From 7522618ac3e913b904ada9d2e2529afa7acabad3 Mon Sep 17 00:00:00 2001
From: Brian Cully <bjc@spork.org>
Date: Thu, 18 Dec 2025 15:10:08 -0500
Subject: rust, js: do plain old object translation is wasm. use workers

---
 site/main.mjs | 29 ++++++++++++++---------------
 site/robo.mjs | 59 ++++++++++++++++++-----------------------------------------
 2 files changed, 32 insertions(+), 56 deletions(-)

(limited to 'site')

diff --git a/site/main.mjs b/site/main.mjs
index 5358616..31f1375 100644
--- a/site/main.mjs
+++ b/site/main.mjs
@@ -167,38 +167,37 @@ async function loaded() {
         speedy: 0,
     };
     roboWorker.onmessage = e => {
-        const { kind, res, vm } = e.data;
+        const { kind, res, trans } = e.data;
         switch (kind) {
         case 'compile':
             if (res) {
                 let wordlistContainer = document.querySelector(WORDLIST_SELECTOR);
-                console.debug('bjc new vm', vm);
-                const wordlist = wordlistElts(vm.wordlist);
+                const wordlist = wordlistElts(trans.wordlist);
                 wordlist.forEach(elt => wordlistContainer.appendChild(elt));
                 initWordlist();
-                renderStack(vm.stack);
-                renderCallStack(vm.callstack);
-                renderVars(vm.vars);
-                renderTextHighlight(vm);
+                renderStack(trans.stack);
+                renderCallStack(trans.callstack);
+                renderVars(trans.vars);
+                renderTextHighlight(trans);
 
                 renderArena([robo]);
             }
             break;
         case 'tick':
-            const { word, offset } = vm.ip;
+            const { word, offset } = trans.ip;
             document.querySelectorAll(IP_SELECTOR).forEach(e => e.classList.remove('ip'));
             const sel = selectorForIP(word, offset);
             document.querySelectorAll(sel).forEach(e => {
                 e.classList.add('ip');
             });
-            renderStack(vm.stack);
-            renderCallStack(vm.callstack);
-            renderVars(vm.vars);
-            renderTextHighlight(vm);
+            renderStack(trans.stack);
+            renderCallStack(trans.callstack);
+            renderVars(trans.vars);
+            renderTextHighlight(trans);
 
             robo.lastTick = document.timeline.currentTime;
-            robo.heading = vm.vars.heading;
-            robo.speed = vm.vars.speed;
+            robo.heading = trans.vars.heading;
+            robo.speed = trans.vars.speed;
             const [speedx, speedy] = [
                 Math.cos(2 * Math.PI * robo.heading / 360),
                 Math.sin(2 * Math.PI * robo.heading / 360)
@@ -217,7 +216,7 @@ async function loaded() {
         console.error('error in roboWorker', e);
     };
 
-    document.querySelectorAll(SRC_SELECT_SELECTOR).forEach(async sel => {
+    document.querySelectorAll(SRC_SELECT_SELECTOR).forEach(sel => {
         sel.onchange = _ => loadForth(sel.value);
         loadForth(sel.value);
     });
diff --git a/site/robo.mjs b/site/robo.mjs
index e6db244..1b7c3d8 100644
--- a/site/robo.mjs
+++ b/site/robo.mjs
@@ -2,59 +2,22 @@ import init, { make_vm } from './wasm/automathon.js';
 
 let vm;
 
-function vmData(vm) {
-    const wordlist = vm.wordlist().map(bc => {
-        let res = [];
-        for (let i = 0; i < bc.len(); i++) {
-            res.push(bc.at(i))
-        }
-        return res;
-    });
-    const callstack = vm.callstack().map(e => { return { word: e.word, offset: e.offset }; });
-    const vars = Object.fromEntries(['out', 'heading', 'speed', 'doppler'].map(name => [name, vm[name]()]));
-    const ip = {word: vm.ip().word, offset: vm.ip().offset};
-    const annos = vm.annotations().map(word_annos => {
-        let res = [];
-        for (let i = 0; i < word_annos.len(); i++) {
-            const anno = word_annos.at(i);
-            res.push({ start: anno.start, end: anno.end })
-        }
-        return res;
-    });
-    return {
-        wordlist,
-        stack: vm.stack(),
-        callstack,
-        vars,
-        ip,
-        annos,
-    }
-}
-
 function compile(text) {
     const start = performance.now();
     const res = vm.compile(text);
     const end = performance.now();
     console.info(`compile took ${end-start} ms`);
-    postMessage({ kind: 'compile', res, vm: vmData(vm) });
+    postMessage({ kind: 'compile', res, trans: vm.trans() });
 }
 
 function tick() {
     if (!vm.tick()) {
         vm.reset_ip();
     }
-    postMessage({ kind: 'tick', vm: vmData(vm) });
+    postMessage({ kind: 'tick', trans: vm.trans() });
 }
 
-let mod;
 async function messageHandler(e) {
-    if (mod === undefined) {
-        console.debug('worker running init');
-        mod = await init();
-        console.debug('worker init done');
-        vm = make_vm();
-        console.debug('worker vm made');
-    }
     const { kind } = e.data;
     switch (kind) {
     case 'compile':
@@ -69,5 +32,19 @@ async function messageHandler(e) {
     }
 }
 
-console.debug('loading robo worker');
-addEventListener('message', messageHandler);
+let mod;
+async function loaded() {
+    console.debug('loading robo worker');
+    if (mod === undefined) {
+        console.debug('worker running init');
+        mod = await init();
+        console.debug('worker init done');
+        vm = make_vm();
+        console.debug('worker vm made');
+    }
+
+    addEventListener('message', messageHandler);
+    console.debug('bjc loaded robo');
+}
+
+loaded();
-- 
cgit v1.3