feat(ssr): compiler-ssr support for Suspense

packages/server-renderer/src/helpers/ssrRenderSuspense.ts

@@ -0,0 +1,19 @@
+import { PushFn, ResolvedSSRBuffer, createBuffer } from '../renderToString'
+import { NOOP } from '@vue/shared'
+
+type ContentRenderFn = (push: PushFn) => void
+
+export async function ssrRenderSuspense({
+  default: renderContent = NOOP,
+  fallback: renderFallback = NOOP
+}: Record<string, ContentRenderFn | undefined>): Promise<ResolvedSSRBuffer> {
+  try {
+    const { push, getBuffer } = createBuffer()
+    renderContent(push)
+    return await getBuffer()
+  } catch {
+    const { push, getBuffer } = createBuffer()
+    renderFallback(push)
+    return getBuffer()
+  }
+}

packages/server-renderer/src/index.ts

@@ -14,6 +14,7 @@ export {
 export { ssrInterpolate } from './helpers/ssrInterpolate'
 export { ssrRenderList } from './helpers/ssrRenderList'
 export { ssrRenderPortal } from './helpers/ssrRenderPortal'
+export { ssrRenderSuspense } from './helpers/ssrRenderSuspense'
 
 // v-model helpers
 export {