CODEWITHSUNDEEP
rebolred-lang
user310291
user310291

Reputation: 38190

use keyword in Rebol vs use keyword in Red

I wanted to use "Use" in Red but it seems it is quite different from use in Rebol, looking into help:

In Red:

  >> help use
       cause-error     function!     Causes an immediate error throw, w...

In Rebol

    >> help use
    USAGE:
        USE words body

    DESCRIPTION:
         Defines words local to a block.
         USE is a native value.

    ARGUMENTS:
         words -- Local word(s) to the block (Type: block word)
         body -- Block to evaluate (Type: block)
    >>

Is there an equivalent of Use in Red (/local or function not enough) so as to have block scope and not just function scope ?

Upvotes: 0

Views: 81

Answers (1)

sqlab
sqlab

Reputation: 6436

>> source use
USE is an unset! value, so source is not available.

use is not yet implemented. What you see is just a function where help is finding the string 'use' in 'cause-error'. That's a byproduct of the enhanced searching of help also in names, description and interface etc.

As long as there is no use you can always use an anonymous context / object e.g

>> context [
[        a: 1
[        set 'f does  [print a]
[    ]
== make object! [
    a: 1
]
>> f
1
>> a
*** Script Error: a has no value
*** Where: catch
*** Stack:

Upvotes: 1

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