24 #ifndef _QORE_ABSTRACTQORENODE_H
26 #define _QORE_ABSTRACTQORENODE_H
29 #include <qore/QoreReferenceCounter.h>
36 #define FMT_YAML_SHORT -2
56 DLLLOCAL
virtual bool getAsBoolImpl()
const {
return false; }
62 DLLLOCAL
virtual int getAsIntImpl()
const {
return 0; }
68 DLLLOCAL
virtual int64 getAsBigIntImpl()
const {
return 0; }
74 DLLLOCAL
virtual double getAsFloatImpl()
const {
return 0.0; }
100 DLLEXPORT
virtual int64 bigIntEvalImpl(
ExceptionSink *xsink)
const;
107 DLLEXPORT
virtual int integerEvalImpl(
ExceptionSink *xsink)
const;
114 DLLEXPORT
virtual bool boolEvalImpl(
ExceptionSink *xsink)
const;
121 DLLEXPORT
virtual double floatEvalImpl(
ExceptionSink *xsink)
const;
136 DLLEXPORT
virtual void customRef()
const;
178 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);
294 DLLEXPORT
virtual const char *
getTypeName()
const = 0;
373 DLLEXPORT
void ref()
const;
413 DLLEXPORT
void deref();
467 DLLLOCAL
void *
operator new(size_t);
DLLEXPORT AbstractQoreNode * refSelf() const
returns "this" with an incremented reference count
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
DLLEXPORT bool getAsBool() const
returns the boolean value of the object
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 contai...
DLLEXPORT AbstractQoreNode * eval(ExceptionSink *xsink) const
evaluates the object and returns a value (or 0)
DLLEXPORT double getAsFloat() const
returns the float value of the object
virtual DLLEXPORT int64 bigIntEvalImpl(ExceptionSink *xsink) const
should never be called for value types
DLLEXPORT int64 bigIntEval(ExceptionSink *xsink) const
evaluates the object and returns a 64-bit integer value
Holds absolute and relative date/time values in Qore with precision to the microsecond.
Definition: DateTime.h:85
DLLLOCAL UniqueValueQoreNode(qore_type_t t)
constructor takes the type argument
Definition: AbstractQoreNode.h:473
DLLEXPORT int integerEval(ExceptionSink *xsink) const
evaluates the object and returns an integer value
DLLLOCAL SimpleQoreNode(const SimpleQoreNode &v)
copy constructor
Definition: AbstractQoreNode.h:406
The base class for all value and parse types in Qore expression trees.
Definition: AbstractQoreNode.h:47
virtual DLLEXPORT QoreString * getStringRepresentation(bool &del) const
returns the value of the type converted to a string, default implementation: returns the empty string...
DLLLOCAL UniqueValueQoreNode(const UniqueValueQoreNode &)
copy constructor
Definition: AbstractQoreNode.h:476
virtual DLLEXPORT class DateTime * getDateTimeRepresentation(bool &del) const
returns the DateTime representation of this type (default implementation: returns ZeroDate...
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 c...
DLLEXPORT bool boolEval(ExceptionSink *xsink) const
evaluates the object and returns a boolean value
DLLEXPORT int getAsInt() const
returns the integer value of the object
DLLEXPORT int64 getAsBigInt() const
returns the 64-bit integer value of the object
signed short qore_type_t
used to identify unique Qore data and parse types (descendents of AbstractQoreNode) ...
Definition: common.h:59
virtual DLLEXPORT const char * getTypeName() const =0
returns the type name as a c string
Qore's string type supported by the QoreEncoding class.
Definition: QoreString.h:42
virtual DLLEXPORT AbstractQoreNode * evalImpl(ExceptionSink *xsink) const
should never be called for value types
bool custom_reference_handlers
set to one for objects that need custom reference handlers
Definition: AbstractQoreNode.h:161
bool needs_eval_flag
if this is true then the type can be evaluated
Definition: AbstractQoreNode.h:155
virtual DLLEXPORT double floatEvalImpl(ExceptionSink *xsink) const
should never be called for value types
this class is for value types that will exists only once in the Qore library, reference counting is d...
Definition: AbstractQoreNode.h:461
provides atomic reference counting to Qore objects
Definition: QoreReferenceCounter.h:34
DLLLOCAL bool is_value() const
returns true if the node represents a value
Definition: AbstractQoreNode.h:355
virtual DLLEXPORT int integerEvalImpl(ExceptionSink *xsink) const
should never be called for value types
DLLEXPORT void ref() const
increments the reference count
virtual DLLEXPORT AbstractQoreNode * realCopy() const =0
returns a copy of the object; the caller owns the reference count
The base class for all types in Qore expression trees that cannot throw an exception when deleted...
Definition: AbstractQoreNode.h:396
virtual DLLEXPORT bool boolEvalImpl(ExceptionSink *xsink) const
should never be called for value types
container for holding Qore-language exception information and also for registering a "thread_exit" ca...
Definition: ExceptionSink.h:35
DLLLOCAL bool needs_eval() const
returns true if the object needs evaluation to return a value, false if not
Definition: AbstractQoreNode.h:256
DLLEXPORT void deref(ExceptionSink *xsink)
decrements the reference count and calls derefImpl() if there_can_be_only_one is false, otherwise does nothing
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...
Definition: AbstractQoreNode.h:453
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
DLLLOCAL qore_type_t getType() const
returns the data type
Definition: AbstractQoreNode.h:286
bool there_can_be_only_one
if this is set to true, then reference counting is turned off for objects of this class ...
Definition: AbstractQoreNode.h:158
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
Definition: AbstractQoreNode.h:403
bool value
this is true for values, if false then either the type needs evaluation to produce a value or is a pa...
Definition: AbstractQoreNode.h:152
virtual DLLEXPORT AbstractQoreNode * realCopy() const
returns itself; objects of this type are not reference-counted and only deleted manually (by static d...
virtual DLLEXPORT ~AbstractQoreNode()
default destructor does nothing
base class for simple value types
Definition: AbstractQoreNode.h:417
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 ...
DLLLOCAL bool isReferenceCounted() const
returns true if the object is reference-counted
Definition: AbstractQoreNode.h:376
DLLEXPORT double floatEval(ExceptionSink *xsink) const
evaluates the object and returns a floating-point value
qore_type_t type
the type of the object
Definition: AbstractQoreNode.h:149