A beleza das interfaces em Go

Transcript

1. A beleza das interfaces em Go

2. Paulo Casaretto @pcasaretto

3. Interface

4. Interfaces em Go

5. None
6. None
7. None

8. io.Reader io.Writer

9. io.Copy io.Reader io.Writer

10. Reader Example: GIF Decoder

11. os.File deblockingReader lzw.Reader

12. os.File | deblockingReader | lzw.Reader

13. os.File deblockingReader lzw.Reader io.Reader

14. Usando interfaces

15. None
16. None
17. None
18. None

19. Two relevant Go proverbs

20. THE BIGGER THE INTERFACE, THE WEAKER THE ABSTRACTION

21. interface{} says nothing

22. ProTip

23. • https://blog.golang.org/error-handling-and-go • https://blog.golang.org/errors-are-values • https://blog.golang.org/gif-decoder-exercise- in-go-interfaces • https://go-proverbs.github.io/ Resources

24. Thanks!

25. panic(“Thanks!”)

26. None
27. None
28. None