fix: use legacy syntax for decorators

.travis.yml

@@ -3,7 +3,7 @@ language: node_js
 node_js:
   # we recommend testing addons with the same minimum supported node version as Ember CLI
   # so that your addon works for all apps
-  - '6'
+  - '8'
 
 sudo: false
 dist: trusty

addon/decorators/query-param.js

@@ -4,54 +4,34 @@ import {
   addQueryParamFor,
   getQueryParamsFor
 } from './-private/query-params-for';
+import { decoratorWithParams } from '@ember-decorators/utils/decorator';
 
-function createDescriptor(desc, qpDefinition) {
-  qpDefinition = qpDefinition || {};
+export const queryParam = decoratorWithParams((target, key, desc, params) => {
+  const qpDefinition = params ? params[0] : {};
 
-  const descriptor = {
-    ...desc,
-    finisher(klass) {
-      addQueryParamFor(klass, desc.key, qpDefinition);
-      klass.reopen(getQueryParamsFor(klass).Mixin);
-
-      const proto = klass.proto();
-
-      // Remove duplicate queryParams created by the multiple mixins
-      if (Array.isArray(proto.queryParams)) {
-        const queryParams = A([...proto.queryParams]);
-        const parachuteQueryParams = queryParams.filterBy(PARACHUTE_QPS, true);
-
-        // Keep the newest one
-        parachuteQueryParams.pop();
-        // Remove the old ones
-        queryParams.removeObjects(parachuteQueryParams);
-
-        proto.queryParams = queryParams.toArray();
-      }
+  if (typeof desc.initializer === 'function') {
+    qpDefinition.defaultValue = desc.initializer();
+  }
 
-      return klass;
-    }
+  desc.initializer = function initializer() {
+    return qpDefinition.defaultValue;
   };
 
-  if (desc.kind === 'field') {
-    if (typeof desc.initializer === 'function') {
-      qpDefinition.defaultValue = desc.initializer();
-    }
+  addQueryParamFor(target, key, qpDefinition);
+  target.reopen(getQueryParamsFor(target).Mixin);
 
-    descriptor.initializer = function initializer() {
-      return qpDefinition.defaultValue;
-    };
-  }
+  // Remove duplicate queryParams created by the multiple mixins
+  if (Array.isArray(target.queryParams)) {
+    const queryParams = A([...target.queryParams]);
+    const parachuteQueryParams = queryParams.filterBy(PARACHUTE_QPS, true);
 
-  return descriptor;
-}
+    // Keep the newest one
+    parachuteQueryParams.pop();
+    // Remove the old ones
+    queryParams.removeObjects(parachuteQueryParams);
 
-export default function queryParam(qpDefinition) {
-  // Handle `@queryParam` usage
-  if (`${qpDefinition}` === '[object Descriptor]') {
-    return createDescriptor(qpDefinition);
+    target.queryParams = queryParams.toArray();
   }
+});
 
-  // Handle `@queryParam()` usage
-  return desc => createDescriptor(desc, qpDefinition);
-}
+export default queryParam;

addon/decorators/with-parachute.js

@@ -1,12 +1,10 @@
 import QueryParams from '../query-params';
+import { decoratorWithParams } from '@ember-decorators/utils/decorator';
 
-export default function withParachute(desc) {
-  return {
-    ...desc,
-    finisher(klass) {
-      klass.reopen(new QueryParams().Mixin);
+export const withParachute = decoratorWithParams(target => {
+  target.reopen(new QueryParams().Mixin);
 
-      return klass;
-    }
-  };
-}
+  return target;
+});
+
+export default withParachute;

package.json

@@ -29,10 +29,10 @@
     "test:all": "ember try:each"
   },
   "dependencies": {
-    "ember-cli-babel": "^7.1.2"
+    "@ember-decorators/utils": "^6.1.1",
+    "ember-cli-babel": "^7.12.0"
   },
   "devDependencies": {
-    "@ember-decorators/babel-transforms": "^4.0.0",
     "@ember/jquery": "^0.5.2",
     "@ember/optional-features": "^0.6.3",
     "babel-eslint": "^10.0.1",
@@ -55,7 +55,7 @@
     "ember-composable-helpers": "^2.1.0",
     "ember-concurrency": "^0.8.26",
     "ember-concurrency-decorators": "^0.5.0",
-    "ember-decorators": "^4.0.0",
+    "ember-decorators": "^6.1.1",
     "ember-disable-prototype-extensions": "^1.1.3",
     "ember-export-application-global": "^2.0.0",
     "ember-load-initializers": "^2.0.0",
@@ -75,7 +75,7 @@
     "sass": "^1.15.3"
   },
   "engines": {
-    "node": "6.* || 8.* || >= 10.*"
+    "node": "8.* || >= 10.*"
   },
   "ember-addon": {
     "configPath": "tests/dummy/config",