com.google.javascript.jscomp

Class MakeDeclaredNamesUnique.ContextualRenamer

java.lang.Object

com.google.javascript.jscomp.MakeDeclaredNamesUnique.ContextualRenamer

All Implemented Interfaces:

MakeDeclaredNamesUnique.Renamer

Direct Known Subclasses:

MakeDeclaredNamesUnique.BoilerplateRenamer

Enclosing class:

MakeDeclaredNamesUnique

static class MakeDeclaredNamesUnique.ContextualRenamer
extends java.lang.Object
implements MakeDeclaredNamesUnique.Renamer

Rename every locally name to be unique, the first encountered declaration (specifically global names) are left in their original form. Those that are renamed are made unique by giving them a unique suffix based on the number of declarations of the name. The root ContextualRenamer is assumed to be in GlobalScope. Used by the Normalize pass.

See Also:

Normalize

Field Summary

Fields

Modifier and Type	Field and Description
private java.util.Map<java.lang.String,java.lang.String>	declarations
private boolean	global
private MakeDeclaredNamesUnique.Renamer	hoistRenamer
private com.google.common.collect.Multiset<java.lang.String>	nameUsage
(package private) static java.lang.String	UNIQUE_ID_SEPARATOR

Constructor Summary

Constructors

Modifier	Constructor and Description
(package private)	ContextualRenamer()
private	ContextualRenamer(com.google.common.collect.Multiset<java.lang.String> nameUsage, boolean hoistingTargetScope, MakeDeclaredNamesUnique.Renamer parent) Constructor for child scopes.

Method Summary

Modifier and Type	Method and Description
void	addDeclaredName(java.lang.String name, boolean hoisted) Adds a name to the map of names declared in this scope.
MakeDeclaredNamesUnique.Renamer	forChildScope(boolean hoistintTargetScope) Create a ContextualRenamer
MakeDeclaredNamesUnique.Renamer	getHoistRenamer()
java.lang.String	getReplacementName(java.lang.String oldName)
private static java.lang.String	getUniqueName(java.lang.String name, int id) Given a name and the associated id, create a new unique name.
private int	incrementNameCount(java.lang.String name)
private void	reserveName(java.lang.String name)
boolean	stripConstIfReplaced()

Methods inherited from class java.lang.Object

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

Field Detail

nameUsage

private final com.google.common.collect.Multiset<java.lang.String> nameUsage

declarations

private final java.util.Map<java.lang.String,java.lang.String> declarations

global

private final boolean global

hoistRenamer

private final MakeDeclaredNamesUnique.Renamer hoistRenamer

UNIQUE_ID_SEPARATOR

static final java.lang.String UNIQUE_ID_SEPARATOR

See Also:

Constant Field Values

Constructor Detail

ContextualRenamer

ContextualRenamer()

ContextualRenamer

private ContextualRenamer(com.google.common.collect.Multiset<java.lang.String> nameUsage,
                          boolean hoistingTargetScope,
                          MakeDeclaredNamesUnique.Renamer parent)

Constructor for child scopes.

Method Detail

forChildScope

public MakeDeclaredNamesUnique.Renamer forChildScope(boolean hoistintTargetScope)

Create a ContextualRenamer

Specified by:

forChildScope in interface MakeDeclaredNamesUnique.Renamer

Returns:

A Renamer for a scope within the scope of the current Renamer.

addDeclaredName

public void addDeclaredName(java.lang.String name,
                            boolean hoisted)

Adds a name to the map of names declared in this scope.

Specified by:

addDeclaredName in interface MakeDeclaredNamesUnique.Renamer

getReplacementName

public java.lang.String getReplacementName(java.lang.String oldName)

Specified by:

getReplacementName in interface MakeDeclaredNamesUnique.Renamer

Returns:

A replacement name, null if oldName is unknown or should not be replaced.

getUniqueName

private static java.lang.String getUniqueName(java.lang.String name,
                                              int id)

Given a name and the associated id, create a new unique name.

reserveName

private void reserveName(java.lang.String name)

incrementNameCount

private int incrementNameCount(java.lang.String name)

stripConstIfReplaced

public boolean stripConstIfReplaced()

Specified by:

stripConstIfReplaced in interface MakeDeclaredNamesUnique.Renamer

Returns:

Whether the constant-ness of a name should be removed.

getHoistRenamer

public MakeDeclaredNamesUnique.Renamer getHoistRenamer()

Specified by:

getHoistRenamer in interface MakeDeclaredNamesUnique.Renamer

Returns:

The closest hoisting target for var and function declarations.