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June 3, 2011 18:01
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| Last login: Fri Jun 3 10:39:54 on ttys004 | |
| ~ % cd scala | |
| META-INF/ build.examples.xml dists/ project/ | |
| README build.number docs/ src/ | |
| build/ build.xml gitignore.SAMPLE test/ | |
| build.detach.xml classpath.SAMPLE lib/ tools/ | |
| ~/scala % dists/latest/bin/scala (master↑16⚡) | |
| Welcome to Scala version 2.10.0.r25048-b20110531064458 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_24). | |
| Type in expressions to have them evaluated. | |
| Type :help for more information. | |
| scala> :wrap | |
| wrap: no such command. Type :help for help. | |
| scala> :help | |
| All commands can be abbreviated, e.g. :he instead of :help. | |
| Those marked with a * have more detailed help, e.g. :help imports. | |
| :cp <path> add a jar or directory to the classpath | |
| :help [command] print this summary or command-specific help | |
| :history [num] show the history (optional num is commands to show) | |
| :h? <string> search the history | |
| :imports [name name ...] show import history, identifying sources of names | |
| :implicits [-v] show the implicits in scope | |
| :javap <path|class> disassemble a file or class name | |
| :keybindings show how ctrl-[A-Z] and other keys are bound | |
| :load <path> load and interpret a Scala file | |
| :paste enter paste mode: all input up to ctrl-D compiled together | |
| :power enable power user mode | |
| :quit exit the interpreter | |
| :replay reset execution and replay all previous commands | |
| :sh <command line> run a shell command (result is implicitly => List[String]) | |
| :silent disable/enable automatic printing of results | |
| :type <expr> display the type of an expression without evaluating it | |
| scala> :power | |
| ** Power User mode enabled - BEEP BOOP WHIR ** | |
| ** scala.tools.nsc._ has been imported ** | |
| ** global._ and definitions._ also imported ** | |
| ** New vals! Try repl, intp, global, power ** | |
| ** New cmds! :help to discover them ** | |
| ** New defs! Type power.<tab> to reveal ** | |
| scala> | |
| scala> :phase typer.next | |
| Active phase is now: Superaccessors (typer.next) | |
| scala> Nil.bts | |
| res0: List[power.global.Type] = List(scala.collection.immutable.Nil$, List[A], scala.collection.immutable.LinearSeq[A], scala.collection.immutable.Seq[A], scala.collection.LinearSeq[A], Seq[A], scala.collection.immutable.Iterable[A], Iterable[A], scala.collection.LinearSeqOptimized[A,List[A]], scala.collection.LinearSeqLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.LinearSeqLike[A,scala.collection.LinearSeq[A]] with scala.collection.LinearSeqLike[A,List[A]], scala.collection.SeqLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.SeqLike[A,scala.collection.LinearSeq[A]] with scala.collection.SeqLike[A,Seq[A]] with scala.collection.SeqLike[A,scala.collection.immutable.Seq[A]] with scala.collection.SeqLike[A,List[A]], scala.collection.immutable.Trav... | |
| scala> Nil.bts.foreach(println) | |
| scala.collection.immutable.Nil$ | |
| List[A] | |
| scala.collection.immutable.LinearSeq[A] | |
| scala.collection.immutable.Seq[A] | |
| scala.collection.LinearSeq[A] | |
| Seq[A] | |
| scala.collection.immutable.Iterable[A] | |
| Iterable[A] | |
| scala.collection.LinearSeqOptimized[A,List[A]] | |
| scala.collection.LinearSeqLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.LinearSeqLike[A,scala.collection.LinearSeq[A]] with scala.collection.LinearSeqLike[A,List[A]] | |
| scala.collection.SeqLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.SeqLike[A,scala.collection.LinearSeq[A]] with scala.collection.SeqLike[A,Seq[A]] with scala.collection.SeqLike[A,scala.collection.immutable.Seq[A]] with scala.collection.SeqLike[A,List[A]] | |
