Update from the Elixir team - 2022

Transcript

1. Elixir Update from the core team May 2022

2. Andrea Leopardi @whatyouhide Elixir core team, engineer for 

3. Recap Every 6 months (May, Nov) Non-breaking versions (1.x)

4. 1.13

5. 1.13 December 2021 Focused on developer experience

6. 1.13 Semantic recompilation mix xref improvements Code.Fragment Formatter plugins

7. 1.13 defmodule MixMarkdownFormatter do @behaviour Mix.Tasks.Format def features(_opts) do [sigils:

   [:M], extensions: [".md", ".markdown"]] end def format(contents, opts) do # ... end end

8. 1.13 # In .formatter.exs [ plugins: [MixMarkdownFormatter], inputs: [...] ]

9. None

10. 1.14

11. June 2022 Requires OTP 23+ 1.14

12. PartitionSupervisor 1.14

13. Application supervisor Bottleneck process 1.14

14. Application supervisor Bottleneck process 1.14 PartitionSupervisor Bottleneck process Bottleneck process

15. children = [ {PartitionSupervisor, child_spec: {ErrorReporter, []}, name: Reporters} ]

    1.14

16. def report_error(err) do ErrorReporter.report( {:via, PartitionSupervisor, {Reporters, self()}}, err )

    end 1.14

17. Slicing with steps 1.14

18. 1.14 1..10//2

19. 1.14 Enum.slice(~w(a b c d e f g h), 1..4//2)

    #=> ["b", "d"]

20. Expression-based inspection 1.14

21. 1.14 IO.inspect(Version.parse!("1.0.0")) #=> #Version<1.0.0> Before:

22. 1.14 IO.inspect(Version.parse!("1.0.0")) #=> Version.parse!("1.0.0") Now:

23. 1.14 Version Version.Requirement MapSet Date.Range

24. 1.14 __repr__ Python's

25. Improved errors in binary construction* 1.14 *thanks Erlang!

26. 1.14 In OTP 25 (part of EEP 54)

27. 1.14 int = 1 bin = "foo" int <> bin

    ** (ArgumentError) argument error

28. 1.14 int = 1 bin = "foo" int <> bin

    ** (ArgumentError) construction of binary failed: segment 1 of type 'binary': expected a binary but got: 1

29. elixir-lang.org @whatyouhide