* bug#62067: 29.0.60; 'map-insert' implementation for lists is problematic
@ 2023-03-09 7:48 Augusto Stoffel
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From: Augusto Stoffel @ 2023-03-09 7:48 UTC (permalink / raw)
To: 62067; +Cc: Basil L. Contovounesios
Consider, for instance:
(map-insert '(:a 1) :a 2)
=> (:a 2 :a 1)
This result will confuse users and other libraries:
(json-encode (map-insert '(:a 1) :a 2))
=> "{\"a\":2,\"a\":1}"
Not even map.el can really handle these return values correctly:
(let (x)
(map-do (lambda (k v) (if (eq k :a) (setq x v)))
(map-insert '(:a old) :a 'new))
x)
=> old
The alist implementation has similar issues.
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2023-03-09 7:48 bug#62067: 29.0.60; 'map-insert' implementation for lists is problematic Augusto Stoffel
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