GNU bug report logs - #68941
[PATCH 00/44] Node : a solution for tiny packages.

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From: Liliana Marie Prikler <liliana.prikler <at> gmail.com>
To: Nicolas Graves <ngraves <at> ngraves.fr>, 68941 <at> debbugs.gnu.org
Subject: [bug#68941] [PATCH 02/44] guix: build-system: node: Add node-is-type-object helper.
Date: Tue, 06 Feb 2024 20:33:15 +0100

Am Dienstag, dem 06.02.2024 um 00:18 +0100 schrieb Nicolas Graves:
> * guix/build-system/node.scm (node-is-type-object): Add function.
> 
> Change-Id: I7027aff3b314cd999798afd8c11dc90ef7c6e43c
> ---
>  guix/build-system/node.scm | 14 ++++++++++++++
>  1 file changed, 14 insertions(+)
> 
> diff --git a/guix/build-system/node.scm b/guix/build-system/node.scm
> index 8a903b4fe5..b52b8f4f3e 100644
> --- a/guix/build-system/node.scm
> +++ b/guix/build-system/node.scm
> @@ -35,8 +35,22 @@ (define-module (guix build-system node)
>              node-build
>              node-build-system
>  
> +            node-is-type-object
>              node-trivial-package))
>  
> +(define* (node-is-type-object type #:optional (type-exists? #t))
> +  "Helper for node packages replacement.  This is actual code
> factorized from
> +the packages it replaces, use with caution.  It doesn't apply to all
> +javascript types."
Which types are excluded?
> +  (string-append
> +   "function(value) {"
> +   (if type-exists?
> +       (string-append
> +        "if (typeof value === '" (string-downcase type) "') {return
> true;} ")
> +       "")
> +   "if (value === null || typeof value !== 'object') {return false;}
> +  return Object.prototype.toString.call(value) === '[object " type
> "]';}"))
> +
I'd call this js-type-object? or perhaps make-js-type-predicate.

Cheers

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