feat: renderFileToNodeStream(filepath, scope)

src/emitters/streamed-emitter.ts

@@ -1,11 +1,15 @@
 import { stringify } from '../util/underscore'
+import { Emitter } from './emitter'
 
-export class StreamedEmitter {
+export class StreamedEmitter implements Emitter {
   public buffer = '';
-  public stream = new (require('stream').PassThrough)()
+  public stream: NodeJS.ReadWriteStream = new (require('stream').PassThrough)()
   public write (html: any) {
     this.stream.write(stringify(html))
   }
+  public error (err: Error) {
+    this.stream.emit('error', err)
+  }
   public end () {
     this.stream.end()
   }