Avoid triggering ember.js#19392 with synthetic attr nodes

CHANGELOG.md

@@ -6,6 +6,11 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
 ## Unreleased
 
+## 2.0.1 (March 23, 2022)
+
+### Fixed
+- Avoid triggering (ember.js#19392)[https://github.com/emberjs/ember.js/issues/19392] when we produce synthetic class `AttrNode`s.
+
 ## 2.0.0 (November 22, 2021)
 
 This major release of Ember CSS Modules primarily removes support for deprecated patterns and updates our minimum support for other elements of the ecosystem.

packages/ember-css-modules/lib/htmlbars-plugin/index.js

@@ -142,9 +142,18 @@ module.exports = class ClassTransformPlugin {
 
     utils.pushAll(parts, this.localToPath(localClassAttr.value));
     this.divide(parts, 'text');
-    node.attributes.unshift(
-      this.builders.attr('class', this.builders.concat(parts))
-    );
+
+    let newClassAttr = this.builders.attr('class', this.builders.concat(parts));
+    node.attributes.unshift(newClassAttr);
+
+    // In new-enough versions of Ember (>= 3.25 or so), we need to create a
+    // fake good-enough `loc` whose content will start with `class=` to avoid
+    // triggering https://github.com/emberjs/ember.js/issues/19392
+    if (typeof localClassAttr.loc.slice === 'function') {
+      newClassAttr.loc = localClassAttr.loc.slice({
+        skipStart: 'local-'.length,
+      });
+    }
   }
 
   localToPath(node) {

packages/ember-css-modules/package.json

@@ -1,6 +1,6 @@
 {
   "name": "ember-css-modules",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "CSS Modules for ambitious applications",
   "scripts": {
     "build": "ember build --environment=production",