giles
770c7fd821
Two hyperscript extensions beyond stock:
render ~component :key val [into|before|after target]
Tokenizer: ~ + ident → component token type
Parser: render command with kwargs and optional position
Compiler: emits (render-to-html ~comp :key val) or
(hs-put! (render-to-html ...) pos target)
Bridges hyperscript flow to SX component rendering
eval (sx-expression) — SX escape hatch
Inside eval (...), content is SX syntax (not hyperscript)
Parser: collect-sx-source extracts balanced parens from raw source
Compiler: sx-parse at compile time, inlines AST directly
Result: SX runs in handler scope — hyperscript variables visible!
Also supports string form: eval '(+ 1 2)' for backward compat
set name to "Giles"
set greeting to eval (str "Hello " name) -- name is visible!
16 new tests (parser + compiler + integration).
3127/3127 full build, zero regressions.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
569 lines
20 KiB
Plaintext
569 lines
20 KiB
Plaintext
;; _hyperscript compiler — AST → SX expressions
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;;
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;; Input: AST from hs-parse (list structures)
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;; Output: SX expressions targeting web/lib/dom.sx primitives
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;;
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;; Usage:
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;; (hs-to-sx (hs-compile "on click add .active to me"))
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;; → (hs-on me "click" (fn (event) (dom-add-class me "active")))
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(define
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hs-to-sx
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(let
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((dot-sym (make-symbol ".")) (pct-sym (make-symbol "%")))
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(define emit-target (fn (ast) (hs-to-sx ast)))
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(define
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emit-set
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(fn
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(target value)
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(if
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(not (list? target))
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(list (quote set!) target value)
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(let
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((th (first target)))
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(cond
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((= th dot-sym)
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(list
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(quote dom-set-prop)
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(hs-to-sx (nth target 1))
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(nth target 2)
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value))
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((= th (quote attr))
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(list
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(quote dom-set-attr)
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(hs-to-sx (nth target 2))
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(nth target 1)
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value))
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((= th (quote style))
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(list
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(quote dom-set-style)
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(hs-to-sx (nth target 2))
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(nth target 1)
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value))
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((= th (quote ref))
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(list (quote set!) (make-symbol (nth target 1)) value))
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((= th (quote local))
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(list (quote set!) (make-symbol (nth target 1)) value))
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((= th (quote me))
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(list (quote dom-set-inner-html) (quote me) value))
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((= th (quote it)) (list (quote set!) (quote it) value))
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(true (list (quote set!) (hs-to-sx target) value)))))))
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(define
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emit-on
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(fn
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(ast)
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(let
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((parts (rest ast)))
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(let
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((event-name (first parts)))
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(define
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scan-on
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(fn
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(items source filter every?)
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(cond
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((<= (len items) 1)
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(let
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((body (if (> (len items) 0) (first items) nil)))
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(let
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((target (if source (hs-to-sx source) (quote me))))
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(let
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((handler (list (quote fn) (list (quote event)) (hs-to-sx body))))
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(if
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every?
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(list
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(quote hs-on-every)
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target
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event-name
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handler)
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(list (quote hs-on) target event-name handler))))))
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((= (first items) :from)
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(scan-on
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(rest (rest items))
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(nth items 1)
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filter
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every?))
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((= (first items) :filter)
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(scan-on
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(rest (rest items))
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source
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(nth items 1)
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every?))
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((= (first items) :every)
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(scan-on (rest (rest items)) source filter true))
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(true (scan-on (rest items) source filter every?)))))
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(scan-on (rest parts) nil nil false)))))
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(define
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emit-send
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(fn
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(ast)
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(let
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((name (nth ast 1)) (rest-parts (rest (rest ast))))
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(cond
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((and (= (len ast) 4) (list? (nth ast 2)) (= (first (nth ast 2)) (quote dict)))
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(list
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(quote dom-dispatch)
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(hs-to-sx (nth ast 3))
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name
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(hs-to-sx (nth ast 2))))
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((= (len ast) 3)
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(list (quote dom-dispatch) (hs-to-sx (nth ast 2)) name nil))
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(true (list (quote dom-dispatch) (quote me) name nil))))))
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(define
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emit-repeat
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(fn
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(ast)
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(let
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((mode (nth ast 1)) (body (hs-to-sx (nth ast 2))))
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(cond
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((and (list? mode) (= (first mode) (quote forever)))
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(list
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(quote hs-repeat-forever)
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(list (quote fn) (list) body)))
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((and (list? mode) (= (first mode) (quote times)))
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(list
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(quote hs-repeat-times)
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(hs-to-sx (nth mode 1))
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(list (quote fn) (list) body)))
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((number? mode)
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(list
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(quote hs-repeat-times)
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mode
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(list (quote fn) (list) body)))
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(true
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(list
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(quote hs-repeat-times)
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(hs-to-sx mode)
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(list (quote fn) (list) body)))))))
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(define
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emit-for
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(fn
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(ast)
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(let
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((var-name (nth ast 1))
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(collection (hs-to-sx (nth ast 2)))
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(body (hs-to-sx (nth ast 3))))
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(if
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(and (> (len ast) 4) (= (nth ast 4) :index))
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(list
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(quote for-each)
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(list
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(quote fn)
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(list (make-symbol var-name) (make-symbol (nth ast 5)))
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body)
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collection)
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(list
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(quote for-each)
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(list (quote fn) (list (make-symbol var-name)) body)
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collection)))))
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(define
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emit-wait-for
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(fn
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(ast)
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(let
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((event-name (nth ast 1)))
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(if
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(and (> (len ast) 2) (= (nth ast 2) :from))
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(list (quote hs-wait-for) (hs-to-sx (nth ast 3)) event-name)
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(list (quote hs-wait-for) (quote me) event-name)))))
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(define
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emit-transition
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(fn
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(ast)
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(let
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((prop (nth ast 1)) (value (hs-to-sx (nth ast 2))))
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(if
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(= (len ast) 5)
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(list
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(quote hs-transition)
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(hs-to-sx (nth ast 4))
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prop
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value
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(nth ast 3))
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(list
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(quote hs-transition)
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(hs-to-sx (nth ast 3))
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prop
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value
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nil)))))
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(define
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emit-make
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(fn
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(ast)
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(if
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(= (len ast) 3)
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(list
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(quote let)
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(list
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(list
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(make-symbol (nth ast 2))
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(list (quote hs-make) (nth ast 1))))
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(make-symbol (nth ast 2)))
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(list (quote hs-make) (nth ast 1)))))
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(define
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emit-inc
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(fn
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(target)
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(let
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((t (hs-to-sx target)))
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(if
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(and (list? target) (= (first target) (quote attr)))
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(list
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(quote dom-set-attr)
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(hs-to-sx (nth target 2))
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(nth target 1)
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(list
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(quote +)
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(list
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(quote dom-get-attr)
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(hs-to-sx (nth target 2))
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(nth target 1))
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1))
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(list (quote set!) t (list (quote +) t 1))))))
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(define
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emit-dec
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(fn
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(target)
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(let
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((t (hs-to-sx target)))
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(if
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(and (list? target) (= (first target) (quote attr)))
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(list
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(quote dom-set-attr)
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(hs-to-sx (nth target 2))
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(nth target 1)
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(list
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(quote -)
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(list
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(quote dom-get-attr)
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(hs-to-sx (nth target 2))
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(nth target 1))
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1))
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(list (quote set!) t (list (quote -) t 1))))))
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(define
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emit-behavior
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(fn
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(ast)
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(let
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((name (nth ast 1)) (params (nth ast 2)) (body (nth ast 3)))
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(list
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(quote define)
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(make-symbol name)
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(list
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(quote fn)
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(cons (quote me) (map make-symbol params))
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(cons (quote do) (map hs-to-sx body)))))))
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(fn
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(ast)
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(cond
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((nil? ast) nil)
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((number? ast) ast)
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((string? ast) ast)
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((boolean? ast) ast)
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((not (list? ast)) ast)
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(true
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(let
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((head (first ast)))
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(cond
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((= head (quote me)) (quote me))
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((= head (quote it)) (quote it))
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((= head (quote event)) (quote event))
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((= head dot-sym)
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(list (quote get) (hs-to-sx (nth ast 1)) (nth ast 2)))
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((= head (quote ref)) (make-symbol (nth ast 1)))
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((= head (quote query))
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(list (quote dom-query) (nth ast 1)))
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((= head (quote attr))
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(list
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(quote dom-get-attr)
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(hs-to-sx (nth ast 2))
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(nth ast 1)))
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((= head (quote style))
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(list
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(quote dom-get-style)
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(hs-to-sx (nth ast 2))
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(nth ast 1)))
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((= head (quote local)) (make-symbol (nth ast 1)))
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((= head (quote array))
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(cons (quote list) (map hs-to-sx (rest ast))))
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((= head (quote not))
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(list (quote not) (hs-to-sx (nth ast 1))))
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((= head (quote no))
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(list (quote not) (hs-to-sx (nth ast 1))))
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((= head (quote and))
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(list
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(quote and)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head (quote or))
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(list
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(quote or)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head (quote =))
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(list
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(quote =)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head (quote +))
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(list
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(quote +)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head (quote -))
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(list
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(quote -)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head (quote *))
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(list
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(quote *)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head (quote /))
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(list
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(quote /)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head pct-sym)
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(list
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pct-sym
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head (quote empty?))
