gnu.prolog.vm.interpreter.instruction
Class IPushArgument

java.lang.Object
  gnu.prolog.vm.interpreter.instruction.Instruction
      gnu.prolog.vm.interpreter.instruction.IPushArgument

All Implemented Interfaces:

Installable

public class IPushArgument
extends Instruction

push argument of execution state

Field Summary

int	argumentPosition position of term in environment

Fields inherited from class gnu.prolog.vm.interpreter.instruction.Instruction

codePosition

Constructor Summary

IPushArgument(int argumentPosition)
a constructor

Method Summary

int	execute(ExecutionState state, BacktrackInfo bi) execute call instruction within specified sate
String	toString() convert instruction to string

Methods inherited from class gnu.prolog.vm.interpreter.instruction.Instruction

install, uninstall

Methods inherited from class java.lang.Object

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

Field Detail

argumentPosition

public int argumentPosition

position of term in environment

Constructor Detail

IPushArgument

public IPushArgument(int argumentPosition)

a constructor

Parameters:

argumentPosition -

Method Detail

execute

public int execute(ExecutionState state,
                   BacktrackInfo bi)
            throws PrologException

execute call instruction within specified sate

Specified by:

execute in class Instruction

Parameters:

state - state within which instruction will be executed

Returns:

instruction to caller how to execute next instruction

Throws:

PrologException - if code is throwing prolog exception

toString

public String toString()

convert instruction to string

Overrides:

toString in class Object