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Re: [Cbor] CDDL Module Design

Michael Richardson <mcr+ietf@sandelman.ca> Wed, 01 July 2020 15:30 UTC

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From: Michael Richardson <mcr+ietf@sandelman.ca>
To: Carsten Bormann <cabo@tzi.org>
cc: Jim Schaad <ietf@augustcellars.com>, cbor@ietf.org
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Date: Wed, 01 Jul 2020 11:30:39 -0400
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Subject: Re: [Cbor] CDDL Module Design
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Carsten Bormann <cabo@tzi.org> wrote:
    > On 2020-07-01, at 05:54, Michael Richardson <mcr+ietf@sandelman.ca> wrote:
    >>
    >> I prefer that the statement not be a pre-processor-like hack.

    > The C/C++ preprocessor may be considered a hack because it operates at
    > a lexical level.  We should not make that mistake.  Apart from that, it
    > does useful things.

    > Or, in other words, your hack may be my perfect layering.

I agree.
As has been pointed out in
   https://www.goodreads.com/book/show/44919.Working_Effectively_with_Legacy_Code

the preprocessor is a really good tool for inserting shims.
But, gosh, I'm hoping that this won't be a requirement for CDDL?

    > I would prefer it if a CDDL compiler (using that word in its english
    > sense) could spit out something that looks like CDDL 1.0 and has the
    > same semantics (well, maybe except for semantic names, which don’t
    > exist in CDDL 1.0).

Hmm. yes. Okay.

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