chushihua

node_modules/webpack/lib/formatLocation.js

@@ -0,0 +1,54 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"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 `+${pos.index}`;
+			else
+				return "";
+		default:
+			return "";
+	}
+};
+
+const formatLocation = (loc) => {
+	if(loc === null)
+		return "";
+	const typeOfLoc = typeof loc;
+	switch(typeOfLoc) {
+		case "string":
+			return loc;
+		case "number":
+			return `${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}`;
+				return `${formatPosition(loc.start)}-${formatPosition(loc.end)}`;
+			}
+			if(loc.start)
+				return formatPosition(loc.start);
+			return formatPosition(loc);
+		default:
+			return "";
+	}
+};
+
+module.exports = formatLocation;