Node Class Reference

A basis class for PHP structure tree. More...

#include <streenode.h>

Inheritance diagram for Node:


Public Types
typedef set< int >	VariableList
	A list of variables.
Public Member Functions
	Node (const string &icomment, const int ilineno=0)
	Constructor.
	Node ()
	Constructor.
virtual	~Node ()
	Destrys the node and frees memory.
virtual SType	getType () const=0
	Returns type of the node.
virtual string	getName () const=0
	Returs string representing node type or name for List.
virtual ostream &	print (ostream &os) const=0
	Writes node to the stream.
virtual ostream &	php (ostream &os) const=0
	Writes node to the stream as php.
virtual bool	match (const Node *p, Assignment &assign, const NameSpace &nameSpace) const=0
	Matches node p to the node. If node matches sets the assignment.
virtual bool	matchToBegining (const List *p, Assignment &assign, const NameSpace &nameSpace) const=0
	Matches the list to the begining of p.
virtual bool	compare (const Node *p) const=0
	Comares node p to the node.
virtual Node *	copy () const=0
	Copies the node.
virtual void	getVariables (VariableList &vlist) const=0
	Returns list of variables used in the node.
string	toString () const
	Returns the string representing the node.
virtual Node *	push_back (Node *statement)
	Correct only for lists.
virtual Node *	transform (const Transformer *transformer)
	Applies Transformer to every node in the tree.
virtual bool	forall (const Tester *tester, const NameSpace &nameSpace) const
	Returns true is for all nodes in the.
virtual bool	exists (const Tester *tester, const NameSpace &nameSpace) const
	Applies Transformer to every node in the tree.
virtual string	evaluate (const NameSpace &nameSpace) const=0
	Computes the value of the expression (only basic atihmetic and string operations).
virtual int	getLength () const
	Returns teh length of the list -- valid only for List and ContextMatch.
Protected Member Functions
virtual Node *	substitute (const Assignment &assign)=0
	Substitutes variables in the node accordingly to the given assignment.
Protected Attributes
Location	location
	The location of the node -- not used.
Friends
ostream &	operator<< (ostream &os, const Assignment &data)
	Writes assignment to stream.
ostream &	operator<< (ostream &os, const Node *data)
	Writes the node to the stream by using Node::php.
void	substituteNode (Node *&node, const Assignment &assign)
	Substitutes variables in the node accordingly to the given assignment.

Detailed Description

A basis class for PHP structure tree.

Definition at line 28 of file streenode.h.

Member Typedef Documentation

typedef set<int> Node::VariableList

A list of variables.

Definition at line 64 of file streenode.h.
Referenced by RuleContext::assignVariableNames().

Constructor & Destructor Documentation

Node::Node ( const string & icomment,

const int ilineno = 0

) [inline]

Constructor.

Definition at line 70 of file streenode.h.
References location.

Node::Node ( ) [inline]

Constructor.

Definition at line 73 of file streenode.h.
References location.

virtual Node::~Node ( ) [inline, virtual]

Destrys the node and frees memory.

Definition at line 76 of file streenode.h.

Member Function Documentation

virtual bool Node::compare ( const Node * p ) const [pure virtual]

Comares node p to the node.

Implemented in ContextMatch, AttributeValue, Constant, List, Pin, and Variable.
Referenced by ContextMatch::compare().

virtual Node* Node::copy ( ) const [pure virtual]

Copies the node.

Implemented in ContextMatch, AttributeValue, StatementList, InlineHTMLList, TemplateList, ExpressionList, ArrayPairList, DeclareList, CaseList, EncapsList, AssignmentList, PHP, EchoPHP, CurlyBraces, SmartyBraces, DoubleQuote, If, For, While, Do, Switch, Break, Continue, Return, Global, Static, Echo, Template, SmartyAssign, InlineHTML, Expression, Unset, Use, Foreach, Declare, EmptyStatement, Function, Class, Const, Case, Parameter, ClassVariable, UnaryOperator, PostUnaryOperator, BinaryOperator, AList, EncapsExpr, AskOperator, Exit, Print, Array, FunctionCall, ArrayPair, ObjectOperator, ArrayOperator, MapOperator, Isset, ConstantEncapsedString, ConstantString, PHPVariable, Constant, List, Nullary, Unary, Binary, Ternary, Quadary, Pin, and Variable.
Referenced by LocalAttributeIsequalTester::copy(), AttributeIsequalTester::copy(), TypeTester::copy(), NameTester::copy(), ActionSet::copy(), ActionWrite::copy(), AttributeValue::copy(), ContextMatch::copy(), Variable::match(), and Variable::substitute().

virtual string Node::evaluate ( const NameSpace & nameSpace ) const [pure virtual]

Computes the value of the expression (only basic atihmetic and string operations).

Implemented in ContextMatch, AttributeValue, EncapsList, DoubleQuote, UnaryOperator, PostUnaryOperator, BinaryOperator, EncapsExpr, AskOperator, ConstantEncapsedString, ConstantString, Constant, List, Pin, and Variable.
Referenced by ConstantString::evaluate(), ConstantEncapsedString::evaluate(), AskOperator::evaluate(), EncapsExpr::evaluate(), BinaryOperator::evaluate(), UnaryOperator::evaluate(), DoubleQuote::evaluate(), ContextMatch::evaluate(), ActionSet::execute(), and ActionWrite::execute().

bool Node::exists ( const Tester * tester,

const NameSpace & nameSpace

) const [virtual]

Applies Transformer to every node in the tree.

