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rose-ash/lib/mod/defrule.sx
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mod: Ext 18 — ergonomic defrule / ruleset surface, 375/375
mod/defrule collects trailing conditions via &rest; mod/ruleset assembles rules.
No macro needed — conditions are plain data, fn supports &rest here. Produces
structurally identical rules to mk-rule (asserted) and works in the engine
unchanged. Closes the roadmap's original defrule surface. +11 tests.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-06 19:37:12 +00:00

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;; lib/mod/defrule.sx — ergonomic rule / ruleset construction.
;;
;; The roadmap sketched a (defrule action :when conditions) surface. Conditions
;; already evaluate to plain data, so this needs no macro — variadic functions
;; suffice: mod/defrule collects its trailing condition forms via &rest (dropping
;; the explicit outer (list ...)), and mod/ruleset assembles rules the same way.
;;
;; (mod/ruleset
;; (mod/defrule "spam-hide" :hide (list :classification "spam"))
;; (mod/defrule "default-keep" :keep))
(define
mod/defrule
(fn (name action &rest conds) (mod/mk-rule name action conds)))
(define mod/ruleset (fn (&rest rules) rules))