Re: Most important aspect of any compiler (C or otherwise)

Newsgroups	comp.lang.c
Date	2016-10-04 12:08 -0700
References	<20aae408-4b77-483a-bb84-d05f5240f415@googlegroups.com> <nt0u8k$nhh$1@reader2.panix.com>
Message-ID	<c7ce2c7c-e448-46b1-bc7e-1f1bb5f3ebbf@googlegroups.com> (permalink)
Subject	Re: Most important aspect of any compiler (C or otherwise)
From	"Rick C. Hodgin" <rick.c.hodgin@gmail.com>

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On Tuesday, October 4, 2016 at 3:00:45 PM UTC-4, John Gordon wrote:
> In <20aae408-4b77-483a-bb84-d05f5240f415@googlegroups.com> "Rick C. Hodgin" <rick.c.hodgin@gmail.com> writes:
> 
> > For me?  Barring the obvious things like functionality and error-free binary
> > code, it would have to be edit-and-continue.  And without equal.
> 
> So when the compiler encounters an error, it retains the compilation
> artifacts (parse tree, symbol table, etc.) up to that point, and when the
> user corrects the error it continues compiling where it left off?
> 
> What if the correction changed something that has already been compiled?
> 
> How much time can it possibly save?  Compilation is pretty fast, no?

There are two approaches to the design.  Microsoft uses the top-down
recompilation which then looks for the deltas or diffs between the
generated binary images, and then updates things accordingly.  It often
breaks data or functions on the stack, or fails to compile completely
if you stray away.

The model I'm using for CAlive takes the approach of saving the full
compilation state.  Compilation is carried out continuously as things
are changed.  But in general, dependency trees are maintained and if
things which were dependent upon something that's changed has changed,
the entire related lines of source code are stricken and recompiled.

The last three passes of the compiler are static, and these apply the
deltas to the binary image and data, even auto-injecting stale members
during compilation to deal with things that have been actively deleted,
but remain in data or on the stack.

And a full recompile can be signaled at any time with a single command
or button click in the IDE.

And to satiate Ben's oft-comment at this point:  These are all the
planned operations.  They are not coded yet, but are almost completely
designed.  A few more aspects to find solutions to.

