From eff0aefa398e578abffe91b074f70bbc55535a6d Mon Sep 17 00:00:00 2001
From: Thomas Wang <wangxgwxg@gmail.com>
Date: Mon, 9 Nov 2020 17:10:54 -0800
Subject: [PATCH] Improve internal router type

---
 .../-internals/routing/lib/system/dsl.ts      | 23 +++++++++++--------
 .../-internals/routing/lib/system/engines.ts  |  2 +-
 .../-internals/routing/lib/system/route.ts    |  7 ++++--
 3 files changed, 20 insertions(+), 12 deletions(-)

diff --git a/packages/@ember/-internals/routing/lib/system/dsl.ts b/packages/@ember/-internals/routing/lib/system/dsl.ts
index 10c0e3eb677..91366ef8aef 100644
--- a/packages/@ember/-internals/routing/lib/system/dsl.ts
+++ b/packages/@ember/-internals/routing/lib/system/dsl.ts
@@ -10,7 +10,7 @@ let uuid = 0;
 export interface RouteOptions {
   path?: string;
   resetNamespace?: boolean;
-  serialize?: any;
+  serialize?: (model: {}, params: string[]) => { [key: string]: unknown | undefined };
   overrideNameAssertion?: boolean;
 }
 
@@ -43,16 +43,14 @@ function isOptions(value?: RouteOptions | DSLCallback): value is RouteOptions {
 }
 export interface DSLImplOptions {
   enableLoadingSubstates: boolean;
-  overrideNameAssertion?: boolean;
   engineInfo?: EngineInfo;
   addRouteForEngine(name: string, routeOptions: EngineRouteInfo): void;
   resolveRouteMap(name: string): Factory<any, any>;
-  path?: string;
 }
 
 export default class DSLImpl implements DSL {
   parent: string | null;
-  matches: any[];
+  matches: Array<Object | undefined>;
   enableLoadingSubstates: boolean;
   explicitIndex = false;
   options: DSLImplOptions;
@@ -69,7 +67,7 @@ export default class DSLImpl implements DSL {
   route(name: string, callback: DSLCallback): void;
   route(name: string, options: RouteOptions): void;
   route(name: string, options: RouteOptions, callback: DSLCallback): void;
-  route(name: string, _options?: RouteOptions | DSLCallback, _callback?: DSLCallback) {
+  route(name: string, _options?: RouteOptions | DSLCallback, _callback?: DSLCallback): void {
     let options: RouteOptions;
     let callback: Option<DSLCallback> = null;
 
@@ -127,9 +125,13 @@ export default class DSLImpl implements DSL {
       createRoute(this, name, options);
     }
   }
-  /* eslint-enable no-dupe-class-members */
 
-  push(url: string, name: string, callback?: MatchCallback, serialize?: any) {
+  push(
+    url: string,
+    name: string,
+    callback?: MatchCallback,
+    serialize?: (model: {}, params: string[]) => { [key: string]: unknown | undefined }
+  ): void {
     let parts = name.split('.');
 
     if (this.options.engineInfo) {
@@ -163,12 +165,15 @@ export default class DSLImpl implements DSL {
 
     return (match) => {
       for (let i = 0; i < dslMatches.length; i += 3) {
-        match(dslMatches[i]).to(dslMatches[i + 1], dslMatches[i + 2]);
+        match(dslMatches[i] as string).to(
+          dslMatches[i + 1] as string,
+          dslMatches[i + 2] as MatchCallback
+        );
       }
     };
   }
 
-  mount(_name: string, options: MountOptions = {}) {
+  mount(_name: string, options: MountOptions = {}): void {
     let engineRouteMap = this.options.resolveRouteMap(_name);
     let name = _name;
 
diff --git a/packages/@ember/-internals/routing/lib/system/engines.ts b/packages/@ember/-internals/routing/lib/system/engines.ts
index b6f89fe53ea..4d4ce378f58 100644
--- a/packages/@ember/-internals/routing/lib/system/engines.ts
+++ b/packages/@ember/-internals/routing/lib/system/engines.ts
@@ -7,5 +7,5 @@ export interface EngineInfo {
 
 export interface EngineRouteInfo extends EngineInfo {
   localFullName: string;
-  serializeMethod?: any;
+  serializeMethod?: (model: {}, params: string[]) => { [key: string]: unknown | undefined };
 }
diff --git a/packages/@ember/-internals/routing/lib/system/route.ts b/packages/@ember/-internals/routing/lib/system/route.ts
index 0411715f2b5..3ed36a1101f 100644
--- a/packages/@ember/-internals/routing/lib/system/route.ts
+++ b/packages/@ember/-internals/routing/lib/system/route.ts
@@ -47,7 +47,10 @@ import EmberRouter, { QueryParam } from './router';
 
 export const ROUTE_CONNECTIONS = new WeakMap();
 
-export function defaultSerialize(model: {}, params: string[]) {
+export function defaultSerialize(
+  model: {},
+  params: string[]
+): { [key: string]: unknown } | undefined {
   if (params.length < 1 || !model) {
     return;
   }
@@ -67,7 +70,7 @@ export function defaultSerialize(model: {}, params: string[]) {
   return object;
 }
 
-export function hasDefaultSerialize(route: Route) {
+export function hasDefaultSerialize(route: Route): boolean {
   return route.serialize === defaultSerialize;
 }