Add the 0.22.0-RC1 release article #8145
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anatoliykmetyuk
commented
Jan 30, 2020
| You can try out this version right now, from the comfort of your SBT, by visiting the [home page](https://dotty.epfl.ch/) and scrolling down to the "Create a Dotty Project" section. Enjoy the ride🚀! | ||
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| # New syntax for collective extension methods |
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/cc @odersky
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| For the discussion, see [PR #7775](https://github.com/lampepfl/dotty/pull/7775). Also see the GitHub [repository](https://github.com/typelevel/kind-projector) of the kind projector Scala 2 plugin for more context. | ||
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| # Further improvements to the contextual parameters syntax |
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/cc @odersky
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contextual -> context
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| For the time being, the change is experimental and the old syntax is also supported. For the discussion, see [PR #8017](https://github.com/lampepfl/dotty/pull/8017). You can browse the documentation concerning the new syntax [here](https://dotty.epfl.ch/docs/reference/contextual/motivation-new.html). | ||
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| # Semantics of inline parameters changed |
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/cc @nicolasstucki
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At the end of this section, we should also mention the changes from #8061
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| This change was introduced by [PR #8060](https://github.com/lampepfl/dotty/pull/8060/). For more information about the inline capability of Dotty, see [documentation](https://dotty.epfl.ch/docs/reference/metaprogramming/inline.html). | ||
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| # Primitive compiletime operations on singleton types |
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| | Required: (13 : Int) | ||
| ``` | ||
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| This feature is particularly useful for data science applications. In data science, it is very easy to make a linear algebra mistake, multiply matrices of wrong dimensions and get a runtime error – sometimes after a few hours of running the model. Hence compile-time verification of the models has a great potential for saving time. With such a type-level arithmetics, Scala becomes well-positioned to implement such type-safe data science frameworks. |
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/cc @biboudis
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biboudis
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We need to add the changes of #8021 |
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@nicolasstucki, see 1d710ca, WDYT? |
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Also, I've added the following to the header of the article:
This should enable users to run examples even more easily. However, we should publish the article once Scastie is updated, a good practice anyway. |
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At the beginning of all the prior blog articles, there's this text:
In this PR, I've taken the liberty to replace it with:
IMO the previous version of the header doesn't carry much meaning anymore, as the readers of the article are most probably familiar with what Dotty is. Instead, a good thing to do would be to specify some concrete steps for the users to try out Dotty.
TODO