Qore Programming Language 1.19.5
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SimpleQoreNode Class Reference

The base class for all types in Qore expression trees that cannot throw an exception when deleted. More...

#include <AbstractQoreNode.h>

Inheritance diagram for SimpleQoreNode:
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Collaboration diagram for SimpleQoreNode:
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Public Member Methods

DLLLOCAL SimpleQoreNode (const SimpleQoreNode &v)
 copy constructor
 
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
 
DLLEXPORT void deref (ExceptionSink *xsink)
 decrements the reference count and deletes the object when references = 0 More...
 
SimpleQoreNodeoperator= (const SimpleQoreNode &)=delete
 this function is not implemented
 
- Public Member Methods inherited from AbstractQoreNode
DLLEXPORT AbstractQoreNode (const AbstractQoreNode &v)
 copy constructor
 
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...
 
virtual DLLEXPORT void customDeref (ExceptionSink *xsink)
 
virtual DLLEXPORT void customRef () const
 special processing when the object's reference count transitions from 0-1 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...
 
virtual DLLEXPORT bool derefImpl (ExceptionSink *xsink)
 decrements the reference count More...
 
DLLEXPORT QoreValue eval (bool &needs_deref, ExceptionSink *xsink) const
 optionally evaluates the argument More...
 
DLLEXPORT QoreValue eval (ExceptionSink *xsink) const
 evaluates the object and returns a value (or 0) More...
 
virtual DLLEXPORT QoreValue evalImpl (bool &needs_deref, ExceptionSink *xsink) const =0
 optionally evaluates the argument More...
 
DLLEXPORT int64 getAsBigInt () const
 returns the 64-bit integer value of the object More...
 
virtual DLLLOCAL int64 getAsBigIntImpl () const
 default implementation, returns 0 More...
 
DLLEXPORT bool getAsBool () const
 returns the boolean value of the object More...
 
virtual DLLLOCAL bool getAsBoolImpl () const
 default implementation, returns false More...
 
DLLEXPORT double getAsFloat () const
 returns the float value of the object More...
 
virtual DLLLOCAL double getAsFloatImpl () const
 default implementation, returns 0.0 More...
 
DLLEXPORT int getAsInt () const
 returns the integer value of the object More...
 
virtual DLLLOCAL int getAsIntImpl () const
 default implementation, returns 0 More...
 
virtual DLLEXPORT QoreStringgetAsString (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 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 class DateTimegetDateTimeRepresentation (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 QoreStringgetStringRepresentation (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...
 
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...
 
DLLLOCAL AbstractQoreNodeoperator= (const AbstractQoreNode &)
 this function is not implemented; it is here as a private function in order to prohibit it from being used
 
virtual DLLLOCAL int parseInit (QoreValue &val, QoreParseContext &parse_context)
 for use by parse types to initialize them for execution during stage 1 parsing More...
 
virtual DLLEXPORT AbstractQoreNoderealCopy () const =0
 returns a copy of the object; the caller owns the reference count More...
 
DLLEXPORT void ref () const
 increments the reference count
 
DLLEXPORT AbstractQoreNoderefSelf () const
 returns "this" with an incremented reference count More...
 
- Public Member Methods inherited from QoreReferenceCounter
DLLEXPORT QoreReferenceCounter ()
 creates the reference counter object
 
DLLEXPORT QoreReferenceCounter (const QoreReferenceCounter &old)
 creates a new object with a reference count of 1 More...
 
DLLEXPORT ~QoreReferenceCounter ()
 destroys the reference counter object
 
DLLEXPORT bool is_unique () const
 returns true if the reference count is 1 More...
 
DLLEXPORT 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

- Private Member Methods inherited from AbstractQoreNode
virtual DLLEXPORT ~AbstractQoreNode ()
 default destructor does nothing More...
 
- Private 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
 

Detailed Description

The base class for all types in Qore expression trees that cannot throw an exception when deleted.

This class adds the deref() function without an ExceptionSink argument.

Member Function Documentation

◆ deref()

DLLEXPORT void AbstractQoreNode::deref ( ExceptionSink xsink)

decrements the reference count and deletes the object when references = 0

This function is not virtual and should be used when possible for SimpleQoreNode objects


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