Package spoon.support.visitor.equals

Class CloneHelper

java.lang.Object

spoon.support.visitor.equals.CloneHelper

public class CloneHelper
extends Object

CloneHelper is responsible for creating clones of CtElement AST nodes including the whole subtree. By default, the same instance of CloneHelper is used for whole clonning process. However, by subclassing this class and overriding method clone(CtElement), one can extend and/or modify the cloning behavior. For instance, one can listen to each call to clone and get each pair of `clone source` and `clone target`.

Field Summary

Fields

Modifier and Type	Field	Description
static CloneHelper	INSTANCE

Constructor Summary

Constructors

Constructor	Description
CloneHelper()

Method Summary

Modifier and Type	Method	Description
protected <T extends CtElement> void	addClone(Collection<T> targetCollection, T element)	clones an element and adds it's clone as value into targetCollection
protected <T extends CtElement> void	addClone(Map<String,T> targetMap, String key, T value)	clones a value and adds it's clone as value into targetMap under key
<T extends CtElement> Collection<T>	clone(Collection<T> elements)
<T extends CtElement> List<T>	clone(List<T> elements)
<T extends CtElement> Map<String,T>	clone(Map<String,T> elements)
<T extends CtElement> Set<T>	clone(Set<T> elements)	clones a Set of elements
<T extends CtElement> T	clone(T element)
void	tailor(CtElement topLevelElement, CtElement topLevelClone)	Is called by CloneVisitor at the end of the cloning for each element.

Methods inherited from class java.lang.Object

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

Field Details

INSTANCE

public static final CloneHelper INSTANCE

Constructor Details

CloneHelper

public CloneHelper()

Method Details

clone

public <T extends CtElement> T clone(T element)

clone

public <T extends CtElement> Collection<T> clone(Collection<T> elements)

clone

public <T extends CtElement> List<T> clone(List<T> elements)

clone

public <T extends CtElement> Set<T> clone(Set<T> elements)

clones a Set of elements

Type Parameters:

T - the Set of elements to be cloned

Returns:

others Set of cloned elements

clone

public <T extends CtElement> Map<String,T> clone(Map<String,T> elements)

addClone

protected <T extends CtElement> void addClone(Collection<T> targetCollection,
 T element)

clones an element and adds it's clone as value into targetCollection

Parameters:

targetCollection - - the collection which will receive a clone of element

element - to be cloned element

addClone

protected <T extends CtElement> void addClone(Map<String,T> targetMap,
 String key,
 T value)

clones a value and adds it's clone as value into targetMap under key

Parameters:

targetMap - - the Map which will receive a clone of value

key - the target key, which has to be used to add cloned value into targetMap

value - to be cloned element

tailor

public void tailor(CtElement topLevelElement,
 CtElement topLevelClone)

Is called by CloneVisitor at the end of the cloning for each element.