net.sandius.rembulan.impl

Class DefaultSavedState

java.lang.Object

net.sandius.rembulan.impl.DefaultSavedState

public class DefaultSavedState
extends Object

A generic, immutable implementation of the suspended state of a function call, used primarily by compiled Lua functions.

The class provides a uniform structured representation of the saved state consisting of

• a resumption point, an integer value, used to select the appropriate continuation point;
• the register state, a sequence of arbitrary objects, typically used to restore the local variables of the call.

The exact meaning of the values stored in these fields is left to the discretion of the class instantiating this object.

Constructor Summary

Constructors

Constructor and Description
DefaultSavedState(int resumptionPoint, Object[] registers) Constructs a new instance of DefaultSavedState with the specified resumptionPoint and registers.

Method Summary

Modifier and Type	Method and Description
Object[]	registers() Returns a copy of the register state stored in this saved state, or null if the register state array stored in this saved state was null.
int	resumptionPoint() Returns the resumption point stored in this saved state.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultSavedState

public DefaultSavedState(int resumptionPoint,
                         Object[] registers)

Constructs a new instance of DefaultSavedState with the specified resumptionPoint and registers.

Parameters:

resumptionPoint - the resumption point

registers - the registers, may be null

Method Detail

resumptionPoint

public int resumptionPoint()

Returns the resumption point stored in this saved state.

Returns:

the resumption point

registers

public Object[] registers()

Returns a copy of the register state stored in this saved state, or null if the register state array stored in this saved state was null.

Returns:

the registers stored in this saved state, possibly null