ConsString

java.lang.Object
- org.htmlunit.corejs.javascript.ConsString

All Implemented Interfaces:

java.io.Serializable, java.lang.CharSequence
```
public class ConsString
extends java.lang.Object
implements java.lang.CharSequence, java.io.Serializable
```
This class represents a string composed of two components, each of which may be a java.lang.String or another ConsString.
This string representation is optimized for concatenation using the "+" operator. Instead of immediately copying both components to a new character array, ConsString keeps references to the original components and only converts them to a String if either toString() is called or a certain depth level is reached.
Note that instances of this class are only immutable if both parts are immutable, i.e. either Strings or ConsStrings that are ultimately composed of Strings.
Both the name and the concept are borrowed from V8.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`private boolean`	`isFlat`
`private java.lang.CharSequence`	`left`
`private int`	`length`
`private java.lang.CharSequence`	`right`
`private static long`	`serialVersionUID`

Constructor Summary

Constructors
Constructor Description

ConsString(java.lang.CharSequence str1, java.lang.CharSequence str2)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`char`	`charAt(int index)`
`private java.lang.String`	`flatten()`
`int`	`length()`
`java.lang.CharSequence`	`subSequence(int start, int end)`
`java.lang.String`	`toString()`
`private java.lang.Object`	`writeReplace()`

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

Methods inherited from interface java.lang.CharSequence
chars, codePoints

Field Detail

serialVersionUID
```
private static final long serialVersionUID
```
See Also:

Constant Field Values

left
```
private java.lang.CharSequence left
```

right
```
private java.lang.CharSequence right
```

length
```
private final int length
```

isFlat
```
private boolean isFlat
```

Constructor Detail

ConsString

public ConsString(java.lang.CharSequence str1,
                  java.lang.CharSequence str2)

Method Detail
- writeReplace
```
private java.lang.Object writeReplace()
```
- toString
```
public java.lang.String toString()
```
  Specified by:
  
  toString in interface java.lang.CharSequence
  
  Overrides:
  
  toString in class java.lang.Object
- flatten
```
private java.lang.String flatten()
```
- length
```
public int length()
```
  Specified by:
  
  length in interface java.lang.CharSequence
- charAt
```
public char charAt(int index)
```
  Specified by:
  
  charAt in interface java.lang.CharSequence
- subSequence
```
public java.lang.CharSequence subSequence(int start,
                                          int end)
```
  Specified by:
  
  subSequence in interface java.lang.CharSequence