 |
Qore Programming Language
0.9.16
|
|
Qore Programming Language
0.9.16
|
The main value class in Qore, designed to be passed by value. More...
#include <QoreValue.h>
Inherits QoreSimpleValue.
Public Member Methods | |
| DLLEXPORT | QoreValue () |
| creates with no value (i.e. QoreNothingNode) | |
| DLLEXPORT | QoreValue (AbstractQoreNode *n) |
| the QoreValue object takes the reference of the argument passed | |
| DLLEXPORT | QoreValue (bool b) |
| creates as a bool | |
| DLLEXPORT | QoreValue (const AbstractQoreNode *n) |
| creates as the given object; does not reference n for the assignment to this object More... | |
| DLLEXPORT | QoreValue (const QoreSimpleValue &v) |
| creates the value from the argument | |
| DLLEXPORT | QoreValue (const QoreValue &old) |
| copies the value, in case type == QV_Node, no additional references are made in this function | |
| DLLEXPORT | QoreValue (double f) |
| creates as a double | |
| DLLEXPORT | QoreValue (int i) |
| creates as an int | |
| DLLEXPORT | QoreValue (int64 i) |
| creates as an int | |
| DLLEXPORT | QoreValue (long i) |
| creates as an int | |
| DLLEXPORT | QoreValue (unsigned int i) |
| creates as an int | |
| DLLEXPORT | QoreValue (unsigned long i) |
| creates as an int | |
| DLLEXPORT | QoreValue (unsigned long long i) |
| creates as an int | |
| DLLEXPORT AbstractQoreNode * | assign (AbstractQoreNode *n) |
| the QoreValue object takes the reference of the argument More... | |
| DLLEXPORT AbstractQoreNode * | assign (bool n) |
| sets the value of the object and returns any node value held previously More... | |
| DLLEXPORT AbstractQoreNode * | assign (double n) |
| sets the value of the object and returns any node value held previously More... | |
| DLLEXPORT AbstractQoreNode * | assign (int64 n) |
| sets the value of the object and returns any node value held previously More... | |
| DLLEXPORT AbstractQoreNode * | assignAndSanitize (const QoreValue n) |
| sets the value of the object and returns any node value held previously More... | |
| DLLEXPORT AbstractQoreNode * | assignNothing () |
| sets the value of the object to QoreNothingNode and returns any node value held previously More... | |
| DLLEXPORT bool | derefCanThrowException () const |
| returns true if a dereference could theoretically throw an exception (an object is reachable from this value) | |
| DLLEXPORT void | discard (ExceptionSink *xsink) |
| dereferences any contained AbstractQoreNode pointer and sets to 0; does not modify other values | |
| DLLEXPORT QoreValue | eval (bool &needs_deref, ExceptionSink *xsink) const |
| evaluates the node and returns the result | |
| DLLEXPORT QoreValue | eval (ExceptionSink *xsink) const |
| evaluates the node and returns the result | |
| DLLEXPORT QoreString * | getAsString (bool &del, int foff, ExceptionSink *xsink) const |
| returns the string value with optional formatting of the contained node | |
| DLLEXPORT int | getAsString (QoreString &str, int format_offset, ExceptionSink *xsink) const |
| appends the string value of the contained node to the string argument with optional formatting | |
| const DLLEXPORT QoreTypeInfo * | getFullTypeInfo () const |
| returns the exact type of the value; i.e. the class type for classes, hashdecl type for hashdecls More... | |
| const DLLEXPORT char * | getFullTypeName () const |
returns a string type description of the full type of the value contained (ex: "nothing" for a null AbstractQoreNode pointer); differs from the return value of getTypeName() for complex types (ex: "hash<string, int>") | |
| const DLLEXPORT QoreTypeInfo * | getTypeInfo () const |
| returns the type of the value More... | |
| DLLEXPORT bool | hasNode () const |
| returns true if the object contains a non-null AbstractQoreNode pointer (ie type == QV_Node && v.n is not 0) | |
| DLLEXPORT bool | isEqualHard (const QoreValue v) const |
