Re: Do functions exist?

1993-11-22 Thread Jeff Dalton
> > All (all?) I'm proposing is to print them out. > > Yes we do, and it's fine for the *implementation* to print such things out. > But it is NOT fine to cross the dividing line of (1) the implementation, and > (2) the language it implements. As I believe I have made abundantly clear > a showFu

Re: Do functions exist?

1993-11-19 Thread John Launchbury
>John says we can't go from a function to its concrete representation >ie E -> [E] - OK. He hints that implementations are from concrete >representations to real functions ie [E] -> E. I disagree profoundly. I'm not surprised you disagree. I hinted no such thing. Implementations manipulate repr

Do functions exist?

1993-11-19 Thread David Barton
Greg Michaelson writes: Incidentally, my point about not bothering to evaluate functional programs whose final values are functions was serious. Presumably, people don't generally write programs that return functions as final values? I suppose it depends on what you call a "function

Do functions exist?

1993-11-19 Thread Greg Michaelson
John says we can't go from a function to its concrete representation ie E -> [E] - OK. He hints that implementations are from concrete representations to real functions ie [E] -> E. I disagree profoundly. Implementations are from concrete representations to concrete representations. Suppose E1 i