java.lang.Object
- com.google.javascript.jscomp.VariableMap

```
@Immutable
public final class VariableMap
extends java.lang.Object
```
Stores the mapping from original variable name to new variable names.

See Also:

RenameVars

Constructor Summary

Constructors
Constructor Description

VariableMap(java.util.Map<java.lang.String,java.lang.String> map)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static VariableMap`	`fromBytes(byte[] bytes)`	Deserializes the variable map from a byte array returned by `toBytes()`.
`static VariableMap`	`fromMap(java.util.Map<java.lang.String,java.lang.String> map)`	Initializes the variable map from an existing map.
`com.google.common.collect.ImmutableMap<java.lang.String,java.lang.String>`	`getNewNameToOriginalNameMap()`	Returns an immutable mapping from new names to original names.
`com.google.common.collect.ImmutableMap<java.lang.String,java.lang.String>`	`getOriginalNameToNewNameMap()`	Returns an immutable mapping from original names to new names.
`static VariableMap`	`load(java.lang.String filename)`	Reads the variable map from a file written via `save(String)`.
`java.lang.String`	`lookupNewName(java.lang.String sourceName)`	Given an original variable name, look up new name, may return null if it's not found.
`java.lang.String`	`lookupSourceName(java.lang.String newName)`	Given a new variable name, lookup the source name, may return null if it's not found.
`void`	`save(java.lang.String filename)`	Saves the variable map to a file.
`byte[]`	`toBytes()`	Serializes the variable map to a byte array.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

VariableMap

public VariableMap(java.util.Map<java.lang.String,java.lang.String> map)

Method Detail

lookupNewName
```
public java.lang.String lookupNewName(java.lang.String sourceName)
```
Given an original variable name, look up new name, may return null if it's not found.

lookupSourceName
```
public java.lang.String lookupSourceName(java.lang.String newName)
```
Given a new variable name, lookup the source name, may return null if it's not found.

getOriginalNameToNewNameMap

public com.google.common.collect.ImmutableMap<java.lang.String,java.lang.String> getOriginalNameToNewNameMap()

Returns an immutable mapping from original names to new names.

getNewNameToOriginalNameMap

public com.google.common.collect.ImmutableMap<java.lang.String,java.lang.String> getNewNameToOriginalNameMap()

Returns an immutable mapping from new names to original names.

save

@GwtIncompatible("com.google.io.Files")
public void save(java.lang.String filename)
          throws java.io.IOException

Saves the variable map to a file.

Throws:: java.io.IOException

load

@GwtIncompatible("java.io.File")
public static VariableMap load(java.lang.String filename)
                        throws java.io.IOException

Reads the variable map from a file written via save(String).

Throws:: java.io.IOException

toBytes

@GwtIncompatible("java.io.ByteArrayOutputStream")
public byte[] toBytes()

Serializes the variable map to a byte array.

fromBytes

@GwtIncompatible("com.google.common.base.Splitter.onPattern()")
public static VariableMap fromBytes(byte[] bytes)
                             throws java.text.ParseException

Deserializes the variable map from a byte array returned by toBytes().

Throws:: java.text.ParseException

fromMap
```
public static VariableMap fromMap(java.util.Map<java.lang.String,java.lang.String> map)
```
Initializes the variable map from an existing map.

Parameters:

map - The map to use from original names to generated names. It is copied and changes to the specified map will not affect the returned object.

Class VariableMap

Constructor Summary