Initial data commit

Task/Call-a-function/Ecstasy/call-a-function-9.ecstasy

@@ -0,0 +1,19 @@
+module PartialApplication {
+    void foo(String s, Int i, Dec d) {
+        @Inject Console console;
+        console.print($"inside call to foo({s=}, {i=}, {d=})");
+    }
+
+    void run() {
+        // note that the "&" obtains the reference to the function, and suppresses the
+        // invocation thereof, so it is *allowed* in all three of these cases, but it
+        // is *required* in the third case:
+        function void(String, Int, Dec) unbound   = foo;  // or "foo(_, _, _)"
+        function void(String, Dec)      partBound = unbound(_, 99, _);
+        function void()                 allBound  = &partBound("world", 3.14);
+
+        unbound("nothing", 0, 0.0);
+        partBound("hello", 2.718);
+        allBound();
+    }
+}