InvalidObject Class Reference

This Object represents an invalid object. More...

Inheritance diagram for InvalidObject:

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Collaboration diagram for InvalidObject:

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List of all members.

Public Member Functions
	InvalidObject ()
	Construct a new InvalidObject.
InvalidObject *	copy () const
	Returns a copy of this Object.
const ObjectType *	type () const
	Returns the lowermost ObjectType that this object is an instantiation of.
Static Public Member Functions
static const ObjectType *	stype ()
	Returns the ObjectType representing the InvalidObject type.

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Detailed Description

This Object represents an invalid object.

If a calculation fails, then often an InvalidObject is returned, indicating that the generated object is invalid.

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Member Function Documentation

InvalidObject* InvalidObject::copy

(

)

const [virtual]

Returns a copy of this Object.

The copy is an exact copy. Changes to the copy don't affect the original.

Implements Object.

const ObjectType* InvalidObject::type

(

)

const [virtual]

Returns the lowermost ObjectType that this object is an instantiation of.

E.g. if you want to get a string containing the internal name of the type of an object, you can do:

 tn = object.type().internalName()

Implements Object.