Remove CPS dependency from default async implementation

- move all CPS-related code to `continuations` sub package
- fix CPS-based async implementation
- enable testing of CPS-based async implementation

1 files changed, 21 insertions, 0 deletions

diff --git a/src/main/scala/scala/async/continuations/CPSBasedAsyncBase.scala b/src/main/scala/scala/async/continuations/CPSBasedAsyncBase.scala
new file mode 100644
index 0000000..4e8ec80
--- /dev/null
+++ b/src/main/scala/scala/async/continuations/CPSBasedAsyncBase.scala
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2012 Typesafe Inc. <http://www.typesafe.com>
+ */
+
+package scala.async
+package continuations
+
+import scala.language.experimental.macros
+
+import scala.reflect.macros.Context
+import scala.util.continuations._
+
+/* Specializes `AsyncBaseWithCPSFallback` to always fall back to CPS, yielding a purely CPS-based
+ * implementation of async/await.
+ */
+trait CPSBasedAsyncBase extends AsyncBaseWithCPSFallback {
+
+  override def asyncImpl[T: c.WeakTypeTag](c: Context)(body: c.Expr[T]): c.Expr[futureSystem.Fut[T]] =
+    super.cpsBasedAsyncImpl[T](c)(body)
+
+}