concept CSnippet {
  long snippetID;
  S type;
  S title, md5, transpilationMD5;
  
  File file() { ret snippetDB_textFile(snippetID); }
  S text() { ret loadTextFile(file()); }
  bool hasText() { ret fileExists(file()); }
  void setText(S text) { saveTextFile(file(), text); }
  int textLength() { ret hasText() ? fileSize(file()) : -1; }
}