<?xml version="1.0" encoding="utf-8" ?> <!-- for emacs: -*- coding: utf-8 -*- --> <!-- Apache may like this line in the file .htaccess: AddCharset utf-8 .html --> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1 plus MathML 2.0 plus SVG 1.1//EN" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg-flat.dtd" > <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head><title>frames -- get the frames associated to a closure</title> <link rel="stylesheet" type="text/css" href="../../../../Macaulay2/Style/doc.css"/> </head> <body> <table class="buttons"> <tr> <td><div><a href="_from.html">next</a> | <a href="___Fraction__Field.html">previous</a> | <a href="_from.html">forward</a> | <a href="___Fraction__Field.html">backward</a> | up | <a href="index.html">top</a> | <a href="master.html">index</a> | <a href="toc.html">toc</a> | <a href="http://www.math.uiuc.edu/Macaulay2/">Macaulay2 web site</a></div> </td> </tr> </table> <hr/> <div><h1>frames -- get the frames associated to a closure</h1> <div class="single"><h2>Synopsis</h2> <ul><li><div class="list"><dl class="element"><dt class="heading">Usage: </dt><dd class="value"><div><tt>frames f</tt></div> </dd></dl> </div> </li> <li><div class="single">Inputs:<ul><li><span><tt>f</tt>, () or <span>a <a href="___Symbol.html">symbol</a></span>, <span>a <a href="___Function.html">function</a></span>, or <span>an object of class <a href="___Pseudocode.html" title="the class of pseudocodes">Pseudocode</a></span></span></li> </ul> </div> </li> <li><div class="single">Outputs:<ul><li><span>a list of mutable lists, the frames attached to the closure <tt>f</tt> or, if <tt>f</tt> is <tt>()</tt>, then the frames attached to the current lexical scope</span></li> </ul> </div> </li> </ul> </div> <div class="single"><h2>Description</h2> <div>This function is occasionally useful as a debugging tool.<table class="examples"><tr><td><pre>i1 : f = (x,y,z) -> t -> t o1 = f o1 : FunctionClosure</pre> </td></tr> <tr><td><pre>i2 : g = f(111,222,"hi there") o2 = g o2 : FunctionClosure</pre> </td></tr> <tr><td><pre>i3 : frames g o3 = {MutableList{...3...}, MutableList{}} o3 : List</pre> </td></tr> <tr><td><pre>i4 : peek first oo o4 = MutableList{111, 222, hi there}</pre> </td></tr> </table> </div> </div> <div class="waystouse"><h2>Ways to use <tt>frames</tt> :</h2> <ul><li>frames(Function)</li> <li>frames(Pseudocode)</li> <li>frames(Sequence)</li> <li>frames(Symbol)</li> </ul> </div> </div> </body> </html>