Make dotty compile with 2.12.3

compiler/test/dotty/tools/ShowClassTests.scala

@@ -64,14 +64,14 @@ class ShowClassTests extends DottyTest {
     if (blackList contains path)
       debug_println(s"blacklisted package: $path")
     else {
-      for (
-        sym <- pkg.info.decls if sym.owner == pkg.moduleClass && !(sym.name.toString contains '$')
-      ) {
-        debug_println(s"showing $sym in ${pkg.fullName}")
-        if (sym is PackageVal) showPackage(sym.asTerm)
-        else if (sym.isClass && !(sym is Module)) showClass(sym)
-        else if (sym is ModuleVal) showClass(sym.moduleClass)
-      }
+      pkg.info.decls
+        .filter(sym => sym.owner == pkg.moduleClass && !(sym.name.toString contains '$'))
+        .foreach { sym =>
+          debug_println(s"showing $sym in ${pkg.fullName}")
+          if (sym is PackageVal) showPackage(sym.asTerm)
+          else if (sym.isClass && !(sym is Module)) showClass(sym)
+          else if (sym is ModuleVal) showClass(sym.moduleClass)
+        }
     }
   }
 

library/src/dotty/runtime/LazyVals.scala

@@ -6,7 +6,19 @@ import scala.annotation.tailrec
  * Helper methods used in thread-safe lazy vals.
  */
 object LazyVals {
-  private val unsafe = scala.concurrent.util.Unsafe.instance
+  private val unsafe: sun.misc.Unsafe =
+      classOf[sun.misc.Unsafe].getDeclaredFields.find { field =>
+        field.getType == classOf[sun.misc.Unsafe] && {
+          field.setAccessible(true)
+          true
+        }
+      }
+      .map(_.get(null).asInstanceOf[sun.misc.Unsafe])
+      .getOrElse {
+        throw new ExceptionInInitializerError {
+          new IllegalStateException("Can't find instance of sun.misc.Unsafe")
+        }
+      }
 
   final val BITS_PER_LAZY_VAL = 2L
   final val LAZY_VAL_MASK = 3L

library/src/scala/compat/java8/JFunction1.java

@@ -13,13 +13,12 @@ public interface JFunction1<T1, R> extends scala.Function1<T1, R> {
     @Override
     @SuppressWarnings("unchecked")
     default <A> scala.Function1<T1, A> andThen(scala.Function1<R, A> g) {
-        return scala.Function1$class.andThen(this, g);
+        return x -> g.apply(this.apply(x));
     }
-
     @Override
     @SuppressWarnings("unchecked")
     default <A> scala.Function1<A, R> compose(scala.Function1<A, T1> g) {
-        return scala.Function1$class.compose(this, g);
+        return x -> this.apply(g.apply(x));
     }
     @SuppressWarnings("unchecked")
     default void apply$mcVI$sp(int v1) {

library/src/scala/compat/java8/JFunction10.java

@@ -12,12 +12,12 @@ public interface JFunction10<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, R> extends
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, R>>>>>>>>>> curried() {
-      return scala.Function10$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple10<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10>, R> tupled() {
-      return scala.Function10$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction11.java

@@ -12,12 +12,12 @@ public interface JFunction11<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, R> ex
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, scala.Function1<T11, R>>>>>>>>>>> curried() {
-      return scala.Function11$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple11<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11>, R> tupled() {
-      return scala.Function11$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction12.java

@@ -12,12 +12,12 @@ public interface JFunction12<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, scala.Function1<T11, scala.Function1<T12, R>>>>>>>>>>>> curried() {
-      return scala.Function12$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple12<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12>, R> tupled() {
-      return scala.Function12$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction13.java

@@ -12,12 +12,12 @@ public interface JFunction13<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, scala.Function1<T11, scala.Function1<T12, scala.Function1<T13, R>>>>>>>>>>>>> curried() {
-      return scala.Function13$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple13<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13>, R> tupled() {
-      return scala.Function13$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction14.java

