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firstdrafthell's profile
Patrik Svensson
Patrik Svensson
Patrik Svensson
@firstdrafthell

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Patrik Svensson

@firstdrafthell

Father. Husband. Programmer. Creator of Cake (http://cakebuild.net ). Microsoft MVP. Working on @theghostlyapp. I like OSS, DevOps & #rustlang. (He/Him)

Stockholm, Sweden
patriksvensson.se
Joined August 2007

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    Patrik Svensson‏ @firstdrafthell Jan 31
    • Report Tweet

    Does someone better than me at @rustlang (probably everyone) know how I can make this test utility code a little smarter? Really don't like the duplication and my gut feeling says that there must be some better way of doing this...pic.twitter.com/vkwoOfu0OP

    4:52 AM - 31 Jan 2020
    • 2 Retweets
    • 21 Likes
    • Yaah 🦀 ☕ Thom Chiovoloni { ☠ } Steven your fan フィリップ Rust Language Thang Chung Gonzalo Nandez.
    15 replies 2 retweets 21 likes
      1. Patrik Svensson‏ @firstdrafthell Jan 31
        • Report Tweet

        Crisis averted! Managed to write a simple macro after some help and inspiration from @dzamlo that does what I want it to. Thanks for all the suggestions and help!pic.twitter.com/vFe3aluM0a

        0 replies 1 retweet 7 likes
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      2. Loïc Damien‏ @Dzamlo Jan 31
        • Report Tweet
        Replying to @firstdrafthell @rustlang

        One option to move the redundant code to a generic trait implemented on the Enum: https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=cb15b5610e1ceee2f151eb05d427e79e … But this doesn't help much. Another option is to use a macro: https://play.rust-lang.org/?version=stable&mode=debug&edition=2018&gist=1c6c55c410fe86d6d4dcc73b0cda0908 … I'm not sure this a better way.

        1 reply 0 retweets 1 like
      3. Patrik Svensson‏ @firstdrafthell Jan 31
        • Report Tweet
        Replying to @Dzamlo @rustlang

        Thanks for your help! I haven't written any macros before so your example was of great help (and inspiration). After some thought I managed to get something working:pic.twitter.com/5DDsh0bsyQ

        0 replies 0 retweets 2 likes
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      2. Taalaran‏ @taalaran Jan 31
        • Report Tweet
        Replying to @firstdrafthell @rustlang

        Maybe a marker trait for these struct plus an generic function ?

        1 reply 0 retweets 2 likes
      3. Patrik Svensson‏ @firstdrafthell Jan 31
        • Report Tweet
        Replying to @taalaran @rustlang

        Problem is that "CollectorConfiguration" is an enum. Not sure how I can make this generic

        0 replies 0 retweets 0 likes
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      2. Peter Ekerot‏ @ekerot Jan 31
        • Report Tweet
        Replying to @firstdrafthell @rustlang

        I have never ever used rust but looking at it I wonder if you could not switch it completely backwards and iterate over the configurations instead of the enum?

        1 reply 0 retweets 1 like
      3. Patrik Svensson‏ @firstdrafthell Jan 31
        • Report Tweet
        Replying to @ekerot @rustlang

        That’s bot possible. I need to match on the enums to access the configs

        1 reply 0 retweets 0 likes
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      1. ໓ฯlคຖ ໓p¢‏ @DPC_22 Jan 31
        • Report Tweet
        Replying to @firstdrafthell @rustlang

        You could make it generic over the type of config? Though for a test it might be overkill

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      2. Thom Chiovoloni‏ @thomcsc Jan 31
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        Replying to @firstdrafthell @rustlang

        i don't think there's a way. i've wished there were a good solution for going from `pattern that binds a value` => `option containing that value` (for any enum/pattern). I can't think of what that would look like though, or I'd consider RFCing it...

        1 reply 0 retweets 1 like
      3. Thom Chiovoloni‏ @thomcsc Jan 31
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        Replying to @thomcsc @firstdrafthell @rustlang

        Ah, that said, if you write function like `CollectorConfiguration::as_azure(&self) -> Option<&AzureDevopsConfiguration>` then these could be shaped like `self.iter().find_map(|c| http://c.as _azure()).expect("unable to find ...")`. Might be better.

        0 replies 0 retweets 1 like
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