SI-5888 Mirrors now have sane toStrings

Adds informative toString for InstanceMirror, FieldMirror,
MethodMirror (for methods and constructors), ClassMirror and ModuleMirror.

Universe mirrors (e.g. JavaMirrors or compiler mirrors) already have good
toString methods that show their affiliation and/or classpaths.

1 files changed, 43 insertions, 0 deletions

diff --git a/test/files/run/reflection-allmirrors-tostring.scala b/test/files/run/reflection-allmirrors-tostring.scala
new file mode 100644
index 0000000000..73afff291c
--- /dev/null
+++ b/test/files/run/reflection-allmirrors-tostring.scala
@@ -0,0 +1,43 @@
+import scala.reflect.runtime.universe._
+
+class C {
+  val f1 = 2
+  var f2 = 3
+
+  def m1 = 4
+  def m2() = 5
+  def m3[T >: String <: Int]: T = ???
+  def m4[A[_], B <: A[Int]](x: A[B])(implicit y: Int) = ???
+  def m5(x: => Int, y: Int*): String = ???
+
+  class C
+  object M
+
+  override def toString = "an instance of C"
+}
+object M
+
+object Test extends App {
+  val cm = scala.reflect.runtime.currentMirror
+//  println(cm)
+
+  println(cm.reflectClass(cm.staticClass("C")))
+  println(cm.reflectModule(cm.staticModule("M")))
+  println(cm.reflect(new C))
+
+  val im = cm.reflect(new C)
+  println(im.reflectField(typeOf[C].member(newTermName("f1")).asTerm))
+  println(im.reflectField(typeOf[C].member(newTermName("f2")).asTerm))
+  println(im.reflectMethod(typeOf[C].member(newTermName("m1")).asMethod))
+  println(im.reflectMethod(typeOf[C].member(newTermName("m2")).asMethod))
+  println(im.reflectMethod(typeOf[C].member(newTermName("m3")).asMethod))
+  println(im.reflectMethod(typeOf[C].member(newTermName("m4")).asMethod))
+  println(im.reflectMethod(typeOf[C].member(newTermName("m5")).asMethod))
+  println(im.reflectClass(typeOf[C].member(newTypeName("C")).asClass))
+  println(im.reflectModule(typeOf[C].member(newTermName("M")).asModule))
+
+  val c = cm.staticClass("C")
+  val cc = typeOf[C].member(newTypeName("C")).asClass
+  println(cm.reflectClass(c).reflectConstructor(c.typeSignature.member(nme.CONSTRUCTOR).asMethod))
+  println(im.reflectClass(cc).reflectConstructor(cc.typeSignature.member(nme.CONSTRUCTOR).asMethod))
+}
\ No newline at end of file