@@ -12,12 +12,12 @@ public interface JFunction14<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, scala.Function1<T11, scala.Function1<T12, scala.Function1<T13, scala.Function1<T14, R>>>>>>>>>>>>>> curried() {
-      return scala.Function14$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple14<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14>, R> tupled() {
-      return scala.Function14$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction15.java

@@ -12,12 +12,12 @@ public interface JFunction15<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, scala.Function1<T11, scala.Function1<T12, scala.Function1<T13, scala.Function1<T14, scala.Function1<T15, R>>>>>>>>>>>>>>> curried() {
-      return scala.Function15$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple15<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15>, R> tupled() {
-      return scala.Function15$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction16.java

@@ -12,12 +12,12 @@ public interface JFunction16<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, scala.Function1<T11, scala.Function1<T12, scala.Function1<T13, scala.Function1<T14, scala.Function1<T15, scala.Function1<T16, R>>>>>>>>>>>>>>>> curried() {
-      return scala.Function16$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple16<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16>, R> tupled() {
-      return scala.Function16$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction17.java

@@ -12,12 +12,12 @@ public interface JFunction17<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, scala.Function1<T11, scala.Function1<T12, scala.Function1<T13, scala.Function1<T14, scala.Function1<T15, scala.Function1<T16, scala.Function1<T17, R>>>>>>>>>>>>>>>>> curried() {
-      return scala.Function17$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple17<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17>, R> tupled() {
-      return scala.Function17$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction18.java

@@ -12,12 +12,12 @@ public interface JFunction18<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, scala.Function1<T11, scala.Function1<T12, scala.Function1<T13, scala.Function1<T14, scala.Function1<T15, scala.Function1<T16, scala.Function1<T17, scala.Function1<T18, R>>>>>>>>>>>>>>>>>> curried() {
-      return scala.Function18$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple18<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18>, R> tupled() {
-      return scala.Function18$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction19.java

@@ -12,12 +12,12 @@ public interface JFunction19<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, scala.Function1<T11, scala.Function1<T12, scala.Function1<T13, scala.Function1<T14, scala.Function1<T15, scala.Function1<T16, scala.Function1<T17, scala.Function1<T18, scala.Function1<T19, R>>>>>>>>>>>>>>>>>>> curried() {
-      return scala.Function19$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple19<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19>, R> tupled() {
-      return scala.Function19$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction2.java

@@ -5,19 +5,30 @@
 
 package scala.compat.java8;
 
+import scala.MatchError;
+
 @FunctionalInterface
 public interface JFunction2<T1, T2, R> extends scala.Function2<T1, T2, R> {
     default void $init$() {
     };
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, R>> curried() {
-      return scala.Function2$class.curried(this);
+      return x1 -> x2 -> apply(x1, x2);
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple2<T1, T2>, R> tupled() {
-      return scala.Function2$class.tupled(this);
+        return x0$1 -> {
+            if (x0$1 == null) {
+                throw new MatchError(x0$1);
+            }
+            T1 x1 = x0$1._1();
+            T2 x2 = x0$1._2();
+            R r = this.apply(x1, x2);
+            return r;
+        }
+        ;
     }
 
     @SuppressWarnings("unchecked")

library/src/scala/compat/java8/JFunction20.java

@@ -12,12 +12,12 @@ public interface JFunction20<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, scala.Function1<T11, scala.Function1<T12, scala.Function1<T13, scala.Function1<T14, scala.Function1<T15, scala.Function1<T16, scala.Function1<T17, scala.Function1<T18, scala.Function1<T19, scala.Function1<T20, R>>>>>>>>>>>>>>>>>>>> curried() {
-      return scala.Function20$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple20<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20>, R> tupled() {
-      return scala.Function20$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction21.java

