Qore Programming Language 1.19.5
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AbstractCallReferenceNode Class Reference

base class for call references, reference-counted, dynamically allocated only More...

#include <CallReferenceNode.h>

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

virtual DLLEXPORT bool getAsBoolImpl () const
 returns false unless perl-boolean-evaluation is enabled, in which case it returns true More...
 
virtual DLLLOCAL QoreStringgetAsString (bool &del, int foff, ExceptionSink *xsink) const
 returns a QoreString giving the verbose string representation of the value More...
 
virtual DLLLOCAL int getAsString (QoreString &str, int foff, ExceptionSink *xsink) const
 concatenate the verbose string representation of the value to an existing QoreString More...
 
virtual DLLLOCAL const char * getTypeName () const
 returns the type name as a c string
 
- 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
 

Private Member Methods

DLLLOCAL AbstractCallReferenceNode (bool n_needs_eval, bool n_there_can_be_only_one, qore_type_t n_type=NT_FUNCREF)
 protected constructor for subclasses that are not reference-counted
 
virtual DLLLOCAL QoreValue evalImpl (bool &needs_deref, ExceptionSink *xsink) const
 this function should never be called for function references; this function should never be called directly More...
 
- Private Member Methods inherited from AbstractQoreNode
virtual DLLEXPORT ~AbstractQoreNode ()
 default destructor does nothing More...
 

Additional Inherited Members

- 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

base class for call references, reference-counted, dynamically allocated only

cannot be a ParseNode or SimpleQoreNode because we require deref(xsink)

Member Function Documentation

◆ evalImpl()

virtual DLLLOCAL QoreValue AbstractCallReferenceNode::evalImpl ( bool &  needs_deref,
ExceptionSink xsink 
) const
privatevirtual

this function should never be called for function references; this function should never be called directly

in debug mode this function calls assert(false)

Implements AbstractQoreNode.

Reimplemented in ResolvedCallReferenceNode, LocalStaticMethodCallReferenceNode, LocalMethodCallReferenceNode, and LocalFunctionCallReferenceNode.

◆ getAsBoolImpl()

virtual DLLEXPORT bool AbstractCallReferenceNode::getAsBoolImpl ( ) const
virtual

returns false unless perl-boolean-evaluation is enabled, in which case it returns true

Returns
false unless perl-boolean-evaluation is enabled, in which case it returns true

Reimplemented from AbstractQoreNode.

◆ getAsString() [1/2]

virtual DLLLOCAL QoreString * AbstractCallReferenceNode::getAsString ( bool &  del,
int  foff,
ExceptionSink xsink 
) const
virtual

returns a QoreString giving the verbose string representation of the value

used for n and N printf formatting

Parameters
delif this is true when the function returns, then the returned QoreString pointer should be deleted, if false, then it must not be
fofffor multi-line formatting offset, -1 = no line breaks
xsinknot used by this implementation of the function
Note
Use the QoreNodeAsStringHelper class (defined in QoreStringNode.h) instead of using this function directly
See also
QoreNodeAsStringHelper

Implements AbstractQoreNode.

◆ getAsString() [2/2]

virtual DLLLOCAL int AbstractCallReferenceNode::getAsString ( QoreString str,
int  foff,
ExceptionSink xsink 
) const
virtual

concatenate the verbose string representation of the value to an existing QoreString

used for n and N printf formatting

Parameters
strthe string representation of the type will be concatenated to this QoreString reference
fofffor multi-line formatting offset, -1 = no line breaks
xsinknot used by this implementation of the function
Returns
-1 for exception raised, 0 = OK

Implements AbstractQoreNode.


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