32 #ifndef _QORE_ABSTRACTQORENODE_H
34 #define _QORE_ABSTRACTQORENODE_H
37 #include <qore/QoreReferenceCounter.h>
44 #define FMT_YAML_SHORT -2
64 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);
238 DLLEXPORT
void ref()
const;
251 DLLLOCAL
virtual void parseInit(
QoreValue& val, LocalVar* oflag,
int pflag,
int& lvids,
const QoreTypeInfo*& typeInfo);
362 DLLEXPORT
void deref();
389 DLLLOCAL
void *
operator new(size_t) =
delete;
The base class for all value and parse types in Qore expression trees.
Definition: AbstractQoreNode.h:54
DLLLOCAL bool needs_eval() const
returns true if the object needs evaluation to return a value, false if not
Definition: AbstractQoreNode.h:142
virtual DLLEXPORT void customRef() const
special processing when the object's reference count transitions from 0-1
DLLEXPORT AbstractQoreNode * refSelf() const
returns "this" with an incremented reference count
virtual DLLEXPORT AbstractQoreNode * realCopy() const =0
returns a copy of the object; the caller owns the reference count
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...
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:324
DLLEXPORT void ref() const
increments the reference count
virtual DLLLOCAL bool getAsBoolImpl() const
default implementation, returns false
Definition: AbstractQoreNode.h:260
virtual DLLEXPORT const char * getTypeName() const =0
returns the type name as a c string
DLLEXPORT int64 getAsBigInt() const
returns the 64-bit integer 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...
virtual DLLEXPORT class DateTime * getDateTimeRepresentation(bool &del) const
returns the DateTime representation of this type (default implementation: returns ZeroDate,...
virtual DLLEXPORT QoreString * getStringRepresentation(bool &del) const
returns the value of the type converted to a string, default implementation: returns the empty string
DLLEXPORT double getAsFloat() const
returns the float value of the object
virtual DLLLOCAL int64 getAsBigIntImpl() const
default implementation, returns 0
Definition: AbstractQoreNode.h:272
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:330
bool custom_reference_handlers
set to one for objects that need custom reference handlers
Definition: AbstractQoreNode.h:333
virtual DLLEXPORT bool derefImpl(ExceptionSink *xsink)
decrements the reference count
virtual DLLLOCAL double getAsFloatImpl() const
default implementation, returns 0.0
Definition: AbstractQoreNode.h:278
DLLEXPORT QoreValue eval(ExceptionSink *xsink) const
evaluates the object and returns a value (or 0)
virtual DLLLOCAL void parseInit(QoreValue &val, LocalVar *oflag, int pflag, int &lvids, const QoreTypeInfo *&typeInfo)
for use by parse types to initialize them for execution during stage 1 parsing; not exported in the l...
virtual DLLLOCAL int getAsIntImpl() const
default implementation, returns 0
Definition: AbstractQoreNode.h:266
DLLLOCAL qore_type_t getType() const
returns the data type
Definition: AbstractQoreNode.h:172
bool needs_eval_flag
if this is true then the type can be evaluated
Definition: AbstractQoreNode.h:327
qore_type_t type
the type of the object
Definition: AbstractQoreNode.h:321
DLLLOCAL bool is_value() const
returns true if the node represents a value
Definition: AbstractQoreNode.h:220
DLLLOCAL bool isReferenceCounted() const
returns true if the object is reference-counted
Definition: AbstractQoreNode.h:241
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 int getAsInt() const
returns the integer value of the object
DLLEXPORT bool getAsBool() const
returns the boolean value of the object
virtual DLLEXPORT QoreValue evalImpl(bool &needs_deref, ExceptionSink *xsink) const =0
optionally evaluates the argument
virtual DLLEXPORT void customDeref(ExceptionSink *xsink)
DLLLOCAL AbstractQoreNode & operator=(const AbstractQoreNode &)
this function is not implemented; it is here as a private function in order to prohibit it from being...
virtual DLLEXPORT ~AbstractQoreNode()
default destructor does nothing
DLLEXPORT void deref(ExceptionSink *xsink)
decrements the reference count and calls derefImpl() if there_can_be_only_one is false,...
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 ...
Holds absolute and relative date/time values in Qore with precision to the microsecond.
Definition: DateTime.h:93
container for holding Qore-language exception information and also for registering a "thread_exit" ca...
Definition: ExceptionSink.h:48
provides atomic reference counting to Qore objects
Definition: QoreReferenceCounter.h:44
Qore's string type supported by the QoreEncoding class.
Definition: QoreString.h:81
The base class for all types in Qore expression trees that cannot throw an exception when deleted.
Definition: AbstractQoreNode.h:346
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:352
SimpleQoreNode & operator=(const SimpleQoreNode &)=delete
this function is not implemented
base class for simple value types
Definition: AbstractQoreNode.h:366
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:369
virtual DLLEXPORT QoreValue evalImpl(bool &needs_deref, 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:383
DLLLOCAL UniqueValueQoreNode(qore_type_t t)
constructor takes the type argument
Definition: AbstractQoreNode.h:392
virtual DLLEXPORT AbstractQoreNode * realCopy() const
returns itself; objects of this type are not reference-counted and only deleted manually (by static d...
DLLLOCAL UniqueValueQoreNode & operator=(const UniqueValueQoreNode &)=delete
this function is not implemented
int16_t qore_type_t
used to identify unique Qore data and parse types (descendents of AbstractQoreNode)
Definition: common.h:70
long long int64
64bit integer type, cannot use int64_t here since it breaks the API on some 64-bit systems due to equ...
Definition: common.h:260
The main value class in Qore, designed to be passed by value.
Definition: QoreValue.h:262