lib: implement AbortSignal.abort()

Refs: whatwg/dom#960
jasnell · Mar 10, 2021 · cfb02a0 · cfb02a0
1 parent 853086f
commit cfb02a0
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Showing 3 changed files with 12 additions and 2 deletions.
diff --git a/.eslintrc.js b/.eslintrc.js
@@ -315,6 +315,7 @@ module.exports = {
   },
   globals: {
     AbortController: 'readable',
+    AbortSignal: 'readable',
     Atomics: 'readable',
     BigInt: 'readable',
     BigInt64Array: 'readable',

diff --git a/lib/internal/abort_controller.js b/lib/internal/abort_controller.js
@@ -50,6 +50,10 @@ class AbortSignal extends EventTarget {
       aborted: this.aborted
     }, depth, options);
   }
+
+  static abort() {
+    return createAbortSignal(true);
+  }
 }
 
 ObjectDefineProperties(AbortSignal.prototype, {
@@ -65,10 +69,10 @@ ObjectDefineProperty(AbortSignal.prototype, SymbolToStringTag, {
 
 defineEventHandler(AbortSignal.prototype, 'abort');
 
-function createAbortSignal() {
+function createAbortSignal(aborted = false) {
   const signal = new EventTarget();
   ObjectSetPrototypeOf(signal, AbortSignal.prototype);
-  signal[kAborted] = false;
+  signal[kAborted] = aborted;
   return signal;
 }
 

diff --git a/test/parallel/test-abortcontroller.js b/test/parallel/test-abortcontroller.js
@@ -67,3 +67,8 @@ const { ok, strictEqual, throws } = require('assert');
   strictEqual(toString(ac), '[object AbortController]');
   strictEqual(toString(ac.signal), '[object AbortSignal]');
 }
+
+{
+  const signal = AbortSignal.abort();
+  ok(signal.aborted);
+}