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(list (quote empty?) (hs-to-sx (nth ast 1))))
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((= head (quote exists?))
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(list
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(quote not)
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(list (quote nil?) (hs-to-sx (nth ast 1)))))
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((= head (quote matches?))
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(list
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(quote dom-matches?)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head (quote contains?))
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(list
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(quote contains?)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head (quote as))
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(list (quote hs-coerce) (hs-to-sx (nth ast 1)) (nth ast 2)))
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((= head (quote in?))
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(list
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(quote contains?)
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(hs-to-sx (nth ast 2))
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(hs-to-sx (nth ast 1))))
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((= head (quote of))
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(list
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(quote get)
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(hs-to-sx (nth ast 2))
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(hs-to-sx (nth ast 1))))
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((= head "!=")
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(list
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(quote not)
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(list
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(quote =)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2)))))
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((= head "<")
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(list
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(quote <)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head ">")
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(list
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(quote >)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head "<=")
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(list
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(quote <=)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head ">=")
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(list
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(quote >=)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))))
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((= head (quote closest))
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(list
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(quote dom-closest)
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(hs-to-sx (nth ast 2))
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(nth ast 1)))
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((= head (quote next))
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(list (quote hs-next) (hs-to-sx (nth ast 2)) (nth ast 1)))
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((= head (quote previous))
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(list
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(quote hs-previous)
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(hs-to-sx (nth ast 2))
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(nth ast 1)))
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((= head (quote first))
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(if
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(> (len ast) 2)
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(list
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(quote hs-first)
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(hs-to-sx (nth ast 2))
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(nth ast 1))
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(list (quote hs-query-first) (nth ast 1))))
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((= head (quote last))
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(if
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(> (len ast) 2)
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(list (quote hs-last) (hs-to-sx (nth ast 2)) (nth ast 1))
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(list (quote hs-query-last) (nth ast 1))))
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((= head (quote add-class))
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(list
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(quote dom-add-class)
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(hs-to-sx (nth ast 2))
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(nth ast 1)))
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((= head (quote remove-class))
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(list
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(quote dom-remove-class)
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(hs-to-sx (nth ast 2))
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(nth ast 1)))
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((= head (quote toggle-class))
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(list
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(quote hs-toggle-class!)
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(hs-to-sx (nth ast 2))
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(nth ast 1)))
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((= head (quote toggle-between))
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(list
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(quote hs-toggle-between!)
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(hs-to-sx (nth ast 3))
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(nth ast 1)
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(nth ast 2)))
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((= head (quote set!))
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(emit-set (nth ast 1) (hs-to-sx (nth ast 2))))
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((= head (quote put!))
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(list
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(quote hs-put!)
