Add quotation to object key if it start with '@'

src/languageservice/services/yamlCompletion.ts

@@ -1067,10 +1067,17 @@ const isNumberExp = /^\d+$/;
 function convertToStringValue(value: string): string {
   if (value === 'true' || value === 'false' || value === 'null' || isNumberExp.test(value)) {
     return `"${value}"`;
-  } else {
+  }
+
+  // eslint-disable-next-line prettier/prettier, no-useless-escape
+  if (value.indexOf('\"') !== -1) {
     value = value.replace(doubleQuotesEscapeRegExp, '"');
   }
 
+  if (value.length > 0 && value.charAt(0) === '@') {
+    value = `"${value}"`;
+  }
+
   return value;
 }
 // eslint-disable-next-line @typescript-eslint/no-explicit-any, @typescript-eslint/ban-types

test/autoCompletion.test.ts

@@ -706,6 +706,26 @@ describe('Auto Completion Tests', () => {
           })
           .then(done, done);
       });
+
+      it('Autocompletion should escape key if needed', async () => {
+        languageService.addSchema(SCHEMA_ID, {
+          type: 'object',
+          properties: {
+            '@type': {
+              type: 'string',
+              enum: ['foo'],
+            },
+          },
+        });
+        const content = '';
+        const completion = await parseSetup(content, 0);
+        expect(completion.items.length).to.be.equal(1);
+        expect(completion.items[0]).to.deep.equal(
+          createExpectedCompletion('@type', '"@type": ${1:foo}', 0, 0, 0, 0, 10, 2, {
+            documentation: '',
+          })
+        );
+      });
     });
 
     describe('Array Specific Tests', function () {