Mailing List Archive: 49091 messages
  • Home
  • Script library
  • AltME Archive
  • Mailing list
  • Articles Index
  • Site search
 

[REBOL] faq

From: rebol665:ifrance at: 19-Jan-2002 12:47

Hi Rebollers Another FAQ from the time where I was asking myself and the Rebollers "Is Rebol suited for Object Oriented programming ?" and got no response :( <faq> How to pass function as argument? Short answer: Using 'get Problem illustration: An object function must be set to an outside function. obj: make object! [ name: "obj" obj-func: none ] fn1: does [print "Hello Rebollers"] fn2: func [ f [function!] ][ print "My task is to affect obj/obj-func with fn1" obj/obj-func: f ]
>> fn2 fn1
Hello Rebollers ** Script Error: fn2 expected f argument of type: function ** Where: do-boot ** Near: fn2 fn1
>>
Problem resolution Get must be used twice: (1) in the fn2 definition. (2) in the fn2 call. fn2: func [ f [function!] ][ print "My task is to affect obj/obj-func with fn1" obj/obj-func: get 'f ] fn2 get 'fn1 My task is to affect obj/obj-func with fn1 obj/obj-func Hello Rebollers </faq> Patrick