Class to traverse the abstract syntax tree produced by the parsing of a properly-formed string in the Arithmetic expression language. Produces an Expression tree capable of performing arithmetic. Connects the "variable" nodes in this tree to the owning WrapperOptEMultifunc so that their values can be retrieved during expression evaluation inside the WrapperOptEMultifunc functor. More...

#include <Arithmetic.hh>

Public Member Functions
	ExpressionCreator ()

	~ExpressionCreator ()

virtual void	visit (ArithmeticASTExpression const &)

virtual void	visit (ArithmeticASTFunction const &)

virtual void	visit (ArithmeticASTTerm const &)

virtual void	visit (ArithmeticASTFactor const &)

virtual void	visit (ArithmeticASTValue const &)

virtual void	visit (ArithmeticASTRestTerm const &)

virtual void	visit (ArithmeticASTRestExpression const &)

virtual void	visit (ArithmeticASTNode const &)

ExpressionCOP	create_expression_tree (ArithmeticASTExpression const &)

virtual ExpressionCOP	handle_variable_expression (ArithmeticASTValue const &)
	Factory method to be implemented by derived classes which may wish to handle variable expressions in a specific manner. More...

virtual ExpressionCOP	handle_function_expression (FunctionTokenCOP function, utility::vector1< ExpressionCOP > const &args)
	Factory method to be implemented by derived classes which may wish to handle function expressions in a specific manner. More...

Public Member Functions inherited from numeric::expression_parser::ASTVisitor
virtual	~ASTVisitor ()
	Automatically generated virtual destructor for class deriving directly from ReferenceCount. More...

Public Member Functions inherited from utility::pointer::ReferenceCount
void	ctor ()

virtual	~ReferenceCount ()
	Destructor. More...

Size	ref_count () const
	Reference count. More...

Private Attributes
ExpressionCOP	last_constructed_expression_

ExpressionCOP	semi_constructed_expression_

Additional Inherited Members
Public Types inherited from utility::pointer::ReferenceCount
typedef platform::Size	Size

typedef platform::Size	size_type

Protected Member Functions inherited from utility::pointer::ReferenceCount
	ReferenceCount ()
	Default constructor. More...

	ReferenceCount (ReferenceCount const &)
	Copy constructor. More...

ReferenceCount &	operator= (ReferenceCount const &)
	Copy assignment. More...

Detailed Description

Class to traverse the abstract syntax tree produced by the parsing of a properly-formed string in the Arithmetic expression language. Produces an Expression tree capable of performing arithmetic. Connects the "variable" nodes in this tree to the owning WrapperOptEMultifunc so that their values can be retrieved during expression evaluation inside the WrapperOptEMultifunc functor.

Constructor & Destructor Documentation

numeric::expression_parser::ExpressionCreator::ExpressionCreator ( )

numeric::expression_parser::ExpressionCreator::~ExpressionCreator ( )

Member Function Documentation

ExpressionCOP numeric::expression_parser::ExpressionCreator::create_expression_tree ( ArithmeticASTExpression const & expr )

References last_constructed_expression_, semi_constructed_expression_, and visit().

Referenced by numeric::expression_parser::parse_string_to_boolean_expression(), and numeric::expression_parser::parse_string_to_expression().

ExpressionCOP numeric::expression_parser::ExpressionCreator::handle_function_expression	(	FunctionTokenCOP	function,
		utility::vector1< ExpressionCOP > const &	args
	)

virtual

Factory method to be implemented by derived classes which may wish to handle function expressions in a specific manner.

Reimplemented in numeric::expression_parser::BooleanExpressionCreator.

References utility::to_string(), and utility_exit_with_message.

Referenced by numeric::expression_parser::BooleanExpressionCreator::handle_function_expression(), and visit().

ExpressionCOP numeric::expression_parser::ExpressionCreator::handle_variable_expression ( ArithmeticASTValue const & )

virtual

Factory method to be implemented by derived classes which may wish to handle variable expressions in a specific manner.

Factory method to be implemented by derived classes which may wish to handle variable expressions differently.

Reimplemented in numeric::expression_parser::SimpleExpressionCreator.

