Emptiness check for a relation. More...

#include <EmptinessCheck.h>

Inheritance diagram for souffle::ram::EmptinessCheck:

Collaboration diagram for souffle::ram::EmptinessCheck:

Public Member Functions
EmptinessCheck *	clone () const override
	Create a clone (i.e. More...

	EmptinessCheck (std::string rel)

const std::string &	getRelation () const
	Get relation. More...

Public Member Functions inherited from souffle::ram::Node
virtual void	apply (const NodeMapper &)
	Apply the mapper to all child nodes. More...

virtual std::vector< const Node * >	getChildNodes () const
	Obtain list of all embedded child nodes. More...

bool	operator!= (const Node &other) const
	Inequality check for two RAM nodes. More...

bool	operator== (const Node &other) const
	Equivalence check for two RAM nodes. More...

virtual void	rewrite (const Node *oldNode, Own< Node > newNode)
	Rewrite a child node. More...

virtual	~Node ()=default

Protected Member Functions
bool	equal (const Node &node) const override
	Equality check for two RAM nodes. More...

void	print (std::ostream &os) const override
	Print RAM node. More...

Protected Attributes
const std::string	relation
	Relation. More...

Detailed Description

Emptiness check for a relation.

Evaluates to true if the given relation is the empty set

For example:

(B = ∅)

Definition at line 53 of file EmptinessCheck.h.

Constructor & Destructor Documentation

◆ EmptinessCheck()

souffle::ram::EmptinessCheck::EmptinessCheck ( std::string rel )

inline

Definition at line 55 of file EmptinessCheck.h.

55 {

References relation.

Member Function Documentation

◆ clone()

EmptinessCheck* souffle::ram::EmptinessCheck::clone ( ) const

inlineoverridevirtual

Create a clone (i.e.

deep copy) of this node

Implements souffle::ram::Condition.

Definition at line 62 of file EmptinessCheck.h.

64 {

◆ equal()

bool souffle::ram::EmptinessCheck::equal ( const Node & ) const

inlineoverrideprotectedvirtual

Equality check for two RAM nodes.

Default action is that nothing needs to be checked.

Reimplemented from souffle::ram::Node.

Definition at line 71 of file EmptinessCheck.h.

◆ getRelation()

const std::string& souffle::ram::EmptinessCheck::getRelation ( ) const

inline

Get relation.

Definition at line 58 of file EmptinessCheck.h.

59 :

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

References relation.

◆ print()

void souffle::ram::EmptinessCheck::print ( std::ostream & out ) const

inlineoverrideprotectedvirtual

Print RAM node.

Implements souffle::ram::Node.

Definition at line 67 of file EmptinessCheck.h.

Field Documentation

◆ relation

const std::string souffle::ram::EmptinessCheck::relation

protected

Relation.

Definition at line 77 of file EmptinessCheck.h.

Referenced by EmptinessCheck(), and getRelation().

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

ram/EmptinessCheck.h

Public Member Functions

Protected Member Functions

Protected Attributes