Working on lexically-captured this support

Author: ef4

__tests__/tests.ts

@@ -1871,6 +1871,17 @@ describe('htmlbars-inline-precompile', function () {
       `);
       expect(spy.firstCall.lastArg).toHaveProperty('locals', ['bar']);
     });
+
+    it('can pass lexically scoped "this"', function () {
+      let spy = sinon.spy(compiler, 'precompile');
+      transform(`
+        import { precompileTemplate } from '@ember/template-compilation';
+        export function example() {
+          return precompileTemplate('{{this.message}}', { scope: () => ({ "this": this }) });
+        }
+      `);
+      expect(spy.firstCall.lastArg).toHaveProperty('locals', ['this']);
+    });
   });
 
   describe('implicit-scope-form', function () {

pnpm-lock.yaml

@@ -101,13 +101,18 @@ export class ExpressionParser {
 
         let propName = name(key);
 
-        if (value.type !== 'Identifier') {
-          throw path.buildCodeFrameError(
-            `Scope objects for \`${invokedName}\` may only contain direct references to in-scope values, e.g. { ${propName} } or { ${propName}: ${propName} }`
-          );
+        switch (value.type) {
+          case 'Identifier':
+            res.add(propName, value.name);
+            break;
+          case 'ThisExpression':
+            res.add(propName, 'this');
+            break;
+          default:
+            throw path.buildCodeFrameError(
+              `Scope objects for \`${invokedName}\` may only contain direct references to in-scope values, e.g. { ${propName} } or { ${propName}: ${propName} }. Found ${value.type}`
+            );
         }
-
-        res.add(propName, value.name);
         return res;
       },
       new ScopeLocals({ mode: 'explicit' })