Moved TypeTrees defs into nested object tpd.

Reason: We need normal trees to do efficient pattern matching. So if we want to both pattern match and create trees we need to import Trees._ and TypedTrees.tpd. Then typed tree construction needs to be prefixed with tpd, e.g. tpd.Select(pre, name).

1 files changed, 7 insertions, 4 deletions

diff --git a/src/dotty/tools/dotc/core/PluggableTransformers.scala b/src/dotty/tools/dotc/core/PluggableTransformers.scala
index b0b2ca134..3e3ee7df1 100644
--- a/src/dotty/tools/dotc/core/PluggableTransformers.scala
+++ b/src/dotty/tools/dotc/core/PluggableTransformers.scala
@@ -84,19 +84,22 @@ object PluggableTransformers {
   }
 }
 
-import PluggableTransformers._, Types._, TypedTrees._
+import PluggableTransformers._, Types._, Trees._, Contexts._, TypedTrees.tpd
 
 class ExampleTransformer extends PluggableTransformer[Type] {
 
-  class ExamplePlugin extends Plugin {
+  object ExamplePlugin extends Plugin {
     override def processIdent = {
       case tree @ Ident(x) if x.isTypeName => tree.derivedSelect(tree, x)
-      case tree => tree
+      case tree => tpd.Ident(???)
     }
     override def processSelect = { tree =>
       if (tree.isType) tree.derivedIdent(tree.name)
-      else EmptyTree
+      else tpd.EmptyTree
     }
   }
 
+  override def transform(tree: tpd.Tree, ctx: Context) =
+    super.transform(tree, ctx)
+
 }
\ No newline at end of file