tasks a-s

Task/Partial-function-application/E/partial-function-application.e

@@ -0,0 +1,26 @@
+def pa(f, args1) {
+  return def partial {
+    match [`run`, args2] {
+      E.call(f, "run", args1 + args2)
+    }
+  }
+}
+
+def fs(f, s) {
+  var r := []
+  for n in s {
+    r with= f(n)
+  }
+  return r
+}
+
+def f1(n) { return n * 2 }
+def f2(n) { return n ** 2 }
+
+def fsf1 := pa(fs, [f1])
+def fsf2 := pa(fs, [f2])
+for s in [0..3, [2, 4, 6, 8]] {
+  for f in [fsf1, fsf2] {
+    println(f(s))
+  }
+}