export mxRejectedStatus as fxPromiseIsRejected()

dckc · Jan 11, 2020 · c9423d1 · c9423d1
1 parent 60a508c
commit c9423d1
Showing 1 changed file with 12 additions and 0 deletions.
diff --git a/xs/sources/xsPromise.c b/xs/sources/xsPromise.c
@@ -1439,4 +1439,16 @@ txS1 fxPromiseIsPending(txMachine* the, txSlot* instance) {
 	return status->value.integer == mxPendingStatus;
 }
 
+txS1 fxPromiseIsRejected(txMachine* the, txSlot* instance) {
+	if (instance->kind != XS_REFERENCE_KIND) {
+		return 0;
+	}
+	txSlot *promise = instance->value.reference;
+	if (!mxIsPromise(promise)) {
+		return 0;
+	}
+	txSlot* status = mxPromiseStatus(promise);
+	return status->value.integer == mxRejectedStatus;
+}
+