From 363723fc84f7b8477592e0105aeb331ec9a017af Mon Sep 17 00:00:00 2001
From: Florian Dold <florian.dold@gmail.com>
Date: Mon, 14 Aug 2017 05:01:11 +0200
Subject: node_modules

---
 node_modules/webpack-sources/lib/CachedSource.js | 116 ++++++++++++-----------
 1 file changed, 62 insertions(+), 54 deletions(-)

(limited to 'node_modules/webpack-sources/lib/CachedSource.js')

diff --git a/node_modules/webpack-sources/lib/CachedSource.js b/node_modules/webpack-sources/lib/CachedSource.js
index 50732aebd..0a81c5c45 100644
--- a/node_modules/webpack-sources/lib/CachedSource.js
+++ b/node_modules/webpack-sources/lib/CachedSource.js
@@ -2,69 +2,77 @@
 	MIT License http://www.opensource.org/licenses/mit-license.php
 	Author Tobias Koppers @sokra
 */
-function CachedSource(source) {
-	this._source = source;
-	this._cachedSource = undefined;
-	this._cachedSize = undefined;
-	this._cachedMaps = {};
+"use strict";
 
-	if(source.node) this.node = function(options) {
-		return this._source.node(options);
-	};
+const Source = require("./Source");
 
-	if(source.listMap) this.listMap = function(options) {
-		return this._source.listMap(options);
-	};
-}
-module.exports = CachedSource;
-
-CachedSource.prototype.source = function() {
-	if(typeof this._cachedSource !== "undefined") return this._cachedSource;
-	return this._cachedSource = this._source.source();
-};
+class CachedSource extends Source {
+	constructor(source) {
+		super();
+		this._source = source;
+		this._cachedSource = undefined;
+		this._cachedSize = undefined;
+		this._cachedMaps = {};
 
-CachedSource.prototype.size = function() {
-	if(typeof this._cachedSize !== "undefined") return this._cachedSize;
-	if(typeof this._cachedSource !== "undefined")
-		return this._cachedSize = this._cachedSource.length;
-	return this._cachedSize = this._source.size();
-};
+		if(source.node) this.node = function(options) {
+			return this._source.node(options);
+		};
 
-CachedSource.prototype.sourceAndMap = function(options) {
-	var key = JSON.stringify(options);
-	if(typeof this._cachedSource !== "undefined" && key in this._cachedMaps)
-		return {
-			source: this._cachedSource,
-			map: this._cachedMaps[key]
+		if(source.listMap) this.listMap = function(options) {
+			return this._source.listMap(options);
 		};
-	else if(typeof this._cachedSource !== "undefined") {
+	}
+
+	source() {
+		if(typeof this._cachedSource !== "undefined") return this._cachedSource;
+		return this._cachedSource = this._source.source();
+	}
+
+	size() {
+		if(typeof this._cachedSize !== "undefined") return this._cachedSize;
+		if(typeof this._cachedSource !== "undefined")
+			return this._cachedSize = this._cachedSource.length;
+		return this._cachedSize = this._source.size();
+	}
+
+	sourceAndMap(options) {
+		const key = JSON.stringify(options);
+		if(typeof this._cachedSource !== "undefined" && key in this._cachedMaps)
+			return {
+				source: this._cachedSource,
+				map: this._cachedMaps[key]
+			};
+		else if(typeof this._cachedSource !== "undefined") {
+			return {
+				source: this._cachedSource,
+				map: this._cachedMaps[key] = this._source.map(options)
+			};
+		} else if(key in this._cachedMaps) {
+			return {
+				source: this._cachedSource = this._source.source(),
+				map: this._cachedMaps[key]
+			};
+		}
+		const result = this._source.sourceAndMap(options);
+		this._cachedSource = result.source;
+		this._cachedMaps[key] = result.map;
 		return {
 			source: this._cachedSource,
-			map: this._cachedMaps[key] = this._source.map(options)
-		};
-	} else if(key in this._cachedMaps) {
-		return {
-			source: this._cachedSource = this._source.source(),
 			map: this._cachedMaps[key]
 		};
 	}
-	var result = this._source.sourceAndMap(options);
-	this._cachedSource = result.source;
-	this._cachedMaps[key] = result.map;
-	return {
-		source: this._cachedSource,
-		map: this._cachedMaps[key]
-	};
-};
 
-CachedSource.prototype.map = function(options) {
-	if(!options) options = {};
-	var key = JSON.stringify(options);
-	if(key in this._cachedMaps)
-		return this._cachedMaps[key];
-	return this._cachedMaps[key] = this._source.map();
-};
+	map(options) {
+		if(!options) options = {};
+		const key = JSON.stringify(options);
+		if(key in this._cachedMaps)
+			return this._cachedMaps[key];
+		return this._cachedMaps[key] = this._source.map();
+	}
 
-CachedSource.prototype.updateHash = function(hash) {
-	this._source.updateHash(hash);
-};
+	updateHash(hash) {
+		this._source.updateHash(hash);
+	}
+}
+
+module.exports = CachedSource;
-- 
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