Package org.apache.sling.scripting.sightly.impl.compiler.visitor

Class TrackingVisitor<T>

java.lang.Object

org.apache.sling.scripting.sightly.impl.compiler.visitor.UniformVisitor

org.apache.sling.scripting.sightly.impl.compiler.visitor.TrackingVisitor<T>

All Implemented Interfaces:

CommandVisitor

Direct Known Subclasses:

ConstantFolding, DeadCodeRemoval, SyntheticMapRemoval, UnusedVariableRemoval

public abstract class TrackingVisitor<T>
extends UniformVisitor

Command visitor which tracks variables in commands.

Field Summary

Fields

Modifier and Type	Field	Description
protected final VariableTracker<T>	tracker

Constructor Summary

Constructors

Constructor	Description
TrackingVisitor()

Method Summary

Modifier and Type	Method	Description
protected abstract T	assignDefault(Command command)
void	visit(Loop.End loopEnd)	Process a Loop.End command.
void	visit(Loop.Start loopStart)	Process a Loop.Start command.
void	visit(VariableBinding.End variableBindingEnd)	Process a VariableBinding.End command.
void	visit(VariableBinding.Start variableBindingStart)	Process a VariableBinding.Start command.

Methods inherited from class org.apache.sling.scripting.sightly.impl.compiler.visitor.UniformVisitor

onCommand, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

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

Field Details

tracker

protected final VariableTracker<T> tracker

Constructor Details

TrackingVisitor

public TrackingVisitor()

Method Details

visit

public void visit(VariableBinding.Start variableBindingStart)

Description copied from interface: CommandVisitor

Process a VariableBinding.Start command.

Specified by:

visit in interface CommandVisitor

Overrides:

visit in class UniformVisitor

Parameters:

variableBindingStart - the command

visit

public void visit(VariableBinding.End variableBindingEnd)

Description copied from interface: CommandVisitor

Process a VariableBinding.End command.

Specified by:

visit in interface CommandVisitor

Overrides:

visit in class UniformVisitor

Parameters:

variableBindingEnd - the command

visit

public void visit(Loop.Start loopStart)

Description copied from interface: CommandVisitor

Process a Loop.Start command.

Specified by:

visit in interface CommandVisitor

Overrides:

visit in class UniformVisitor

Parameters:

loopStart - the command

visit

public void visit(Loop.End loopEnd)

Description copied from interface: CommandVisitor

Process a Loop.End command.

Specified by:

visit in interface CommandVisitor

Overrides:

visit in class UniformVisitor

Parameters:

loopEnd - the command

assignDefault

protected abstract T assignDefault(Command command)