter=, **setter_params) # => nil
# No warninigs, everything is ok
```
If this behavior is okay, probably we need to add the ability to use the double splat operator with syntax sugar like in example below:
```ruby
some_instance.some_setter = **setter_params
```
--
https://bugs.ruby-lang.org/
Unsubscribe: <mailto:[email protected]?subject=unsubscribe>
<http://lists.ruby-lang.org/cgi-bin/mailman/options/ruby-core>