release: WRNexusJS 0.2.39

packages/compiler/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@wrnexus/compiler",
-  "version": "0.2.38",
+  "version": "0.2.39",
   "type": "module",
   "main": "src/index.ts",
   "exports": {

packages/compiler/src/codegen.ts

@@ -1232,6 +1232,11 @@ function generateComponent(ast: PageAst): string {
   };
   const ctx: CompCtx = { stateNames, resolveExpr };
 
+  const serverFunctions = ast.functions
+    .map((body) => body.trim())
+    .filter(Boolean)
+    .join("\n\n");
+
   const viewCode = ast.view.map((node) => renderComponentNode(node, ctx)).join("");
   const styles = ast.styles.map((body) => body.trim()).filter(Boolean);
   const styleTag =
@@ -1262,7 +1267,7 @@ function generateComponent(ast: PageAst): string {
     );
   }
   for (const state of ast.states) {
-    decls.push(`  const ${nameRefs.get(state.name)} = (${resolveExpr(state.expr)});`);
+    decls.push(`  let ${nameRefs.get(state.name)} = (${resolveExpr(state.expr)});`);
   }
 
   const returnExpr = needsScope
@@ -1402,10 +1407,13 @@ function __wireRaw(v: any): string {
 }`);
   }
 
+  const serverFunctionSource = serverFunctions ? `${serverFunctions}\n` : "";
+
   out.push(
     `export function render(props: Record<string, any> = {}): string {\n` +
       `  const __p = props || {};\n` +
       (decls.length > 0 ? decls.join("\n") + "\n" : "") +
+      serverFunctionSource +
       scopeLine +
       `  return ${returnExpr};\n` +
       `}`,

packages/compiler/test/compiler.test.ts

@@ -783,3 +783,58 @@ page Home {
 
   expect(output).toContain("__wrnexusPropAttr([");
 });
+test("component functions are available during server rendering", () => {
+  const output = generate(
+    parse(`
+component FAQAccordion {
+  props {
+    allowMultiple = false
+    items = []
+  }
+
+  state openIndexes = []
+
+  functions {
+    function isOpen(index) {
+      return openIndexes.includes(index)
+    }
+
+    function toggleItem(index) {
+      if (isOpen(index)) {
+        openIndexes = openIndexes.filter(
+          (itemIndex) =>
+            itemIndex !== index
+        )
+      } else if (allowMultiple) {
+        openIndexes = [
+          ...openIndexes,
+          index
+        ]
+      } else {
+        openIndexes = [index]
+      }
+    }
+  }
+
+  view {
+    {#each items as item, index}
+      <button
+        class:hidden="!isOpen(index)"
+        @click="toggleItem(index)"
+      >
+        {item.title}
+      </button>
+    {/each}
+  }
+}
+`),
+  );
+
+  expect(output).toContain("function isOpen(index)");
+
+  expect(output).toContain("function toggleItem(index)");
+
+  expect(output).toContain("let openIndexes =");
+
+  expect(output).toContain("isOpen(index)");
+});