From 76cb9c2a39d477a64824a985ade40507e3bbade1 Mon Sep 17 00:00:00 2001
From: Adam Mathes <adam@adammathes.com>
Date: Fri, 13 Feb 2026 21:34:48 -0800
Subject: feat(vanilla): add testing infrastructure and tests (NK-wjnczv)

---
 .../node_modules/undici/lib/api/abort-signal.js    | 59 ++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 vanilla/node_modules/undici/lib/api/abort-signal.js

(limited to 'vanilla/node_modules/undici/lib/api/abort-signal.js')

diff --git a/vanilla/node_modules/undici/lib/api/abort-signal.js b/vanilla/node_modules/undici/lib/api/abort-signal.js
new file mode 100644
index 0000000..608170b
--- /dev/null
+++ b/vanilla/node_modules/undici/lib/api/abort-signal.js
@@ -0,0 +1,59 @@
+'use strict'
+
+const { addAbortListener } = require('../core/util')
+const { RequestAbortedError } = require('../core/errors')
+
+const kListener = Symbol('kListener')
+const kSignal = Symbol('kSignal')
+
+function abort (self) {
+  if (self.abort) {
+    self.abort(self[kSignal]?.reason)
+  } else {
+    self.reason = self[kSignal]?.reason ?? new RequestAbortedError()
+  }
+  removeSignal(self)
+}
+
+function addSignal (self, signal) {
+  self.reason = null
+
+  self[kSignal] = null
+  self[kListener] = null
+
+  if (!signal) {
+    return
+  }
+
+  if (signal.aborted) {
+    abort(self)
+    return
+  }
+
+  self[kSignal] = signal
+  self[kListener] = () => {
+    abort(self)
+  }
+
+  addAbortListener(self[kSignal], self[kListener])
+}
+
+function removeSignal (self) {
+  if (!self[kSignal]) {
+    return
+  }
+
+  if ('removeEventListener' in self[kSignal]) {
+    self[kSignal].removeEventListener('abort', self[kListener])
+  } else {
+    self[kSignal].removeListener('abort', self[kListener])
+  }
+
+  self[kSignal] = null
+  self[kListener] = null
+}
+
+module.exports = {
+  addSignal,
+  removeSignal
+}
-- 
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