| scala.collection.immutable.Traversable[A] | |
| scala.collection.GenSeq[A] | |
| Traversable[A] | |
| scala.collection.IterableLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.IterableLike[A,scala.collection.LinearSeq[A]] with scala.collection.IterableLike[A,scala.collection.immutable.Iterable[A]] with scala.collection.IterableLike[A,Iterable[A]] with scala.collection.IterableLike[A,Seq[A]] with scala.collection.IterableLike[A,scala.collection.immutable.Seq[A]] with scala.collection.IterableLike[A,List[A]] | |
| scala.collection.GenIterable[A] | |
| scala.collection.TraversableLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.TraversableLike[A,scala.collection.LinearSeq[A]] with scala.collection.TraversableLike[A,scala.collection.immutable.Iterable[A]] with scala.collection.TraversableLike[A,Iterable[A]] with scala.collection.TraversableLike[A,Traversable[A]] with scala.collection.TraversableLike[A,scala.collection.immutable.Traversable[A]] with scala.collection.TraversableLike[A,Seq[A]] with scala.collection.TraversableLike[A,scala.collection.immutable.Seq[A]] with scala.collection.TraversableLike[A,List[A]] | |
| scala.collection.GenTraversable[A] | |
| scala.collection.GenSeqLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.GenSeqLike[A,scala.collection.LinearSeq[A]] with scala.collection.GenSeqLike[A,Seq[A]] with scala.collection.GenSeqLike[A,scala.collection.GenSeq[A]] with scala.collection.GenSeqLike[A,scala.collection.immutable.Seq[A]] with scala.collection.GenSeqLike[A,List[A]] | |
| scala.collection.GenIterableLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.GenIterableLike[A,scala.collection.LinearSeq[A]] with scala.collection.GenIterableLike[A,scala.collection.immutable.Iterable[A]] with scala.collection.GenIterableLike[A,scala.collection.GenIterable[A]] with scala.collection.GenIterableLike[A,Iterable[A]] with scala.collection.GenIterableLike[A,Seq[A]] with scala.collection.GenIterableLike[A,scala.collection.GenSeq[A]] with scala.collection.GenIterableLike[A,scala.collection.immutable.Seq[A]] with scala.collection.GenIterableLike[A,List[A]] | |
| scala.collection.GenTraversableLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.GenTraversableLike[A,scala.collection.LinearSeq[A]] with scala.collection.GenTraversableLike[A,scala.collection.immutable.Iterable[A]] with scala.collection.GenTraversableLike[A,scala.collection.GenIterable[A]] with scala.collection.GenTraversableLike[A,Iterable[A]] with scala.collection.GenTraversableLike[A,scala.collection.GenTraversable[A]] with scala.collection.GenTraversableLike[A,Traversable[A]] with scala.collection.GenTraversableLike[A,scala.collection.immutable.Traversable[A]] with scala.collection.GenTraversableLike[A,Seq[A]] with scala.collection.GenTraversableLike[A,scala.collection.GenSeq[A]] with scala.collection.GenTraversableLike[A,scala.collection.immutable.Seq[A]] with scala.collection.GenTraversableLike[A,List[A]] | |
| PartialFunction[Int,A] | |
| Product | |
| scala.collection.TraversableOnce[A] | |
| scala.collection.generic.GenericTraversableTemplate[A,scala.collection.immutable.LinearSeq] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.LinearSeq] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.immutable.Iterable] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.GenIterable] with scala.collection.generic.GenericTraversableTemplate[A,Iterable] with scala.collection.generic.GenericTraversableTemplate[A,Traversable] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.GenTraversable] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.immutable.Traversable] with scala.collection.generic.GenericTraversableTemplate[A,Seq] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.GenSeq] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.immutable.Seq] with scala.collection.generic.GenericTraversableTemplate[A,List] | |