References utility_exit_with_message.

Referenced by visit().

void numeric::expression_parser::ExpressionCreator::visit ( ArithmeticASTExpression const & node )

virtual

Implements numeric::expression_parser::ASTVisitor.

References numeric::expression_parser::ArithmeticASTExpression::children_begin(), numeric::expression_parser::ArithmeticASTExpression::children_end(), last_constructed_expression_, semi_constructed_expression_, utility::to_string(), and utility_exit_with_message.

Referenced by create_expression_tree().

void numeric::expression_parser::ExpressionCreator::visit ( ArithmeticASTFunction const & node )

virtual

Implements numeric::expression_parser::ASTVisitor.

References numeric::expression_parser::ArithmeticASTFunction::children_begin(), numeric::expression_parser::ArithmeticASTFunction::children_end(), numeric::expression_parser::ArithmeticASTFunction::function(), handle_function_expression(), last_constructed_expression_, utility::to_string(), and utility_exit_with_message.

void numeric::expression_parser::ExpressionCreator::visit ( ArithmeticASTTerm const & node )

virtual

Implements numeric::expression_parser::ASTVisitor.

References numeric::expression_parser::ArithmeticASTTerm::children_begin(), numeric::expression_parser::ArithmeticASTTerm::children_end(), last_constructed_expression_, semi_constructed_expression_, utility::to_string(), and utility_exit_with_message.

void numeric::expression_parser::ExpressionCreator::visit ( ArithmeticASTFactor const & node )

virtual

Implements numeric::expression_parser::ASTVisitor.

References numeric::expression_parser::ArithmeticASTFactor::child().

void numeric::expression_parser::ExpressionCreator::visit ( ArithmeticASTValue const & node )

virtual

Implements numeric::expression_parser::ASTVisitor.

References handle_variable_expression(), numeric::expression_parser::ArithmeticASTValue::is_literal(), last_constructed_expression_, and numeric::expression_parser::ArithmeticASTValue::literal_value().

void numeric::expression_parser::ExpressionCreator::visit ( ArithmeticASTRestTerm const & node )

virtual

Implements numeric::expression_parser::ASTVisitor.

References numeric::expression_parser::ArithmeticASTRestTerm::children_begin(), numeric::expression_parser::ArithmeticASTRestTerm::children_end(), numeric::expression_parser::DIVIDE_SYMBOL, last_constructed_expression_, numeric::expression_parser::MULTIPLY_SYMBOL, numeric::expression_parser::ArithmeticASTRestTerm::rest_term_token(), semi_constructed_expression_, utility::to_string(), numeric::expression_parser::token_type_name(), and utility_exit_with_message.

void numeric::expression_parser::ExpressionCreator::visit ( ArithmeticASTRestExpression const & node )

virtual

Implements numeric::expression_parser::ASTVisitor.

References numeric::expression_parser::ArithmeticASTRestExpression::children_begin(), numeric::expression_parser::ArithmeticASTRestExpression::children_end(), last_constructed_expression_, numeric::expression_parser::PLUS_SYMBOL, numeric::expression_parser::ArithmeticASTRestExpression::rest_expression_token(), semi_constructed_expression_, numeric::expression_parser::SUBTRACT_SYMBOL, utility::to_string(), numeric::expression_parser::token_type_name(), and utility_exit_with_message.

void numeric::expression_parser::ExpressionCreator::visit ( ArithmeticASTNode const & )

virtual

Implements numeric::expression_parser::ASTVisitor.

References utility_exit_with_message.

Member Data Documentation

ExpressionCOP numeric::expression_parser::ExpressionCreator::last_constructed_expression_

private

Created inside a traversal of the AST – return expression trees using this variable, and keep living trees alive by storing them on the stack during the AST recursive traversal.

Referenced by create_expression_tree(), and visit().

ExpressionCOP numeric::expression_parser::ExpressionCreator::semi_constructed_expression_

private

Referenced by create_expression_tree(), and visit().

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

symlinks/rosetta/src/numeric/expression_parser/Arithmetic.hh
symlinks/rosetta/src/numeric/expression_parser/Arithmetic.cc

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation