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Diffstat (limited to 'test/files/run/t6187.check')
-rw-r--r-- | test/files/run/t6187.check | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/test/files/run/t6187.check b/test/files/run/t6187.check new file mode 100644 index 0000000000..c0ca02923b --- /dev/null +++ b/test/files/run/t6187.check @@ -0,0 +1,32 @@ +Type in expressions to have them evaluated. +Type :help for more information. + +scala> import language.experimental.macros, reflect.macros.Context +import language.experimental.macros +import reflect.macros.Context + +scala> def macroImpl[T: c.WeakTypeTag](c: Context)(t: c.Expr[T]): c.Expr[List[T]] = { + val r = c.universe.reify { List(t.splice) } + c.Expr[List[T]]( c.resetLocalAttrs(r.tree) ) +} +macroImpl: [T](c: scala.reflect.macros.Context)(t: c.Expr[T])(implicit evidence$1: c.WeakTypeTag[T])c.Expr[List[T]] + +scala> def demo[T](t: T): List[T] = macro macroImpl[T] +demo: [T](t: T)List[T] + +scala> def m[T](t: T): List[List[T]] = + demo( List((t,true)) collect { case (x,true) => x } ) +m: [T](t: T)List[List[T]] + +scala> m(List(1)) +res0: List[List[List[Int]]] = List(List(List(1))) + +scala> // Showing we haven't added unreachable warnings + +scala> List(1) collect { case x => x } +res1: List[Int] = List(1) + +scala> List("") collect { case x => x } +res2: List[String] = List("") + +scala> |