Re: [Cbor] building "enum" from CDDL map keys

Carsten Bormann <cabo@tzi.org> Sun, 14 March 2021 21:29 UTC

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From: Carsten Bormann <cabo@tzi.org>
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Date: Sun, 14 Mar 2021 22:29:53 +0100
Cc: cbor@ietf.org
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To: Michael Richardson <mcr+ietf@sandelman.ca>
Archived-At: <https://mailarchive.ietf.org/arch/msg/cbor/lw2ZqsNzvg5QYXk-_JazhbCVk_E>
Subject: Re: [Cbor] building "enum" from CDDL map keys
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On 2021-03-14, at 22:08, Michael Richardson <mcr+ietf@sandelman.ca> wrote:
> 
> I looked through the cddl code, and I am not at all certain that CDDL has
> enough meta information about where the keys are used to be able to do this.
> I think that it's also possible to use the same key values in many places,
> and I even do this myself.

For each rule that defines a map, a tool could look at the keys used in that map and build a C enum from that.  This would require some conventions (i.e., the CDDL should look somewhat like yours), but it doesn’t sound too hard.

In my copious free time, I’ll see if I can hack this into the cddlc tool...

Grüße, Carsten

[Cbor] building "enum" from CDDL map keys Michael Richardson
Re: [Cbor] building "enum" from CDDL map keys Carsten Bormann
Re: [Cbor] building "enum" from CDDL map keys Carsten Bormann
Re: [Cbor] building "enum" from CDDL map keys Michael Richardson