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Module
# ruby2 _ keywords(method _ name , . . . ) -> nil (18129.0) -
For the given method names, marks the method as passing keywords through a normal argument splat. This should only be called on methods that accept an argument splat (`*args`) but not explicit keywords or a keyword splat. It marks the method such that if the method is called with keyword arguments, the final hash argument is marked with a special flag such that if it is the final element of a normal argument splat to another method call, and that method call does not include explicit keywords or a keyword splat, the final element is interpreted as keywords. In other words, keywords will be passed through the method to other methods.
...For the given method names, marks the method as passing keywords through
a normal argument splat. This should only be called on methods that
accept an argument splat (`*args`) but not explicit keywords or a
keyword splat. It marks the method such that if the method is called
with keyword argument......aware that if this method is removed, the behavior of the
method will change so that it does not pass through keywords.
//emlist[例][ruby]{
module Mod
def foo(meth, *args, &block)
send(:"do_#{meth}", *args, &block)
end
ruby2_keywords(:foo) if respond_to?(:ruby2_keywords, true)
end
//}... -
NEWS for Ruby 3
. 0 . 0 (30.0) -
NEWS for Ruby 3.0.0 このドキュメントは前回リリース以降のバグ修正を除くユーザーに影響のある機能の変更のリストです。
...tion. 8709
* ENV
* ENV.except has been added, which returns a hash excluding the given keys and their values. 15822
* Windows: Read ENV names and values as UTF-8 encoded Strings 12650
* Encoding
* Added new encoding IBM720. 16233
* Changed default for Encoding.default_external......and "public" methods now accept single array argument with a list of method names. 17314
* Module#attr_accessor, Module#attr_reader, Module#attr_writer and Module#attr methods now return an array of defined method names as symbols. 17314
* Module#alias_method now returns the defined alias a......f foo : (Integer) -> String?
end
//}
== Miscellaneous changes
* Methods using `ruby2_keywords` will no longer keep empty keyword splats, those are now removed just as they are for methods not using `ruby2_keywords`.
* When an exception is caught in the default handler, the error message and ba... -
NEWS for Ruby 2
. 7 . 0 (24.0) -
NEWS for Ruby 2.7.0 このドキュメントは前回リリース以降のバグ修正を除くユーザーに影響のある機能の変更のリストです。
...: 30,
"children": [{ "name": "Bob", "age": 2 }]
}
END
JSON.parse(json, symbolize_names: true) in {name: "Alice", children: [{name: name, age: age}]}
p name #=> "Bob"
p age #=> 2
JSON.parse(json, symbolize_names: true) in {name: "Alice", children: [{name: "Charlie", age: age}]}
#=> NoMatchingPa......されました。 10771
* 通常の引数分解でキーワード引数を渡すようにメソッドに印をつける
Module#ruby2_keywordsを追加しました。
古いRubyと互換性のある方法で全ての引数を転送する時に使えます。 16154
* 変更......* Proc
* 新規メソッド
* 通常の引数分解でキーワード引数を渡すようにprocに印をつける
Proc#ruby2_keywordsを追加しました。
古いRubyと互換性のある方法で全ての引数を転送する時に使えます。 16404
* Range...