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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/webpack-sources/lib/CachedSource.js
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Diffstat (limited to 'node_modules/webpack-sources/lib/CachedSource.js')
-rw-r--r--node_modules/webpack-sources/lib/CachedSource.js80
1 files changed, 80 insertions, 0 deletions
diff --git a/node_modules/webpack-sources/lib/CachedSource.js b/node_modules/webpack-sources/lib/CachedSource.js
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+++ b/node_modules/webpack-sources/lib/CachedSource.js
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+/*
+ MIT License http://www.opensource.org/licenses/mit-license.php
+ Author Tobias Koppers @sokra
+*/
+"use strict";
+
+const Source = require("./Source");
+
+class CachedSource extends Source {
+ constructor(source) {
+ super();
+ this._source = source;
+ this._cachedSource = undefined;
+ this._cachedSize = undefined;
+ this._cachedMaps = {};
+
+ if(source.node) this.node = function(options) {
+ return this._source.node(options);
+ };
+
+ if(source.listMap) this.listMap = function(options) {
+ return this._source.listMap(options);
+ };
+ }
+
+ 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") {
+ if(Buffer.from.length === 1) return new Buffer(this._cachedSource).length;
+ return this._cachedSize = Buffer.byteLength(this._cachedSource);
+ }
+ 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]
+ };
+ }
+
+ 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();
+ }
+
+ updateHash(hash) {
+ this._source.updateHash(hash);
+ }
+}
+
+module.exports = CachedSource;