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author | Adriaan Moors <adriaan.moors@typesafe.com> | 2013-11-22 17:57:05 -0800 |
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committer | Adriaan Moors <adriaan.moors@typesafe.com> | 2013-11-22 17:57:05 -0800 |
commit | 1296bb8bffc5f0c193ad3c77333567e8853a9ee6 (patch) | |
tree | ead39686bc995cf0c673b144afea5dd810f58f78 /test/files/pos | |
parent | 2f7396d97f99f4ed2817566f36416e16b10b7ffc (diff) | |
parent | ee6fbae3d069d8fe55b7a20756c04abcc9119bba (diff) | |
download | scala-1296bb8bffc5f0c193ad3c77333567e8853a9ee6.tar.gz scala-1296bb8bffc5f0c193ad3c77333567e8853a9ee6.tar.bz2 scala-1296bb8bffc5f0c193ad3c77333567e8853a9ee6.zip |
Merge pull request #3137 from xeno-by/topic/implicit-macros-invalidate-on-error
correctly fails implicit search for invalid implicit macros
Diffstat (limited to 'test/files/pos')
-rw-r--r-- | test/files/pos/macro-implicit-invalidate-on-error.check | 0 | ||||
-rw-r--r-- | test/files/pos/macro-implicit-invalidate-on-error.scala | 28 |
2 files changed, 28 insertions, 0 deletions
diff --git a/test/files/pos/macro-implicit-invalidate-on-error.check b/test/files/pos/macro-implicit-invalidate-on-error.check new file mode 100644 index 0000000000..e69de29bb2 --- /dev/null +++ b/test/files/pos/macro-implicit-invalidate-on-error.check diff --git a/test/files/pos/macro-implicit-invalidate-on-error.scala b/test/files/pos/macro-implicit-invalidate-on-error.scala new file mode 100644 index 0000000000..22cd2d34b4 --- /dev/null +++ b/test/files/pos/macro-implicit-invalidate-on-error.scala @@ -0,0 +1,28 @@ +package scala.reflect +package api + +import scala.language.experimental.macros +import scala.reflect.macros.Context + +trait Liftable[T] { + def apply(universe: api.Universe, value: T): universe.Tree +} + +object Liftable { + implicit def liftCaseClass[T <: Product]: Liftable[T] = macro liftCaseClassImpl[T] + + def liftCaseClassImpl[T: c.WeakTypeTag](c: Context): c.Expr[Liftable[T]] = { + import c.universe._ + val tpe = weakTypeOf[T] + if (!tpe.typeSymbol.asClass.isCaseClass) c.abort(c.enclosingPosition, "denied") + val p = List(q"Literal(Constant(1))") + c.Expr[Liftable[T]] { q""" + new scala.reflect.api.Liftable[$tpe] { + def apply(universe: scala.reflect.api.Universe, value: $tpe): universe.Tree = { + import universe._ + Apply(Select(Ident(TermName("C")), TermName("apply")), List(..$p)) + } + } + """ } + } +} |