Sync with ember-template-lint

Author: NullVoxPopuli

docs/rules/template-no-this-in-template-only-components.md

@@ -4,30 +4,20 @@
 
 <!-- end auto-generated rule header -->
 
-There is no `this` context in template-tag (`<template>`) components that don't extend a class.
-
-## Rule Details
-
-In gjs/gts files with `<template>` tags, this rule flags all `this.*` path expressions and suggests converting them to named arguments (`@*`). The auto-fix replaces `this.foo` with `@foo` (except for built-in component properties like `elementId`, `tagName`, `ariaRole`, `class`, `classNames`, `classNameBindings`, `attributeBindings`, and `isVisible`, which are reported but not auto-fixed).
+There is no `this` context in template-only components.
 
 ## Examples
 
-This rule **forbids** the following:
-
-```gjs
-<template><h1>Hello {{this.name}}!</h1></template>
-```
-
-This rule **allows** the following:
+This rule **forbids** `this` in template-only components:
 
-```gjs
-<template><h1>Hello {{@name}}!</h1></template>
+```hbs
+<h1>Hello {{this.name}}!</h1>
 ```
 
 The `--fix` option will convert to named arguments:
 
-```gjs
-<template><h1>Hello {{@name}}!</h1></template>
+```hbs
+<h1>Hello {{@name}}!</h1>
 ```
 
 ## Migration

lib/rules/template-no-this-in-template-only-components.js

@@ -49,8 +49,7 @@ module.exports = {
           ? sourceCode.getAncestors(node)
           : context.getAncestors();
         const isInsideClass = ancestors.some(
-          (ancestor) =>
-            ancestor.type === 'ClassBody' || ancestor.type === 'ClassDeclaration'
+          (ancestor) => ancestor.type === 'ClassBody' || ancestor.type === 'ClassDeclaration'
         );
         if (isInsideClass) {
           return;

tests/lib/rules/template-no-this-in-template-only-components.js

@@ -62,6 +62,16 @@ hbsRuleTester.run('template-no-this-in-template-only-components', rule, {
     '{{my-component model=model}}',
   ],
   invalid: [
+    {
+      code: '{{my-component model=this.model}}',
+      output: '{{my-component model=@model}}',
+      errors: [
+        {
+          message:
+            "Usage of 'this' in path 'this.model' is not allowed in a template-only component. Use '@model' if it is a named argument.",
+        },
+      ],
+    },
     {
       code: '{{my-component action=(action this.myAction)}}',
       output: '{{my-component action=(action @myAction)}}',