<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <link rel="stylesheet" href="style.css" type="text/css"> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> <link rel="Start" href="index.html"> <link rel="previous" href="React.S.html"> <link rel="Up" href="React.html"> <link title="Index of types" rel=Appendix href="index_types.html"> <link title="Index of values" rel=Appendix href="index_values.html"> <link title="Index of modules" rel=Appendix href="index_modules.html"> <link title="Index of module types" rel=Appendix href="index_module_types.html"> <link title="React" rel="Chapter" href="React.html"><link title="Steps" rel="Section" href="#1_Steps"> <title>React.Step</title> </head> <body> <div class="navbar"><a class="pre" href="React.S.html" title="React.S">Previous</a> <a class="up" href="React.html" title="React">Up</a> </div> <h1>Module <a href="type_React.Step.html">React.Step</a></h1> <pre><span class="keyword">module</span> Step: <code class="code"><span class="keyword">sig</span></code> <a href="React.Step.html">..</a> <code class="code"><span class="keyword">end</span></code></pre><div class="info module top"> Update steps. <p> Update functions returned by <a href="React.S.html#VALcreate"><code class="code"><span class="constructor">React</span>.<span class="constructor">S</span>.create</code></a> and <a href="React.E.html#VALcreate"><code class="code"><span class="constructor">React</span>.<span class="constructor">E</span>.create</code></a> implicitely create and execute update steps when used without specifying their <code class="code">step</code> argument. <p> Using explicit <a href="React.html#TYPEstep"><code class="code"><span class="constructor">React</span>.step</code></a> values with these functions gives more control on the time when the update step is perfomed and allows to perform simultaneous <a href="React.html#primitives">primitive</a> signal updates and event occurences. See also the documentation about <a href="React.html#steps">update steps</a> and <a href="React.html#simultaneity">simultaneous events</a>.<br> </div> <hr width="100%"> <br> <h1 id="1_Steps">Steps</h1><br> <pre><span id="TYPEt"><span class="keyword">type</span> <code class="type"></code>t</span> = <code class="type"><a href="React.html#TYPEstep">React.step</a></code> </pre> <div class="info "> The type for update steps.<br> </div> <pre><span id="VALcreate"><span class="keyword">val</span> create</span> : <code class="type">unit -> <a href="React.html#TYPEstep">React.step</a></code></pre><div class="info "> <code class="code">create ()</code> is a new update step.<br> </div> <pre><span id="VALexecute"><span class="keyword">val</span> execute</span> : <code class="type"><a href="React.html#TYPEstep">React.step</a> -> unit</code></pre><div class="info "> <code class="code">execute step</code> executes the update step.<br> <b>Raises</b> <code>Invalid_argument</code> if <code class="code">step</code> was already executed.<br> </div> </body></html>