giles
f5da2bcfd5
lib/hyperscript/integration.sx — connects compiled hyperscript to DOM: hs-handler(src) — compile source → callable (fn (me) ...) via eval-expr-cek hs-activate!(el) — read _="...", compile, execute with me=element hs-boot!() — scan document for [_] elements, activate all hs-boot-subtree!(root) — activate within subtree (for HTMX swaps) Handler wraps compiled SX in (fn (me) (let ((it nil) (event nil)) ...)) so each element gets its own me binding and clean it/event state. Double-activation prevented via data-hs-active marker. 12 integration tests verify full pipeline: source → compile → eval. Handlers correctly bind me, support arithmetic, conditionals, sequences, for loops, and repeat. 3111/3111 full build, zero regressions. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
66 lines
2.3 KiB
Plaintext
66 lines
2.3 KiB
Plaintext
;; _hyperscript integration — wire _="..." attributes to compiled SX
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;;
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;; Entry points:
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;; (hs-handler src) — compile source to callable (fn (me) ...)
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;; (hs-activate! el) — activate hyperscript on a single element
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;; (hs-boot!) — scan DOM, activate all _="..." elements
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;; (hs-boot-subtree! root) — activate within a subtree (for HTMX swaps)
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;; ── Compile source to a handler function ────────────────────────
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;; Returns a function (fn (me) ...) that can be called with a DOM element.
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;; Uses eval-expr-cek to turn the SX data structure into a live closure.
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(define
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hs-handler
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(fn
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(src)
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(let
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((sx (hs-to-sx-from-source src)))
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(eval-expr-cek
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(list
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(quote fn)
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(list (quote me))
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(list
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(quote let)
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(list (list (quote it) nil) (list (quote event) nil))
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sx))))))
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;; ── Activate a single element ───────────────────────────────────
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;; Reads the _="..." attribute, compiles, and executes with me=element.
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;; Marks the element to avoid double-activation.
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(define
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hs-activate!
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(fn
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(el)
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(let
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((src (dom-get-attr el "_")))
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(when
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(and src (not (dom-get-data el "hs-active")))
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(dom-set-data el "hs-active" true)
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(let ((handler (hs-handler src))) (handler el))))))
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;; ── Boot: scan entire document ──────────────────────────────────
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;; Called once at page load. Finds all elements with _ attribute,
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;; compiles their hyperscript, and activates them.
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(define
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hs-boot!
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(fn
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()
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(let
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((elements (dom-query-all (dom-body) "[_]")))
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(for-each (fn (el) (hs-activate! el)) elements))))
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;; ── Boot subtree: for dynamic content ───────────────────────────
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;; Called after HTMX swaps or dynamic DOM insertion.
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;; Only activates elements within the given root.
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(define
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hs-boot-subtree!
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(fn
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(root)
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(let
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((elements (dom-query-all root "[_]")))
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(for-each (fn (el) (hs-activate! el)) elements))
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(when (dom-get-attr root "_") (hs-activate! root)))) |