| Serializable | |
| (Int) => A | |
| scala.collection.GenTraversableOnce[A] | |
| scala.collection.Parallelizable[A,scala.collection.parallel.immutable.ParIterable[A]] with scala.collection.Parallelizable[A,scala.collection.parallel.ParIterable[A]] with scala.collection.Parallelizable[A,scala.collection.parallel.ParSeq[A]] with scala.collection.Parallelizable[A,scala.collection.parallel.immutable.ParSeq[A]] | |
| ScalaObject | |
| Immutable | |
| Equals | |
| java.io.Serializable | |
| scala.collection.generic.FilterMonadic[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.generic.FilterMonadic[A,scala.collection.LinearSeq[A]] with scala.collection.generic.FilterMonadic[A,scala.collection.immutable.Iterable[A]] with scala.collection.generic.FilterMonadic[A,Iterable[A]] with scala.collection.generic.FilterMonadic[A,Traversable[A]] with scala.collection.generic.FilterMonadic[A,scala.collection.immutable.Traversable[A]] with scala.collection.generic.FilterMonadic[A,Seq[A]] with scala.collection.generic.FilterMonadic[A,scala.collection.immutable.Seq[A]] with scala.collection.generic.FilterMonadic[A,List[A]] | |
| scala.collection.generic.HasNewBuilder[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.LinearSeq[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.immutable.Iterable[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.GenIterable[A]] with scala.collection.generic.HasNewBuilder[A,Iterable[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.GenTraversable[A]] with scala.collection.generic.HasNewBuilder[A,Traversable[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.immutable.Traversable[A]] with scala.collection.generic.HasNewBuilder[A,Seq[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.GenSeq[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.immutable.Seq[A]] with scala.collection.generic.HasNewBuilder[A,List[A]] | |
| java.lang.Object | |
| Any | |
| scala> :phase typer | |
| Active phase is now: Typer | |
| scala> Nil.bts.foreach(println) | |
| scala.collection.immutable.Nil$ | |
| List[A] | |
| scala.collection.immutable.LinearSeq[A] | |
| scala.collection.immutable.Seq[A] | |
| scala.collection.LinearSeq[A] | |
| Seq[A] | |
| scala.collection.immutable.Iterable[A] | |
| Iterable[A] | |
| scala.collection.LinearSeqOptimized[A,List[A]] | |
| scala.collection.LinearSeqLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.LinearSeqLike[A,scala.collection.LinearSeq[A]] with scala.collection.LinearSeqLike[A,List[A]] | |
| scala.collection.SeqLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.SeqLike[A,scala.collection.LinearSeq[A]] with scala.collection.SeqLike[A,Seq[A]] with scala.collection.SeqLike[A,scala.collection.immutable.Seq[A]] with scala.collection.SeqLike[A,List[A]] | |
| scala.collection.immutable.Traversable[A] | |
| scala.collection.GenSeq[A] | |
| Traversable[A] | |
| scala.collection.IterableLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.IterableLike[A,scala.collection.LinearSeq[A]] with scala.collection.IterableLike[A,scala.collection.immutable.Iterable[A]] with scala.collection.IterableLike[A,Iterable[A]] with scala.collection.IterableLike[A,Seq[A]] with scala.collection.IterableLike[A,scala.collection.immutable.Seq[A]] with scala.collection.IterableLike[A,List[A]] | |
| scala.collection.GenIterable[A] | |
| scala.collection.TraversableLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.TraversableLike[A,scala.collection.LinearSeq[A]] with scala.collection.TraversableLike[A,scala.collection.immutable.Iterable[A]] with scala.collection.TraversableLike[A,Iterable[A]] with scala.collection.TraversableLike[A,Traversable[A]] with scala.collection.TraversableLike[A,scala.collection.immutable.Traversable[A]] with scala.collection.TraversableLike[A,Seq[A]] with scala.collection.TraversableLike[A,scala.collection.immutable.Seq[A]] with scala.collection.TraversableLike[A,List[A]] | |
