make BuildInterfaces an abstract class so it can have default values

and it becomes slightly easier to maintain source compatibility
between cbt versions

3 files changed, 4 insertions, 4 deletions

diff --git a/compatibility/BuildInterface.java b/compatibility/BuildInterface.java
index 636ded9..f061832 100644
--- a/compatibility/BuildInterface.java
+++ b/compatibility/BuildInterface.java
@@ -1,7 +1,7 @@
 package cbt;
 import java.io.*;
 
-public interface BuildInterface extends Dependency{
+public abstract class BuildInterface implements Dependency{
   public abstract BuildInterface copy(Context context);  // needed to configure builds
   public abstract String scalaVersion(); // needed to propagate scalaVersion to dependent builds
   public abstract String[] crossScalaVersionsArray(); // FIXME: this probably can't use Scala classes
diff --git a/stage1/resolver.scala b/stage1/resolver.scala
index c2ebb62..13e8e52 100644
--- a/stage1/resolver.scala
+++ b/stage1/resolver.scala
@@ -7,7 +7,7 @@ import scala.xml._
 import scala.concurrent._
 import scala.concurrent.duration._
 
-abstract class DependencyImplementation extends Dependency{
+trait DependencyImplementation extends Dependency{
   implicit protected def logger: Logger
   protected def lib = new Stage1Lib(logger)
 
@@ -196,7 +196,7 @@ object MavenDependency{
 // FIXME: take MavenResolver instead of mavenCache and repositories separately
 case class BoundMavenDependency(
   cbtHasChanged: Boolean, mavenCache: File, mavenDependency: MavenDependency, repositories: Seq[URL]
-)(implicit val logger: Logger) extends DependencyImplementation with ArtifactInfo{
+)(implicit val logger: Logger) extends ArtifactInfo with DependencyImplementation{
   val MavenDependency( groupId, artifactId, version, classifier ) = mavenDependency
   assert(
     Option(groupId).collect{
diff --git a/stage2/BasicBuild.scala b/stage2/BasicBuild.scala
index 98deddc..007c27e 100644
--- a/stage2/BasicBuild.scala
+++ b/stage2/BasicBuild.scala
@@ -10,7 +10,7 @@ import java.util.jar._
 import scala.util._
 
 class BasicBuild(val context: Context) extends BaseBuild
-trait BaseBuild extends DependencyImplementation with BuildInterface with TriggerLoop with SbtDependencyDsl{
+trait BaseBuild extends BuildInterface with DependencyImplementation with TriggerLoop with SbtDependencyDsl{
   def context: Context
   
   // library available to builds