Re: Missing source code (was: New Cobol Releases (was FASTSRT

In a recent note, Bill Klein said:

> Date: Tue, 30 Aug 2005 14:29:58 -0500
>
> <[log in to unmask]> wrote in message
> news:<[log in to unmask]>...
> > As the missing source code problem is popping up now and then, I'm
> thinking that maybe it would be a good idea to include the source code
> (compressed) in the load module, like you could do when compiling REXX
> programs. This would guarantee that you always have a source code matching
> the running programs.
>
What a concept! Such information would, of course, be invaluable
to a source language interactive debugger.

And, long ago, I had the thought that translator output listings
ought to be acceptable to the same translator as input. Many
programmers use their favorite editor as a listing viewer. Why
not, then be able to correct the typo in the same edit session
and resubmit that only viewable file to the translator? This
would require mostly that information added by the translator
be so delimited that the translator would ignore it; not even
echo it to the listing on the following iteration.

That reminds me of "Point and Shoot" editing. Place the cursor
on a translator message in the displayed listing; press a PF
key, and an edit session opens with the indicated line in the
source file centered and highlighted. HLASM provides sufficient
information in the listing to do this (unless the source is in
HFS); has anyone implemented it? Other mainframe languages?
I did it once for a truly odd couple: Mainsail and XEDIT under
VM/CMS.

BASIC and LightSpeed Pascal took the complementary approach:
they save nothing but the object code; the editable source is
generated by decompilation.

-- gil
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