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

From	Ian Collins <ian-news@hotmail.com>
Newsgroups	comp.lang.c
Subject	Re: Most important aspect of any compiler (C or otherwise)
Date	2016-10-05 13:42 +1300
Message-ID	<e5j0jlFu8t0U1@mid.individual.net> (permalink)
References	<20aae408-4b77-483a-bb84-d05f5240f415@googlegroups.com> <nt0u8k$nhh$1@reader2.panix.com> <c7ce2c7c-e448-46b1-bc7e-1f1bb5f3ebbf@googlegroups.com>

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On 10/ 5/16 08:08 AM, Rick C. Hodgin wrote:
> 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.

All well and good for a single file or trivial application, but things 
would get horribly complex (and memory consuming) if you were working on 
one part of a large and complex application.

Most popular IDEs use some form of background compilation which 
highlights errors as you type.  This will take care of most of your 
brain to finger problems.  Unit tests will catch the rest!

-- 
Ian

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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