||Holds errors the parser encountered while parsing the source code. When parsing an EcmaScript source file, the parser uses a list of these classes to store the errors it found while parsing the file.
||Base class for the EcmaScript component. There's currently only 1 subclass of this. This class holds all the functionality needed to set a script, load it, run it and to debug it.
||Script stack frame holds the locals and the current method when debugging a script. It's used for debugging purposes and can for example be used to show the state of the callstack and the locals defined on that call stack entry.