Support array classes

Author: nicolasstucki

compiler/src/dotty/tools/dotc/core/quoted/PickledQuotes.scala

@@ -171,6 +171,8 @@ object PickledQuotes {
       else if (clazz == classOf[Float]) defn.FloatType
       else if (clazz == classOf[Double]) defn.DoubleType
       else defn.UnitType
+    } else if (clazz.isArray) {
+      defn.ArrayType.appliedTo(classToType(clazz.getComponentType))
     } else if (clazz.isMemberClass) {
       val name = clazz.getSimpleName.toTypeName
       val enclosing = classToType(clazz.getEnclosingClass)

tests/run-with-compiler/i3947e.check

@@ -0,0 +1,21 @@
+
+classOf[Object].getCanonicalName()
+java.lang.Object
+
+classOf[Array[Object]].getCanonicalName()
+java.lang.Object[]
+
+classOf[Array[Object]].getCanonicalName()
+java.lang.Object[]
+
+classOf[Array[Object]].getCanonicalName()
+java.lang.Object[]
+
+classOf[Array[Object]].getCanonicalName()
+java.lang.Object[]
+
+classOf[Array[Foo]].getCanonicalName()
+Foo[]
+
+classOf[Array[Array[Foo]]].getCanonicalName()
+Foo[][]

tests/run-with-compiler/i3947e.scala

@@ -0,0 +1,35 @@
+
+import scala.quoted._
+import dotty.tools.dotc.quoted.Toolbox._
+
+object Test {
+
+  def main(args: Array[String]): Unit = {
+
+    def test[T](clazz: java.lang.Class[T]): Unit = {
+      val lclazz = clazz.toExpr
+      val name = '{ (~clazz.toExpr).getCanonicalName }
+      println()
+      println(name.show)
+      println(name.run)
+    }
+
+    // class Object
+    test(classOf[Array[_]])
+
+    // class Array[Object]
+    test(classOf[Array[Any]])
+    test(classOf[Array[AnyVal]])
+    test(classOf[Array[AnyRef]])
+    test(classOf[Array[Object]])
+
+    // class Array[Foo]
+    test(classOf[Array[Foo]])
+
+    // class Array[Array[Foo]]
+    test(classOf[Array[Array[Foo]]])
+  }
+
+}
+
+class Foo

tests/run-with-compiler/i3947f.check

@@ -0,0 +1,30 @@
+
+classOf[Array[Boolean]].getCanonicalName()
+boolean[]
+
+classOf[Array[Byte]].getCanonicalName()
+byte[]
+
+classOf[Array[Char]].getCanonicalName()
+char[]
+
+classOf[Array[Short]].getCanonicalName()
+short[]
+
+classOf[Array[Int]].getCanonicalName()
+int[]
+
+classOf[Array[Long]].getCanonicalName()
+long[]
+
+classOf[Array[Float]].getCanonicalName()
+float[]
+
+classOf[Array[Double]].getCanonicalName()
+double[]
+
+classOf[Array[Array[Int]]].getCanonicalName()
+int[][]
+
+classOf[Array[Array[Array[Int]]]].getCanonicalName()
+int[][][]

tests/run-with-compiler/i3947f.scala

@@ -0,0 +1,31 @@
+
+import scala.quoted._
+import dotty.tools.dotc.quoted.Toolbox._
+
+object Test {
+
+  def main(args: Array[String]): Unit = {
+
+    def test[T](clazz: java.lang.Class[T]): Unit = {
+      val lclazz = clazz.toExpr
+      val name = '{ (~clazz.toExpr).getCanonicalName }
+      println()
+      println(name.show)
+      println(name.run)
+    }
+
+    // primitive arrays
+    test(classOf[Array[Boolean]])
+    test(classOf[Array[Byte]])
+    test(classOf[Array[Char]])
+    test(classOf[Array[Short]])
+    test(classOf[Array[Int]])
+    test(classOf[Array[Long]])
+    test(classOf[Array[Float]])
+    test(classOf[Array[Double]])
+
+    test(classOf[Array[Array[Int]]])
+    test(classOf[Array[Array[Array[Int]]]])
+  }
+
+}