russell@unturf.com
346b873247
Adds a parallel build of all three Lumbda implementations to WASM, a
single-page playground at www/playground/, and a verified test suite.
Tiers
- Python: Pyodide (CPython-in-WASM) hosting lumbda.py
- C: Emscripten build of c/ (tree-walker + bytecode VM; jit.c
stubbed, gc.c uses its existing no-Boehm fallback)
- Asm: hand-written asm/lumbda.wat — parallel impl to asm/lumbda.s.
Reader, eval (lambda/define/if/cond/let/and/or/quote/set!),
recursion across mutated top-level env, bump allocator with
memory.grow, 24 primitives. ~1200 lines of raw WAT.
SPA (wasm/app/, deployed to www/playground/)
- CodeMirror 6 editor (Scheme highlighting) on left, output on right
- Radios: 4 demos (Mandelbrot, Fib+Ack, Sieve, self-interp meta-eval)
x 4 tiers (Python | C | Asm | All three)
- All-three mode renders the three tier outputs side by side with
per-tier elapsed timing
Tests (38 verified assertions)
- 20 unit (Node): per-tier module loads, eval smoke
- 8 integration (Node): each demo on c+asm WASM byte-matches the
canonical native Python run
- 10 functional (Playwright headless Chromium): page mounts, every
demo runs on every tier, all-three renders
Makefile
- Root targets: wasm-build, wasm-test, wasm-test-fn, wasm-serve,
wasm-deploy, wasm-clean
- wasm/Makefile orchestrates the three tier builds; deploy copies
dist/ into www/playground/
Asm tier notes
- WAT linear symbol intern + linear env lookup is MOAD-0001 at scale;
documented in the asm/lumbda.wat header and in the SPA footer. The
demos hit ~30 globals so the linear walks are cheap enough.
- Bump allocator never frees (matches asm/lumbda.s heap discipline);
memory.grow expands by 1 MB chunks. Browser tab tears down at unload.
Toolchain (developer prerequisites)
- Emscripten 6.0.0 via emsdk at ~/git/emsdk
- wabt 1.0.36 at ~/git/wabt
- Playwright for functional tests (symlinked from ~/git/agnt)
183 lines
3.3 KiB
CSS
183 lines
3.3 KiB
CSS
/* Lumbda playground SPA — vanilla CSS, mono terminal aesthetic */
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:root {
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--bg: #0f1115;
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--fg: #d6dadf;
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--dim: #8b9099;
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--accent: #6ee7b7;
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--warn: #fbbf24;
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--err: #fb7185;
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--pane: #15181f;
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--border: #262a33;
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--mono: ui-monospace, "SF Mono", Menlo, Consolas, "Courier New", monospace;
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}
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* { box-sizing: border-box; }
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html, body {
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margin: 0; padding: 0;
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background: var(--bg);
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color: var(--fg);
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font-family: var(--mono);
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font-size: 13px;
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height: 100%;
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}
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header {
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padding: 16px 24px 8px;
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border-bottom: 1px solid var(--border);
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}
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header h1 {
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margin: 0 0 4px;
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font-size: 18px;
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font-weight: 600;
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color: var(--accent);
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}
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header h1 .sub {
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color: var(--dim);
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font-weight: 400;
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font-size: 13px;
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}
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header .tag {
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margin: 0;
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color: var(--dim);
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font-size: 12px;
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line-height: 1.5;
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}
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header code {
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color: var(--warn);
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font-size: 11px;
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}
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header strong {
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color: var(--fg);
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font-weight: 600;
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}
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.controls {
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padding: 12px 24px;
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border-bottom: 1px solid var(--border);
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display: flex;
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gap: 16px;
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align-items: center;
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flex-wrap: wrap;
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}
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.controls fieldset {
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border: 1px solid var(--border);
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border-radius: 4px;
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padding: 4px 10px 6px;
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margin: 0;
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}
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.controls fieldset legend {
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color: var(--dim);
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font-size: 11px;
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padding: 0 4px;
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text-transform: uppercase;
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letter-spacing: 0.06em;
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}
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.controls label {
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margin-right: 10px;
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cursor: pointer;
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user-select: none;
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}
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.controls label input { margin-right: 4px; }
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.controls button {
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background: var(--accent);
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color: #0a0c0f;
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border: none;
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padding: 6px 16px;
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border-radius: 4px;
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font-family: var(--mono);
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font-weight: 600;
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font-size: 13px;
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cursor: pointer;
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}
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.controls button:hover { filter: brightness(1.1); }
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.controls button:disabled { opacity: 0.4; cursor: wait; }
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.controls .status {
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color: var(--dim);
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font-size: 12px;
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margin-left: auto;
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}
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.controls .status.busy { color: var(--warn); }
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.controls .status.err { color: var(--err); }
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.controls .status.ok { color: var(--accent); }
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.panes {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: 1px;
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background: var(--border);
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height: calc(100vh - 220px);
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min-height: 360px;
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}
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.pane {
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background: var(--pane);
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padding: 8px 12px;
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overflow: hidden;
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display: flex;
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flex-direction: column;
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}
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.pane h2 {
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margin: 0 0 8px;
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font-size: 11px;
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font-weight: 500;
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color: var(--dim);
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text-transform: uppercase;
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letter-spacing: 0.08em;
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}
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#editor {
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flex: 1;
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overflow: hidden;
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}
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.cm-editor { height: 100%; font-size: 13px; }
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.cm-editor.cm-focused { outline: none; }
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#output {
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flex: 1;
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white-space: pre;
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overflow: auto;
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background: #0a0c10;
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border: 1px solid var(--border);
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padding: 8px 10px;
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font-size: 13px;
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line-height: 1.35;
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border-radius: 2px;
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}
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#output .tier-block {
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margin-bottom: 14px;
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}
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#output .tier-block h3 {
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margin: 0 0 4px;
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font-size: 11px;
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color: var(--accent);
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text-transform: uppercase;
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letter-spacing: 0.08em;
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font-weight: 600;
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}
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#output .tier-block .time {
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color: var(--dim);
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font-size: 11px;
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font-weight: 400;
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}
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#output .tier-block pre {
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margin: 0;
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white-space: pre;
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}
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#output .err { color: var(--err); }
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footer {
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padding: 8px 24px;
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border-top: 1px solid var(--border);
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color: var(--dim);
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font-size: 11px;
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}
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footer code {
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color: var(--warn);
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}
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footer a {
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color: var(--accent);
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text-decoration: none;
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}
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