giles
4f02f82f4e
Parser: skip unit suffix when next ident is a comparison keyword (starts, ends, contains, matches, is, does, in, precedes, follows). Fixes "123 starts with '12'" returning "123starts" instead of true. eval-hs: use hs-compile directly instead of hs-to-sx-from-source with "return " prefix, which was causing the parser to consume the comparison as a string suffix. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
51 lines
3.4 KiB
Plaintext
51 lines
3.4 KiB
Plaintext
;; Static layout — takes &rest children where the three suspense slots go.
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(defcomp (&rest children)
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(div (~tw :tokens "space-y-8")
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(div (~tw :tokens "border-b border-stone-200 pb-6")
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(h1 (~tw :tokens "text-2xl font-bold text-stone-900") "Streaming & Suspense Demo")
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(p (~tw :tokens "mt-2 text-stone-600")
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"This page uses " (code (~tw :tokens "bg-stone-100 px-1 rounded text-violet-700") ":stream true")
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" in its defpage declaration. The browser receives the page skeleton instantly, "
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"then three IO sources resolve at staggered intervals (1s, 3s, 5s)."))
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;; Slot: suspense placeholders (or resolved content)
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(div (~tw :tokens "grid gap-4") children)
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;; Flow diagram
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(div (~tw :tokens "space-y-4")
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(h2 (~tw :tokens "text-lg font-semibold text-stone-800") "Streaming Flow")
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(div (~tw :tokens "grid gap-3")
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(map (fn (item)
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(div (~tw :tokens "flex items-start gap-3 rounded-lg border border-stone-200 bg-white p-4")
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(div (~tw :tokens "flex-shrink-0 w-8 h-8 rounded-full bg-violet-100 flex items-center justify-center text-violet-700 font-bold text-sm")
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(get item "label"))
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(p (~tw :tokens "text-stone-700 text-sm pt-1") (get item "detail"))))
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(list
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{:label "Shell" :detail "HTML shell with three suspense placeholders sent immediately"}
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{:label "Boot" :detail "sx-browser.js loads, renders fallback skeletons"}
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{:label "1s" :detail "Fast API responds — first skeleton replaced with green box"}
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{:label "3s" :detail "Database query completes — second skeleton replaced with blue box"}
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{:label "5s" :detail "ML inference finishes — third skeleton replaced with amber box"}))))
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;; How it works
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(div (~tw :tokens "rounded-lg border border-violet-200 bg-violet-50 p-5 space-y-3")
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(h2 (~tw :tokens "text-lg font-semibold text-violet-900") "How Multi-Stream Works")
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(ol (~tw :tokens "list-decimal list-inside text-violet-800 space-y-2 text-sm")
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(li "Server evaluates " (code ":data") " — gets an " (em "async generator"))
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(li "HTML shell with three " (code "~shared:pages/suspense") " placeholders sent immediately")
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(li "Generator yields first chunk after 1s — server sends " (code "__sxResolve(\"stream-fast\", ...)"))
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(li "Generator yields second chunk after 3s — " (code "__sxResolve(\"stream-medium\", ...)"))
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(li "Generator yields third chunk after 5s — " (code "__sxResolve(\"stream-slow\", ...)"))
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(li "Each resolve replaces its skeleton independently")))
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;; Technical details
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(div (~tw :tokens "rounded-lg border border-stone-200 bg-stone-50 p-4 text-sm space-y-2")
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(p (~tw :tokens "font-semibold text-stone-800") "Implementation details")
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(ul (~tw :tokens "list-disc list-inside text-stone-600 space-y-1")
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(li (code "defpage :stream true") " — opts the page into chunked transfer encoding")
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(li (code ":data") " helper is an async generator — each " (code "yield") " resolves a different suspense slot")
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(li "Each yield includes " (code "_stream_id") " matching a " (code "~shared:pages/suspense :id") " in the shell")
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(li (code ":content") " expression is re-evaluated with each yield's bindings")
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(li "Headers stream concurrently — independent of the data generator")
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(li "Future: SSE/WebSocket for re-resolving slots after initial page load")))))
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