Reimplemented in List.
Definition at line 37 of file streenode.cpp.
References Node::Tester::test().
Referenced by ExistsTester::test().

bool Node::forall ( const Tester * tester,

const NameSpace & nameSpace

) const [virtual]

Returns true is for all nodes in the.

Reimplemented in List.
Definition at line 33 of file streenode.cpp.
References Node::Tester::test().
Referenced by ForallTester::test().

int Node::getLength ( ) const [virtual]

Returns teh length of the list -- valid only for List and ContextMatch.

Reimplemented in ContextMatch, and List.
Definition at line 41 of file streenode.cpp.
Referenced by ContextMatch::getLength().

virtual string Node::getName ( ) const [pure virtual]

Returs string representing node type or name for List.

Implemented in ContextMatch, AttributeValue, Constant, List, Pin, and Variable.
Referenced by RuleContext::execute(), MultiContextRule::generateSubcontext(), ContextMatch::getName(), TypeTester::test(), TPLConstantNormalizer::transform(), HTMLBox::Replacer::transform(), and HTMLBox::Putter::transform().

virtual SType Node::getType ( ) const [pure virtual]

Returns type of the node.

Implemented in ContextMatch, AttributeValue, Constant, List, Pin, and Variable.
Referenced by Variable::compare(), Pin::compare(), List::compare(), Constant::compare(), ContextMatch::getType(), List::match(), ArrayPair::php(), FunctionCall::php(), Parameter::php(), Case::php(), Class::php(), Foreach::php(), and If::php().

virtual void Node::getVariables ( VariableList & vlist ) const [pure virtual]

Returns list of variables used in the node.

Implemented in ContextMatch, AttributeValue, Constant, List, Pin, and Variable.
Referenced by ContextMatch::getVariables().

virtual bool Node::match ( const Node * p,

Assignment & assign,

const NameSpace & nameSpace

) const [pure virtual]

Matches node p to the node. If node matches sets the assignment.

Implemented in ContextMatch, AttributeValue, Constant, List, Pin, and Variable.
Referenced by ContextMatch::match().

virtual bool Node::matchToBegining ( const List * p,

Assignment & assign,

const NameSpace & nameSpace

) const [pure virtual]

Matches the list to the begining of p.

Implemented in ContextMatch, AttributeValue, Constant, List, Pin, and Variable.
Referenced by ContextMatch::matchToBegining().

virtual ostream& Node::php ( ostream & os ) const [pure virtual]

Writes node to the stream as php.

Implemented in ContextMatch, AttributeValue, StatementList, InlineHTMLList, TemplateList, ExpressionList, ArrayPairList, DeclareList, CaseList, EncapsList, AssignmentList, PHP, EchoPHP, CurlyBraces, SmartyBraces, DoubleQuote, If, For, While, Do, Switch, Break, Continue, Return, Global, Static, Echo, Template, SmartyAssign, InlineHTML, Expression, Unset, Use, Foreach, Declare, EmptyStatement, Function, Class, Const, Case, Parameter, ClassVariable, UnaryOperator, PostUnaryOperator, BinaryOperator, AList, EncapsExpr, AskOperator, Exit, Print, Array, FunctionCall, ArrayPair, ObjectOperator, ArrayOperator, MapOperator, Isset, ConstantEncapsedString, ConstantString, PHPVariable, Constant, List, Nullary, Unary, Binary, Ternary, Quadary, Pin, and Variable.
Referenced by operator<<(), and ContextMatch::php().

virtual ostream& Node::print ( ostream & os ) const [pure virtual]

Writes node to the stream.

Implemented in ContextMatch, AttributeValue, Constant, List, Pin, and Variable.
Referenced by AttributeValue::print(), and ContextMatch::print().

Node * Node::push_back ( Node * statement ) [virtual]

Correct only for lists.

Reimplemented in List.
Definition at line 25 of file streenode.cpp.

virtual Node* Node::substitute ( const Assignment & assign ) [protected, pure virtual]

Substitutes variables in the node accordingly to the given assignment.

Implemented in ContextMatch, AttributeValue, Constant, List, Pin, and Variable.
Referenced by substituteNode().

string Node::toString ( ) const

Returns the string representing the node.

Definition at line 18 of file streenode.cpp.
Referenced by EncapsList::evaluate(), AttributeValue::evaluate(), NamedContextRule::execute(), ActionSet::execute(), RuleContext::executeOnPHPList(), LocalAttributeIsequalTester::test(), AttributeIsequalTester::test(), AttributeIssetTester::test(), TypeTester::test(), and NameTester::test().

Node * Node::transform ( const Transformer * transformer ) [virtual]

Applies Transformer to every node in the tree.

Reimplemented in List.
Definition at line 29 of file streenode.cpp.
References Node::Transformer::transform().
Referenced by TransformerSet::apply(), and List::transform().

Friends And Related Function Documentation

ostream& operator<< ( ostream & os,

const Node * data

) [friend]

Writes the node to the stream by using Node::php.

Definition at line 14 of file streenode.cpp.

ostream& operator<< ( ostream & os,

const Assignment & data

) [friend]

Writes assignment to stream.

Definition at line 4 of file streenode.cpp.

void substituteNode ( Node *& node,

const Assignment & assign

) [friend]

Substitutes variables in the node accordingly to the given assignment.

Definition at line 45 of file streenode.cpp.
Referenced by List::substitute(), AttributeValue::substitute(), and ContextMatch::substitute().

Field Documentation

Location Node::location [protected]

The location of the node -- not used.

Definition at line 32 of file streenode.h.
Referenced by Node().

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

Generated on Fri Nov 21 17:54:08 2003 for PHPX by

1.3.3

Node Class Reference

Public Types

Public Member Functions

Protected Member Functions