1 files changed, 26 insertions, 0 deletions
diff --git a/node_modules/@11ty/eleventy/src/Util/MemoizeFunction.js b/node_modules/@11ty/eleventy/src/Util/MemoizeFunction.js
new file mode 100644
index 0000000..f66a155
--- /dev/null
+++ b/node_modules/@11ty/eleventy/src/Util/MemoizeFunction.js
@@ -0,0 +1,26 @@
+export default function (callback, options = {}) {
+	let { bench, name } = options;
+	let cache = new Map();
+
+	return (...args) => {
+		// Only supports single-arg functions for now.
+		if (args.filter(Boolean).length > 1) {
+			bench?.get(`(count) ${name} Not valid for memoize`).incrementCount();
+			return callback(...args);
+		}
+
+		let [cacheKey] = args;
+
+		if (!cache.has(cacheKey)) {
+			cache.set(cacheKey, callback(...args));
+
+			bench?.get(`(count) ${name} memoize miss`).incrementCount();
+
+			return cache.get(cacheKey);
+		}
+
+		bench?.get(`(count) ${name} memoize hit`).incrementCount();
+
+		return cache.get(cacheKey);
+	};
+}