towards #30845

src/vs/platform/contextkey/browser/contextKeyService.ts

@@ -108,7 +108,8 @@ class ConfigAwareContextValuesContainer extends Context {
 				if (Object.prototype.hasOwnProperty.call(obj, key)) {
 					keys.push(key);
 					let value = obj[key];
-					if (typeof value === 'boolean') {
+					switch (typeof value) {
+						case 'boolean':
 							const configKey = keys.join('.');
 							const oldValue = this._value[configKey];
 							this._value[configKey] = value;
@@ -118,8 +119,10 @@ class ConfigAwareContextValuesContainer extends Context {
 							} else {
 								configKeys[configKey] = false;
 							}
-					} else if (typeof value === 'object') {
+							break;
+						case 'object':
 							walk(value, keys);
+							break;
 					}
 					keys.pop();
 				}