Scala plugin for IntelliJ IDEA

Scalathon 2011, http://scalathon.org/2011/

http://vimeo.com/28692913

Transcript

1. Pavel Fatin Alexander Podkhalyuzin Scalathon, 2011 Scala plugin for IntelliJ IDEA
2. Thank you!
3. IntelliJ Scala Plugin Agenda  Why do we need it  What's inside  How it's made  How to contribute
4. Do we need an IDE for Scala?
5. Can't we just use Notepad? Rationale 
6. Is it always the right tool? Rationale ?
7. What makes us more productive?  Highlighting  Inspections  Code formatting  Auto-completion  Information look-up  Refactoring  Integration Rationale
8. What's already available?
9. Syntax highlighting Injected language By-name argument Implicit conversion Deprecated method Features
10. Error highlighting  Ordinary:  Type-aware:  Quick-fixes: Features
11. Inspections  Unused symbol  Variable could be value  Redundant return  Syntactic sugar  Method signature inspections Features
12. Language injection  Pattern-based:  Via parameter annotation:  Via value annotation: Features
13. Dark color schemes Features
14. Language-aware editor  Brace balancing:  Entities selection:  Code folding: Features
15. Formatting Features
16. Code completion Features
17. Information look-up  Type info  Parameter info  Documentation look-up  Definition look-up Features
18. Type Info Features
19. Parameter info Features
20. Documentation look-up Features
21. Definition look-up Features
22. Imports management  Import entity on completion  Auto-import unresolved symbol  Highlight unused imports  Optimize imports  Paste imports Features
23. Refactoring  Rename  Introduce variable  Inline variable  Extract method  Introduce parameter Features
24. Rename Features
25. Introduce variable Features
26. Inline variable Features
27. Extract method Features
28. Introduce parameter Features
29. Integrations  Java  JUnit / Specs / ScalaTest  Maven  Spring  Lift  SBT Features
30. How it's made (It's not rocket science theoretical physics)
31. Building the project  Get the latest IDEA EAP build  Download IDEA sources  Enable DevKit plugin  Configure a Plugin SDK  Clone Scala plugin repository  Open the project in IDEA Architecture
32. Plugging the plugin  Plugin.xml  OpenAPI Architecture
33. Code processing Document Lexer Parser Wrapper PSI Architecture Text Tokens AST
34. Processing example Literal Literal ReferenceExpression ReferenceExpression WhiteSpace WhiteSpace Architecture STRING WS IDENTIFIER TRUE "that's" + WhiteSpace WhiteSpace Literal Literal true WS InfixExpression InfixExpression
35. PSI viewer Architecture
36. PSI foundation Architecture PsiElement textRange parent children prevSibling nextSibling add(element) addBefore(element, anchor) addAfter(element, anchor) delete() replace(newElement)
37. PSI elements hierarchy Scala Architecture PsiFile ScTypeDefinition ScalaFile PsiComment ScGenerator PsiClass PsiElement
38. Scala Language Specification Architecture
39. Scala domain elements Architecture ScClass name constructor superTypes members extendsblock add(member, anchor) remove(member) isInheritor(psiClass)
40. TODO
41. Tasks  Bug fixes  Inspections  Refactorings  Intentions  Frameworks support  Type system improvement  [Your most wanted feature here] TODO
42. Everyone is Welcome!