@Override
public Abstract.ClassDefinition loadSource(SourceId sourceId, ErrorReporter errorReporter)
throws IOException {
if (sourceId.getStorage() != this) return null;
if (!isAvailable(sourceId)) return null;
Path file = sourceFileForSource(sourceId);
FileSource fileSource = new FileSource(sourceId, file);
Abstract.ClassDefinition definition = fileSource.load(errorReporter);
// Make sure we loaded the right revision
return Files.getLastModifiedTime(file).equals(sourceId.myMtime) ? definition : null;
}
