Constructors stub

Author: DarkDimius

src/dotty/tools/dotc/Compiler.scala

@@ -21,6 +21,7 @@ class Compiler {
     List(
       List(new FrontEnd),
       List(new LazyValsCreateCompanionObjects,
+        /* new Constructors, */
            new TailRec),    //force separataion between lazyVals and LVCreateCO
       List(new PatternMatcher,
            new LazyValTranformContext().transformer,

src/dotty/tools/dotc/transform/Constructors.scala

@@ -0,0 +1,27 @@
+package dotty.tools.dotc.transform
+
+import TreeTransforms._
+import dotty.tools.dotc.ast.tpd._
+import dotty.tools.dotc.core.Contexts.Context
+import dotty.tools.dotc.core.StdNames._
+
+/** This transform moves initializers from body to constructor.
+ *  Right now it's a dummy.
+ *  Awaiting for real implemetation
+ */
+class Constructors extends TreeTransform {
+
+  override def name: String = "constructors"
+  override def transformDefDef(tree: DefDef)(implicit ctx: Context, info: TransformerInfo): Tree = {
+    if(tree.symbol.isClassConstructor) {
+      val claz = tree.symbol.enclosingClass.asClass
+      val zuper = claz.info.parents.head.typeSymbol
+      cpy.DefDef(tree, tree.mods, tree.name, tree.tparams, tree.vparamss, tree.tpt, rhs = {
+        val parentCall = Apply(Select(Super(This(claz), tpnme.EMPTY, true), zuper.primaryConstructor), Nil)
+        if(tree.rhs.isEmpty) parentCall
+        else Block(List(parentCall), tree.rhs)
+
+      })
+    } else tree
+  }
+}