| returns trus if the argument value is equal to the current value without any type conversions | |
| DLLEXPORT bool | isEqualSoft (const QoreValue v, ExceptionSink *xsink) const |
| returns trus if the argument value is equal to the current value with type conversions | |
| DLLEXPORT bool | isEqualValue (const QoreValue v) |
| returns true of the argument is exactly the same value as the current value, meaning also that if both contain pointers, that the pointers contained are the same pointer | |
| DLLEXPORT bool | isReferenceCounted () const |
| returns true if the value holds a referenced-counted node | |
| DLLEXPORT QoreValue & | operator= (const QoreSimpleValue &n) |
| assigns a new value | |
| DLLEXPORT QoreValue & | operator= (const QoreValue &n) |
| assigns a new value | |
| DLLEXPORT void | ref () const |
| references the contained value if type == QV_Node | |
| DLLEXPORT QoreValue | refSelf () const |
| references the contained value if type == QV_Node, returns itself | |
| DLLEXPORT void | sanitize () |
| converts any node pointers to efficient representations if possible and dereferences the node value contained | |
| DLLEXPORT void | swap (QoreValue &val) |
| exchanges the values | |
| DLLEXPORT AbstractQoreNode * | takeIfNode () |
| returns a referenced value; leaving the "this" untouched; the caller owns the reference returned More... | |
Friends | |
| template<typename > | |
| struct | detail::QoreValueCastHelper |
| class | ValueHolder |
| class | ValueOptionalRefHolder |
The main value class in Qore, designed to be passed by value.
| DLLEXPORT QoreValue::QoreValue | ( | const AbstractQoreNode * | n | ) |
creates as the given object; does not reference n for the assignment to this object
sanitizes n (increases the reference of n if necessary), meaning that if possible, the value is converted to an immediate value in place (int, float, or bool)
if getType() == QV_Node after this assignment, then the node must be referenced for the assignment
| DLLEXPORT AbstractQoreNode* QoreValue::assign | ( | AbstractQoreNode * | n | ) |
the QoreValue object takes the reference of the argument
| n | the new node value of the object, sets type to QV_Node |
| DLLEXPORT AbstractQoreNode* QoreValue::assign | ( | bool | n | ) |
sets the value of the object and returns any node value held previously
| n | the new value of the object; sets type to QV_Bool |
| DLLEXPORT AbstractQoreNode* QoreValue::assign | ( | double | n | ) |
sets the value of the object and returns any node value held previously
| n | the new value of the object; sets type to QV_Float |
| DLLEXPORT AbstractQoreNode* QoreValue::assign | ( | int64 | n | ) |
sets the value of the object and returns any node value held previously
| n | the new value of the object; sets type to QV_Int |
| DLLEXPORT AbstractQoreNode* QoreValue::assignAndSanitize | ( | const QoreValue | n | ) |
sets the value of the object and returns any node value held previously
| n | the new value of the object |
| DLLEXPORT AbstractQoreNode* QoreValue::assignNothing | ( | ) |
sets the value of the object to QoreNothingNode and returns any node value held previously
sets type to QV_Node
| const DLLEXPORT QoreTypeInfo* QoreValue::getFullTypeInfo | ( | ) | const |
returns the exact type of the value; i.e. the class type for classes, hashdecl type for hashdecls
| const DLLEXPORT QoreTypeInfo* QoreValue::getTypeInfo | ( | ) | const |
returns the type of the value
| DLLEXPORT AbstractQoreNode* QoreValue::takeIfNode | ( | ) |
returns a referenced value; leaving the "this" untouched; the caller owns the reference returned
returns a referenced AbstractQoreNode pointer only if the contained value is an AbstractQoreNode pointer, in which case "this" is left empty (the value is taken from "this"); returns 0 if the object does not contain an AbstractQoreNode pointer (type != QV_Node)