[REBOL] Re: Troube Calling Function within Object
From: larry:ecotope at: 28-Nov-2000 12:58
Hi Jamey
You could try something along these lines.
>> player: make object! [f: func [x][x * x]]
>> table: "player"
== "player"
>> do reduce [get in get to-word table 'f 6]
== 36
When the block is reduced TABLE evaluates to its string value "player", GET
returns the object named player, IN returns a reference to the field named
f, the outer GET returns the function f itself. This is the first element of
the reduced block, the second is the reduced value of 6 which is still 6.
Finally, the do applies the function to the argument 6. Using this approach
will cause the argument of the function to be evaluated twice, once by
reduce and again when the do applies the function to the argument.
Or, more simply, you can also just create a word in the outer context to
hold the function and use it normally.
>> ff: get in get to-word table 'f
>> ff 5
== 25
HTH
-Larry
