| /* |
| MIT License http://www.opensource.org/licenses/mit-license.php |
| Author Tobias Koppers @sokra |
| */ |
| "use strict"; |
| |
| var SourceNode = require("source-map").SourceNode; |
| var SourceMapConsumer = require("source-map").SourceMapConsumer; |
| |
| class Source { |
| |
| source() { |
| throw new Error("Abstract"); |
| } |
| |
| size() { |
| return this.source().length; |
| } |
| |
| map(options) { |
| return null; |
| } |
| |
| sourceAndMap(options) { |
| return { |
| source: this.source(), |
| map: this.map() |
| }; |
| } |
| |
| node() { |
| throw new Error("Abstract"); |
| } |
| |
| listNode() { |
| throw new Error("Abstract"); |
| } |
| |
| updateHash(hash) { |
| var source = this.source(); |
| hash.update(source || ""); |
| } |
| } |
| |
| module.exports = Source; |