Data commit

Task/Anonymous-recursion/Elena/anonymous-recursion.elena

@@ -0,0 +1,37 @@
+import extensions;
+
+fib(n)
+{
+    if (n < 0)
+        { InvalidArgumentException.raise() };
+
+    ^ (n)
+        {
+            if (n > 1)
+            {
+                ^ this self(n - 2) + (this self(n - 1))
+            }
+            else
+            {
+                ^ n
+            }
+        }(n)
+}
+
+public program()
+{
+    for (int i := -1, i <= 10, i += 1)
+    {
+        console.print("fib(",i,")=");
+        try
+        {
+            console.printLine(fib(i))
+        }
+        catch(Exception e)
+        {
+            console.printLine:"invalid"
+        }
+    };
+
+    console.readChar()
+}