From 52ae070abaa88eacdfb866e9e282d7e9e0fa168e Mon Sep 17 00:00:00 2001
From: NullVoxPopuli <199018+NullVoxPopuli@users.noreply.github.com>
Date: Sun, 29 Mar 2026 00:13:44 -0400
Subject: [PATCH] Handle missing absolutePaths for ember-source v7+

ember-source v7 no longer exports `absolutePaths` from its addon entry
point. Fall back to resolving the template compiler through the package
exports map when `absolutePaths` is absent.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---
 lib/ember-addon-main.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/lib/ember-addon-main.js b/lib/ember-addon-main.js
index 71c809a1..dd0ddb60 100644
--- a/lib/ember-addon-main.js
+++ b/lib/ember-addon-main.js
@@ -105,7 +105,17 @@ module.exports = {
       );
     }
 
-    return ember.absolutePaths.templateCompiler;
+    if (ember.absolutePaths) {
+      return ember.absolutePaths.templateCompiler;
+    }
+
+    // v7+ ember-source no longer provides absolutePaths; resolve from
+    // the host app's directory through the package exports map
+    let { createRequire } = require('module');
+    let appRequire = createRequire(
+      path.join(this.project.root, 'package.json'),
+    );
+    return appRequire.resolve('ember-source/ember-template-compiler/index.js');
   },
 
   astPlugins() {