| scala.collection.GenTraversable[A] | |
| scala.collection.GenSeqLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.GenSeqLike[A,scala.collection.LinearSeq[A]] with scala.collection.GenSeqLike[A,Seq[A]] with scala.collection.GenSeqLike[A,scala.collection.GenSeq[A]] with scala.collection.GenSeqLike[A,scala.collection.immutable.Seq[A]] with scala.collection.GenSeqLike[A,List[A]] | |
| scala.collection.GenIterableLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.GenIterableLike[A,scala.collection.LinearSeq[A]] with scala.collection.GenIterableLike[A,scala.collection.immutable.Iterable[A]] with scala.collection.GenIterableLike[A,scala.collection.GenIterable[A]] with scala.collection.GenIterableLike[A,Iterable[A]] with scala.collection.GenIterableLike[A,Seq[A]] with scala.collection.GenIterableLike[A,scala.collection.GenSeq[A]] with scala.collection.GenIterableLike[A,scala.collection.immutable.Seq[A]] with scala.collection.GenIterableLike[A,List[A]] | |
| scala.collection.GenTraversableLike[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.GenTraversableLike[A,scala.collection.LinearSeq[A]] with scala.collection.GenTraversableLike[A,scala.collection.immutable.Iterable[A]] with scala.collection.GenTraversableLike[A,scala.collection.GenIterable[A]] with scala.collection.GenTraversableLike[A,Iterable[A]] with scala.collection.GenTraversableLike[A,scala.collection.GenTraversable[A]] with scala.collection.GenTraversableLike[A,Traversable[A]] with scala.collection.GenTraversableLike[A,scala.collection.immutable.Traversable[A]] with scala.collection.GenTraversableLike[A,Seq[A]] with scala.collection.GenTraversableLike[A,scala.collection.GenSeq[A]] with scala.collection.GenTraversableLike[A,scala.collection.immutable.Seq[A]] with scala.collection.GenTraversableLike[A,List[A]] | |
| PartialFunction[Int,A] | |
| Product | |
| scala.collection.TraversableOnce[A] | |
| scala.collection.generic.GenericTraversableTemplate[A,scala.collection.immutable.LinearSeq] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.LinearSeq] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.immutable.Iterable] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.GenIterable] with scala.collection.generic.GenericTraversableTemplate[A,Iterable] with scala.collection.generic.GenericTraversableTemplate[A,Traversable] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.GenTraversable] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.immutable.Traversable] with scala.collection.generic.GenericTraversableTemplate[A,Seq] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.GenSeq] with scala.collection.generic.GenericTraversableTemplate[A,scala.collection.immutable.Seq] with scala.collection.generic.GenericTraversableTemplate[A,List] | |
| Serializable | |
| (Int) => A | |
| scala.collection.GenTraversableOnce[A] | |
| scala.collection.Parallelizable[A,scala.collection.parallel.immutable.ParIterable[A]] with scala.collection.Parallelizable[A,scala.collection.parallel.ParIterable[A]] with scala.collection.Parallelizable[A,scala.collection.parallel.ParSeq[A]] with scala.collection.Parallelizable[A,scala.collection.parallel.immutable.ParSeq[A]] | |
| ScalaObject | |
| Immutable | |
| Equals | |
| java.io.Serializable | |
| scala.collection.generic.FilterMonadic[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.generic.FilterMonadic[A,scala.collection.LinearSeq[A]] with scala.collection.generic.FilterMonadic[A,scala.collection.immutable.Iterable[A]] with scala.collection.generic.FilterMonadic[A,Iterable[A]] with scala.collection.generic.FilterMonadic[A,Traversable[A]] with scala.collection.generic.FilterMonadic[A,scala.collection.immutable.Traversable[A]] with scala.collection.generic.FilterMonadic[A,Seq[A]] with scala.collection.generic.FilterMonadic[A,scala.collection.immutable.Seq[A]] with scala.collection.generic.FilterMonadic[A,List[A]] | |
