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Pavel Fatin Alexander Podkhalyuzin ScalaDay Spb, 2011 Scala plugin for IntelliJ IDEA

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IntelliJ Scala Plugin Agenda  Why do we need it  What's inside  What's next

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Do we need an IDE for Scala?

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Can't we just use Notepad? Rationale

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Can't we just use Notepad? Rationale 

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Is it always the right tool? Rationale ?

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What makes us more productive?  Highlighting  Inspections  Code formatting  Auto-completion  Information look-up  Navigation  Refactoring  Integration Rationale

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What's already available?

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Syntax highlighting Features

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Syntax highlighting Features Implicit conversion

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Syntax highlighting Features By-name argument Implicit conversion

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Syntax highlighting Features By-name argument Implicit conversion Deprecated method

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Syntax highlighting Features Injected language By-name argument Implicit conversion Deprecated method

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Error highlighting  Ordinary:  Type-aware:  Quick-fixes: Features

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Inspections  Unused symbol  Variable could be value  Redundant return  Syntactic sugar  Method signature inspections Features

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Language injection  Pattern-based:  Via parameter annotation:  Via value annotation: Features

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Dark color schemes Features

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Language-aware editor  Brace balancing:  Entities selection:  Code folding: Features

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Formatting Features

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Code completion  Basic  Class name  Expected-type based  «Some»  Global member  Anonymous function Features

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Information look-up  Type info  Parameter info  Documentation look-up  Definition look-up Features

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Type Info Features

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Type Info Features

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Parameter info Features

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Documentation look-up Features

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Definition look-up Features

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Imports management  Import entity on completion  Auto-import unresolved symbol  Highlight unused imports  Optimize imports  Paste imports Features

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Refactoring  Rename  Introduce variable  Inline variable  Extract method  Introduce parameter Features

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Rename Features

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Introduce variable Features

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Inline variable Features

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Extract method Features

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Introduce parameter Features

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Java-to-Scala conversion Features

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Integrations  Java  JUnit / Specs / ScalaTest  Maven  Spring  Lift  SBT  FSC Features

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TODO

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Tasks  Fix move refactoring  Smart Step in debugger  Evaluate Expression in debugger  Scalate support  Scaladoc support Roadmap

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Thank you!