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node_modules/webpack/lib/formatLocation.js

@@ -5,50 +5,71 @@
 
 "use strict";
 
-const formatPosition = (pos) => {
-	if(pos === null)
-		return "";
-	const typeOfPos = typeof pos;
-	switch(typeOfPos) {
-		case "string":
-			return pos;
-		case "number":
-			return `${pos}`;
-		case "object":
-			if(typeof pos.line === "number" && typeof pos.column === "number")
-				return `${pos.line}:${pos.column}`;
-			else if(typeof pos.line === "number")
-				return `${pos.line}:?`;
-			else if(typeof pos.index === "number")
-				return `+${pos.index}`;
-			else
-				return "";
-		default:
+/** @typedef {import("./Dependency").DependencyLocation} DependencyLocation */
+/** @typedef {import("./Dependency").SourcePosition} SourcePosition */
+
+// TODO webpack 5: pos must be SourcePosition
+/**
+ * @param {SourcePosition|DependencyLocation|string} pos position
+ * @returns {string} formatted position
+ */
+const formatPosition = pos => {
+	if (pos === null) return "";
+	// TODO webpack 5: Simplify this
+	if (typeof pos === "string") return pos;
+	if (typeof pos === "number") return `${pos}`;
+	if (typeof pos === "object") {
+		if ("line" in pos && "column" in pos) {
+			return `${pos.line}:${pos.column}`;
+		} else if ("line" in pos) {
+			return `${pos.line}:?`;
+		} else if ("index" in pos) {
+			// TODO webpack 5 remove this case
+			return `+${pos.index}`;
+		} else {
 			return "";
+		}
 	}
+	return "";
 };
 
-const formatLocation = (loc) => {
-	if(loc === null)
-		return "";
-	const typeOfLoc = typeof loc;
-	switch(typeOfLoc) {
-		case "string":
-			return loc;
-		case "number":
-			return `${loc}`;
-		case "object":
-			if(loc.start && loc.end) {
-				if(typeof loc.start.line === "number" && typeof loc.end.line === "number" && typeof loc.end.column === "number" && loc.start.line === loc.end.line)
-					return `${formatPosition(loc.start)}-${loc.end.column}`;
+// TODO webpack 5: loc must be DependencyLocation
+/**
+ * @param {DependencyLocation|SourcePosition|string} loc location
+ * @returns {string} formatted location
+ */
+const formatLocation = loc => {
+	if (loc === null) return "";
+	// TODO webpack 5: Simplify this
+	if (typeof loc === "string") return loc;
+	if (typeof loc === "number") return `${loc}`;
+	if (typeof loc === "object") {
+		if ("start" in loc && loc.start && "end" in loc && loc.end) {
+			if (
+				typeof loc.start === "object" &&
+				typeof loc.start.line === "number" &&
+				typeof loc.end === "object" &&
+				typeof loc.end.line === "number" &&
+				typeof loc.end.column === "number" &&
+				loc.start.line === loc.end.line
+			) {
+				return `${formatPosition(loc.start)}-${loc.end.column}`;
+			} else {
 				return `${formatPosition(loc.start)}-${formatPosition(loc.end)}`;
 			}
-			if(loc.start)
-				return formatPosition(loc.start);
-			return formatPosition(loc);
-		default:
-			return "";
+		}
+		if ("start" in loc && loc.start) {
+			return formatPosition(loc.start);
+		}
+		if ("name" in loc && "index" in loc) {
+			return `${loc.name}[${loc.index}]`;
+		}
+		if ("name" in loc) {
+			return loc.name;
+		}
+		return formatPosition(loc);
 	}
+	return "";
 };
 
 module.exports = formatLocation;