Trinity API Reference KJS::Undefined Class Reference
#include <value.h>
Inheritance diagram for KJS::Undefined:
Static Public Member Functions | |
| static Undefined | dynamicCast (const Value &v) |
Friends | |
| class | UndefinedImp |
Additional Inherited Members | |
 Public Member Functions inherited from KJS::Value | |
| Value (ValueImp *v) | |
| Value (const Value &v) | |
| Value & | operator= (const Value &v) |
| bool | isValid () const |
| bool | isNull () const |
| ValueImp * | imp () const |
| Type | type () const |
| bool | isA (Type t) const |
| Value | toPrimitive (ExecState *exec, Type preferredType=UnspecifiedType) const |
| bool | toBoolean (ExecState *exec) const |
| double | toNumber (ExecState *exec) const |
| int | toInteger (ExecState *exec) const |
| int | toInt32 (ExecState *exec) const |
| unsigned int | toUInt32 (ExecState *exec) const |
| unsigned short | toUInt16 (ExecState *exec) const |
| UString | toString (ExecState *exec) const |
| Object | toObject (ExecState *exec) const |
| bool | toUInt32 (unsigned &i) const |
| Protected Attributes inherited from KJS::Value | |
| ValueImp * | rep |
Detailed Description
Represents an primitive Undefined value.
All instances of this class share the same implementation object, so == will always return true for any comparison between two Undefined objects.
Member Function Documentation
◆ dynamicCast()
Converts a Value into an Undefined.
If the value's type is not UndefinedType, a null object will be returned (i.e. one with it's internal pointer set to 0). If you do not know for sure whether the value is of type UndefinedType, you should check the isValid() methods afterwards before calling any methods on the returned value.
- Returns
- The value converted to an Undefined
The documentation for this class was generated from the following files: