  CAttr | Declaration object for holding lists of verilog attributes and their corresponding expressions |
| CBackend | This is the abstract class to overload to create new backend tools |
| CBackendAbort | Exception thrown by CBackend::Process when plugin aborts due to an internal error |
| CBackendException | Base class for exceptions that can be thrown by backend plugins |
| CBackendExit | Exception thrown by CBackend::Process when plugin terminates early without an error |
| CBackendFail | Exception thrown by CBackend::Process when plugin terminates early with an error |
| CBlock | Declaration class for block constructs |
| CDataType | Base class for describing data types |
| CDecl | Base class for describing declaration objects |
| CElement | An element of compilation passed to and from plugins |
| CFref | Forward reference declaration |
| CFunction | Declaration object for functions and tasks |
| CGate | Gate declaration object |
| CGenvar | Declaration object for genvars |
| CInstance | Declaration object for module and gate instances |
| CMacro | Declaration object for preprocessor macros |
| CModule | |
| CNet | Declaration object for nets |
| CNode | Primary data structure representing parse tree nodes |
| CNode_pr | Helper class for building tail recursive binary CNode trees Used by parser |
| CNode_sp | Smart pointer for CNode class Creates safe references to CNode arguments Supports assignment, dereference, and equality operations |
| CNode_triplet | Helper class for building tail recursive binary CNode trees Used by parser |
| CObject | Base class for vrq objects |
| CObstack | Bulk object allocation object |
| Coord_t | Structure to hold file coordinates |
| CParam | Declaration object for parameters |
| CPort | Declaration object for module/function/task ports |
| CPortDir | Declaration object for input/output/inout statements |
| CSimpleType | Class for describing simple builtin data types |
| CSpecify | Declaration object for specify blocks |
| CSymbol | Holder for character strings |
| CSymtab | Aux class used to create symbol table scoping |
| CUInt | Infinite precision unsigned arithmetic class Storage within object will be used whenever possible |
| CVar | Declaration object for variables |
| CVector | Bit vector class for implementing 4 state verilog signed and unsigned arithmetic |
| External | This class is a stub that will be used to create linkages for external references |
| LabelBitsInfo | |
| Message | Plugin's should need these |
| StrengthPair_t | Pair of strengths |
 Systask | Class method to query systask info |
1.8.6