Qore Programming Language: UniqueValueQoreNode Class Reference

Qore Programming Language 0.8.11

- Main Page
- Related Pages
- Modules
- Classes
- Files

- Class List
- Class Index
- Class Hierarchy
- Class Members

All Classes Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
Public Member Functions | List of all members
UniqueValueQoreNode Class Reference

this class is for value types that will exists only once in the Qore library, reference counting is disabled More...

`#include <AbstractQoreNode.h>`

Inheritance diagram for UniqueValueQoreNode:
[legend]
Collaboration diagram for UniqueValueQoreNode:
[legend]

## Public Member Functions
DLLLOCAL | UniqueValueQoreNode (qore_type_t t)
| constructor takes the type argument
DLLLOCAL | UniqueValueQoreNode (const UniqueValueQoreNode &)
| copy constructor
virtual DLLEXPORT AbstractQoreNode * | realCopy () const
| returns itself; objects of this type are not reference-counted and only deleted manually (by static destruction)
Public Member Functions inherited from SimpleValueQoreNode
DLLLOCAL | SimpleValueQoreNode (qore_type_t t, bool n_there_can_be_only_one=false)
| creates the object by assigning the type code and setting the "value" flag, unsetting the "needs_eval" flag, and setting "there_can_be_only_one"
Public Member Functions inherited from SimpleQoreNode
DLLLOCAL | SimpleQoreNode (qore_type_t t, bool n_value, bool n_needs_eval, bool n_there_can_be_only_one=false)
| constructor takes the type and value arguments
DLLLOCAL | SimpleQoreNode (const SimpleQoreNode &v)
| copy constructor
Public Member Functions inherited from AbstractQoreNode
DLLEXPORT | AbstractQoreNode (qore_type_t t, bool n_value, bool n_needs_eval, bool n_there_can_be_only_one=false, bool n_custom_reference_handlers=false)
| constructor takes the type More...
DLLEXPORT | AbstractQoreNode (const AbstractQoreNode &v)
| copy constructor
DLLEXPORT int64 | bigIntEval (ExceptionSink *xsink) const
| evaluates the object and returns a 64-bit integer value More...
DLLEXPORT bool | boolEval (ExceptionSink *xsink) const
| evaluates the object and returns a boolean value More...
DLLEXPORT void | deref (ExceptionSink *xsink)
| decrements the reference count and calls derefImpl() if there_can_be_only_one is false, otherwise does nothing More...
DLLEXPORT AbstractQoreNode * | eval (ExceptionSink *xsink) const
| evaluates the object and returns a value (or 0) More...
DLLEXPORT AbstractQoreNode * | eval (bool &needs_deref, ExceptionSink *xsink) const
| optionally evaluates the argument More...
DLLEXPORT double | floatEval (ExceptionSink *xsink) const
| evaluates the object and returns a floating-point value More...
DLLEXPORT int64 | getAsBigInt () const
| returns the 64-bit integer value of the object More...
DLLEXPORT bool | getAsBool () const
| returns the boolean value of the object More...
DLLEXPORT double | getAsFloat () const
| returns the float value of the object More...
DLLEXPORT int | getAsInt () const
| returns the integer value of the object More...
virtual DLLEXPORT int | getAsString (QoreString &str, int foff, ExceptionSink *xsink) const =0
| concatenate the verbose string representation of the value (including all contained values for container types) to an existing QoreString More...
virtual DLLEXPORT QoreString * | getAsString (bool &del, int foff, ExceptionSink *xsink) const =0
| returns a QoreString giving the verbose string representation of the value (including all contained values for container types) More...
virtual DLLEXPORT class DateTime * | getDateTimeRepresentation (bool &del) const
| returns the DateTime representation of this type (default implementation: returns ZeroDate, del = false) More...
virtual DLLEXPORT void | getDateTimeRepresentation (DateTime &dt) const
| assigns the date representation of a value to the DateTime reference passed, default implementation does nothing More...
virtual DLLEXPORT QoreString * | getStringRepresentation (bool &del) const
| returns the value of the type converted to a string, default implementation: returns the empty string More...
virtual DLLEXPORT void | getStringRepresentation (QoreString &str) const
| concatentates the value of the type to an existing QoreString reference, default implementation does nothing More...
DLLLOCAL qore_type_t | getType () const
| returns the data type More...
virtual DLLEXPORT const char * | getTypeName () const =0
| returns the type name as a c string More...
DLLEXPORT int | integerEval (ExceptionSink *xsink) const
| evaluates the object and returns an integer value More...
virtual DLLEXPORT bool | is_equal_hard (const AbstractQoreNode *v, ExceptionSink *xsink) const =0
| tests for equality ("deep compare" including all contained values for container types) without type conversions (hard compare) More...
virtual DLLEXPORT bool | is_equal_soft (const AbstractQoreNode *v, ExceptionSink *xsink) const =0
| tests for equality ("deep compare" including all contained values for container types) with possible type conversion (soft compare) More...
DLLLOCAL bool | is_value () const
| returns true if the node represents a value More...
DLLLOCAL bool | isReferenceCounted () const
| returns true if the object is reference-counted
DLLLOCAL bool | needs_eval () const
| returns true if the object needs evaluation to return a value, false if not More...
virtual DLLEXPORT AbstractQoreNode * | parseInit (LocalVar *oflag, int pflag, int &lvids, const QoreTypeInfo *&typeInfo)
| for use by parse types to initialize them for execution during stage 1 parsing More...
DLLEXPORT void | ref () const
| increments the reference count
DLLEXPORT AbstractQoreNode * | refSelf () const
| returns "this" with an incremented reference count More...
Public Member Functions inherited from QoreReferenceCounter
DLLEXPORT | QoreReferenceCounter ()
| creates the reference counter object
DLLEXPORT | ~QoreReferenceCounter ()
| destroys the reference counter object
DLLLOCAL bool | is_unique () const
| returns true if the reference count is 1 More...
DLLLOCAL int | reference_count () const
| gets the reference count More...
DLLEXPORT bool | ROdereference () const
| atomically decrements the reference count More...
DLLEXPORT void | ROreference () const
| atomically increments the reference count

