cpg-core/de.fraunhofer.aisec.cpg.graph.edges/Edge

Edge

abstract class Edge<NodeType : Node> : Persistable, Cloneable

This class represents an edge between two Node objects in a Neo4J graph. It can be used to store additional information that relate to the relationship between the two nodes that belong to neither of the two nodes directly.

An example would be the name (in this case a) of an argument between a CallExpression (foo) and its argument (a Literal of 2) in languages that support keyword arguments, such as Python:

foo("bar", a = 2)

Inheritors

Constructors

Edge

constructor(start: Node, end: NodeType)

constructor(edge: Edge<NodeType>)

Types

Companion

object Companion

Delegate

inner class Delegate<ThisType : Node>

Properties

dependence

var dependence: DependenceType?

The type of dependence (e.g. control or data or none). This field is intentionally nullable, because not all Edge edges are selected in the PDG. This selection is performed in the ProgramDependenceGraphPass.

end

var end: NodeType

index

var index: Int?

The index of this node, if it is stored in an de.fraunhofer.aisec.cpg.graph.edges.collections.EdgeList.

labels

abstract var labels: Set<String>

name

var name: String?

An optional name.

start

var start: Node