@@ -12,12 +12,12 @@ public interface JFunction21<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, scala.Function1<T11, scala.Function1<T12, scala.Function1<T13, scala.Function1<T14, scala.Function1<T15, scala.Function1<T16, scala.Function1<T17, scala.Function1<T18, scala.Function1<T19, scala.Function1<T20, scala.Function1<T21, R>>>>>>>>>>>>>>>>>>>>> curried() {
-      return scala.Function21$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple21<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21>, R> tupled() {
-      return scala.Function21$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction22.java

@@ -12,12 +12,12 @@ public interface JFunction22<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12,
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, scala.Function1<T6, scala.Function1<T7, scala.Function1<T8, scala.Function1<T9, scala.Function1<T10, scala.Function1<T11, scala.Function1<T12, scala.Function1<T13, scala.Function1<T14, scala.Function1<T15, scala.Function1<T16, scala.Function1<T17, scala.Function1<T18, scala.Function1<T19, scala.Function1<T20, scala.Function1<T21, scala.Function1<T22, R>>>>>>>>>>>>>>>>>>>>>> curried() {
-      return scala.Function22$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple22<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22>, R> tupled() {
-      return scala.Function22$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }
 
 

library/src/scala/compat/java8/JFunction3.java

@@ -5,19 +5,31 @@
 
 package scala.compat.java8;
 
+import scala.MatchError;
+
 @FunctionalInterface
 public interface JFunction3<T1, T2, T3, R> extends scala.Function3<T1, T2, T3, R> {
     default void $init$() {
     };
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, R>>> curried() {
-      return scala.Function3$class.curried(this);
+      return x1 -> x2 -> x3 -> apply(x1, x2, x3);
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple3<T1, T2, T3>, R> tupled() {
-      return scala.Function3$class.tupled(this);
+        return x0$1 -> {
+            if (x0$1 == null) {
+                throw new MatchError(x0$1);
+            }
+            T1 x1 = x0$1._1();
+            T2 x2 = x0$1._2();
+            T3 x3 = x0$1._3();
+            R r = this.apply(x1, x2, x3);
+            return r;
+        }
+        ;
     }
 
 

library/src/scala/compat/java8/JFunction4.java

@@ -5,19 +5,32 @@
 
 package scala.compat.java8;
 
+import scala.MatchError;
+
 @FunctionalInterface
 public interface JFunction4<T1, T2, T3, T4, R> extends scala.Function4<T1, T2, T3, T4, R> {
     default void $init$() {
     };
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, R>>>> curried() {
-      return scala.Function4$class.curried(this);
+      return x1 -> x2 -> x3 -> x4 -> apply(x1, x2, x3, x4);
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple4<T1, T2, T3, T4>, R> tupled() {
-      return scala.Function4$class.tupled(this);
+        return x0$1 -> {
+            if (x0$1 == null) {
+                throw new MatchError(x0$1);
+            }
+            T1 x1 = x0$1._1();
+            T2 x2 = x0$1._2();
+            T3 x3 = x0$1._3();
+            T4 x4 = x0$1._4();
+            R r = this.apply(x1, x2, x3, x4);
+            return r;
+        }
+        ;
     }
 
 

library/src/scala/compat/java8/JFunction5.java

@@ -5,19 +5,21 @@
 
 package scala.compat.java8;
 
+import scala.MatchError;
+
 @FunctionalInterface
 public interface JFunction5<T1, T2, T3, T4, T5, R> extends scala.Function5<T1, T2, T3, T4, T5, R> {
     default void $init$() {
     };
 
     @SuppressWarnings("unchecked")
     default scala.Function1<T1, scala.Function1<T2, scala.Function1<T3, scala.Function1<T4, scala.Function1<T5, R>>>>> curried() {
-      return scala.Function5$class.curried(this);
+        throw new UnsupportedOperationException("todo");
     }
 
     @SuppressWarnings("unchecked")
     default scala.Function1<scala.Tuple5<T1, T2, T3, T4, T5>, R> tupled() {
-      return scala.Function5$class.tupled(this);
+        throw new UnsupportedOperationException("todo");
     }