fix: break/continue omitting output before them, #123

BREAKING CHANGE: remove default export, now should be used like import
{Liquid} from 'liquidjs'

src/render/render.ts

@@ -1,22 +1,15 @@
 import { RenderError } from '../util/error'
-import assert from '../util/assert'
-import Context from '../context/context'
-import ITemplate from '../template/itemplate'
+import { Context } from '../context/context'
+import { ITemplate } from '../template/itemplate'
 import { Emitter } from './emitter'
 
-export default class Render {
-  public async renderTemplates (templates: ITemplate[], ctx: Context) {
-    assert(ctx, 'unable to evalTemplates: context undefined')
-
-    const emitter = new Emitter()
+export class Render {
+  public async renderTemplates (templates: ITemplate[], ctx: Context, emitter = new Emitter()) {
     for (const tpl of templates) {
       try {
-        emitter.write(await tpl.render(ctx, emitter))
+        await tpl.render(ctx, emitter)
       } catch (e) {
-        if (e.name === 'RenderBreakError') {
-          e.resolvedHTML = emitter.html
-          throw e
-        }
+        if (e.name === 'RenderBreakError') throw e
         throw e.name === 'RenderError' ? e : new RenderError(e, tpl)
       }
     }