pony: type expressions

Author: shyba

pony/tutorial/type_expressions/main.pony

@@ -0,0 +1,10 @@
+actor Main
+    new create(env: Env) =>
+        var tuple: (String, U32)
+        tuple = ("oi", 42)
+        env.out.print(tuple._1)
+        var age_or_name: (String | U32)
+        age_or_name = "name"
+        env.out.print(age_or_name.string())
+        age_or_name = 42
+        env.out.print(age_or_name.string())