Qore Programming Language  0.8.11.1
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>

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Collaboration diagram for UniqueValueQoreNode:
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Public Member Functions

DLLLOCAL UniqueValueQoreNode (qore_type_t t)
 constructor takes the type argument
 
DLLLOCAL UniqueValueQoreNode (const UniqueValueQoreNode &)
 copy constructor
 
virtual DLLEXPORT AbstractQoreNoderealCopy () 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 AbstractQoreNodeeval (ExceptionSink *xsink) const
 evaluates the object and returns a value (or 0) More...
 
DLLEXPORT AbstractQoreNodeeval (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 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 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...
 
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 AbstractQoreNodeparseInit (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 AbstractQoreNoderefSelf () 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 AbstractQoreNodeevalImpl (ExceptionSink *xsink) const
 should never be called for value types More...
 
virtual DLLEXPORT AbstractQoreNodeevalImpl (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: