org.apache.flex.compiler.internal.scopes

Class SmallDefinitionSet

java.lang.Object

org.apache.flex.compiler.internal.scopes.SmallDefinitionSet

All Implemented Interfaces:

IMutableDefinitionSet, IDefinitionSet

public class SmallDefinitionSet
extends Object
implements IMutableDefinitionSet

An implementation of IMutableDefinitionSet set that can hold only a small and fixed number -- currently 2 -- of definitions.

Note that this class simply stores its two definitions in two fields and does not require a separate array.

95% of definition sets contain only a single definition, which is why DefinitionBase implements IDefinitionSet to make a single definition act as a set of size 1. Most of the other 5% of definition sets contain only two definitions, typically for a getter/setter pair, and can use SmallDefinitionSet; this class is for them. Less than 1% of definitions sets contain more than 2 definitions and must use LargeDefinitionSet.

Constructor Summary

Constructors

Constructor and Description
SmallDefinitionSet(IDefinition definition0, IDefinition definition1) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
void	addDefinition(IDefinition definition) Adds a definition to this set.
IDefinition	getDefinition(int i) Gets a definition in this set, by index.
int	getMaxSize()
int	getSize()
boolean	isEmpty() Determines if this definition set is empty.
void	removeDefinition(IDefinition definition) Removes a definition from this set.
void	replaceDefinition(int i, IDefinition newDefinition) Replaces the IDefinition at the specified index with a new definition.
String	toString() For debugging only.

Methods inherited from class java.lang.Object

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

Constructor Detail

SmallDefinitionSet

public SmallDefinitionSet(IDefinition definition0,
                  IDefinition definition1)

Constructor.

Method Detail

isEmpty

public boolean isEmpty()

Description copied from interface: IDefinitionSet

Determines if this definition set is empty.

Specified by:

isEmpty in interface IDefinitionSet

Returns:

true if the definition set is empty.

getSize

public int getSize()

Specified by:

getSize in interface IDefinitionSet

Returns:

The size of the definition set.

getMaxSize

public int getMaxSize()

Specified by:

getMaxSize in interface IDefinitionSet

Returns:

The maximum size of the definition set.

getDefinition

public IDefinition getDefinition(int i)

Description copied from interface: IDefinitionSet

Gets a definition in this set, by index.

Specified by:

getDefinition in interface IDefinitionSet

Parameters:

i - The index of the definition.

Returns:

An IDefinition for the definition.

addDefinition

public void addDefinition(IDefinition definition)

Description copied from interface: IMutableDefinitionSet

Adds a definition to this set.

Specified by:

addDefinition in interface IMutableDefinitionSet

Parameters:

definition - The IDefinition to add.

removeDefinition

public void removeDefinition(IDefinition definition)

Description copied from interface: IMutableDefinitionSet

Removes a definition from this set.

Specified by:

removeDefinition in interface IMutableDefinitionSet

Parameters:

definition - The IDefinitionNode to remove.

replaceDefinition

public void replaceDefinition(int i,
                     IDefinition newDefinition)

Description copied from interface: IMutableDefinitionSet

Replaces the IDefinition at the specified index with a new definition.

Specified by:

replaceDefinition in interface IMutableDefinitionSet

Parameters:

i - The index of the IDefinition to replace.

newDefinition - The new IDefinition to store in the set.

toString

public String toString()

For debugging only.

Overrides:

toString in class Object