Let's Try F# vNext

Transcript

1. Let's Try F# vNext !!
2. INTRODUCE • PERSONALITY • midoliy ( みどり ) • 1989/9/13 生まれの 32歳 独身 男性 • 大阪市在住 : 東京都内にある某企業で労働中 • ACTIVITY • Fxcel : https://github.com/tatsuya-midorikawa/Fxcel • Midoliy.Office.Interop.Excel : https://github.com/Midoliy/Midoliy.Office.Interop.Excel
3. AGENDA • [FS-1056] Allow overloads of custom keywords in Computaion Expressions. • [FS-1076] From the end slicing and indexing for collections. • [FS-1097] Task builder. • [FS-1098] inline-if-lambda attributes on parameters. • [FS-1099] library support for faster computed list and array expressions. • [FS-1105] Non-variable patterns to the right of as patterns.
4. PREPARE • .fsproj の LangVersion に preview を指定する
5. [FS-1056] Allow overloads of custom keywords in Computaion Expressions.
6. [FS-1056] Allow overloads of custom keywords in Computaion Expressions. カスタムオペレーション名を オーバーロードできるようになった！
7. [FS-1076] From the end slicing and indexing for collections.
8. [FS-1076] From the end slicing and indexing for collections. Warningだからビルドできそうに見えるけど --langversion:preview を指定しないと失敗する
9. [FS-1097] Task builder.
10. [FS-1097] Task builder. preview入りしているのにまだ使えないので TaskBuilder.fs で代替
11. [FS-1097] Task builder. ここで余計な変換コストが発生
12. Task.Run()っぽい動作になっている [FS-1097] Task builder.
13. [FS-1099] Library support for faster computed list and array expressions.
14. ここでムダな処理が入ってしまう [FS-1099] Library support for faster computed list and array expressions.
15. [FS-1098] inline-if-lambda attributes on parameters.
16. [FS-1098] inline-if-lambda attributes on parameters. preview入りしているのにまだ使えない part 2
17. [FS-1098] inline-if-lambda attributes on parameters. [MethodImpl(MethodImplOptions.AggressiveInlining)] に近い動作をする
18. [FS-1105] Non-variable patterns to the right of as patterns.
19. Thank you!!