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author | Heather Miller <heather.miller@epfl.ch> | 2012-04-15 14:51:18 +0200 |
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committer | Heather Miller <heather.miller@epfl.ch> | 2012-04-15 14:51:18 +0200 |
commit | e4bea920b42eaa526a9e07ad001f17443d6abeba (patch) | |
tree | c786202cc9d0fa5b1a26dfd8e1154cacca7fbaf4 /test/files/run/macro-reify-nested-b/Impls_Macros_1.scala | |
parent | 23aa1a8d7b08b767f90657baf9bc13a355682671 (diff) | |
parent | 364dd41c3e0e33afe6c3ec6e0c04f1d345c4b6ca (diff) | |
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Merge branch 'master' of https://github.com/scala/scala into wip-sip14-fixes
Diffstat (limited to 'test/files/run/macro-reify-nested-b/Impls_Macros_1.scala')
-rw-r--r-- | test/files/run/macro-reify-nested-b/Impls_Macros_1.scala | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/test/files/run/macro-reify-nested-b/Impls_Macros_1.scala b/test/files/run/macro-reify-nested-b/Impls_Macros_1.scala new file mode 100644 index 0000000000..1ce8f44671 --- /dev/null +++ b/test/files/run/macro-reify-nested-b/Impls_Macros_1.scala @@ -0,0 +1,43 @@ +import scala.reflect.makro.Context + +case class Utils[C <: Context]( c:C ) { + import c.mirror._ + import c.{Tree=>_} + object removeDoubleReify extends c.mirror.Transformer { + def apply( tree:Tree ) = transform(tree) + override def transform(tree: Tree): Tree = { + super.transform { + tree match { + case Apply(TypeApply(Select(_this, termname), _), reified::Nil ) + if termname.toString == "factory" => c.unreifyTree(reified) + case Apply(Select(_this, termname), reified::Nil ) + if termname.toString == "factory" => c.unreifyTree(reified) + case _ => tree + } + } + } + } +} +object QueryableMacros{ + def _helper[C <: Context,S:c.TypeTag]( c:C )( name:String, projection:c.mirror.Expr[_] ) = { + import c.mirror._ + val element_type = implicitly[c.TypeTag[S]].tpe + val foo = Expr[reflect.mirror.Expr[Queryable[S]]]( + c.reifyTree( c.reflectMirrorPrefix, c.typeCheck( + Utils[c.type](c).removeDoubleReify( + Apply(Select(c.prefix.tree, newTermName( name )), List( projection.tree )) + ).asInstanceOf[Tree] + ))) + c.reify{ Queryable.factory[S]( foo.eval )} + } + def map[T:c.TypeTag, S:c.TypeTag] + (c: scala.reflect.makro.Context) + (projection: c.mirror.Expr[T => S]): c.mirror.Expr[Queryable[S]] = _helper[c.type,S]( c )( "_map", projection ) +} +class Queryable[T]{ + def _map[S]( projection: T => S ) : Queryable[S] = ??? + def map[S]( projection: T => S ) : Queryable[S] = macro QueryableMacros.map[T,S] +} +object Queryable{ + def factory[S]( projection:scala.reflect.mirror.Expr[Queryable[S]] ) : Queryable[S] = null +}
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