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(hs-to-sx (nth ast 1))
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(nth ast 2)
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(hs-to-sx (nth ast 3))))
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((= head (quote if))
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(if
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(> (len ast) 3)
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(list
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(quote if)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2))
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(hs-to-sx (nth ast 3)))
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(list
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(quote when)
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(hs-to-sx (nth ast 1))
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(hs-to-sx (nth ast 2)))))
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((= head (quote do))
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(cons (quote do) (map hs-to-sx (rest ast))))
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((= head (quote wait)) (list (quote hs-wait) (nth ast 1)))
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((= head (quote wait-for)) (emit-wait-for ast))
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((= head (quote log))
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(list (quote log) (hs-to-sx (nth ast 1))))
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((= head (quote send)) (emit-send ast))
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((= head (quote trigger))
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(list
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(quote dom-dispatch)
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(hs-to-sx (nth ast 2))
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(nth ast 1)
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nil))
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((= head (quote hide))
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(list
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(quote dom-set-style)
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(hs-to-sx (nth ast 1))
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"display"
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"none"))
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((= head (quote show))
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(list
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(quote dom-set-style)
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(hs-to-sx (nth ast 1))
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"display"
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""))
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((= head (quote transition)) (emit-transition ast))
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((= head (quote repeat)) (emit-repeat ast))
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((= head (quote fetch))
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(list (quote hs-fetch) (hs-to-sx (nth ast 1)) (nth ast 2)))
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((= head (quote call))
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(cons
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(make-symbol (nth ast 1))
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(map hs-to-sx (rest (rest ast)))))
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((= head (quote return)) (hs-to-sx (nth ast 1)))
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((= head (quote throw))
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(list (quote raise) (hs-to-sx (nth ast 1))))
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((= head (quote settle))
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(list (quote hs-settle) (quote me)))
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((= head (quote go))
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(list (quote hs-navigate!) (hs-to-sx (nth ast 1))))
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((= head (quote append!))
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(list
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(quote dom-append)
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(hs-to-sx (nth ast 2))
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(hs-to-sx (nth ast 1))))
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((= head (quote tell))
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(list
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(quote let)
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(list (list (quote me) (hs-to-sx (nth ast 1))))
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(hs-to-sx (nth ast 2))))
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((= head (quote for)) (emit-for ast))
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((= head (quote take))
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(list (quote hs-take!) (hs-to-sx (nth ast 2)) (nth ast 1)))
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((= head (quote make)) (emit-make ast))
|
|
((= head (quote install))
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|
(cons (quote hs-install) (map hs-to-sx (rest ast))))
|
|
((= head (quote measure))
|
|
(list (quote hs-measure) (hs-to-sx (nth ast 1))))
|
|
((= head (quote increment!)) (emit-inc (nth ast 1)))
|
|
((= head (quote decrement!)) (emit-dec (nth ast 1)))
|
|
((= head (quote on)) (emit-on ast))
|
|
((= head (quote init))
|
|
(list
|
|
(quote hs-init)
|
|
(list (quote fn) (list) (hs-to-sx (nth ast 1)))))
|
|
((= head (quote def))
|
|
(list
|
|
(quote define)
|
|
(make-symbol (nth ast 1))
|
|
(list
|
|
(quote fn)
|
|
(map make-symbol (nth ast 2))
|
|
(hs-to-sx (nth ast 3)))))
|
|
((= head (quote behavior)) (emit-behavior ast))
|
|
((= head (quote sx-eval))
|
|
(let
|
|
((src (nth ast 1)))
|
|
(if
|
|
(string? src)
|
|
(first (sx-parse src))
|
|
(list (quote cek-eval) (hs-to-sx src)))))
|
|
((= head (quote component)) (make-symbol (nth ast 1)))
|
|
((= head (quote render))
|
|
(let
|
|
((comp-raw (nth ast 1))
|
|
(kwargs (nth ast 2))
|
|
(pos (if (> (len ast) 3) (nth ast 3) nil))
|
|
(target
|
|
(if (> (len ast) 4) (hs-to-sx (nth ast 4)) nil)))
|
|
(let
|
|
((comp (if (string? comp-raw) (make-symbol comp-raw) (hs-to-sx comp-raw))))
|
|
(define
|
|
emit-kw-pairs
|
|
(fn
|
|
(pairs)
|
|
(if
|
|
(< (len pairs) 2)
|
|
(list)
|
|
(cons
|
|
(make-keyword (first pairs))
|
|
(cons
|
|
(hs-to-sx (nth pairs 1))
|
|
(emit-kw-pairs (rest (rest pairs))))))))
|
|
(let
|
|
((render-call (cons (quote render-to-html) (cons comp (emit-kw-pairs kwargs)))))
|
|
(if
|
|
pos
|
|
(list
|
|
(quote hs-put!)
|
|
render-call
|
|
pos
|
|
(if target target (quote me)))
|
|
render-call)))))
|
|
(true ast))))))))
|
|
|
|
;; ── Convenience: source → SX ─────────────────────────────────
|
|
(define hs-to-sx-from-source (fn (src) (hs-to-sx (hs-compile src)))) |