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Re: User-defined record types, v2
From: |
Lars Brinkhoff |
Subject: |
Re: User-defined record types, v2 |
Date: |
Fri, 24 Mar 2017 11:15:38 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) |
Stefan Monnier wrote:
> BTW, I see further compatibility problems:
>
> if you compile a chunk of code which constructs structs, they get
> macroexpanded/inlined to code that does either
>
> (record 'FOO <args>)
> or
> (vector 'cl-struct-FOO <args>)
>
> depending on whether the corresponding cl-defstruct is using the old or
> the new style.
>
> So if this is in a different file from the one that does the
> `cl-defstruct` you can end up with a situation where the
> `cl-define-struct` defines a new-style struct (because it was recently
> recompiled), while some code constructs old style structs of that
> same type (because it hasn't been recompiled recently).
The easy way out would seem to have old-struct-compat set to t by
default. Then, maybe next major release default to nil.
Or check something in the .elc file when it's loaded. The Emacs version
number is there (or if it isn't, it's really ancient; looking at you
Emacs 16). Explicit information about using records could be put in.
- Re: User-defined record types, v2, (continued)
- Re: User-defined record types, v2, Lars Brinkhoff, 2017/03/19
- Re: User-defined record types, v2, Lars Brinkhoff, 2017/03/21
- Re: User-defined record types, v2, Stefan Monnier, 2017/03/21
- Re: User-defined record types, v2, Stefan Monnier, 2017/03/22
- Re: User-defined record types, v2, Lars Brinkhoff, 2017/03/23
- Re: User-defined record types, v2, Lars Brinkhoff, 2017/03/23
- Re: User-defined record types, v2, Lars Brinkhoff, 2017/03/23
- Re: User-defined record types, v2, Stefan Monnier, 2017/03/23
- Re: User-defined record types, v2,
Lars Brinkhoff <=
- Re: User-defined record types, v2, Stefan Monnier, 2017/03/24
- Re: User-defined record types, v2, Lars Brinkhoff, 2017/03/24
- Re: User-defined record types, v2, Lars Brinkhoff, 2017/03/29
- Re: User-defined record types, v2, Stefan Monnier, 2017/03/30
- Re: User-defined record types, v2, Lars Brinkhoff, 2017/03/30
- Re: User-defined record types, v2, Stefan Monnier, 2017/03/30
- Re: User-defined record types, v2, Eli Zaretskii, 2017/03/30
Re: User-defined record types, v2, Lars Brinkhoff, 2017/03/22