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 lambda-support

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enum.js

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/* -*- tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-

*

* This Source Code Form is subject to the terms of the Mozilla Public

* License, v. 2.0. If a copy of the MPL was not distributed with this

* file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/*

Implementing the interface java.util.Enumeration passing the object

with JavaScript implementation directly to the constructor.

This is a shorthand for JavaAdapter constructor:

elements = new JavaAdapter(java.util.Enumeration, {

index: 0,

elements: array,

hasMoreElements: function ...

nextElement: function ...

});

*/

// an array to enumerate.

var array = [0, 1, 2];

// create an array enumeration.

var elements = new java.util.Enumeration({

index: 0,

elements: array,

hasMoreElements: function() {

return (this.index < this.elements.length);

},

nextElement: function() {

return this.elements[this.index++];

}

});

// now print out the array by enumerating through the Enumeration

while (elements.hasMoreElements())

print(elements.nextElement());