VObj Class Reference
[VObj interfaces and base classes (not derived from DynI)]
#include <DynObj.h>
Public Member Functions | |
Non-virtuals | |
Functions included with DO_FAT_VOBJ define | |
| DynObjType * | GetType () const |
| bool | IsA (int type_id) const |
| bool | CanBeA (int type_id) const |
| bool | IsA (const char *type) const |
| void * | GetObj (int type_id, doCastAlgo algo=doCastFull) |
| void * | GetObj (const char *type, doCastAlgo algo=doCastFull) |
| const char * | GetError (int *perr_code=NULL) const |
| void | ClearError () |
| bool | SetError (const char *err_str, int err_code=-1) const |
| bool | IsA (int type_id, DynObjType *ptype) const |
| bool | CanBeA (int type_id, DynObjType *ptype) const |
| bool | IsA (const char *type, DynObjType *ptype) const |
| const char * | GetTypeName () const |
| bool | doIsOk () const |
Detailed Description
This is the "stipulated base class" for objects with virtual functions.In this class the virtual functions (number of them, signatures) are not known. It only promises that it has a VTable, and we can do type lookups from that. VObjs can be used when we have C++ classes that don't derive from DynI. Objects of type VObj are not created, but one can get pointers to them through casts/queries (doGetVObj).
Member Function Documentation
| DynObjType* VObj::GetType | ( | ) | const |
Returns type structure for this object. Does a global lookup using object VPTR.
Reimplemented in DynI.
| bool VObj::IsA | ( | int | type_id | ) | const [inline] |
Test if object is of a certain type ID IsA returns true if the requested type can be returned without adjusting the 'this' pointer (must be main base class).
Reimplemented in DynI.
| bool VObj::CanBeA | ( | int | type_id | ) | const [inline] |
Test if object 'can be' of a certain type ID CanBeA returns true if the requested type is available as any base class of the object (main base or side base).
Reimplemented in DynI.
| bool VObj::IsA | ( | const char * | type | ) | const [inline] |
Same as IsA but using type string
Reimplemented in DynI.
| void* VObj::GetObj | ( | int | type_id, | |
| doCastAlgo | algo = doCastFull | |||
| ) | [inline] |
Raw cast, lookup internal type by type ID.
Reimplemented in DynI.
| void* VObj::GetObj | ( | const char * | type, | |
| doCastAlgo | algo = doCastFull | |||
| ) | [inline] |
Raw cast, lookup internal type by type string.
Reimplemented in DynI.
| const char* VObj::GetError | ( | int * | perr_code = NULL |
) | const |
Returns current error string for object or NULL if no error
- Parameters:
-
perr_code a location to store the error code, default is NULL
- Returns:
- The error string or NULL if no error.
| void VObj::ClearError | ( | ) |
This will clear the error state for the object if set
| bool VObj::SetError | ( | const char * | err_str, | |
| int | err_code = -1 | |||
| ) | const |
Set the internal error state for the object
| bool VObj::IsA | ( | int | type_id, | |
| DynObjType * | ptype | |||
| ) | const |
IsA variant, here we know our own type
| bool VObj::CanBeA | ( | int | type_id, | |
| DynObjType * | ptype | |||
| ) | const |
CanBeA variant, here we know our own type
| bool VObj::IsA | ( | const char * | type, | |
| DynObjType * | ptype | |||
| ) | const |
IsA variant, here we know our own type
| const char* VObj::GetTypeName | ( | ) | const [inline] |
Returns name of type
Reimplemented in DynI.
| bool VObj::doIsOk | ( | ) | const [inline] |
Check if object exists and has no errors
Reimplemented in DynI.
The documentation for this class was generated from the following file:
