Initial support for getStaticProps (vercel/turbo#345)

Remaining questions:
* Should we have some static analysis for `getStaticProps` instead of looking into exports at runtime?
* For now, the output of `getStaticProps` (if defined) will always trump the value passed in as `data`. If we consider `data` to be the cached output of `getStaticProps` (in the future, as this is not yet implemented), this logic should be adapted.

packages/next-swc/crates/next-core/src/server_render/server_renderer.js

@@ -1,6 +1,6 @@
 const END_OF_OPERATION = process.argv[2]
 
-import Component from '.'
+import Component, * as otherExports from '.'
 import { renderToString, renderToStaticMarkup } from 'react-dom/server'
 ;('TURBOPACK { transition: next-client }')
 import chunkGroup from '.'
@@ -9,13 +9,13 @@ process.stdout.write('READY\n')
 
 const NEW_LINE = '\n'.charCodeAt(0)
 let buffer = []
-process.stdin.on('data', (data) => {
+process.stdin.on('data', async (data) => {
   let idx = data.indexOf(NEW_LINE)
   while (idx >= 0) {
     buffer.push(data.slice(0, idx))
     try {
       let json = JSON.parse(Buffer.concat(buffer).toString('utf-8'))
-      let result = operation(json)
+      let result = await operation(json)
       console.log(`RESULT=${JSON.stringify(result)}`)
     } catch (e) {
       console.log(`ERROR=${JSON.stringify(e.stack)}`)
@@ -27,9 +27,21 @@ process.stdin.on('data', (data) => {
   buffer.push(data)
 })
 
-function operation(data) {
+async function operation(data) {
+  let staticProps = data
+  if ('getStaticProps' in otherExports) {
+    // TODO(alexkirsz) Pass in `context` as defined in
+    // https://nextjs.org/docs/api-reference/data-fetching/get-static-props#context-parameter
+    staticProps = otherExports.getStaticProps({})
+    if ('then' in staticProps) {
+      staticProps = await staticProps
+    }
+  }
+
   // TODO capture meta info during rendering
-  const rendered = { __html: renderToString(<Component {...data.props} />) }
+  const rendered = {
+    __html: renderToString(<Component {...staticProps.props} />),
+  }
   const urls = chunkGroup.map((p) => `/${p}`)
   const scripts = urls.filter((url) => url.endsWith('.js'))
   const styles = urls.filter((url) => url.endsWith('.css'))
@@ -48,7 +60,7 @@ function operation(data) {
           id="__NEXT_DATA__"
           type="application/json"
           dangerouslySetInnerHTML={{
-            __html: htmlEscapeJsonString(JSON.stringify(data)),
+            __html: htmlEscapeJsonString(JSON.stringify(staticProps)),
           }}
         ></script>
         <div id="__next" dangerouslySetInnerHTML={rendered}></div>