138      * @param {string} sourceURL
141     sourceContent(sourceURL)  argument
143         return this._sourceContentByURL[sourceURL];
147      * @param {string} sourceURL
151     sourceContentProvider(sourceURL, contentType)  argument
153         const lastIndexOfDot = sourceURL.lastIndexOf(".");
154         const extension = lastIndexOfDot !== -1 ? sourceURL.substr(lastIndexOfDot + 1) : "";
156         const sourceContent = this.sourceContent(sourceURL);
159 …    return new WebInspector.CompilerSourceMappingContentProvider(sourceURL, contentType, mimeType);
211      * @param {string} sourceURL of the originating resource
215     findEntryReversed(sourceURL, lineNumber)  argument
217         const mappings = this._reverseMappingsBySourceURL[sourceURL];
254         let sourceURL = sources[sourceIndex];
278                 sourceURL = sources[sourceIndex];
285 …  this._mappings.push([lineNumber, columnNumber, sourceURL, sourceLineNumber, sourceColumnNumber]);