Website Structure

Frontend-Learner/node_modules/on-change/source/wrap-iterator.js

@@ -0,0 +1,69 @@
+import {TARGET} from './constants.js';
+
+/**
+Wraps an iterator's `next()` so yielded values (or [key, value] pairs) are passed through `prepareValue` with the correct owner and path.
+*/
+// eslint-disable-next-line max-params
+export default function wrapIterator(iterator, target, thisArgument, applyPath, prepareValue) {
+	const originalNext = iterator?.next;
+	if (typeof originalNext !== 'function') {
+		return iterator;
+	}
+
+	if (target.name === 'entries') {
+		iterator.next = function () {
+			const result = originalNext.call(this);
+
+			if (result && result.done === false) {
+				result.value[0] = prepareValue(
+					result.value[0],
+					target,
+					result.value[0],
+					applyPath,
+				);
+				result.value[1] = prepareValue(
+					result.value[1],
+					target,
+					result.value[0],
+					applyPath,
+				);
+			}
+
+			return result;
+		};
+	} else if (target.name === 'values') {
+		const keyIterator = thisArgument[TARGET].keys();
+
+		iterator.next = function () {
+			const result = originalNext.call(this);
+
+			if (result && result.done === false) {
+				result.value = prepareValue(
+					result.value,
+					target,
+					keyIterator.next().value,
+					applyPath,
+				);
+			}
+
+			return result;
+		};
+	} else {
+		iterator.next = function () {
+			const result = originalNext.call(this);
+
+			if (result && result.done === false) {
+				result.value = prepareValue(
+					result.value,
+					target,
+					result.value,
+					applyPath,
+				);
+			}
+
+			return result;
+		};
+	}
+
+	return iterator;
+}