From f9167c8fddbb757d314e1545c9dc788415a1fbf7 Mon Sep 17 00:00:00 2001
From: toasted-nutbread <toasted-nutbread@users.noreply.github.com>
Date: Sat, 26 Jun 2021 17:05:55 -0400
Subject: Template rendering updates (#1762)

* Remove unused function

* Update template rendering return value
---
 ext/js/data/anki-note-builder.js      | 7 ++-----
 ext/js/templates/template-renderer.js | 7 ++++++-
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/ext/js/data/anki-note-builder.js b/ext/js/data/anki-note-builder.js
index 85a68265..c36ad889 100644
--- a/ext/js/data/anki-note-builder.js
+++ b/ext/js/data/anki-note-builder.js
@@ -115,7 +115,8 @@ class AnkiNoteBuilder {
     async _formatField(field, commonData, template, errors=null) {
         return await this._stringReplaceAsync(field, this._markerPattern, async (g0, marker) => {
             try {
-                return await this._renderTemplateBatched(template, commonData, marker);
+                const {result} = await this._renderTemplateBatched(template, commonData, marker);
+                return result;
             } catch (e) {
                 if (Array.isArray(errors)) {
                     const error = new Error(`Template render error for {${marker}}`);
@@ -142,10 +143,6 @@ class AnkiNoteBuilder {
         return (await Promise.all(parts)).join('');
     }
 
-    async _renderTemplate(template, marker, commonData) {
-        return await this._templateRenderer.render(template, {marker, commonData}, 'ankiNote');
-    }
-
     _getBatchedTemplateGroup(template) {
         for (const item of this._batchedRequests) {
             if (item.template === template) {
diff --git a/ext/js/templates/template-renderer.js b/ext/js/templates/template-renderer.js
index 07b2849c..e27ad03c 100644
--- a/ext/js/templates/template-renderer.js
+++ b/ext/js/templates/template-renderer.js
@@ -28,6 +28,7 @@ class TemplateRenderer {
         this._helpersRegistered = false;
         this._stateStack = null;
         this._dataTypes = new Map();
+        this._requirements = null;
     }
 
     registerDataType(name, {modifier=null, composeData=null}) {
@@ -85,10 +86,14 @@ class TemplateRenderer {
 
     _renderTemplate(instance, data) {
         try {
+            const requirements = [];
             this._stateStack = [new Map()];
-            return instance(data).trim();
+            this._requirements = requirements;
+            const result = instance(data).trim();
+            return {result, requirements};
         } finally {
             this._stateStack = null;
+            this._requirements = null;
         }
     }
 
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