On Wednesday, 26-August-2009 at 20:02:39 Giuseppe Chillemi wrote, >> He's talking about the possibility of multiple variables >> pointing at an immutable value: >> >> >> X: make object! [Name: {Spock}] >> >> A: B: :X > >You are right ! > >> Then, say, changing the object entirely: >> >> X: make object! [Species: {Human}] >> and having A and B now also point to the new object. > >You have interpreted correctly my message. > >> Here's a way to simulate it: >> >> X: reduce [make object! [Name: {Spock}]] >> >> A: B: X >> >> X/1: make object! [Species: {Human}] >> Now, A/1 and B/1 also point at the new object. > >I whish a more direct way able to be able to link to a function and have >many object point to that function and reuse the code.
Ok. Try ALIAS... >> alias 'x "aa" == aa >> alias 'x "bb" == bb >> x: make object! [name: "Spock"] >> probe x make object! [ name: "Spock" ] >> probe aa make object! [ name: "Spock" ] >> probe bb make object! [ name: "Spock" ] >> aa: make object! [species: "human"] >> probe x make object! [ species: "human" ] >> probe bb make object! [ species: "human" ] >> probe aa make object! [ species: "human" ] ALIAS only works if the words haven't already been used though. So this doesn't work... >> alias 'bb "cc" ** Script Error: Alias word is already in use: cc ** Near: alias 'bb "cc" -- Carl Read. -- To unsubscribe from the list, just send an email to lists at rebol.com with unsubscribe as the subject.