blob: f3ac7a68252c0649f0153305e473fe9d1a554c5f [file] [log] [blame]
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Xtend - Documentation</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description"
content="Xtend is a statically typed programming language sitting on top of Java.">
<meta name="author" content="Sven Efftinge">
<meta name="author" content="Miro Spoenemann">
<!-- styles -->
<!-- Le HTML5 shim, for IE6-8 support of HTML5 elements -->
<!--[if lt IE 9]>
<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
<!-- Le fav and touch icons -->
<link rel="shortcut icon" href="/xtend/images/favicon.png">
<link href="/xtend/css/bootstrap.css" rel="stylesheet" type='text/css'>
<link href="/xtend/css/bootstrap-responsive.css" rel="stylesheet" type='text/css'>
<link href="/xtend/css/shield-responsive.css" rel="stylesheet" type='text/css'>
<link href='/xtend/css/fonts.css' rel='stylesheet' type='text/css'>
<link href="/xtend/css/prettyPhoto.css" rel="stylesheet" media="screen" type='text/css'>
<link href="/xtend/css/prettify.css" type="text/css" rel="stylesheet"/>
<link href="/xtend/css/style.css" rel="stylesheet" type='text/css'>
<!--[if lt IE 9]>
<link href="css/iebugs.css" rel="stylesheet" type='text/css'>
<![endif]-->
<!-- BEGIN Cookie Consent
<link rel="stylesheet" type="text/css" href="//cdnjs.cloudflare.com/ajax/libs/cookieconsent2/3.0.3/cookieconsent.min.css" />
<script src="//cdnjs.cloudflare.com/ajax/libs/cookieconsent2/3.0.3/cookieconsent.min.js"></script>
<script>
window.addEventListener("load", function(){
window.cookieconsent.initialise({
"palette": {
"popup": {
"background": "#000"
},
"button": {
"background": "#f1d600"
}
},
"theme": "edgeless",
"type": "opt-in",
onInitialise: function (status) {
var type = this.options.type;
var didConsent = this.hasConsented();
if (type == 'opt-in' && didConsent) {
// TODO: enable cookies
}
if (type == 'opt-out' && !didConsent) {
// TODO: disable cookies
}
},
onStatusChange: function(status, chosenBefore) {
var type = this.options.type;
var didConsent = this.hasConsented();
if (type == 'opt-in' && didConsent) {
// TODO: enable cookies
}
if (type == 'opt-out' && !didConsent) {
// TODO: disable cookies
}
},
onRevokeChoice: function() {
var type = this.options.type;
if (type == 'opt-in') {
// TODO: disable cookies
}
if (type == 'opt-out') {
// TODO: enable cookies
}
},
"content": {
"href": "http://www.eclipse.org/legal/privacy.php"
}
})});
</script>
END Cookie Consent -->
</head>
<body>
<!-- Navbar -->
<div class="navbar navbar-fixed-top"
style="border-bottom: 1px solid #000;">
<div class="navbar-inner">
<div class="container">
<a class="btn btn-navbar" data-toggle="collapse"
data-target=".nav-collapse"> <span class="icon-bar"></span> <span
class="icon-bar"></span> <span class="icon-bar"></span>
</a> <a class="brand" href="/xtend/index.html"></a>
<div class="nav-collapse collapse" style="height: 0px;">
<ul class="nav">
<li ><a href="/xtend/download.html">Download</a></li>
<li ><a href="/xtend/documentation/index.html">Documentation</a></li>
<li ><a href="/xtend/community.html">Community</a></li>
<li ><a href="http://xtext.org">Xtext</a></li>
<li ><a href="http://www.eclipse.org">Eclipse.org</a></li>
</ul>
<!--div class="btn-group pull-right">
<div class="g-plusone" data-href="http://www.xtend-lang.org"></div>
</div-->
</div>
<!--/.nav-collapse -->
</div>
</div>
</div>
<!-- Navbar End -->
<div class="page-content">
<script>
function startSearch(event) {
if (event.keyCode == 13) {
var q = 'site:eclipse.org/xtend/documentation+' + event.target.value;
window.open('https://www.google.com/search?q=' + q, "_self");
}
}
</script>
<div class="wrapper">
<div id="page">
<div class="inner">
<div id="maincontainer" class="container">
<span class="edit-on-github pull-right">
<a href="https://github.com/eclipse/xtext/edit/website-published/xtend-website/documentation/index.md">Edit on Github</a>
</span>
<div class="span3" style="margin-left: 0px;">
<div class="search-bar">
<img src="/xtend/images/search-gray.png"/>
<input type="search" id="google-search" onkeyup="startSearch(event);"/>
</div>
<ul id="nav-outline">
<li>&nbsp;</li>
<li style="color : #333;">Getting Started</li>
<li><a href="101_gettingstarted.html">Hello World</a></li>
<li><a href="102_moviesexample.html">The Movies Example</a></li>
<li>&nbsp;</li>
<li style="color : #333;">Reference Documentation</li>
<li><a href="201_types.html">Java Interoperability</a></li>
<li><a href="202_xtend_classes_members.html">Classes and Members</a></li>
<li><a href="203_xtend_expressions.html">Expressions</a></li>
<li><a href="204_activeannotations.html">Active Annotations</a></li>
</ul>
</div>
<div class="span9 doc-contents">
<h1 id="introduction">Introduction</h1>
<p>Xtend is a statically-typed programming language which translates to comprehensible Java source code. Syntactically and semantically Xtend has its roots in the Java programming language but improves on many aspects:</p>
<ul>
