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| package infrastructure | |
| import org.scalatest.prop.PropertyChecks | |
| import org.scalatest._ | |
| class Spec | |
| extends FreeSpec | |
| with MustMatchers | |
| with DiagrammedAssertions | |
| with PropertyChecks |
pawelpanasewicz
/ gist:f4185e5c1a18b4a5b147
Last active
August 29, 2015 14:07
stackable modifications
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| trait Animal{ | |
| println ("creating Animal") | |
| def speak: String | |
| } | |
| trait PrettyAnimal extends Animal{ | |
| println ("creating Pretty Animal") | |
| abstract override def speak = s"Pretty(${super.speak})" | |
| } |
pawelpanasewicz
/ gist:8625657
Last active
August 26, 2019 14:41
scala reflection - how to change (not only) private field
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| import scala.reflect.runtime.universe._ | |
| import scala.reflect.ClassTag | |
| def setField[O: ClassTag, FV](obj: O, fieldName: String, fieldValue: FV)(implicit ev: TypeTag[O]): O = { | |
| import scala.reflect.api.JavaUniverse | |
| val ru: JavaUniverse = scala.reflect.runtime.universe //runtime universe | |
| val runtimeMirror: ru.type#Mirror = ru.runtimeMirror(obj.getClass.getClassLoader) | |
| val instanceMirror: ru.type#InstanceMirror = runtimeMirror.reflect(obj) | |
| val fieldTerm: ru.type#TermName = ru.newTermName(fieldName) | |
| val fieldSymbol: ru.type#TermSymbol = ru.typeOf[O].declaration(fieldTerm).asTerm.accessed.asTerm |