X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Futils.ts;h=a0a9e530131cbe78df7401dff80452eef16e8634;hb=d91689fda0fa7a85014ac25276cf2cf0a9d81ce2;hp=d7ce5a210f2dea09290fd90a5f4eb64fcb2162d5;hpb=bfc75ccaf49d915d2b7e73c92360787b3245321a;p=poolifier.git

diff --git a/src/utils.ts b/src/utils.ts
index d7ce5a21..a0a9e530 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -250,3 +250,27 @@ export const min = (...args: number[]): number =>
  */
 export const max = (...args: number[]): number =>
   args.reduce((maximum, num) => (maximum > num ? maximum : num), -Infinity)
+
+/**
+ * Wraps a function so that it can only be called once.
+ *
+ * @param fn - The function to wrap.
+ * @param context - The context to bind the function to.
+ * @returns The wrapped function.
+ * @internal
+ */
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+export const once = <T, A extends any[], R>(
+  fn: (...args: A) => R,
+  context: T
+): ((...args: A) => R) => {
+  let result: R
+  return (...args: A) => {
+    if (fn != null) {
+      result = fn.apply<T, A, R>(context, args)
+      ;(fn as unknown as undefined) = (context as unknown as undefined) =
+        undefined
+    }
+    return result
+  }
+}