Hi, I want to compare Pharo (8) source code definitions. One source is already "filed in" the image and the other source is in a .st file in chunk format (the result of a file out). I've attached in this mail an example for reproducibility. In my search for a simple equality operator, I found that MCSnapshot(s) understand #= so it could be used like this: | imageSnapshot fileSnapshot | 'MySampleClass.st' asFileReference fileIn. imageSnapshot := (RPackageOrganizer default packageOf: MySampleClass) mcPackage snapshot. fileSnapshot := (MCStReader on: 'MySampleClass.st' asFileReference readStream) snapshot. imageSnapshot = fileSnapshot. But to my surprise, the file snapshot from MCStReader is not reading the class definitions, so comparing them should answer <true> (assuming nothing has been modified) but it always returns <false>. I've also seen that both Ring chunk importers do not read methods. (RingChunkImporter fromStream: 'MySampleClass.st' asFileReference readStream) packages collect: #allMethods. (RGChunkImporter fromStream: 'MySampleClass.st' asFileReference readStream) packages collect: #allMethods. The only "solution" I've found so far is to read into CodeChunk's and then implement the #= CodeImporter chunksFromFileNamed: 'MySampleClass.st'. But I don't like it and also I think there should be a clever way to compare source between image and .st declarations. Any ideas? Hernán