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node_modules/webpack/lib/compareLocations.js

@@ -3,31 +3,47 @@
 	Author Tobias Koppers @sokra
 */
 "use strict";
-module.exports = function compareLocations(a, b) {
-	if(typeof a === "string") {
-		if(typeof b === "string") {
-			if(a < b) return -1;
-			if(a > b) return 1;
+
+/** @typedef {import("./Dependency").DependencyLocation} DependencyLocation */
+
+// TODO webpack 5 remove string type from a and b
+/**
+ * Compare two locations
+ * @param {string|DependencyLocation} a A location node
+ * @param {string|DependencyLocation} b A location node
+ * @returns {-1|0|1} sorting comparator value
+ */
+module.exports = (a, b) => {
+	if (typeof a === "string") {
+		if (typeof b === "string") {
+			if (a < b) return -1;
+			if (a > b) return 1;
 			return 0;
-		} else if(typeof b === "object") {
+		} else if (typeof b === "object") {
 			return 1;
 		} else {
 			return 0;
 		}
-	} else if(typeof a === "object") {
-		if(typeof b === "string") {
+	} else if (typeof a === "object") {
+		if (typeof b === "string") {
 			return -1;
-		} else if(typeof b === "object") {
-			if(a.start && b.start) {
+		} else if (typeof b === "object") {
+			if ("start" in a && "start" in b) {
 				const ap = a.start;
 				const bp = b.start;
-				if(ap.line < bp.line) return -1;
-				if(ap.line > bp.line) return 1;
-				if(ap.column < bp.column) return -1;
-				if(ap.column > bp.column) return 1;
+				if (ap.line < bp.line) return -1;
+				if (ap.line > bp.line) return 1;
+				if (ap.column < bp.column) return -1;
+				if (ap.column > bp.column) return 1;
+			}
+			if ("name" in a && "name" in b) {
+				if (a.name < b.name) return -1;
+				if (a.name > b.name) return 1;
+			}
+			if ("index" in a && "index" in b) {
+				if (a.index < b.index) return -1;
+				if (a.index > b.index) return 1;
 			}
-			if(a.index < b.index) return -1;
-			if(a.index > b.index) return 1;
 			return 0;
 		} else {
 			return 0;