public string GenerateSourceMap(string fileName, string content, Action <SourceMapBuilder> before = null)
{
if (this.AssemblyInfo.SourceMap.Enabled)
{
var projectPath = Path.GetDirectoryName(this.Location);
SourceMapGenerator.Generate(fileName, projectPath, ref content,
before,
(sourceRelativePath) =>
{
string path = null;
ParsedSourceFile sourceFile = null;
try
{
path = Path.Combine(projectPath, sourceRelativePath);
sourceFile = this.ParsedSourceFiles.First(pf => pf.ParsedFile.FileName == path);
return(sourceFile.SyntaxTree.TextSource ?? sourceFile.SyntaxTree.ToString(Translator.GetFormatter()));
}
catch (Exception ex)
{
throw (TranslatorException)TranslatorException.Create(
"Could not get ParsedSourceFile for SourceMap. Exception: {0}; projectPath: {1}; sourceRelativePath: {2}; path: {3}.",
ex.ToString(), projectPath, sourceRelativePath, path);
}
},
new string[0], this.SourceFiles, this.AssemblyInfo.SourceMap.Eol, this.Log
);
}
return(content);
}
public static void Generate(string scriptFileName, string basePath, ref string content, Action <SourceMapBuilder> beforeGenerate, Func <string, string> sourceContent, string[] names, IList <string> sourceFiles, UnicodeNewline?forceEols, ILogger logger)
{
var fileName = Path.GetFileName(scriptFileName);
var generator = new SourceMapGenerator(fileName, "", basePath, forceEols);
StringLocation location = null;
string script = content;
int offset = 0;
content = tokenRegex.Replace(content, match =>
{
location = SourceMapGenerator.LocationFromPos(script, match.Index, location, ref offset);
offset += match.Length;
var sourceLine = int.Parse(match.Groups[2].Value);
var sourceCol = int.Parse(match.Groups[3].Value);
var sourcePath = sourceFiles[int.Parse(match.Groups[1].Value)];
//sourcePath = sourcePath.Substring(basePath.Length + 1);
generator.RecordLocation(location.Line, location.Column, sourcePath, sourceLine, sourceCol);
return("");
});
var sources = generator.SourceMapBuilder.SourceUrlList;
List <string> contents = new List <string>();
foreach (var source in sources)
{
contents.Add(sourceContent(source));
}
// Chrome handles it very strange, need more investigate
//generator._sourceMapBuilder.SourceNameList.AddRange(names);
beforeGenerate?.Invoke(generator.SourceMapBuilder);
var map = generator.GetSourceMap(contents.ToArray());
if (logger != null)
{
logger.Trace("SourceMap for " + scriptFileName);
logger.Trace(map);
}
var encoded = "//# sourceMappingURL=data:application/json;base64,"
+ Convert.ToBase64String(System.Text.Encoding.UTF8.GetBytes(map));
if (logger != null)
{
logger.Trace("Base64 SourceMap for " + scriptFileName);
logger.Trace(encoded);
}
content = content + Emitter.NEW_LINE + encoded + Emitter.NEW_LINE;
}
