[m-dev.] Freeze the compiler

[Ralph Becket]

>From schachte at cs.mu.OZ.AU on 13/11/2000 13:58:45
> 
> Three reasons.  1)  It chains better:  "X ^ foo(Y) ^ bar" looks clearer
> (to me) than  "bar(foo(X,Y))" or "foo(X,Y) ^ bar".  2)  It has the nice
> ':=' syntax to go with it.  You don't have to wonder or remember how
> to change an attribute of a term that has a '^' accessor for it, you
> just use ':='.  3) Chained '^' works a lot better with ':=' than nested
> functions.  "X ^ foo(Y) ^ bar := Z" looks clearer (to me) than
> "set_foo(X, Y, set_bar(foo(X, Y), Z))" (I think I've got it right now)
> or set_foo(X, Y, foo(X,Y) ^ bar := Z).
> 
Okay, I think I'm convinced.

	Map ^ image(Key)
	Map ^ image(Key) := Value

Okay, I'll buy that.  I think we should have X ^ f(A) ----> f(X, A)
since I also want to be able to pass around f(X) as an higher-order
value and I don't want a separate image/2 function for the purpose.

--
Ralph Becket      |      MSR Cambridge      |      rbeck at microsoft.com 

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