fix: typescript new version not support 'get' and 'set' accessors cannot declare this parameters

Author: hubcarl

app/extend/application.ts

@@ -3,7 +3,7 @@ import DB from '../lib/db/base';
 import DBFactory from '../lib/db/factory';
 const DBSymbol = Symbol('Application#db');
 export default {
-  get db(this: Application): DB {
+  get db(): DB {
     // if (!this[DBSymbol]) {
     //   this[DBSymbol] = DBFactory();
     // }

app/extend/context.ts

@@ -2,7 +2,7 @@
 import { Context } from 'egg';
 import DB from '../lib/db/base';
 export default {
-  get db(this: Context): DB {
-    return this.app.db;
+  get db(): DB {
+    return (this as Context).app.db;
   }
 };

package.json

@@ -18,6 +18,13 @@
   },
   "dependencies": {
     "@hubcarl/json-typescript-mapper": "2.0.0",
+    "axios": "^0.18.1",
+    "egg": "^2.3.0",
+    "egg-cors": "^2.1.1",
+    "egg-scripts": "^2.10.0",
+    "egg-view-vue-ssr": "^3.0.5",
+    "egg-webpack": "^4.4.7",
+    "egg-webpack-vue": "^2.0.0",
     "element-ui": "^2.0.8",
     "extend": "~3.0.0",
     "font-awesome": "^4.7.0",
@@ -29,19 +36,12 @@
     "shortid": "^2.2.8",
     "showdown": "^1.8.6",
     "simplemde": "^1.11.2",
-    "axios": "^0.18.1",
-    "egg": "^2.3.0",
-    "egg-scripts": "^2.10.0",
-    "egg-cors": "^2.1.1",
-    "egg-webpack": "^4.4.7",
-    "egg-webpack-vue": "^2.0.0",
-    "egg-view-vue-ssr": "^3.0.5",
     "vue": "^2.5.0",
+    "vue-property-decorator": "^7.2.0",
     "vue-router": "^3.0.1",
     "vuex": "^3.0.1",
-    "vuex-router-sync": "^5.0.0",
-    "vue-property-decorator": "^7.2.0",
-    "vuex-class": "^0.3.1"
+    "vuex-class": "^0.3.1",
+    "vuex-router-sync": "^5.0.0"
   },
   "devDependencies": {
     "@types/lodash": "^4.14.117",
@@ -59,7 +59,7 @@
     "ts-node": "^7.0.1",
     "tslint": "^5.9.1",
     "tslint-loader": "^3.5.3",
-    "typescript": "^3.0.0"
+    "typescript": "^3.9.2"
   },
   "egg": {
     "typescript": true

typings/app/controller/index.d.ts

@@ -1,4 +1,4 @@
-// This file is created by [email protected].6
+// This file is created by [email protected].8
 // Do not modify this file!!!!!!!!!
 
 import 'egg';

typings/app/extend/application.d.ts

@@ -1,4 +1,4 @@
-// This file is created by [email protected].6
+// This file is created by [email protected].8
 // Do not modify this file!!!!!!!!!
 
 import 'egg';

typings/app/extend/context.d.ts

@@ -1,4 +1,4 @@
-// This file is created by [email protected].6
+// This file is created by [email protected].8
 // Do not modify this file!!!!!!!!!
 
 import 'egg';

typings/app/index.d.ts

@@ -1,4 +1,4 @@
-// This file is created by [email protected].6
+// This file is created by [email protected].8
 // Do not modify this file!!!!!!!!!
 
 import 'egg';

typings/app/middleware/index.d.ts

@@ -1,4 +1,4 @@
-// This file is created by [email protected].6
+// This file is created by [email protected].8
 // Do not modify this file!!!!!!!!!
 
 import 'egg';

typings/app/model/index.d.ts

@@ -1,4 +1,4 @@
-// This file is created by [email protected].6
+// This file is created by [email protected].8
 // Do not modify this file!!!!!!!!!
 
 import 'egg';

typings/app/service/index.d.ts

@@ -1,11 +1,15 @@
-// This file is created by [email protected].6
+// This file is created by [email protected].8
 // Do not modify this file!!!!!!!!!
 
 import 'egg';
+type AnyClass = new (...args: any[]) => any;
+type AnyFunc<T = any> = (...args: any[]) => T;
+type CanExportFunc = AnyFunc<Promise<any>> | AnyFunc<IterableIterator<any>>;
+type AutoInstanceType<T, U = T extends CanExportFunc ? T : T extends AnyFunc ? ReturnType<T> : T> = U extends AnyClass ? InstanceType<U> : U;
 import ExportArticle from '../../../app/service/article';
 
 declare module 'egg' {
   interface IService {
-    article: ExportArticle;
+    article: AutoInstanceType<typeof ExportArticle>;
   }
 }