Chapter 3: Pascal Tokens

Fig 3.1:

Chapter 4: Symbol Table

attributes= HashMap<SymTabKey, Object>

SymTabKeys

public enum SymTabKeyImpl implements SymTabKey {
    // Constant.
    CONSTANT_VALUE,
    // Procedure or function.
    ROUTINE_CODE, ROUTINE_SYMTAB, ROUTINE_ICODE,
    ROUTINE_PARMS, ROUTINE_ROUTINES,
    // Variable or record field value.
    DATA_VALUE
}

Figure 4-3: