Merge pull request scala#483 from dotty-staging/fix-java8-alt

Fix jvm8 lamba related issues.

Author: DarkDimius

bin/dotc

@@ -6,7 +6,7 @@
 # Configuration
 SCALA_VERSION=2.11.5
 SCALA_BINARY_VERSION=2.11
-SCALA_COMPILER_VERSION=2.11.5-20150402-193021-0c75410da3
+SCALA_COMPILER_VERSION=2.11.5-20150416-144435-09c4a520e1
 DOTTY_VERSION=0.1
 JLINE_VERSION=2.12
 bootcp=true
@@ -57,13 +57,13 @@ checkjar $TEST_JAR test:package
 
 # Autodetecting the scala-library location, in case it wasn't provided by an environment variable
 if [ "$SCALA_LIBRARY_JAR" == "" ]
-then  
+then
   SCALA_LIBRARY_JAR=$HOME/.ivy2/cache/org.scala-lang/scala-library/jars/scala-library-$SCALA_VERSION.jar
   # this is location where sbt stores it in ivy cache
 fi
 # save as for scala-library now for scala-reflect
 if [ "$SCALA_REFLECT_JAR" == "" ]
-then  
+then
   SCALA_REFLECT_JAR=$HOME/.ivy2/cache/org.scala-lang/scala-reflect/jars/scala-reflect-$SCALA_VERSION.jar
 fi
 if [ "$SCALA_COMPILER_JAR" == "" ]
@@ -72,13 +72,13 @@ then
 fi
 
 if [ "$JLINE_JAR" == "" ]
-then  
+then
   JLINE_JAR=$HOME/.ivy2//cache/jline/jline/jars/jline-$JLINE_VERSION.jar
 fi
 
 if [ ! -f "$SCALA_LIBRARY_JAR" -o ! -f "$SCALA_REFLECT_JAR"  -o ! -f "$SCALA_COMPILER_JAR"  -o ! -f "$JLINE_JAR" ]
 then
-  echo To use this script please set 
+  echo To use this script please set
   echo SCALA_LIBRARY_JAR to point to scala-library-$SCALA_VERSION.jar "(currently $SCALA_LIBRARY_JAR)"
   echo SCALA_REFLECT_JAR to point to scala-reflect-$SCALA_VERSION.jar "(currently $SCALA_REFLECT_JAR)"
   echo SCALA_COMPILER_JAR to point to scala-compiler-$SCALA_VERSION.jar with bcode patches "(currently $SCALA_COMPILER_JAR)"

project/Build.scala

@@ -31,7 +31,7 @@ object DottyBuild extends Build {
     // get reflect and xml onboard
     libraryDependencies ++= Seq("org.scala-lang" % "scala-reflect" % scalaVersion.value,
                                 "org.scala-lang.modules" %% "scala-xml" % "1.0.1",
-                                "me.d-d" % "scala-compiler" % "2.11.5-20150402-193021-0c75410da3",
+                                "me.d-d" % "scala-compiler" % "2.11.5-20150416-144435-09c4a520e1",
                                 "jline" % "jline" % "2.12"),
 
     // get junit onboard

src/dotty/tools/backend/jvm/DottyBackendInterface.scala

@@ -103,6 +103,10 @@ class DottyBackendInterface()(implicit ctx: Context) extends BackendInterface{
   val BoxesRunTimeModule     = ctx.requiredModule("scala.runtime.BoxesRunTime")
   val BoxesRunTimeClass      = toDenot(BoxesRunTimeModule).moduleClass.asClass
 
+   // require LambdaMetafactory: scalac uses getClassIfDefined, but we need those always.
+  override lazy val LambdaMetaFactory = ctx.requiredClass("java.lang.invoke.LambdaMetafactory")
+  override lazy val MethodHandle      = ctx.requiredClass("java.lang.invoke.MethodHandle")
+
   val nme_valueOf: Name = StdNames.nme.valueOf
   val nme_apply = StdNames.nme.apply
   val NothingClass: Symbol = defn.NothingClass
@@ -423,7 +427,7 @@ class DottyBackendInterface()(implicit ctx: Context) extends BackendInterface{
       case TermRef(prefix: ThisType, name) =>
         Some(tpd.This(prefix.cls).select(i.symbol))
       case TermRef(NoPrefix, name) =>
-        if (i.symbol is Flags.Method) Some(This(i.symbol.enclosingClass).select(i.symbol)) // workaround #342 todo: remove after fixed
+        if (i.symbol is Flags.Method) Some(This(i.symbol.topLevelClass).select(i.symbol)) // workaround #342 todo: remove after fixed
         else None
       case _ => None
     }