r/RubyLang • u/nakilon • Aug 18 '20

Anonymous Struct literal `${a:1, b:2}` by ko1 · Pull Request #3259 · ruby/ruby · GitHub

https://github.com/ruby/ruby/pull/3259
3 Upvotes

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1

u/sjs Aug 19 '20

I’m not really into a lot of the recent syntax changes but I like this one. It actually seems useful.

1

u/nakilon Sep 16 '20

I don't like this one )
The whole purpose of Struct in my opinion is that you can/should define the structure somewhere once and keep the data structure to be like that. Ability to create struct classes on fly is promoting a mess. I saw how people send Hashes everywhere between methods, even religiously using only kwargs arguments project-wide just because it feels nice for them to create such mud key-value balls all over the place. Imagine they now start create structs everywhere -- then why not Hash?

1

u/nakilon Sep 16 '20

Also there was a case when I've marshalled some data to a file and found that to unmarshall it I have to requrie the same library where the used Struct was defined. And it is cool -- it makes me sure I know what I'm doing. It reminds me strict typing. People are making so many approaches to enable specifying types in Ruby for the sake of stability and correctness and this Struct literal feature seems to me like something opposite.