Best regards,
Rick C. Hodgin

Thread

Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-04 11:02 -0700
  Re: Most important aspect of any compiler (C or otherwise) John Gordon <gordon@panix.com> - 2016-10-04 19:00 +0000
    Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-04 12:08 -0700
      Re: Most important aspect of any compiler (C or otherwise) jacobnavia <jacob@jacob.remcomp.fr> - 2016-10-04 21:56 +0200
        Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-04 13:06 -0700
      Re: Most important aspect of any compiler (C or otherwise) BartC <bc@freeuk.com> - 2016-10-04 21:29 +0100
        Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-04 13:46 -0700
          Re: Most important aspect of any compiler (C or otherwise) BartC <bc@freeuk.com> - 2016-10-05 00:30 +0100
            Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-04 16:58 -0700
              Re: Most important aspect of any compiler (C or otherwise) gazelle@shell.xmission.com (Kenny McCormack) - 2016-10-05 01:07 +0000
            Re: Most important aspect of any compiler (C or otherwise) supercat@casperkitty.com - 2016-10-05 08:07 -0700
              Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-05 11:51 -0700
                Re: Most important aspect of any compiler (C or otherwise) supercat@casperkitty.com - 2016-10-05 14:08 -0700
                Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-05 14:25 -0700
                Re: Most important aspect of any compiler (C or otherwise) "Chris M. Thomasson" <invalid@invalid.invalid> - 2016-10-05 18:03 -0700
                Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-05 18:13 -0700
                Re: Most important aspect of any compiler (C or otherwise) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-05 19:08 -0700
                Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-05 19:18 -0700
                Re: Most important aspect of any compiler (C or otherwise) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-05 19:31 -0700
                Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-05 19:43 -0700
                Re: Most important aspect of any compiler (C or otherwise) Jerry Stuckle <jstucklex@attglobal.net> - 2016-10-05 22:22 -0400
                Re: Most important aspect of any compiler (C or otherwise) jacobnavia <jacob@jacob.remcomp.fr> - 2016-10-06 09:56 +0200
                Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-06 04:54 -0700
                Re: Most important aspect of any compiler (C or otherwise) mark.bluemel@gmail.com - 2016-10-06 05:06 -0700
                Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-06 05:27 -0700
                Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-06 05:32 -0700
          Re: Most important aspect of any compiler (C or otherwise) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-04 19:12 -0700
      Re: Most important aspect of any compiler (C or otherwise) Ian Collins <ian-news@hotmail.com> - 2016-10-05 13:42 +1300
        Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-05 04:53 -0700
          Re: Most important aspect of any compiler (C or otherwise) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-05 05:04 -0700
            Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-05 05:12 -0700
  Re: Most important aspect of any compiler (C or otherwise) Anand Hariharan <mailto.anand.hariharan@gmail.com> - 2016-10-07 15:02 -0700
    Re: Most important aspect of any compiler (C or otherwise) supercat@casperkitty.com - 2016-10-07 16:17 -0700
      Re: Most important aspect of any compiler (C or otherwise) luser droog <luser.droog@gmail.com> - 2016-10-07 18:11 -0700
        Re: Most important aspect of any compiler (C or otherwise) James Kuyper <jameskuyper@verizon.net> - 2016-10-07 23:53 -0400
          Re: Most important aspect of any compiler (C or otherwise) supercat@casperkitty.com - 2016-10-08 01:12 -0700
            Re: Most important aspect of any compiler (C or otherwise) jameskuyper@verizon.net - 2016-10-08 08:05 -0700
              Re: Most important aspect of any compiler (C or otherwise) supercat@casperkitty.com - 2016-10-08 10:15 -0700
          Re: Most important aspect of any compiler (C or otherwise) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-08 02:17 -0700
            Re: Most important aspect of any compiler (C or otherwise) gazelle@shell.xmission.com (Kenny McCormack) - 2016-10-08 11:02 +0000
              Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-08 05:14 -0700
              Re: Most important aspect of any compiler (C or otherwise) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-08 12:20 -0700
                Re: Most important aspect of any compiler (C or otherwise) supercat@casperkitty.com - 2016-10-08 15:31 -0700
                Re: Most important aspect of any compiler (C or otherwise) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-08 15:58 -0700
                Re: Most important aspect of any compiler (C or otherwise) supercat@casperkitty.com - 2016-10-08 17:46 -0700
            Re: Most important aspect of any compiler (C or otherwise) jameskuyper@verizon.net - 2016-10-08 08:09 -0700
          Re: Most important aspect of any compiler (C or otherwise) Keith Thompson <kst-u@mib.org> - 2016-10-08 14:49 -0700
            Re: Most important aspect of any compiler (C or otherwise) "James R. Kuyper" <jameskuyper@verizon.net> - 2016-10-09 11:12 -0400
      Re: Most important aspect of any compiler (C or otherwise) Jerry Stuckle <jstucklex@attglobal.net> - 2016-10-07 21:15 -0400
        Re: Most important aspect of any compiler (C or otherwise) supercat@casperkitty.com - 2016-10-08 01:02 -0700
          Re: Most important aspect of any compiler (C or otherwise) Jerry Stuckle <jstucklex@attglobal.net> - 2016-10-08 06:04 -0400
            Re: Most important aspect of any compiler (C or otherwise) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-10-08 11:45 +0100
              Re: Most important aspect of any compiler (C or otherwise) Jerry Stuckle <jstucklex@attglobal.net> - 2016-10-08 16:57 -0400
                Re: Most important aspect of any compiler (C or otherwise) Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-10-09 01:25 +0100
                Re: Most important aspect of any compiler (C or otherwise) Jerry Stuckle <jstucklex@attglobal.net> - 2016-10-08 21:29 -0400
            Re: Most important aspect of any compiler (C or otherwise) jameskuyper@verizon.net - 2016-10-08 07:49 -0700
              Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-08 08:04 -0700
              Re: Most important aspect of any compiler (C or otherwise) Jerry Stuckle <jstucklex@attglobal.net> - 2016-10-08 16:58 -0400
                Re: Most important aspect of any compiler (C or otherwise) jameskuyper@verizon.net - 2016-10-08 14:42 -0700
                Re: Most important aspect of any compiler (C or otherwise) Keith Thompson <kst-u@mib.org> - 2016-10-08 15:08 -0700
                Re: Most important aspect of any compiler (C or otherwise) Jerry Stuckle <jstucklex@attglobal.net> - 2016-10-08 19:27 -0400
                Re: Most important aspect of any compiler (C or otherwise) Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-10-08 16:37 -0700
                Re: Most important aspect of any compiler (C or otherwise) Jerry Stuckle <jstucklex@attglobal.net> - 2016-10-08 21:30 -0400
    Re: Most important aspect of any compiler (C or otherwise) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-10-07 18:31 -0700

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