134 lines
6.7 KiB
HTML
134 lines
6.7 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
|
|
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
|
|
<meta name="generator" content="Doxygen 1.8.18"/>
|
|
<meta name="viewport" content="width=device-width, initial-scale=1"/>
|
|
<title>AngelScript: Objects and handles</title>
|
|
<link href="tabs.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="jquery.js"></script>
|
|
<script type="text/javascript" src="dynsections.js"></script>
|
|
<link href="navtree.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="resize.js"></script>
|
|
<script type="text/javascript" src="navtreedata.js"></script>
|
|
<script type="text/javascript" src="navtree.js"></script>
|
|
<link href="search/search.css" rel="stylesheet" type="text/css"/>
|
|
<script type="text/javascript" src="search/searchdata.js"></script>
|
|
<script type="text/javascript" src="search/search.js"></script>
|
|
<script type="text/javascript">
|
|
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
|
|
$(document).ready(function() { init_search(); });
|
|
/* @license-end */
|
|
</script>
|
|
<link href="doxygen.css" rel="stylesheet" type="text/css" />
|
|
</head>
|
|
<body>
|
|
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
|
|
<div id="titlearea">
|
|
<table cellspacing="0" cellpadding="0">
|
|
<tbody>
|
|
<tr style="height: 56px;">
|
|
<td id="projectlogo"><img alt="Logo" src="aslogo_small.png"/></td>
|
|
<td id="projectalign" style="padding-left: 0.5em;">
|
|
<div id="projectname">AngelScript
|
|
</div>
|
|
</td>
|
|
<td> <div id="MSearchBox" class="MSearchBoxInactive">
|
|
<span class="left">
|
|
<img id="MSearchSelect" src="search/mag_sel.png"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
alt=""/>
|
|
<input type="text" id="MSearchField" value="Search" accesskey="S"
|
|
onfocus="searchBox.OnSearchFieldFocus(true)"
|
|
onblur="searchBox.OnSearchFieldFocus(false)"
|
|
onkeyup="searchBox.OnSearchFieldChange(event)"/>
|
|
</span><span class="right">
|
|
<a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
|
|
</span>
|
|
</div>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
</div>
|
|
<!-- end header part -->
|
|
<!-- Generated by Doxygen 1.8.18 -->
|
|
<script type="text/javascript">
|
|
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
|
|
var searchBox = new SearchBox("searchBox", "search",false,'Search');
|
|
/* @license-end */
|
|
</script>
|
|
</div><!-- top -->
|
|
<div id="side-nav" class="ui-resizable side-nav-resizable">
|
|
<div id="nav-tree">
|
|
<div id="nav-tree-contents">
|
|
<div id="nav-sync" class="sync"></div>
|
|
</div>
|
|
</div>
|
|
<div id="splitbar" style="-moz-user-select:none;"
|
|
class="ui-resizable-handle">
|
|
</div>
|
|
</div>
|
|
<script type="text/javascript">
|
|
/* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */
|
|
$(document).ready(function(){initNavTree('doc_datatypes_obj.html',''); initResizable(); });
|
|
/* @license-end */
|
|
</script>
|
|
<div id="doc-content">
|
|
<!-- window showing the filter options -->
|
|
<div id="MSearchSelectWindow"
|
|
onmouseover="return searchBox.OnSearchSelectShow()"
|
|
onmouseout="return searchBox.OnSearchSelectHide()"
|
|
onkeydown="return searchBox.OnSearchSelectKey(event)">
|
|
</div>
|
|
|
|
<!-- iframe showing the search results (closed by default) -->
|
|
<div id="MSearchResultsWindow">
|
|
<iframe src="javascript:void(0)" frameborder="0"
|
|
name="MSearchResults" id="MSearchResults">
|
|
</iframe>
|
|
</div>
|
|
|
|
<div class="PageDoc"><div class="header">
|
|
<div class="headertitle">
|
|
<div class="title">Objects and handles </div> </div>
|
|
</div><!--header-->
|
|
<div class="contents">
|
|
<div class="textblock"><h1><a class="anchor" id="objects"></a>
|
|
Objects</h1>
|
|
<p>There are two forms of objects, reference types and value types.</p>
|
|
<p>Value types behave much like the primitive types, in that they are allocated on the stack and deallocated when the variable goes out of scope. Only the application can register these types, so you need to check with the application's documentation for more information about the registered types.</p>
|
|
<p>Reference types are allocated on the memory heap, and may outlive the initial variable that allocates them if another reference to the instance is kept. All <a class="el" href="doc_script_class.html">script declared classes</a> are reference types. <a class="el" href="doc_global_interface.html">Interfaces</a> are a special form of reference types, that cannot be instantiated, but can be used to access the objects that implement the interfaces without knowing exactly what type of object it is.</p>
|
|
<pre>
|
|
obj o; // An object is instantiated
|
|
o = obj(); // A temporary instance is created whose
|
|
// value is assigned to the variable
|
|
</pre><h1><a class="anchor" id="handles"></a>
|
|
Object handles</h1>
|
|
<p>Object handles are a special type that can be used to hold references to other objects. When calling methods or accessing properties on a variable that is an object handle you will be accessing the actual object that the handle references, just as if it was an alias. Note that unless initialized with the handle of an object, the handle is <code>null</code>.</p>
|
|
<pre>
|
|
obj o;
|
|
obj@ a; // a is initialized to null
|
|
obj@ b = @o; // b holds a reference to o</pre><pre> b.ModifyMe(); // The method modifies the original object</pre><pre> if( a is null ) // Verify if the object points to an object
|
|
{
|
|
@a = @b; // Make a hold a reference to the same object as b
|
|
}
|
|
</pre><p>Not all types allow a handle to be taken. Neither of the primitive types can have handles, and there may exist some object types that do not allow handles. Which objects allow handles or not, are up to the application that registers them.</p>
|
|
<p>Object handle and array type modifiers can be combined to form handles to arrays, or arrays of handles, etc.</p>
|
|
<dl class="section see"><dt>See also</dt><dd><a class="el" href="doc_script_handle.html">Object handles</a> </dd></dl>
|
|
</div></div><!-- contents -->
|
|
</div><!-- PageDoc -->
|
|
</div><!-- doc-content -->
|
|
<!-- start footer part -->
|
|
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
|
|
<ul>
|
|
<li class="footer">Generated on Sat Dec 5 2020 23:20:24 for AngelScript by
|
|
<a href="http://www.doxygen.org/index.html">
|
|
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.18 </li>
|
|
</ul>
|
|
</div>
|
|
</body>
|
|
</html>
|