diff options
| author | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
|---|---|---|
| committer | Florian Dold <florian.dold@gmail.com> | 2017-05-03 15:35:00 +0200 |
| commit | de98e0b232509d5f40c135d540a70e415272ff85 (patch) | |
| tree | a79222a5b58484ab3b80d18efcaaa7ccc4769b33 /node_modules/webpack-sources/lib/CachedSource.js | |
| parent | e0c9d480a73fa629c1e4a47d3e721f1d2d345406 (diff) | |
node_modules
Diffstat (limited to 'node_modules/webpack-sources/lib/CachedSource.js')
| -rw-r--r-- | node_modules/webpack-sources/lib/CachedSource.js | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/node_modules/webpack-sources/lib/CachedSource.js b/node_modules/webpack-sources/lib/CachedSource.js new file mode 100644 index 000000000..50732aebd --- /dev/null +++ b/node_modules/webpack-sources/lib/CachedSource.js @@ -0,0 +1,70 @@ +/*
+ 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 = {};
+
+ if(source.node) this.node = function(options) {
+ return this._source.node(options);
+ };
+
+ 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();
+};
+
+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();
+};
+
+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]
+ };
+ 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]
+ };
+ }
+ 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();
+};
+
+CachedSource.prototype.updateHash = function(hash) {
+ this._source.updateHash(hash);
+};
|