Groovy AST Demystified
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Greach 2013 - Groovy AST Demystified
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Groovy AST Demystified
- 1. Andres Almiray Canoo Engineering AG Groovy AST Demystified
- 2. About the Speaker ∗ Java developer since the beginning ∗ True believer in Open Source ∗ Groovy committer since 2007 ∗ Project lead of the Griffon framework ∗ Currently working for
- 3. Agenda ∗ AST, How did we get here? ∗ AST Transformations ∗ Building your own AST
- 4. AST, how did we get here?
- 12. G E E V N I I L U S
- 16. Standard Groovy Distro includes: ∗ @EqualsAndHashCode ∗ @AutoClone ∗ @ToString ∗ @AutoExternalize ∗ @TupleConstructor ∗ @Synchronized ∗ @Canonical ∗ @Field ∗ @InheritConstructors ∗ @Grab ∗ @IndexedProperty ∗ @GrabResolver ∗ @Lazy ∗ @PackageScope ∗ @CompileStatic ∗ @NotYetImplemented ∗ @TypeChecked
- 17. Standard Groovy Distro includes: ∗ @Bindable ∗ @Log ∗ @Vetoable ∗ @Slf4j ∗ @ListenerList ∗ @Log4j ∗ @ConditionalInterrupt ∗ @Commons ∗ @ThreadInterrupt ∗ @Singleton ∗ @TimedInterrupt ∗ @Immutable ∗ @WithReadLock ∗ @Delegate ∗ @WithWriteLock ∗ @Category ∗ @Newify ∗ @Mixin
- 18. Groovy Ecosystem brings: ∗ @ByteCode ∗ Griffon ∗ @Scalify ∗ @EventPublisher ∗ GContracts ∗ @Threading ∗ @Invariant ∗ @PropertyListener ∗ @Requires ∗ @MVCAware ∗ @Ensures ∗ @MessageSourceAware ∗ Grails ∗ @ResourceResolverAwa ∗ @Entity re ∗ @ResourcesAware ∗ @TestFor ∗ @ThreadingAware
- 19. Global AST transformations ∗ Groovy – Grab ∗ Grails – GORM API ∗ Griffon – Threading injection ∗ Spock – the whole shebang
- 20. Building your own AST
- 22. Local AST Transformation 1. Define an @interface ∗ Easy peasy … right? 1. Define AST implementation ∗ huh …… 1. Profit!
- 23. Global AST Transformation 1. Add AST implementation entry to ∗ META- INF/services/org.codehaus.groovy.transform.ASTTra nsformation 1. Define AST implementation ∗ ??? !!! ??? !!! 1. Profit!
- 34. Additional Tools ∗ AST browser ∗ AST Builder
- 41. Thank You! @aalmiray andres.almiray@canoo.com