<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> <html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <title>Mu - continuation1.mu</title> <meta name="Generator" content="Vim/8.0"> <meta name="plugin-version" content="vim7.4_v2"> <meta name="syntax" content="none"> <meta name="settings" content="number_lines,use_css,pre_wrap,no_foldcolumn,expand_tabs,line_ids,prevent_copy="> <meta name="colorscheme" content="minimal-light"> <style type="text/css"> <!-- pre { white-space: pre-wrap; font-family: monospace; color: #000000; background-color: #c6c6c6; } body { font-size:12pt; font-family: monospace; color: #000000; background-color: #c6c6c6; } a { color:inherit; } * { font-size:12pt; font-size: 1em; } .muControl { color: #804000; } .muRecipe { color: #ff8700; } .LineNr { } .Constant { color: #008787; } .Special { color: #ff6060; } .Comment { color: #005faf; } --> </style> <script type='text/javascript'> <!-- /* function to open any folds containing a jumped-to line before jumping to it */ function JumpToLine() { var lineNum; lineNum = window.location.hash; lineNum = lineNum.substr(1); /* strip off '#' */ if (lineNum.indexOf('L') == -1) { lineNum = 'L'+lineNum; } lineElem = document.getElementById(lineNum); /* Always jump to new location even if the line was hidden inside a fold, or * we corrected the raw number to a line ID. */ if (lineElem) { lineElem.scrollIntoView(true); } return true; } if ('onhashchange' in window) { window.onhashchange = JumpToLine; } --> </script> </head> <body onload='JumpToLine();'> <a href='https://github.com/akkartik/mu/blob/master/continuation1.mu'>https://github.com/akkartik/mu/blob/master/continuation1.mu</a> <pre id='vimCodeElement'> <span id="L1" class="LineNr"> 1 </span><span class="Comment"># Example program showing that 'return-continuation-until-mark' can 'pause' a</span> <span id="L2" class="LineNr"> 2 </span><span class="Comment"># function call, returning a continuation, and that calling the continuation</span> <span id="L3" class="LineNr"> 3 </span><span class="Comment"># can 'resume' the paused function call.</span> <span id="L4" class="LineNr"> 4 </span><span class="Comment">#</span> <span id="L5" class="LineNr"> 5 </span><span class="Comment"># To run:</span> <span id="L6" class="LineNr"> 6 </span><span class="Comment"># $ git clone <a href="https://github.com/akkartik/mu">https://github.com/akkartik/mu</a></span> <span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ cd mu</span> <span id="L8" class="LineNr"> 8 </span><span class="Comment"># $ ./mu continuation1.mu</span> <span id="L9" class="LineNr"> 9 </span><span class="Comment">#</span> <span id="L10" class="LineNr">10 </span><span class="Comment"># Expected output:</span> <span id="L11" class="LineNr">11 </span><span class="Comment"># 1</span> <span id="L12" class="LineNr">12 </span> <span id="L13" class="LineNr">13 </span><span class="muRecipe">def</span> <a href='continuation1.mu.html#L13'>main</a> [ <span id="L14" class="LineNr">14 </span> <span class="Constant">local-scope</span> <span id="L15" class="LineNr">15 </span> k:continuation <span class="Special"><-</span> <span class="muControl">call-with-continuation-mark</span> <span class="Constant">100/mark</span>, <a href='continuation1.mu.html#L20'>create-yielder</a> <span id="L16" class="LineNr">16 </span> x:num <span class="Special"><-</span> call k <span class="Comment"># should return 1</span> <span id="L17" class="LineNr">17 </span> $print x <span class="Constant">10/newline</span> <span id="L18" class="LineNr">18 </span>] <span id="L19" class="LineNr">19 </span> <span id="L20" class="LineNr">20 </span><span class="muRecipe">def</span> <a href='continuation1.mu.html#L20'>create-yielder</a><span class="muRecipe"> -> </span>n:num [ <span id="L21" class="LineNr">21 </span> <span class="Constant">local-scope</span> <span id="L22" class="LineNr">22 </span> <span class="Constant">load-inputs</span> <span id="L23" class="LineNr">23 </span> <span class="muControl">return-continuation-until-mark</span> <span class="Constant">100/mark</span> <span id="L24" class="LineNr">24 </span> <span class="muControl"> return</span><span class="Constant"> 1</span> <span id="L25" class="LineNr">25 </span>] </pre> </body> </html> <!-- vim: set foldmethod=manual : -->