初始化

node_modules/undici/lib/global.js

@@ -0,0 +1,50 @@
+'use strict'
+
+// We include a version number for the Dispatcher API. In case of breaking changes,
+// this version number must be increased to avoid conflicts.
+const globalDispatcher = Symbol.for('undici.globalDispatcher.1')
+const { InvalidArgumentError } = require('./core/errors')
+const Agent = require('./dispatcher/agent')
+
+if (getGlobalDispatcher() === undefined) {
+  setGlobalDispatcher(new Agent())
+}
+
+function setGlobalDispatcher (agent) {
+  if (!agent || typeof agent.dispatch !== 'function') {
+    throw new InvalidArgumentError('Argument agent must implement Agent')
+  }
+  Object.defineProperty(globalThis, globalDispatcher, {
+    value: agent,
+    writable: true,
+    enumerable: false,
+    configurable: false
+  })
+}
+
+function getGlobalDispatcher () {
+  return globalThis[globalDispatcher]
+}
+
+// These are the globals that can be installed by undici.install().
+// Not exported by index.js to avoid use outside of this module.
+const installedExports = /** @type {const} */ (
+  [
+    'fetch',
+    'Headers',
+    'Response',
+    'Request',
+    'FormData',
+    'WebSocket',
+    'CloseEvent',
+    'ErrorEvent',
+    'MessageEvent',
+    'EventSource'
+  ]
+)
+
+module.exports = {
+  setGlobalDispatcher,
+  getGlobalDispatcher,
+  installedExports
+}