Qore Programming Language  0.8.7
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ResolvedCallReferenceNode Class Referenceabstract

base class for resolved call references More...

#include <CallReferenceNode.h>

Inheritance diagram for ResolvedCallReferenceNode:
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Public Member Functions

DLLLOCAL ResolvedCallReferenceNode (bool n_needs_eval=false, qore_type_t n_type=NT_FUNCREF)
 constructor is not exported outside the library
 
virtual DLLLOCAL AbstractQoreNodeexec (const QoreListNode *args, ExceptionSink *xsink) const =0
 pure virtual function for executing the function reference
 
virtual DLLLOCAL QoreProgramgetProgram () const
 returns a pointer to the QoreProgram object associated with this reference (can be 0)
 
- Public Member Functions inherited from AbstractCallReferenceNode
virtual DLLEXPORT bool getAsBoolImpl () const
 returns false unless perl-boolean-evaluation is enabled, in which case it returns true
 
virtual DLLLOCAL int getAsString (QoreString &str, int foff, ExceptionSink *xsink) const
 concatenate the verbose string representation of the value to an existing QoreString
 
virtual DLLLOCAL QoreStringgetAsString (bool &del, int foff, ExceptionSink *xsink) const
 returns a QoreString giving the verbose string representation of the value
 
virtual DLLLOCAL const char * getTypeName () const
 returns the type name as a c string
 
- 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
 
DLLEXPORT AbstractQoreNode (const AbstractQoreNode &v)
 copy constructor
 
DLLEXPORT bool getAsBool () const
 returns the boolean value of the object
 
DLLEXPORT int getAsInt () const
 returns the integer value of the object
 
DLLEXPORT int64 getAsBigInt () const
 returns the 64-bit integer value of the object
 
DLLEXPORT double getAsFloat () const
 returns the float value of the object
 
virtual DLLEXPORT QoreStringgetStringRepresentation (bool &del) const
 returns the value of the type converted to a string, default implementation: returns the empty string
 
virtual DLLEXPORT void getStringRepresentation (QoreString &str) const
 concatentates the value of the type to an existing QoreString reference, default implementation does nothing
 
virtual DLLEXPORT class DateTimegetDateTimeRepresentation (bool &del) const
 returns the DateTime representation of this type (default implementation: returns ZeroDate, del = false)
 
virtual DLLEXPORT void getDateTimeRepresentation (DateTime &dt) const
 assigns the date representation of a value to the DateTime reference passed, default implementation does nothing
 
DLLLOCAL bool needs_eval () const
 returns true if the object needs evaluation to return a value, false if not
 
DLLLOCAL qore_type_t getType () const
 returns the data type
 
DLLEXPORT AbstractQoreNodeeval (ExceptionSink *xsink) const
 evaluates the object and returns a value (or 0)
 
DLLEXPORT AbstractQoreNodeeval (bool &needs_deref, ExceptionSink *xsink) const
 optionally evaluates the argument
 
DLLEXPORT int64 bigIntEval (ExceptionSink *xsink) const
 evaluates the object and returns a 64-bit integer value
 
DLLEXPORT int integerEval (ExceptionSink *xsink) const
 evaluates the object and returns an integer value
 
DLLEXPORT bool boolEval (ExceptionSink *xsink) const
 evaluates the object and returns a boolean value
 
DLLEXPORT double floatEval (ExceptionSink *xsink) const
 evaluates the object and returns a floating-point value
 
DLLLOCAL bool is_value () const
 returns true if the node represents a value
 
DLLEXPORT void deref (ExceptionSink *xsink)
 decrements the reference count and calls derefImpl() if there_can_be_only_one is false, otherwise does nothing
 
DLLEXPORT AbstractQoreNoderefSelf () const
 returns "this" with an incremented reference count
 
DLLEXPORT void ref () const
 increments the reference count
 
DLLLOCAL bool isReferenceCounted () const
 returns true if the object is reference-counted
 
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
 
- Public Member Functions inherited from QoreReferenceCounter
DLLEXPORT QoreReferenceCounter ()
 creates the reference counter object
 
DLLEXPORT ~QoreReferenceCounter ()
 destroys the reference counter object
 
DLLLOCAL int reference_count () const
 gets the reference count
 
DLLLOCAL bool is_unique () const
 returns true if the reference count is 1
 
DLLEXPORT void ROreference () const
 atomically increments the reference count
 
DLLEXPORT bool ROdereference () const
 atomically decrements the reference count
 

Additional Inherited Members

- Protected Member Functions inherited from AbstractCallReferenceNode
virtual DLLLOCAL AbstractQoreNodeevalImpl (ExceptionSink *xsink) const
 this function should never be called for function references; this function should never be called directly
 
virtual DLLLOCAL AbstractQoreNodeevalImpl (bool &needs_deref, ExceptionSink *xsink) const
 this function should never be called for function references; this function should never be called directly
 
virtual DLLLOCAL int64 bigIntEvalImpl (ExceptionSink *xsink) const
 this function should never be called for function references; this function should never be called directly
 
virtual DLLLOCAL int integerEvalImpl (ExceptionSink *xsink) const
 this function should never be called for function references; this function should never be called directly
 
virtual DLLLOCAL bool boolEvalImpl (ExceptionSink *xsink) const
 this function should never be called for function references; this function should never be called directly
 
virtual DLLLOCAL double floatEvalImpl (ExceptionSink *xsink) const
 this function should never be called for function references; this function should never be called directly
 
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
 
- Protected Attributes inherited from AbstractQoreNode
qore_type_t type: 11
 the type of the object
 
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
 
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
 
bool custom_reference_handlers: 1
 set to one for objects that need custom reference handlers
 

Detailed Description

base class for resolved call references

Member Function Documentation

virtual DLLLOCAL AbstractQoreNode* ResolvedCallReferenceNode::exec ( const QoreListNode args,
ExceptionSink xsink 
) const
pure virtual

pure virtual function for executing the function reference

executes the function reference and returns the value returned

Parameters
argsthe arguments to the function
xsinkany Qore-language exception thrown (and not handled) will be added here
Returns
a pointer to an AbstractQoreNode, the caller owns the reference count returned (can also be 0)
virtual DLLLOCAL QoreProgram* ResolvedCallReferenceNode::getProgram ( ) const
virtual

returns a pointer to the QoreProgram object associated with this reference (can be 0)

this function is not exported in the library's public interface

Returns
a pointer to the QoreProgram object associated with this reference (can be 0)

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