| scala.collection.generic.HasNewBuilder[A,scala.collection.immutable.LinearSeq[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.LinearSeq[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.immutable.Iterable[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.GenIterable[A]] with scala.collection.generic.HasNewBuilder[A,Iterable[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.GenTraversable[A]] with scala.collection.generic.HasNewBuilder[A,Traversable[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.immutable.Traversable[A]] with scala.collection.generic.HasNewBuilder[A,Seq[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.GenSeq[A]] with scala.collection.generic.HasNewBuilder[A,scala.collection.immutable.Seq[A]] with scala.collection.generic.HasNewBuilder[A,List[A]] | |
| java.lang.Object | |
| Any | |
| scala> List(1).members.map(_.defString).filter(_.matches("def m.*")) | |
| res3: List[String] = List(def mapConserve[B >: A <: AnyRef](f: (A) => B): List[B], def map[B,That](f: (A) => B)(implicit bf: scala.collection.generic.CanBuildFrom[Repr,B,That]): That, def mkString: String, def mkString(sep: String): String, def mkString(start: String,sep: String,end: String): String, def minBy[B](f: (A) => B)(implicit cmp: Ordering[B]): A, def maxBy[B](f: (A) => B)(implicit cmp: Ordering[B]): A, def max[B >: A](implicit cmp: Ordering[B]): A, def min[B >: A](implicit cmp: Ordering[B]): A) | |
| scala> List(1).members.map(_.defString).filter(_.matches("def m.*")).foreach(println) | |
| def mapConserve[B >: A <: AnyRef](f: (A) => B): List[B] | |
| def map[B,That](f: (A) => B)(implicit bf: scala.collection.generic.CanBuildFrom[Repr,B,That]): That | |
| def mkString: String | |
| def mkString(sep: String): String | |
| def mkString(start: String,sep: String,end: String): String | |
| def minBy[B](f: (A) => B)(implicit cmp: Ordering[B]): A | |
| def maxBy[B](f: (A) => B)(implicit cmp: Ordering[B]): A | |
| def max[B >: A](implicit cmp: Ordering[B]): A | |
| def min[B >: A](implicit cmp: Ordering[B]): A | |
| scala> def clazz[T: Manifest] = definitions.getClass(manifest[T].erasure.getName) | |
| clazz: [T](implicit evidence$1: Manifest[T])global.Symbol | |
| scala> clazz[java.util.ArrayList] | |
| <console>:23: error: class ArrayList takes type parameters | |
| clazz[java.util.ArrayList] | |
| ^ | |
| <console>:23: error: No Manifest available for <error>. | |
| clazz[java.util.ArrayList] | |
| ^ | |
| java.lang.AssertionError: assertion failed: Internal error - eval object method $result is overloaded: [Ljava.lang.reflect.Method;@42f9ff91 | |
| at scala.Predef$.assert(Predef.scala:103) | |
| at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.evalMethod(IMain.scala:648) | |
| at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:617) | |
| at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.callOpt(IMain.scala:620) | |
| at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.evalValue(IMain.scala:627) | |
| at scala.tools.nsc.interpreter.IMain$Request.getEval(IMain.scala:757) | |
| at scala.tools.nsc.interpreter.IMain$$anonfun$valueOfTerm$1.apply(IMain.scala:895) | |
| at scala.tools.nsc.interpreter.IMain$$anonfun$valueOfTerm$1.apply(IMain.scala:895) | |
| at scala.Option.flatMap(Option.scala:147) | |
| at scala.tools.nsc.interpreter.IMain.valueOfTerm(IMain.scala:895) | |
| at scala.tools.nsc.interpreter.IMain.classOfTerm(IMain.scala:898) | |
| at scala.tools.nsc.interpreter.IMain.runtimeClassAndTypeOfTerm(IMain.scala:909) | |
| at scala.tools.nsc.interpreter.JLineCompletion$ids$$anonfun$follow$3.apply(JLineCompletion.scala:165) | |
