de.up.ling.irtg.laboratory

Class Operation.LookupVariableOperation

java.lang.Object

de.up.ling.irtg.laboratory.Operation.LookupVariableOperation

All Implemented Interfaces:

Operation

Enclosing interface:

Operation

public static class Operation.LookupVariableOperation
extends Object
implements Operation

An operation that looks up a variable that was defined in a previous line of the program / task.

Nested Class Summary

Nested classes/interfaces inherited from interface de.up.ling.irtg.laboratory.Operation

Operation.ConstructorOperation, Operation.LookupVariableOperation, Operation.MethodOperation, Operation.NullOperation, Operation.PrimitiveTypeOperation, Operation.StringOperation, Operation.WrapperException

Constructor Summary

Constructors

Constructor and Description
LookupVariableOperation(Object[] computedObjectsTracker, Class[] resultsTypeTracker, int index, String extra)

Method Summary

Modifier and Type	Method and Description
Object	apply(List<Object> input) Applies the operation.
Class	getReturnType() Returns the Class of the object this operation returns.
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface de.up.ling.irtg.laboratory.Operation

executeTree

Constructor Detail

LookupVariableOperation

public LookupVariableOperation(Object[] computedObjectsTracker,
                               Class[] resultsTypeTracker,
                               int index,
                               String extra)

Parameters:

computedObjectsTracker - The array where during execution of the task the variables are stored. Contains the base irtg at index 0, followed by the inputs.

resultsTypeTracker - Here, during type checking the types of the variables are stored. Contains the type of the base irtg at index 0, followed by the inputs.

index -

extra - store extra information, currently used to distinguish global from local lookups

Method Detail

apply

public Object apply(List<Object> input)
             throws IllegalAccessException,
                    InvocationTargetException

Description copied from interface: Operation

Applies the operation.

Specified by:

apply in interface Operation

Parameters:

input - These inputs are used as parameters for the operation, in the order in which they occur in the list.

Returns:

Throws:

IllegalAccessException

InvocationTargetException

getReturnType

public Class getReturnType()

Description copied from interface: Operation

Returns the Class of the object this operation returns.

Specified by:

getReturnType in interface Operation

Returns:

toString

public String toString()

Overrides:

toString in class Object