Package org.objectweb.asm

Class Edge

java.lang.Object

org.objectweb.asm.Edge

final class Edge
extends Object

An edge in the control flow graph of a method. Each node of this graph is a basic block, represented with the Label corresponding to its first instruction. Each edge goes from one node to another, i.e. from one basic block to another (called the predecessor and successor blocks, respectively). An edge corresponds either to a jump or ret instruction. Exception handlers are not represented with explicit edges.

See Also:

• Label

Field Summary

Fields

Modifier and Type	Field	Description
(package private) Edge	nextEdge	The next edge in the list of outgoing edges of a basic block.
(package private) final int	stackSizeDelta	The stack size at the end of the predecessor block, minus the stack size at its beginning.
(package private) final Label	successor	The successor block of this control flow graph edge.

Constructor Summary

Constructors

Constructor	Description
Edge(int stackSizeDelta, Label successor, Edge nextEdge)	Constructs a new Edge.

Method Summary

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

stackSizeDelta

final int stackSizeDelta

The stack size at the end of the predecessor block, minus the stack size at its beginning. This field is only used with ClassWriter.COMPUTE_MAXS.

successor

final Label successor

The successor block of this control flow graph edge.

nextEdge

Edge nextEdge

The next edge in the list of outgoing edges of a basic block. See Label.outgoingEdges.

Constructor Details

Edge

Edge(int stackSizeDelta,
 Label successor,
 Edge nextEdge)

Constructs a new Edge.

Parameters:

stackSizeDelta - see stackSizeDelta.

successor - see successor.

nextEdge - see nextEdge.