fix(compiler): render server loader attributes without client state

bun.lock

@@ -320,7 +320,7 @@
     },
     "packages/compiler": {
       "name": "@wrnexus/compiler",
-      "version": "0.8.22",
+      "version": "0.8.23",
       "dependencies": {
         "@wrnexus/csr": "workspace:*",
         "@wrnexus/store": "workspace:*",

packages/compiler/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@wrnexus/compiler",
-  "version": "0.8.22",
+  "version": "0.8.23",
   "type": "module",
   "main": "src/index.ts",
   "exports": {

packages/compiler/src/codegen.ts

@@ -344,10 +344,16 @@ function renderAttrs(
         exprRefsState(expression, reactive.runtimeStateNames) &&
         dynamicExpressions
       ) {
+        const marker = exprRefsState(expression, reactive.stateNames)
+          ? ` data-wrn-bind-${bindIndex++}="${attrEscape(JSON.stringify([attr.name, attr.value]))}"`
+          : "";
+        if (isHtmlBooleanAttribute(attr.name)) {
+          dynamicExpressions.push(`\${(${expression}) ? ${JSON.stringify(` ${attr.name}`)} : ""}`);
+          return `\x00WRNEACH${dynamicExpressions.length - 1}\x00${marker}`;
+        }
         dynamicExpressions.push(`\${__wrnexusPropAttr(${expression})}`);
         const sentinel = `\x00WRNEACH${dynamicExpressions.length - 1}\x00`;
-        const marker = JSON.stringify([attr.name, attr.value]);
-        return ` ${attr.name}="${sentinel}" data-wrn-bind-${bindIndex++}="${attrEscape(marker)}"`;
+        return ` ${attr.name}="${sentinel}"${marker}`;
       }
       const initial = reactiveAttrValue(attr.value, reactive);
       if (initial === null) return base;
@@ -1603,7 +1609,7 @@ function generateInner(ast: PageAst): string {
   ];
   const runtimeStateNames = runtimeComputedNames(orderedStates, orderedComputed, runtimeRoots);
   const reactive: PageReactive | null =
-    reactiveNames.length > 0
+    reactiveNames.length > 0 || runtimeStateNames.size > 0
       ? { stateNames: new Set(reactiveNames), runtimeStateNames, scope: seedScope }
       : null;
   const loops: string[] = [];

packages/compiler/test/server-load-attributes.test.ts

@@ -0,0 +1,29 @@
+import { expect, test } from "bun:test";
+import { generate, parse } from "../src/index.ts";
+
+test("server-only loader data renders native input attributes without client state", async () => {
+  const code = generate(
+    parse(`page Profile {
+    load server account { return {} }
+    view {
+      <input value="{account.name}" readonly="{account.readonly}" />
+      <select><option value="light" selected="{account.theme === 'light'}">Light</option><option value="dark" selected="{account.theme === 'dark'}">Dark</option></select>
+      <div data-component="ProfileShell" identity="{account.identity}"></div>
+    }
+  }`),
+  );
+  const javascript = new Bun.Transpiler({ loader: "ts" }).transformSync(code);
+  const page = await import(
+    `data:text/javascript;base64,${Buffer.from(javascript).toString("base64")}`
+  );
+  const html = await page.default({
+    account: { name: 'A "<User>"', readonly: false, theme: "dark", identity: { name: "Alice" } },
+  });
+  expect(html).toContain('value="A &quot;&lt;User&gt;&quot;"');
+  expect(html).not.toContain(" readonly");
+  expect(html).toContain('<option value="light">Light</option>');
+  expect(html).toContain('<option value="dark" selected>Dark</option>');
+  expect(html).toContain('identity="{&quot;name&quot;:&quot;Alice&quot;}"');
+  expect(html).not.toContain("data-wrn-bind");
+  expect(html).not.toContain("{account.");
+});