org.apache.royale.compiler.internal.visitor.as

Class BeforeAfterStrategy

java.lang.Object

org.apache.royale.compiler.internal.visitor.as.ASNodeHandler

org.apache.royale.compiler.internal.visitor.as.BeforeAfterStrategy

All Implemented Interfaces:

IASNodeStrategy

public class BeforeAfterStrategy
extends ASNodeHandler

The BeforeAfterStrategy implements a before and after IASNode handler.

When handle(IASNode) is called on an instance of this class, the default handle(IASNode) method will first call the getBefore() handle() method , the will call the supers handle() implementation which is to call the ASNodeHandler.getHandler() handle() method. Finally, the getAfter() handler's handle() method will be called.

Currently, this strategy is used for indenting and IBlockNode pre and post symbol management.

Author:

Michael Schmalle

Constructor Summary

Constructors

Constructor and Description
BeforeAfterStrategy(IASNodeStrategy handler, IASNodeStrategy before, IASNodeStrategy after) Constructor, creates a strategy that implements a before and after IASNodeStrategy.

Method Summary

Modifier and Type	Method and Description
protected void	after(IASNode node) Called before the handle(IASNode) method.
protected void	before(IASNode node) Called after the handle(IASNode) method.
IASNodeStrategy	getAfter() Returns the IASNodeStrategy called after the ASNodeHandler.getHandler()'s handle() method.
IASNodeStrategy	getBefore() Returns the IASNodeStrategy called before the ASNodeHandler.getHandler()'s handle() method.
void	handle(IASNode node) The strategy will handle the specific IASNode.
void	setAfter(IASNodeStrategy value) Sets the after handler.
void	setBefore(IASNodeStrategy value) Sets the before handler.

Methods inherited from class org.apache.royale.compiler.internal.visitor.as.ASNodeHandler

getHandler, setHandler

Methods inherited from class java.lang.Object

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

Constructor Detail

BeforeAfterStrategy

public BeforeAfterStrategy(IASNodeStrategy handler,
                           IASNodeStrategy before,
                           IASNodeStrategy after)

Constructor, creates a strategy that implements a before and after IASNodeStrategy.

Parameters:

handler - The handler that will be called between the before and after handle(IASNode) method.

before - The before handler.

after - The after handler.

Method Detail

getBefore

public IASNodeStrategy getBefore()

Returns the IASNodeStrategy called before the ASNodeHandler.getHandler()'s handle() method.

Returns:

The before handler.

setBefore

public void setBefore(IASNodeStrategy value)

Sets the before handler.

Parameters:

before - The before handler.

getAfter

public IASNodeStrategy getAfter()

Returns the IASNodeStrategy called after the ASNodeHandler.getHandler()'s handle() method.

Returns:

The after handler.

setAfter

public void setAfter(IASNodeStrategy value)

Sets the after handler.

Parameters:

after - The after handler.

handle

public void handle(IASNode node)

Description copied from interface: IASNodeStrategy

The strategy will handle the specific IASNode.

Specified by:

handle in interface IASNodeStrategy

Overrides:

handle in class ASNodeHandler

Parameters:

node - The IASNode to handle.

after

protected void after(IASNode node)

Called before the handle(IASNode) method.

If the getAfter() strategy is null, this method does nothing.

Parameters:

node - The current IASNode being handled by the strategy.

before

protected void before(IASNode node)

Called after the handle(IASNode) method.

If the getBefore() strategy is null, this method does nothing.

Parameters:

node - The current IASNode being handled by the strategy.