Class implementing an infix expression. More...

#include <ExpressionParser.h>

Public Types
enum	Operator { NONE, ADD, SUB, MUL, DIV, MOD, POW, EQ, NEQ, LT, GT, LTE, GTE, UNIT, NEG, POS }

Public Types inherited from App::Expression
typedef std::vector< Component * >	ComponentList

Public Member Functions
Expression *	getLeft () const

Operator	getOperator () const

Expression *	getRight () const

virtual bool	isTouched () const override
	Determine whether the expression is touched or not, i.e relies on properties that are touched. More...

	OperatorExpression (const App::DocumentObject _owner=0, Expression _left=0, Operator _op=NONE, Expression *_right=0)

virtual int	priority () const override
	Return the operators priority. More...

virtual Expression *	simplify () const override
	Simplify the expression. More...

virtual	~OperatorExpression ()

Public Member Functions inherited from App::UnitExpression
const Base::Quantity &	getQuantity () const

double	getScaler () const

const Base::Unit &	getUnit () const

const std::string	getUnitString () const

double	getValue () const

void	setQuantity (const Base::Quantity &_quantity)

void	setUnit (const Base::Quantity &_quantity)
	Set unit information. More...

	UnitExpression (const App::DocumentObject *_owner=0, const Base::Quantity &_quantity=Base::Quantity(), const std::string &_unitStr=std::string())

	~UnitExpression ()

Public Member Functions inherited from App::Expression
virtual void	addComponent (Component *component)

bool	adjustLinks (const std::set< App::DocumentObject * > &inList)

Expression *	copy () const

Expression *	eval () const

	Expression (const App::DocumentObject *_owner)

void	getDepObjects (std::set< App::DocumentObject * > &, std::vector< std::string > *labels=0) const

std::set< App::DocumentObject * >	getDepObjects (std::vector< std::string > *labels=0) const

ExpressionDeps	getDeps () const

void	getDeps (ExpressionDeps &deps) const

std::set< App::ObjectIdentifier >	getIdentifiers () const

void	getIdentifiers (std::set< App::ObjectIdentifier > &) const

App::DocumentObject *	getOwner () const

Py::Object	getPyValue () const

boost::any	getValueAsAny () const

bool	hasComponent () const

ExpressionPtr	importSubNames (const std::map< std::string, std::string > &nameMap) const

bool	isSame (const Expression &other) const

ExpressionPtr	replaceObject (const App::DocumentObject parent, App::DocumentObject oldObj, App::DocumentObject *newObj) const

std::string	toString (bool persistent=false, bool checkPriority=false, int indent=0) const

void	toString (std::ostream &os, bool persistent=false, bool checkPriority=false, int indent=0) const

ExpressionPtr	updateLabelReference (App::DocumentObject obj, const std::string &ref, const char newLabel) const

void	visit (ExpressionVisitor &v)

virtual	~Expression ()

Public Member Functions inherited from Base::BaseClass
	BaseClass ()
	Construction. More...

virtual PyObject *	getPyObject (void)
	This method returns the Python wrapper for a C++ object. More...

virtual Type	getTypeId (void) const

bool	isDerivedFrom (const Type type) const

virtual void	setPyObject (PyObject *)

virtual	~BaseClass ()
	Destruction. More...

Protected Member Functions
virtual bool	isCommutative () const

virtual bool	isLeftAssociative () const

virtual bool	isRightAssociative () const

Protected Attributes
Expression *	left
	Left operand. More...

Operator	op
	Operator working on left and right. More...

Expression *	right
	Right operand. More...

Protected Attributes inherited from App::UnitExpression
PyObject *	cache = 0

Protected Attributes inherited from App::Expression
ComponentList	components

App::DocumentObject *	owner
	The document object used to access unqualified variables (i.e local scope) More...

Additional Inherited Members
Static Public Member Functions inherited from App::Expression
static Component *	createComponent (const std::string &n)

static Component *	createComponent (Expression e1, Expression e2=0, Expression *e3=0, bool isRange=false)

static Expression *	parse (const App::DocumentObject *owner, const std::string &buffer)

Static Public Member Functions inherited from Base::BaseClass
static void *	create (void)

static Type	getClassTypeId (void)

static void	init (void)

Public Attributes inherited from App::Expression
std::string	comment

friend	ExpressionVisitor

Static Protected Member Functions inherited from Base::BaseClass
static void	initSubclass (Base::Type &toInit, const char ClassName, const char ParentName, Type::instantiationMethod method=nullptr)

Detailed Description

Class implementing an infix expression.

Member Enumeration Documentation

◆ Operator

enum App::OperatorExpression::Operator

Enumerator
NONE
ADD
SUB
MUL
DIV
MOD
POW
EQ
NEQ
LT
GT
LTE
GTE
UNIT
NEG
POS

Constructor & Destructor Documentation

◆ OperatorExpression()

OperatorExpression::OperatorExpression	(	const App::DocumentObject *	_owner = `0`,
		Expression *	_left = `0`,
		Operator	_op = `NONE`,
		Expression *	_right = `0`
	)

◆ ~OperatorExpression()

OperatorExpression::~OperatorExpression ( )

virtual

Member Function Documentation

◆ getLeft()

Expression* App::OperatorExpression::getLeft ( ) const

Referenced by App::ExpressionParser::parseUnit().

◆ getOperator()

Operator App::OperatorExpression::getOperator ( ) const

Referenced by App::ExpressionParser::parseUnit().

◆ getRight()

Expression* App::OperatorExpression::getRight ( ) const

Referenced by App::ExpressionParser::parseUnit().

◆ isCommutative()

bool OperatorExpression::isCommutative ( ) const

protectedvirtual

◆ isLeftAssociative()

bool OperatorExpression::isLeftAssociative ( ) const

protectedvirtual

◆ isRightAssociative()

bool OperatorExpression::isRightAssociative ( ) const

protectedvirtual

◆ isTouched()

bool OperatorExpression::isTouched ( ) const

overridevirtual

Determine whether the expression is touched or not, i.e relies on properties that are touched.

Reimplemented from App::Expression.

◆ priority()

int OperatorExpression::priority ( ) const

overridevirtual

Return the operators priority.

This is used to add parentheses where needed when creating a string representation of the expression.

Returns: The operator's priority.

Reimplemented from App::Expression.

◆ simplify()

Expression * OperatorExpression::simplify ( ) const

overridevirtual

Simplify the expression.

For OperatorExpressions, we return a NumberExpression if both the left and right side can be simplified to NumberExpressions. In this case we can calculate the final value of the expression.

Returns: Simplified expression.

Reimplemented from App::UnitExpression.

References App::Expression::eval(), App::Expression::owner, and App::Expression::simplify().

Member Data Documentation

◆ left

Expression* App::OperatorExpression::left

protected

Left operand.

◆ op

Operator App::OperatorExpression::op

protected

Operator working on left and right.

◆ right

Expression* App::OperatorExpression::right

protected

Right operand.

The documentation for this class was generated from the following files:

src/App/ExpressionParser.h
src/App/Expression.cpp

Public Types

Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Enumeration Documentation

◆ Operator

Constructor & Destructor Documentation

◆ OperatorExpression()

◆ ~OperatorExpression()

Member Function Documentation

◆ getLeft()

◆ getOperator()

◆ getRight()

◆ isCommutative()

◆ isLeftAssociative()

◆ isRightAssociative()

◆ isTouched()

◆ priority()

◆ simplify()

Member Data Documentation

◆ left

◆ op

◆ right