| at scala.tools.nsc.interpreter.JLineCompletion$ids$$anonfun$follow$3.apply(JLineCompletion.scala:160) | |
| at scala.Option.map(Option.scala:134) | |
| at scala.tools.nsc.interpreter.JLineCompletion$ids$.follow(JLineCompletion.scala:160) | |
| at scala.tools.nsc.interpreter.CompletionAware$class.executionFor(CompletionAware.scala:88) | |
| at scala.tools.nsc.interpreter.JLineCompletion$ids$.executionFor(JLineCompletion.scala:155) | |
| at scala.tools.nsc.interpreter.JLineCompletion.execute(JLineCompletion.scala:288) | |
| at scala.tools.nsc.interpreter.ILoop.runCompletion$1(ILoop.scala:740) | |
| at scala.tools.nsc.interpreter.ILoop.interpretStartingWith(ILoop.scala:752) | |
| at scala.tools.nsc.interpreter.ILoop.command(ILoop.scala:652) | |
| at scala.tools.nsc.interpreter.ILoop.processLine$1(ILoop.scala:545) | |
| at scala.tools.nsc.interpreter.ILoop.loop(ILoop.scala:553) | |
| at scala.tools.nsc.interpreter.ILoop.process(ILoop.scala:820) | |
| at scala.tools.nsc.MainGenericRunner.runTarget$1(MainGenericRunner.scala:67) | |
| at scala.tools.nsc.MainGenericRunner.process(MainGenericRunner.scala:80) | |
| at scala.tools.nsc.MainGenericRunner$.main(MainGenericRunner.scala:89) | |
| at scala.tools.nsc.MainGenericRunner.main(MainGenericRunner.scala) | |
| The repl compiler has crashed spectacularly. Shall I replay your | |
| session? I can re-run all lines except the last one. | |
| [y/n] | |
| Abandoning crashed session. | |
| scala> | |
| scala> :q | |
| ~/scala % dists/latest/bin/scala (master↑16⚡) | |
| Welcome to Scala version 2.10.0.r25048-b20110531064458 (Java HotSpot(TM) 64-Bit Server VM, Java 1.6.0_24). | |
| Type in expressions to have them evaluated. | |
| Type :help for more information. | |
| scala> def clazz[T: Manifest] = definitions.getClass(manifest[T].erasure.getName) | |
| <console>:7: error: not found: value definitions | |
| def clazz[T: Manifest] = definitions.getClass(manifest[T].erasure.getName) | |
| ^ | |
| scala> :power | |
| ** Power User mode enabled - BEEP BOOP WHIR ** | |
| ** scala.tools.nsc._ has been imported ** | |
| ** global._ and definitions._ also imported ** | |
| ** New vals! Try repl, intp, global, power ** | |
| ** New cmds! :help to discover them ** | |
| ** New defs! Type power.<tab> to reveal ** | |
| scala> | |
| scala> def clazz[T: Manifest] = definitions.getClass(manifest[T].erasure.getName) | |
| clazz: [T](implicit evidence$1: Manifest[T])global.Symbol | |
| scala> clazz[java.util.ArrayList[_]] | |
| res0: global.Symbol = class ArrayList | |
| scala> :phase typer.next | |
| Active phase is now: Superaccessors (typer.next) | |
| scala> val s1 = clazz[java.util.ArrayList[String]] | |
| s1: global.Symbol = class ArrayList | |
| scala> val s2 = clazz[java.util.HashSet[Int]] | |
| s2: global.Symbol = class HashSet | |
| scala> global.lub(List(s1.tpe, s2.tpe)) | |
| res1: global.Type = java.util.AbstractCollection[_ >: E with E] with java.lang.Cloneable with java.io.Serializable | |
| scala> val t1 = global.typeRef(NoPrefix, s1, List(definitions.StringClass.tpe) | |
| | ) | |
| t1: global.Type = ArrayList[java.lang.String] | |
| scala> val t2 = global.typeRef(NoPrefix, s1, List(definitions.IntClass.tpe)) | |
| t2: global.Type = ArrayList[Int] | |
| scala> val t2 = global.typeRef(NoPrefix, s2, List(definitions.IntClass.tpe)) | |
| t2: global.Type = HashSet[Int] | |
| scala> global.lub(List(t1, t2)) | |
| res2: global.Type = java.util.AbstractCollection[_ >: java.lang.String with Int] with java.lang.Cloneable with java.io.Serializable | |
| scala> List(new java.util.ArrayList[String], new java.util.HashSet[Int]) | |
| res3: List[java.util.AbstractCollection[_ >: Int with java.lang.String] with java.lang.Cloneable with java.io.Serializable] = List([], []) | |
| scala> scala.collection.immutable.Stream[_] |
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