<li><strong><a href="202_xtend_classes_members.html#extension-methods">Extension methods</a></strong> - enhance closed types with new functionality</li>
<li><strong><a href="203_xtend_expressions.html#lambdas">Lambda Expressions</a></strong> - concise syntax for anonymous function literals</li>
<li><strong><a href="204_activeannotations.html">ActiveAnnotations</a></strong> - annotation processing on steroids</li>
<li><strong><a href="203_xtend_expressions.html#operators">Operator overloading</a></strong> - make your libraries even more expressive</li>
<li><strong><a href="203_xtend_expressions.html#switch-expression">Powerful switch expressions</a></strong> - type based switching with implicit casts</li>
<li><strong><a href="202_xtend_classes_members.html#polymorphic-dispatch">Multiple dispatch</a></strong> - a.k.a. polymorphic method invocation</li>
<li><strong><a href="203_xtend_expressions.html#templates">Template expressions</a></strong> - with intelligent white space handling</li>
<li><strong><a href="203_xtend_expressions.html">No statements</a></strong> - everything is an expression</li>
<li><strong><a href="203_xtend_expressions.html#property-access">Properties</a></strong> - shorthands for accessing and defining getters and setter</li>
<li><strong>Type inference</strong> - you rarely need to write down type signatures anymore</li>
<li><strong>Full support for Java generics</strong> - including all conformance and conversion rules</li>
<li><strong>Translates to Java</strong> not bytecode - understand what is going on and use your code for platforms such as Android or GWT</li>
</ul>
<p>Unlike other JVM languages Xtend has <a href="201_types.html">zero interoperability issues</a> with Java: Everything you write interacts with Java exactly as expected. At the same time Xtend is much more concise, readable and expressive. Xtend’s small library is just a thin layer that provides useful utilities and extensions on top of the Java Development Kit (JDK).</p>
<p>Of course, you can call Xtend methods from Java, too, in a completely transparent way. Furthermore, Xtend provides a modern Eclipse-based IDE closely integrated with the Eclipse Java Development Tools (JDT), including features like call-hierarchies, rename refactoring, debugging and many more.</p>
<hr />
<p><strong><a href="101_gettingstarted.html">Next Chapter: Hello World</a></strong></p>
</div>
</div>
</div>
</div>
</div>
</div>
<footer class="site-footer">
<div id="extra">
<div class="container inner-footer">
<div class="row">
<div class="span6">
<h3 class="footer-links-header">Quick Links</h3>
<ul class="footer-links clearfix">
<li><a href="http://www.eclipse.org/legal/privacy.php">Privacy Policy</a></li>
<li><a href="http://www.eclipse.org/legal/termsofuse.php">Terms of Use</a></li>
<li><a href="http://www.eclipse.org/legal/copyright.php">Copyright Agent</a></li>
<li><a href="http://www.eclipse.org/legal/">Legal</a></li>
</ul>
<ul class="footer-links clearfix">
<li><a href="http://www.eclipse.org">Eclipse Home</a></li>
<li><a href="http://marketplace.eclipse.org/">Market Place</a></li>
<li><a href="http://www.planeteclipse.org/">Eclipse Planet</a></li>
<li><a href="https://www.eclipse.org/forums/index.php/f/27/">Xtext Forum</a></li>
</ul>
</div>
<div class="span6">
<!-- Social Media Links -->
<h3 class="footer-links-header"">Social Media</h3>
<ul class="footer-links clearfix">
<li>
<a href="https://twitter.com/xtendlang"><img src="/xtend/images/Twitter-bird-darkgray.png" class="img-responsive" style="margin-right: 5px;height: 1em;" alt="Twitter icon">@xtendlang on Twitter</a>
</li>
</ul>
</div>
</div>
</div>
</div>
<a href="#" class="scrollup fadeOutRight animated" style="display: none;">ScrollUp</a>
<a href="http://dryicons.com/">Icons by http://dryicons.com</a>
<!-- Le javascript
================================================== -->
<!-- Placed at the end of the document so the pages load faster -->
<script src="/xtend/js/jquery-1.7.1.min.js" type="text/javascript"></script>
<script src="/xtend/js/bootstrap.min.js" type="text/javascript"></script>
<!-- include pretty-print files -->
<script src="/xtend/js/prettify.js" type="text/javascript" ></script>
<script src="/xtend/js/lang-xtend.js" type="text/javascript"></script>
<!-- Include the plug-in -->
<script src="/xtend/js/jquery.prettyPhoto.js" type="text/javascript"></script>
<script src="/xtend/js/jquery.easing.1.3.js" type="text/javascript"></script>
<script src="/xtend/js/custom.js" type="text/javascript"></script>
<!--script src="https://apis.google.com/js/platform.js" async defer></script-->
<!--script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push([ '_setAccount', 'UA-2429174-4' ]);
_gaq.push([ '_trackPageview' ]);
(function() {
var ga = document.createElement('script');
ga.type = 'text/javascript';
ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl'
: 'http://www')
+ '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0];
s.parentNode.insertBefore(ga, s);
})();
</script-->
</footer>
</body>
</html>