souffle::ast::Negation Class Reference

Negation of an atom negated atom. More...

#include <Negation.h>

Inheritance diagram for souffle::ast::Negation:

Collaboration diagram for souffle::ast::Negation:

Public Member Functions
void	apply (const NodeMapper &map) override
	Apply the mapper to all child nodes. More...
Negation *	clone () const override
	Create a clone (i.e. More...
Atom *	getAtom () const
	Get negated atom. More...
std::vector< const Node * >	getChildNodes () const override
	Obtain a list of all embedded AST child nodes. More...
	Negation (Own< Atom > atom, SrcLocation loc={})
Public Member Functions inherited from souffle::ast::Literal
	Node (SrcLocation loc={})
Public Member Functions inherited from souffle::ast::Node
std::string	extloc () const
	Return source location of the syntactic element. More...
const SrcLocation &	getSrcLoc () const
	Return source location of the Node. More...
	Node (SrcLocation loc={})
bool	operator!= (const Node &other) const
	Inequality check for two AST nodes. More...
bool	operator== (const Node &other) const
	Equivalence check for two AST nodes. More...
void	setSrcLoc (SrcLocation l)
	Set source location for the Node. More...
virtual	~Node ()=default

Protected Member Functions
bool	equal (const Node &node) const override
	Abstract equality check for two AST nodes. More...
void	print (std::ostream &os) const override
	Output to a given output stream. More...

Protected Attributes
Own< Atom >	atom
	Negated atom. More...

Detailed Description

Negation of an atom negated atom.

Example: !parent(x,y).

A negated atom can only occur in the body of a clause.

Definition at line 50 of file Negation.h.

Constructor & Destructor Documentation

Negation()

souffle::ast::Negation::Negation ( Own< Atom >  atom, SrcLocation  loc = {}  )

inline

Definition at line 52 of file Negation.h.

{

References atom, souffle::clone(), and souffle::ast::Node::getSrcLoc().

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Member Function Documentation

apply()

void souffle::ast::Negation::apply ( const NodeMapper &  )

inlineoverridevirtual

Apply the mapper to all child nodes.

Reimplemented from souffle::ast::Node.

Definition at line 63 of file Negation.h.

         :
    void print(std::ostream& os) const override {

clone()

Negation* souffle::ast::Negation::clone ( ) const

inlineoverridevirtual

Create a clone (i.e.

deep copy) of this node

Implements souffle::ast::Literal.

Reimplemented in souffle::ast::ProvenanceNegation.

Definition at line 59 of file Negation.h.

                                                          {

equal()

bool souffle::ast::Negation::equal ( const Node &  ) const

inlineoverrideprotectedvirtual

Abstract equality check for two AST nodes.

Reimplemented from souffle::ast::Node.

Definition at line 76 of file Negation.h.

getAtom()

Atom* souffle::ast::Negation::getAtom ( ) const

inline

Get negated atom.

Definition at line 55 of file Negation.h.

                                               {

getChildNodes()

std::vector<const Node*> souffle::ast::Negation::getChildNodes ( ) const

inlineoverridevirtual

Obtain a list of all embedded AST child nodes.

Reimplemented from souffle::ast::Node.

Definition at line 67 of file Negation.h.

                                                {

print()

void souffle::ast::Negation::print ( std::ostream &  os ) const

inlineoverrideprotectedvirtual

Output to a given output stream.

Implements souffle::ast::Node.

Reimplemented in souffle::ast::ProvenanceNegation.

Definition at line 72 of file Negation.h.

Field Documentation

atom

Own<Atom> souffle::ast::Negation::atom

protected

Negated atom.

Definition at line 83 of file Negation.h.

Referenced by Negation().

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

• ast/Negation.h