fix: remove flaky route treeshake cache

Author: katywings

.changeset/silent-laws-study.md

@@ -0,0 +1,5 @@
+---
+"@solidjs/start": patch
+---
+
+Fixed tailwind class changes not getting applied via HMR in filesystem routes.

packages/start/src/config/fs-routes/tree-shake.ts

@@ -281,7 +281,6 @@ function treeShakeTransform({ types: t }: typeof Babel): PluginObj<State> {
 
 export function treeShake(): Plugin {
   let config: ResolvedConfig;
-  const cache: Record<string, any> = {};
   let server: ViteDevServer;
 
   async function transform(id: string, code: string) {
@@ -314,40 +313,6 @@ export function treeShake(): Plugin {
     configureServer(s) {
       server = s;
     },
-    async handleHotUpdate(ctx) {
-      if (cache[ctx.file]) {
-        const mods = [];
-        const newCode = await ctx.read();
-        for (const [id, code] of Object.entries(cache[ctx.file])) {
-          const transformed = await transform(id, newCode);
-          if (!transformed) continue;
-
-          const { code: transformedCode } = transformed;
-
-          if (transformedCode !== code) {
-            const mod = server.moduleGraph.getModuleById(id);
-            if (mod) mods.push(mod);
-          }
-
-          cache[ctx.file] ??= {};
-          cache[ctx.file][id] = transformedCode;
-          // server.moduleGraph.setModuleSource(id, code);
-        }
-
-        return mods;
-      }
-      // 	const mods = [];
-      // 	[...server.moduleGraph.urlToModuleMap.entries()].forEach(([url, m]) => {
-      // 		if (m.file === ctx.file && m.id.includes("pick=")) {
-      // 			if (!m.id.includes("pick=loader")) {
-      // 				mods.push(m);
-      // 			}
-      // 		}
-      // 	});
-      // 	return mods;
-      // 	// this.router.updateRoute(ctx.path);
-      // }
-    },
     async transform(code, id) {
       const [path, queryString] = id.split("?");
       if (!path) return;
@@ -358,9 +323,6 @@ export function treeShake(): Plugin {
         const transformed = await transform(id, code);
         if (!transformed?.code) return;
 
-        cache[path] ??= {};
-        cache[path][id] = transformed.code;
-
         return {
           code: transformed.code,
           map: transformed.map,