Add js web stuff to landing page + documentation

go/jsbundler/jsx_dev_test.go

@@ -0,0 +1,48 @@
+package jsbundler
+
+import (
+	"strings"
+	"testing"
+)
+
+// CompileDev should Solid-compile the component AND wrap it with solid-refresh
+// HMR instrumentation: an import from the solid-refresh runtime, a registry hot
+// boundary, and an import.meta.hot accept (bundler:"esm"). None of these appear
+// in the plain (prod) Compile output.
+func TestCompileDevSolidRefresh(t *testing.T) {
+	src := `import { createSignal } from "solid-js";
+export default function Counter() {
+    const [c, setC] = createSignal(0);
+    return <button onclick={() => setC(c() + 1)}>Count: {c()}</button>;
+}
+`
+	dev, err := CompileDev(src, "ui/Counter.tsx")
+	if err != nil {
+		t.Fatalf("CompileDev: %v", err)
+	}
+	t.Logf("DEV OUTPUT:\n%s", dev)
+
+	for _, want := range []string{
+		`solid-refresh`,   // runtime import
+		"$$registry",      // HMR registry boundary
+		"import.meta.hot", // esm bundler hot API
+		"_tmpl$",          // still Solid-compiled
+	} {
+		if !strings.Contains(dev, want) {
+			t.Errorf("dev output missing %q", want)
+		}
+	}
+
+	// Prod compile of the same source must NOT carry refresh instrumentation,
+	// and (regression for the mode-keyed cache) must differ from the dev output.
+	prod, err := Compile(src, "ui/Counter.tsx")
+	if err != nil {
+		t.Fatalf("Compile: %v", err)
+	}
+	if strings.Contains(prod, "solid-refresh") || strings.Contains(prod, "import.meta.hot") {
+		t.Errorf("prod output leaked HMR instrumentation:\n%s", prod)
+	}
+	if prod == dev {
+		t.Errorf("mode-keyed cache broken: dev and prod output identical")
+	}
+}