- Implement first class types in the VM.

runtime/lib/object.cc

Index: runtime/lib/object.cc
===================================================================
--- runtime/lib/object.cc	(revision 12980)
+++ runtime/lib/object.cc	(working copy)
@@ -55,4 +55,17 @@
   return Object::null();
 }
 
+
+DEFINE_NATIVE_ENTRY(Object_runtimeType, 1) {
+  const Instance& instance = Instance::CheckedHandle(arguments->At(0));
+  const Type& type = Type::Handle(instance.GetType());
+  return type.Canonicalize();
+}
+
+
+DEFINE_NATIVE_ENTRY(AbstractType_toString, 1) {
+  const AbstractType& type = AbstractType::CheckedHandle(arguments->At(0));
+  return type.Name();

[regis, 2012/09/27 21:12:40]

You may consider returning UserVisibleName() instead of Name().

[Ivan Posva, 2012/09/27 21:25:12]

I specifically chose Name and not UserVisibleName to avoid the confusion when
for example "int" is not the same as "int" since we have two different actual
int types.

+}
+
 }  // namespace dart