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Qore Programming Language
0.8.11.1
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parse type: reference to a lvalue expression More...
#include <ReferenceNode.h>
Public Member Functions | |
| DLLLOCAL | ReferenceNode (AbstractQoreNode *exp, QoreObject *self, const void *lvalue_id) |
| creates the ReferenceNode object - internal function, not exported, not part of the Qore API | |
| virtual DLLEXPORT bool | derefImpl (ExceptionSink *xsink) |
| decrements the reference count 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... | |
| 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 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 | |
 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 More... | |
| DLLEXPORT | AbstractQoreNode (const AbstractQoreNode &v) |
| copy constructor | |
| DLLEXPORT int64 | bigIntEval (ExceptionSink *xsink) const |
| evaluates the object and returns a 64-bit integer value More... | |
| DLLEXPORT bool | boolEval (ExceptionSink *xsink) const |
| evaluates the object and returns a boolean value 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 AbstractQoreNode * | eval (ExceptionSink *xsink) const |
| evaluates the object and returns a value (or 0) More... | |
| DLLEXPORT AbstractQoreNode * | eval (bool &needs_deref, ExceptionSink *xsink) const |
| optionally evaluates the argument More... | |
| DLLEXPORT double | floatEval (ExceptionSink *xsink) const |
| evaluates the object and returns a floating-point value More... | |
| DLLEXPORT int64 | getAsBigInt () const |
| returns the 64-bit integer value of the object More... | |
| DLLEXPORT bool | getAsBool () const |
| returns the boolean value of the object More... | |
| DLLEXPORT double | getAsFloat () const |
| returns the float value of the object More... | |
| DLLEXPORT int | getAsInt () const |
| returns the integer value of the object 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... | |
| DLLEXPORT int | integerEval (ExceptionSink *xsink) const |
| evaluates the object and returns an integer value 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... | |
| 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 More... | |
| DLLEXPORT void | ref () const |
| increments the reference count | |
| DLLEXPORT AbstractQoreNode * | refSelf () const |
| returns "this" with an incremented reference count More... | |
| Public Member Functions inherited from QoreReferenceCounter | |
| DLLEXPORT | QoreReferenceCounter () |
| creates the reference counter object | |
| DLLEXPORT | ~QoreReferenceCounter () |
| destroys the reference counter object | |
| DLLLOCAL bool | is_unique () const |
| returns true if the reference count is 1 More... | |
| DLLLOCAL 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 | |
Protected Member Functions | |
| virtual DLLEXPORT | ~ReferenceNode () |
| frees all memory and destroys the object | |
| virtual DLLEXPORT int64 | bigIntEvalImpl (ExceptionSink *xsink) const |
| returns the value of the reference as an int64 | |
| virtual DLLEXPORT bool | boolEvalImpl (ExceptionSink *xsink) const |
| returns the value of the reference as a bool | |
| virtual DLLEXPORT AbstractQoreNode * | evalImpl (ExceptionSink *xsink) const |
| returns the value of the reference; caller owns any reference count returned for non-NULL return values | |
| virtual DLLEXPORT AbstractQoreNode * | evalImpl (bool &needs_deref, ExceptionSink *xsink) const |
| returns the value of the reference | |
| virtual DLLEXPORT double | floatEvalImpl (ExceptionSink *xsink) const |
| returns the value of the reference as a double | |
| virtual DLLEXPORT int | integerEvalImpl (ExceptionSink *xsink) const |
| returns the value of the reference as an int | |
| Protected Member Functions inherited from AbstractQoreNode | |
| virtual DLLEXPORT | ~AbstractQoreNode () |
| default destructor does nothing More... | |
Additional Inherited Members | |
| Protected 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 | |
| Protected Attributes inherited from QoreReferenceCounter | |
| QoreThreadLock | mRO |
| pthread lock to ensure atomicity of updates for architectures where we don't have an atomic increment and decrement implementation | |
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.
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virtual |
decrements the reference count
deletes the object when the reference count = 0. The ExceptionSink argument is needed for those types that could throw an exception when they are deleted (ex: QoreObject)
| xsink | if an error occurs, the Qore-language exception information will be added here |
Reimplemented from 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.
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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.
