com.oracle.truffle.api.nodes

Interface RepeatingNode

All Superinterfaces:

NodeInterface

public interface RepeatingNode
extends NodeInterface

A node that is repeatedly invoked as part of a Truffle loop control structure. Repeating nodes must extend Node or a subclass of Node. Repeating nodes are intended to be implemented by guest language implementations. For a full usage example please see LoopNode.

Since:

0.8 or earlier

See Also:

LoopNode, TruffleRuntime.createLoopNode(RepeatingNode)

Method Summary

Modifier and Type	Method and Description
boolean	executeRepeating(VirtualFrame frame) Repeatedly invoked by a loop node implementation until the method returns false or throws an exception.

Method Detail

executeRepeating

boolean executeRepeating(VirtualFrame frame)

Repeatedly invoked by a loop node implementation until the method returns false or throws an exception.

Parameters:

frame - the current execution frame passed through the interpreter

Returns:

true if the method should be executed again to complete the loop and false if it must not.

Since:

0.8 or earlier