gnu.prolog.vm.interpreter.instruction
Class IRestoreState
java.lang.Object
   gnu.prolog.vm.interpreter.instruction.Instruction
gnu.prolog.vm.interpreter.instruction.Instruction
       gnu.prolog.vm.interpreter.instruction.IRestoreState
gnu.prolog.vm.interpreter.instruction.IRestoreState
- All Implemented Interfaces: 
- Installable
- public class IRestoreState 
- extends Instruction
Restore current state from BacktrackInfo stored in environment
 
 
 
 
 
 
environmentIndex
public int environmentIndex
- environment index where state was saved
 
 
IRestoreState
public IRestoreState()
execute
public int execute(ExecutionState state,
                   BacktrackInfo bi)
            throws PrologException
- execute call instruction within specified sate
 
- 
- Specified by:
- executein 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:
- toStringin class- Object
 
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