ScriptRuntime.IdEnumeration

java.lang.Object
- org.htmlunit.corejs.javascript.ScriptRuntime.IdEnumeration

All Implemented Interfaces:

java.io.Serializable

Enclosing class:

ScriptRuntime
```
private static class ScriptRuntime.IdEnumeration
extends java.lang.Object
implements java.io.Serializable
```
This is the enumeration needed by the for..in statement.
See ECMA 12.6.3.
IdEnumeration maintains a ObjToIntMap to make sure a given id is enumerated only once across multiple objects in a prototype chain.
XXX - ECMA delete doesn't hide properties in the prototype, but js/ref does. This means that the js/ref for..in can avoid maintaining a hash table and instead perform lookups to see if a given property has already been enumerated.

Field Summary

Fields
Modifier and Type	Field	Description
`(package private) java.lang.Object`	`currentId`
`(package private) boolean`	`enumNumbers`
`(package private) int`	`enumType`
`(package private) java.lang.Object[]`	`ids`
`(package private) int`	`index`
`(package private) Scriptable`	`iterator`
`(package private) Scriptable`	`obj`
`private static long`	`serialVersionUID`
`(package private) ObjToIntMap`	`used`

Constructor Summary

Constructors
Modifier Constructor Description

private IdEnumeration()

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

Field Detail

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

Constant Field Values

obj
```
Scriptable obj
```

ids
```
java.lang.Object[] ids
```

used
```
ObjToIntMap used
```

currentId
```
java.lang.Object currentId
```

index
```
int index
```

enumType
```
int enumType
```

enumNumbers
```
boolean enumNumbers
```

iterator
```
Scriptable iterator
```

Constructor Detail
- IdEnumeration
```
private IdEnumeration()
```