Data commit

Task/Generic-swap/Groovy/generic-swap-1.groovy

@@ -0,0 +1 @@
+(a, b) = [b, a]

Task/Generic-swap/Groovy/generic-swap-2.groovy

@@ -0,0 +1,3 @@
+def swap(a, b) {
+    [b, a]
+}

Task/Generic-swap/Groovy/generic-swap-3.groovy

@@ -0,0 +1,3 @@
+def (x, y) = swap(1, 3)
+assert x == 3
+assert y == 1

Task/Generic-swap/Groovy/generic-swap-4.groovy

@@ -0,0 +1,8 @@
+def listSwap = { a, i, j ->
+    assert (0..<(a.size())).containsAll([i,j]);
+    a[[j,i]] = a[[i,j]]
+}
+
+def list = [2,4,6,8]
+listSwap(list, 1, 3)
+assert list == [2,8,6,4]