feat: adds the strict resolver as an option

README.md

@@ -36,26 +36,106 @@ export default class App extends Application {
 // ...snip...
 ```
 
+## Strict
+
+> **Note** This was originally developed as <https://github.com/stefanpenner/ember-strict-resolver>
+
+in app/resolver.js
+
+```js
+export { default } from "ember-resolver/strict";
+```
+
+## Migration
+
+Migrating to the `strict` resolver from the `classic` can be done piecemeal by supporting a sub-set of the old resolution formats.
+
+> **Note** `normalize` is needed because without it you will get errors related to failing to be able to inject services that were never normalized in the registry.
+
+```js
+// app/resolver.js
+
+import Resolver from "ember-resolver/strict";
+
+export default class extends Resolver {
+  legacyMappings = {
+    "service:camelCaseNotSupported": "service:camel-case-not-supported",
+  };
+
+  resolve(_fullName) {
+    return super.resolve(this.legacyMappings[_fullName] || _fullName);
+  }
+
+  normalize(_fullName) {
+    return this.legacyMappings[_fullName] || _fullName;
+  }
+}
+```
+
+This will allow you file PRs with libraries that currently do not support the strict resolver in its entirety.
+
+If you have a component that is failing to resolve correctly with the error `Attempted to lookup "helper:nameOfVariable". Use "helper:name-of-variable" instead.`, please convert your template to use explicit-this (also required by Ember v4.0). The template lint can be enabled by turning on [no-implicit-this](https://github.com/ember-template-lint/ember-template-lint/blob/master/docs/rule/no-implicit-this.md).
+
+An example of what this looks like is the following
+
+```hbs
+// addon/components/templates/foo.hbs
+
+<div>
+  {{fullName}}
+</div>
+```
+
+This will result in the error, `Attempted to lookup "helper:fullName". Use "helper:full-name" instead.`. The fix for this would be to decide if this is a argument being passed into foo or if this is a local property.
+
+_fullName_ is coming from an invocation of _Foo_ like the following:
+
+```
+<Foo
+  @fullName="The Teamster"
+/>
+```
+
+Then the fix for your template would be:
+
+```hbs
+// addon/components/templates/foo.hbs
+
+<div>
+  {{@fullName}}
+</div>
+```
+
+If _fullName_ is a property on your component the fix would be:
+
+```hbs
+// addon/components/templates/foo.hbs
+
+<div>
+  {{this.fullName}}
+</div>
+```
+
 ## Addon Development
 
 ### Installation
 
-* `git clone` this repository
-* `npm install`
-* `bower install`
+- `git clone` this repository
+- `npm install`
+- `bower install`
 
 ### Running
 
-* `ember server`
-* Visit your app at http://localhost:4200.
+- `ember server`
+- Visit your app at http://localhost:4200.
 
 ### Running Tests
 
-* `ember test`
-* `ember test --server`
+- `ember test`
+- `ember test --server`
 
 ### Building
 
-* `ember build`
+- `ember build`
 
 For more information on using ember-cli, visit [http://www.ember-cli.com/](http://www.ember-cli.com/).

addon/addon/resolvers/strict/index.js

@@ -0,0 +1,130 @@
+/* globals requirejs */
+
+import { warn } from '@ember/debug';
+import { dasherize } from '@ember/string';
+import { DEBUG } from '@glimmer/env';
+
+import require from 'require';
+
+export default class Resolver {
+  constructor(attrs) {
+    if (attrs) {
+      this.namespace = attrs.namespace;
+    }
+    // secret handshake with router to ensure substates are enabled
+    // see https://github.com/emberjs/ember.js/blob/a429dc327ee6ef97d948a83e727886c75c6fe043/packages/%40ember/-internals/routing/lib/system/router.ts#L344
+    this.moduleBasedResolver = true;
+  }
+
+  static create(args) {
+    return new this(args);
+  }
+
+  has(moduleName) {
+    return moduleName in (requirejs.entries || requirejs._eak_seen);
+  }
+
+  parseFullName(fullName) {
+    let prefix, type, name;
+
+    let fullNameParts = fullName.split('@');
+
+    if (fullNameParts.length === 3) {
+      if (fullNameParts[0].length === 0) {
+        // leading scoped namespace: `@scope/pkg@type:name`
+        prefix = `@${fullNameParts[1]}`;
+        let prefixParts = fullNameParts[2].split(':');
+        type = prefixParts[0];
+        name = prefixParts[1];
+      } else {
+        // interweaved scoped namespace: `type:@scope/pkg@name`
+        prefix = `@${fullNameParts[1]}`;
+        type = fullNameParts[0].slice(0, -1);
+        name = fullNameParts[2];
+      }
+
+      if (type === 'template:components') {
+        name = `components/${name}`;
+        type = 'template';
+      }
+    } else if (fullNameParts.length === 2) {
+      let prefixParts = fullNameParts[0].split(':');
+
+      if (prefixParts.length === 2) {
+        if (prefixParts[1].length === 0) {
+          type = prefixParts[0];
+          name = `@${fullNameParts[1]}`;
+        } else {
+          prefix = prefixParts[1];
+          type = prefixParts[0];
+          name = fullNameParts[1];
+        }
+      } else {
+        let nameParts = fullNameParts[1].split(':');
+
+        prefix = fullNameParts[0];
+        type = nameParts[0];
+        name = nameParts[1];
+      }
+
+      if (type === 'template' && prefix.lastIndexOf('components/', 0) === 0) {
+        name = `components/${name}`;
+        prefix = prefix.slice(11);
+      }
+    } else {
+      fullNameParts = fullName.split(':');
+
+      prefix = this.namespace.modulePrefix;
+      type = fullNameParts[0];
+      name = fullNameParts[1];
+    }
+
+    return {
+      prefix,
+      type,
+      name
+    }
+  }
+
+  moduleNameForFullName(fullName) {
+    let moduleName;
+
+    const { prefix, type, name } = this.parseFullName(fullName);
+
+    if (name === 'main') {
+      moduleName = `${prefix}/${type}`;
+    } else if (type === 'engine') {
+      moduleName = `${name}/engine`;
+    } else if (type === 'route-map') {
+      moduleName = `${name}/routes`;
+    } else if (type === 'config') {
+      moduleName = `${prefix}/${type}/${name.replace(/\./g, '/')}`;
+    } else {
+      moduleName = `${prefix}/${type}s/${name.replace(/\./g, '/')}`;
+    }
+
+    return moduleName;
+  }
+
+  resolve(fullName) {
+    const moduleName = this.moduleNameForFullName(fullName);
+
+    if (this.has(moduleName)) {
+      // hit
+      return require(moduleName)['default'];
+    }
+    // miss
+  }
+
+  normalize(fullName) {
+    if(DEBUG) {
+      const { type } = this.parseFullName(fullName);
+
+      if(['service'].includes(type)) {
+        warn(`Attempted to lookup "${fullName}". Use "${dasherize(fullName)}" instead.`, !fullName.match(/[a-z]+[A-Z]+/), { id: 'ember-strict-resolver.camelcase-names' });
+      }
+    }
+
+    return fullName;
+  }
+}