adding changes to not pollute

gastonrobledo · Mar 19, 2022 · 4f3887a · 4f3887a
1 parent 1b57ca6
commit 4f3887a
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Showing 2 changed files with 37 additions and 31 deletions.
diff --git a/index.js b/index.js
@@ -1,40 +1,46 @@
 const { registerCoreHelpers } = require('./helpers')
 
-function asyncHelpers(handlebars) {
+function asyncHelpers(hbs) {
 
-  const _compile = handlebars.compile,
-        _template = handlebars.VM.template
+  const handlebars = hbs.create(),
+        asyncCompiler = class extends hbs.JavaScriptCompiler {
 
-  handlebars.JavaScriptCompiler = class extends handlebars.JavaScriptCompiler {
+          constructor() {
+            super()
+            this.compiler = asyncCompiler
+          }
 
-    mergeSource(varDeclarations) {
-      const sources = super.mergeSource(varDeclarations)
-      return sources.prepend('return (async () => {').add(' })()')
-    }
+          mergeSource(varDeclarations) {
+            const sources = super.mergeSource(varDeclarations)
+            return sources.prepend('return (async () => {').add(' })()')
+          }
 
-    appendToBuffer(source, location, explicit) {
-      // Force a source as this simplifies the merge logic.
-      if (!Array.isArray(source)) {
-        source = [source]
-      }
-      source = this.source.wrap(source, location)
-
-      if (this.environment.isSimple) {
-        return ['return await ', source, ';']
-      } if (explicit) {
-        // This is a case where the buffer operation occurs as a child of another
-        // construct, generally braces. We have to explicitly output these buffer
-        // operations to ensure that the emitted code goes in the correct location.
-        return ['buffer += await ', source, ';']
-      }
-      source.appendToBuffer = true
-      source.prepend('await ')
-      return source
+          appendToBuffer(source, location, explicit) {
+            // Force a source as this simplifies the merge logic.
+            if (!Array.isArray(source)) {
+              source = [source]
+            }
+            source = this.source.wrap(source, location)
 
-    }
+            if (this.environment.isSimple) {
+              return ['return await ', source, ';']
+            } if (explicit) {
+              // This is a case where the buffer operation occurs as a child of another
+              // construct, generally braces. We have to explicitly output these buffer
+              // operations to ensure that the emitted code goes in the correct location.
+              return ['buffer += await ', source, ';']
+            }
+            source.appendToBuffer = true
+            source.prepend('await ')
+            return source
 
-  }
+          }
+
+        }
+  handlebars.JavaScriptCompiler = asyncCompiler
 
+  const _compile = handlebars.compile,
+        _template = handlebars.VM.template
   handlebars.template = function(spec) {
     spec.main_d = (prog, props, container, depth, data, blockParams, depths) => async(context) => {
       // const main = await spec.main
@@ -59,4 +65,4 @@ function asyncHelpers(handlebars) {
   return handlebars
 }
 
-module.exports = asyncHelpers
+module.exports = asyncHelpers
diff --git a/test/test.js b/test/test.js
@@ -160,7 +160,7 @@ describe('Test async helpers', () => {
             extend: async function(partial, options) {
                 let context = this,
                     // noinspection JSUnresolvedVariable
-                    template = Handlebars.partials[partial] || options.data?.partials?.partial
+                    template = hbs.partials[partial] || options.data?.partials?.partial
 
                 // Partial template required
                 if (typeof template === 'undefined') {
@@ -171,7 +171,7 @@ describe('Test async helpers', () => {
                 await options.fn(context)
 
                 if (!(typeof template === 'function')) {
-                    template = Handlebars.compile(template)
+                    template = hbs.compile(template)
                 }
 
                 // Render final layout partial with revised blocks