## Additional Inherited Members
Protected Member Functions inherited from SimpleValueQoreNode
virtual DLLEXPORT int64 | bigIntEvalImpl (ExceptionSink *xsink) const
| should never be called for value types More...
virtual DLLEXPORT bool | boolEvalImpl (ExceptionSink *xsink) const
| should never be called for value types More...
virtual DLLEXPORT AbstractQoreNode * | evalImpl (ExceptionSink *xsink) const
| should never be called for value types More...
virtual DLLEXPORT AbstractQoreNode * | evalImpl (bool &needs_deref, ExceptionSink *xsink) const
| should never be called for value types More...
virtual DLLEXPORT double | floatEvalImpl (ExceptionSink *xsink) const
| should never be called for value types More...
virtual DLLEXPORT int | integerEvalImpl (ExceptionSink *xsink) const
| should never be called for value types More...
Protected Member Functions inherited from AbstractQoreNode
virtual DLLEXPORT | ~AbstractQoreNode ()
| default destructor does nothing More...
Protected Attributes inherited from AbstractQoreNode
bool | custom_reference_handlers: 1
| set to one for objects that need custom reference handlers
bool | needs_eval_flag: 1
| if this is true then the type can be evaluated
bool | there_can_be_only_one: 1
| if this is set to true, then reference counting is turned off for objects of this class
qore_type_t | type: 11
| the type of the object More...
bool | value: 1
| this is true for values, if false then either the type needs evaluation to produce a value or is a parse expression
Protected Attributes inherited from QoreReferenceCounter
QoreThreadLock | mRO
| pthread lock to ensure atomicity of updates for architectures where we don't have an atomic increment and decrement implementation

## Detailed Description

this class is for value types that will exists only once in the Qore library, reference counting is disabled

these types must be statically allocated

The documentation for this class was generated from the following file:

- include/qore/AbstractQoreNode.h (6585)