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bascule's profile
Tony Arcieri
Tony Arcieri
Tony Arcieri
@bascule

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Tony Arcieri

@bascule

Co-founder @iqlusioninc, formerly @square @chain. Cryptography dilettante, polyglot programmer, key management wrangler, and infrastructure security specialist

San Francisco, CA
tonyarcieri.com
Joined May 2007

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    Tony Arcieri‏ @bascule 18 Jan 2013

    Do Ruby Structs actually present any significant advantages over declaring a class and using attr_accessor?

    3:58 PM - 18 Jan 2013
    10 replies 0 retweets 0 likes
      1. New conversation
      2. Hiroshi Nakamura‏ @nahi 18 Jan 2013
        Replying to @bascule

        @bascule Struct can be anonymous?

        1 reply 0 retweets 0 likes
      3. Tony Arcieri‏ @bascule 18 Jan 2013
        Replying to @nahi

        @nahi why is that useful?

        1 reply 0 retweets 0 likes
      4. Hiroshi Nakamura‏ @nahi 18 Jan 2013
        Replying to @bascule

        @bascule it cannot be accessed from outside of scope by name. I forgot a smiley, I'm not sure it's really an "useful" feature. :)

        1 reply 0 retweets 0 likes
      5. Tony Arcieri‏ @bascule 18 Jan 2013
        Replying to @nahi

        @nahi heh, k

        0 replies 0 retweets 0 likes
      6. End of conversation
      1. New conversation
      2. Joe Van Dyk‏ @joevandyk 18 Jan 2013
        Replying to @bascule

        @bascule Person = Struct.new(:name); Person.new('joe').name

        1 reply 0 retweets 0 likes
      3. Tony Arcieri‏ @bascule 18 Jan 2013
        Replying to @joevandyk

        @joevandyk why are you telling me this?

        1 reply 0 retweets 0 likes
      4. Joe Van Dyk‏ @joevandyk 18 Jan 2013
        Replying to @bascule

        @bascule you asked if it had any advantages. It defines #initialize for you, and you can pass in initial values

        1 reply 0 retweets 0 likes
      5. Tony Arcieri‏ @bascule 18 Jan 2013
        Replying to @joevandyk

        @joevandyk ok. @steveklabnik mentioned that too. seems reasonable I guess?

        0 replies 0 retweets 0 likes
      6. End of conversation
      1. New conversation
      2. James Tucker‏ @raggi 18 Jan 2013
        Replying to @bascule

        @bascule free initializer

        1 reply 0 retweets 0 likes
      3. Tony Arcieri‏ @bascule 18 Jan 2013
        Replying to @raggi

        @raggi confirm, only redeeming value

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. New conversation
      2. Struct syntax_pos::SpanData‏ @steveklabnik 18 Jan 2013
        Replying to @bascule

        @bascule no need to make a constructor

        1 reply 0 retweets 0 likes
      3. Tony Arcieri‏ @bascule 18 Jan 2013
        Replying to @steveklabnik

        @steveklabnik true

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. New conversation
      2. Oh so what?‏ @brixen 18 Jan 2013
        Replying to @bascule

        @bascule dude, a class is way too simple. Anyone can use a class. That's lame. Now, a Struct, or OpenStruct, on the other hand...

        1 reply 0 retweets 0 likes
      3. Tony Arcieri‏ @bascule 18 Jan 2013
        Replying to @brixen

        @brixen rotflmao. apparently a class is too much typing

        2 replies 0 retweets 0 likes
      4. Blake Barnett‏ @shadoi 18 Jan 2013
        Replying to @bascule

        @bascule @brixen class Foo < OpenStruct

        0 replies 0 retweets 0 likes
      5. End of conversation
      1. Moss Collum‏ @moss 19 Jan 2013
        Replying to @bascule

        @bascule They give good default implementations of eql? and hash, which is a win for value objects that'll be put in Sets or Hashes.

        0 replies 0 retweets 0 likes
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      1. not that simms‏ @slyphon 18 Jan 2013
        Replying to @bascule

        @bascule structs are lighter weight in terms of memory allocation. attribute access is just offset into an array

        0 replies 0 retweets 0 likes
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      1. New conversation
      2. Josh Susser‏ @joshsusser 18 Jan 2013
        Replying to @bascule

        @bascule convenience: accessors, initializer, create with splat list. But Struct is like Rails scaffolds IMO, have to ditch eventually

        1 reply 0 retweets 0 likes
      3. Justin Searls‏Verified account @searls 18 Jan 2013
        Replying to @joshsusser

        @joshsusser @bascule I agree. I start with a struct for convenience. Eventually it either becomes a class or dies altogether.

        0 replies 0 retweets 0 likes
      4. End of conversation
      1. postmodern‏ @postmodern_mod3 18 Jan 2013
        Replying to @bascule

        @bascule supposedly MRI needs less memory to allocate a Struct instance. (cc @dkubb)

        0 replies 0 retweets 0 likes
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