OpenEuphoria

Re: routine_id help

• Posted by Roderick Jackson <rjackson at CSIWEB.COM> Feb 16, 1999
• 643 views

Oh, it might help to know that I'm running version 2.0. Then again, it =
might not...

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From:   Roderick Jackson[SMTP:rjackson at csiweb.com]
Sent:   Tuesday, February 16, 1999 10:47 AM
To:     'Euphoria'
Subject:        routine_id help

Okay, I'm stuck again and I need to once more draw from the infinite =
Euphoria knowledge of the list. 

Anytime I begin to think I understand "routine_id", it throws me a new =
curveball. I'm writing a library of routines that use "routine_id". One =
global routine in the library attempts to get the ID of any arbitrary =
user-defined function given to it. I've included the library file at the =
very top of my test program, then below the include I have my arbitrary =
functions, and finally my main procedure. For example:

    ------------------------
    -- mock library...
    ------------------------
   global function One ()
   end function

    -- more functions...

   global function N (sequence FunctionName)
      integer k
       -- next line gets -1, even though the created function name is =
valid
      k =3D routine_id (FunctionName & "_" & FunctionName)
       -- and now it breaks...
      return call_func (k, {})
   end function
    ------------------
    -- end library
    ------------------

    ---------------------
    -- test program
    ---------------------
   include library.e

   global function MyFunction_MyFunction ()
       -- process data...
      return {}
   end function

    -- more functions...

   procedure Main ()
      object ReturnValue
       -- process data...
       -- next line crashes
      ReturnValue =3D N ("MyFunction")
      ? ReturnValue

   end procedure

   Main ()
   -------------------------
   end test program
   -------------------------

Now in my main procedure, I call the global library routine, and let it =
construct (correctly) the name of one of my non-library functions. But =
using "routine_id" to identify that name returns -1. I know the function =
being identified must be visible; yet both the function using =
"routine_id" and the one being identified are global. Am I still doing =
something illegal? Must the library include the user-defined functions =
in order to access them?


Rod Jackson