pstypes
Interface PSFlowOperator

All Superinterfaces:

PSObject, PSOperator

All Known Implementing Classes:

PSExit, PSFor, PSIf, PSIfelse, PSLoop

public interface PSFlowOperator

extends PSOperator

An object that implements this interface is defined as a flow control operator.

This interface defines the group of flow control operators.

All the flow control operators must check if the input taken is valid and determine on which type of literals the flow control functions will be perfomed.

Method Summary

void	action(PSStack s) Executes the action as it is intented.

Methods inherited from interface pstypes.PSOperator

getOperatorToken, isValid

Method Detail

action

public void action(PSStack s)
            throws java.lang.Throwable

Executes the action as it is intented.

The implementor determines the kind of the equality that will be held as well as the type of operands needed.

Precondition : A valid stack is given to method.
Postcondition : The implemented action will be executed.

Parameters:

s - The stack where the operands are stored.

Throws:

java.lang.Throwable