feat(core): enhance service method typings

packages/cordis/src/index.ts

@@ -32,7 +32,16 @@ export class Context extends core.Context {
 }
 
 export abstract class Service<T = unknown, C extends Context = Context> extends core.Service<T, C> {
-  public logger!: Logger
+  /** @deprecated use `this.ctx.logger` instead */
+  public logger: Logger
+
+  constructor(config: T)
+  constructor(ctx: C, config: T)
+  constructor(ctx: C, name: string, immediate?: boolean)
+  constructor(...args: any[]) {
+    super(args[0], args[1], args[2])
+    this.logger = this.ctx.logger(this.name)
+  }
 
   [core.Service.setup]() {
     this.ctx = new Context() as C

packages/core/src/service.ts

@@ -1,9 +1,8 @@
 import { Awaitable, defineProperty } from 'cosmokit'
 import { Context } from './context.ts'
-import { createCallable, joinPrototype, symbols } from './index.ts'
+import { createCallable, joinPrototype, symbols } from './utils.ts'
 
 export abstract class Service<T = unknown, C extends Context = Context> {
-  static readonly init: unique symbol = symbols.init as any
   static readonly setup: unique symbol = symbols.setup as any
   static readonly invoke: unique symbol = symbols.invoke as any
   static readonly extend: unique symbol = symbols.extend as any
@@ -15,14 +14,14 @@ export abstract class Service<T = unknown, C extends Context = Context> {
   protected fork?(ctx: C, config: any): void
 
   protected ctx!: C
-  protected [Context.trace]!: C
+  protected [symbols.trace]!: C
 
   public name!: string
   public config!: T
 
   constructor(config: T)
-  constructor(ctx: C | undefined, config: T)
-  constructor(ctx: C | undefined, name: string, immediate?: boolean)
+  constructor(ctx: C, config: T)
+  constructor(ctx: C, name: string, immediate?: boolean)
   constructor(...args: any[]) {
     let _ctx: C | undefined, name: string | undefined, immediate: boolean | undefined, config: any
     if (Context.is<C>(args[0])) {
@@ -51,12 +50,11 @@ export abstract class Service<T = unknown, C extends Context = Context> {
     self.name = name
     self.config = config
     defineProperty(self, symbols.trace, self.ctx)
-    self[symbols.init]()
 
     self.ctx.provide(name)
     self.ctx.runtime.name = name
     if (immediate) {
-      if (_ctx) self[Context.expose] = name
+      if (_ctx) self[symbols.expose] = name
       else self.ctx[name] = self
     }
 
@@ -71,34 +69,32 @@ export abstract class Service<T = unknown, C extends Context = Context> {
     return Context.associate(self, name)
   }
 
-  [Context.filter](ctx: Context) {
-    return ctx[Context.shadow][this.name] === this.ctx[Context.shadow][this.name]
+  protected [symbols.filter](ctx: Context) {
+    return ctx[symbols.shadow][this.name] === this.ctx[symbols.shadow][this.name]
   }
 
-  static [Symbol.hasInstance](instance: any) {
-    let constructor = instance.constructor
-    while (constructor) {
-      if (constructor === this) return true
-      constructor = Object.getPrototypeOf(constructor)
-    }
-    return false
-  }
-
-  [symbols.setup]() {
+  protected [symbols.setup]() {
     this.ctx = new Context() as C
   }
 
-  [symbols.init]() {}
-
-  [symbols.extend](props?: any) {
-    const caller = this[Context.trace]
+  protected [symbols.extend](props?: any) {
+    const caller = this[symbols.trace]
     let self: any
     if (this[Service.invoke]) {
       self = createCallable(this.name, this)
     } else {
       self = Object.create(this)
     }
-    defineProperty(self, Context.trace, caller)
+    defineProperty(self, symbols.trace, caller)
     return Context.associate(Object.assign(self, props), this.name)
   }
+
+  static [Symbol.hasInstance](instance: any) {
+    let constructor = instance.constructor
+    while (constructor) {
+      if (constructor === this) return true
+      constructor = Object.getPrototypeOf(constructor)
+    }
+    return false
+  }
 }

packages/core/src/utils.ts

@@ -13,7 +13,6 @@ export const symbols = {
   intercept: Symbol.for('cordis.intercept') as typeof Context.intercept,
 
   // service symbols
-  init: Symbol.for('cordis.init') as typeof Service.init,
   setup: Symbol.for('cordis.setup') as typeof Service.setup,
   invoke: Symbol.for('cordis.invoke') as typeof Service.invoke,
   extend: Symbol.for('cordis.extend') as typeof Service.extend,

packages/hmr/src/index.ts

@@ -37,11 +37,11 @@ interface Reload {
 }
 
 class Watcher extends Service {
-  static name = 'hmr'
   static inject = ['loader']
 
   private base: string
   private watcher!: FSWatcher
+  private initialURL!: string
 
   /**
    * changes from externals E will always trigger a full reload
@@ -69,9 +69,7 @@ class Watcher extends Service {
   /** stashed changes */
   private stashed = new Set<string>()
 
-  private initialURL!: string
-
-  constructor(ctx: Context, private config: Watcher.Config) {
+  constructor(ctx: Context, public config: Watcher.Config) {
     super(ctx, 'hmr')
     this.base = resolve(ctx.baseDir, config.base || '')
     this.initialURL = pathToFileURL(ctx.loader.filename).href