Qore Programming Language
1.12.1
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parse type: reference to a lvalue expression More...
#include <ReferenceNode.h>
Public Member Methods | |
DLLLOCAL | ReferenceNode (const ReferenceNode &old) |
creates a copy of the object More... | |
DLLLOCAL | ReferenceNode (QoreValue exp, const QoreTypeInfo *typeInfo, QoreObject *self, const void *lvalue_id, const qore_class_private *cls) |
creates the ReferenceNode object - internal function, not exported, not part of the Qore API | |
virtual DLLEXPORT bool | derefImpl (ExceptionSink *xsink) |
called when the object is deleted | |
virtual DLLEXPORT QoreString * | getAsString (bool &del, int foff, ExceptionSink *xsink) const |
returns a QoreString giving the verbose string representation of the value More... | |
virtual DLLEXPORT int | getAsString (QoreString &str, int foff, ExceptionSink *xsink) const |
concatenate the verbose string representation of the value to an existing QoreString More... | |
DLLEXPORT const QoreTypeInfo * | getLValueTypeInfo () const |
returns the type information for the lvalue referenced More... | |
DLLEXPORT const QoreTypeInfo * | getTypeInfo () const |
returns the type information for this object More... | |
virtual DLLEXPORT const char * | getTypeName () const |
returns the type name as a c string | |
virtual DLLEXPORT bool | is_equal_hard (const AbstractQoreNode *v, ExceptionSink *xsink) const |
compares the values | |
virtual DLLEXPORT bool | is_equal_soft (const AbstractQoreNode *v, ExceptionSink *xsink) const |
compares the values | |
virtual DLLEXPORT AbstractQoreNode * | realCopy () const |
returns a copy of the object | |
DLLEXPORT ReferenceNode * | refRefSelf () const |
returns a reference to itself | |
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... | |
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... | |
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 class DateTime * | getDateTimeRepresentation (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 QoreString * | getStringRepresentation (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... | |
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 AbstractQoreNode & | operator= (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... | |
DLLEXPORT void | ref () const |
increments the reference count | |
DLLEXPORT AbstractQoreNode * | refSelf () 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 | |
virtual DLLEXPORT | ~ReferenceNode () |
frees all memory and destroys the object | |
DLLEXPORT QoreValue | doEval (ExceptionSink *xsink) const |
returns the value of the reference | |
virtual DLLEXPORT QoreValue | evalImpl (bool &needs_deref, ExceptionSink *xsink) const |
returns the value of the reference | |
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 | |
parse type: reference to a lvalue expression
This type could be passed to a builtin function. To get and set the value of the reference, use the TypeSafeReferenceHelper class. To create a reference argument to pass to a user or builtin function, use the ReferenceArgumentHelper class.
DLLLOCAL ReferenceNode::ReferenceNode | ( | const ReferenceNode & | old | ) |
creates a copy of the object
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virtual |
returns a QoreString giving the verbose string representation of the value
Used for n and N printf formatting. Do not call this function directly; use the QoreNodeAsStringHelper class (defined in QoreStringNode.h) instead
del | if this is true when the function returns, then the returned QoreString pointer should be deleted, if false, then it must not be |
foff | for multi-line formatting offset, -1 = no line breaks (ignored in this version of the function) |
xsink | ignored in this version of the function |
Implements AbstractQoreNode.
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virtual |
concatenate the verbose string representation of the value to an existing QoreString
used for n and N printf formatting
str | the string representation of the type will be concatenated to this QoreString reference |
foff | for multi-line formatting offset, -1 = no line breaks (ignored in this version of the function) |
xsink | ignored in this version of the function |
Implements AbstractQoreNode.
DLLEXPORT const QoreTypeInfo* ReferenceNode::getLValueTypeInfo | ( | ) | const |
returns the type information for the lvalue referenced
DLLEXPORT const QoreTypeInfo* ReferenceNode::getTypeInfo | ( | ) | const |
returns the type information for this object