feat: init

node_modules/undici/lib/dispatcher/dispatcher.js

@@ -0,0 +1,65 @@
+'use strict'
+const EventEmitter = require('node:events')
+
+class Dispatcher extends EventEmitter {
+  dispatch () {
+    throw new Error('not implemented')
+  }
+
+  close () {
+    throw new Error('not implemented')
+  }
+
+  destroy () {
+    throw new Error('not implemented')
+  }
+
+  compose (...args) {
+    // So we handle [interceptor1, interceptor2] or interceptor1, interceptor2, ...
+    const interceptors = Array.isArray(args[0]) ? args[0] : args
+    let dispatch = this.dispatch.bind(this)
+
+    for (const interceptor of interceptors) {
+      if (interceptor == null) {
+        continue
+      }
+
+      if (typeof interceptor !== 'function') {
+        throw new TypeError(`invalid interceptor, expected function received ${typeof interceptor}`)
+      }
+
+      dispatch = interceptor(dispatch)
+
+      if (dispatch == null || typeof dispatch !== 'function' || dispatch.length !== 2) {
+        throw new TypeError('invalid interceptor')
+      }
+    }
+
+    return new ComposedDispatcher(this, dispatch)
+  }
+}
+
+class ComposedDispatcher extends Dispatcher {
+  #dispatcher = null
+  #dispatch = null
+
+  constructor (dispatcher, dispatch) {
+    super()
+    this.#dispatcher = dispatcher
+    this.#dispatch = dispatch
+  }
+
+  dispatch (...args) {
+    this.#dispatch(...args)
+  }
+
+  close (...args) {
+    return this.#dispatcher.close(...args)
+  }
+
+  destroy (...args) {
+    return this.#dispatcher.destroy(...args)
+  }
+}
+
+module.exports = Dispatcher