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-rw-r--r--test/files/pos/macro-implicit-invalidate-on-error.scala28
1 files changed, 28 insertions, 0 deletions
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))
+ }
+ }
+ """ }
+ }
+}