Fixed js.array.append (needs a WrappedArray, actually) (issue #1)

Author: ochafik

src/main/scala/streams/ScalaJsSymbols.scala

@@ -8,6 +8,9 @@ private[streams] trait ScalaJsSymbols
   private[streams] lazy val JsArraySymOpt =
     scalaJsStaticClass("scala.scalajs.js.Array")
 
+  private[streams] lazy val JsWrappedArraySymOpt =
+    scalaJsStaticClass("scala.scalajs.js.WrappedArray")
+
   private[streams] lazy val JsArrayOpsSymOpt =
     scalaJsStaticClass("scala.scalajs.js.ArrayOps")
 

src/main/scala/streams/sinks/JsArrayBuilderSinks.scala

@@ -35,9 +35,11 @@ private[streams] trait JsArrayBuilderSinks
       val Block(List(
           arrayDecl,
           append), arrayRef) = typed(q"""
-        private[this] var $array = new ${JsArraySymOpt.get}[$componentTpe]();
+        private[this] var $array = new ${JsWrappedArraySymOpt.get}[$componentTpe](
+          new ${JsArraySymOpt.get}[$componentTpe]()
+        );
         $array.append(${input.vars.alias.get});
-        $array
+        $array.array
       """)
 
       StreamOutput(