contrib/pep8analysis/www/index.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4         <title>Pep/8 Analysis</title>
   5
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  23
  24                 ga('create', 'UA-574578-5', 'xymus.net');
  25                 ga('send', 'pageview');
  26
  27                 // Both Viz and Pep8 use emscripten
  28                 // We put aside the module of each program and bring it back before each use
  29                 var VizModule = null
  30                 $(document).ready(function() {
  31                         // Report full loading
  32                         $("#loading").hide()
  33                         $("#analyze").prop('disabled', false)
  34
  35                 });
  36
  37                 function exec() {
  38                         // Clean output console
  39                         $("#console").text("")
  40
  41                         // Get code
  42                         var input = editor.getValue()
  43
  44                         // Update GA stats
  45                         ga('trackEvent', 'Action', 'Analyze')
  46
  47                         // Invoke the full Nit program
  48                         Module = Pep8Module
  49                         ret = Module['callMain']([input])
  50
  51                         // Shot and set color of output console
  52                         $("#consolePanel").removeClass("panel-success panel-warning panel-danger")
  53                         $("#consolePanel").show()
  54                         var analysis = $("#consolePanel").text();
  55                         if (analysis.indexOf("Error") >= 0) {
  56                                 $("#consolePanel").addClass("panel-danger")
  57                                 ga('trackEvent', 'Result', 'Error')
  58                         }
  59                         else if (analysis.indexOf("Warning") >= 0) {
  60                                 $("#consolePanel").addClass("panel-warning")
  61                                 ga('trackEvent', 'Result', 'Warning')
  62                         }
  63                         else {
  64                                 $("#consolePanel").addClass("panel-success")
  65                                 ga('trackEvent', 'Result', 'Success')
  66                         }
  67                 }
  68
  69                 function load(file) {
  70                         // Load a sample program
  71                         $.get('samples/' + file, function(data){
  72                                 editor.setValue(data)
  73                         })
  74                 }
  75
  76                 function show_graph(source) {
  77                         Module = VizModule
  78                         var res = Viz(source, "svg", "dot")
  79                         VizModule = Module
  80                         $("#graph").html(res)
  81                 }
  82         </script>
  83 </head>
  84 <body>
  85
  86 <nav class="navbar navbar-default" role="navigation">
  87   <div class="container-fluid">
  88     <div class="navbar-header">
  89       <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
  90         <span class="sr-only">Toggle navigation</span>
  91                 <span class="icon-bar"></span>
  92                 <span class="icon-bar"></span>
  93                 <span class="icon-bar"></span>
  94       </button>
  95       <a class="navbar-brand">Pep/8 Analysis</a>
  96     </div>
  97
  98     <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
  99       <ul class="nav navbar-nav">
 100         <li class="active"><a>Web interface</a></li>
 101         <li><a href="https://github.com/privat/nit/tree/master/contrib/pep8analysis/">Tool source and manual</a></li>
 102       </ul>
 103       <ul class="nav navbar-nav navbar-right">
 104         <li><a href="http://nitlanguage.org/">nitlanguage.org</a></li>
 105         <li><a href="https://code.google.com/p/pep8-1/">Pep/8 project</a></li>
 106       </ul>
 107     </div>
 108   </div>
 109 </nav>
 110
 111 <div class="container-fluid">
 112         <div class="alert alert-warning" id="loading">Loading the tool... This may take some time.</div>
 113
 114         <div class="row">
 115           <div class="col-sm-12 col-lg-6">
 116                 <div class="panel panel-default" id="panelIntro">
 117                         <div class="panel-heading">Description and Usage
 118                                 <button type="button" class="close" onClick="$('#panelIntro').hide()" aria-hidden="true">&times;</button>
 119                         </div>
 120                         <div class="panel-body" id="code-panel">
 121                                 <p>This tools finds strange behavior in Pep/8 programs by exploring all detectable execution paths.</p>
 122                                 <p>Upon analyzing a program, this tool reports dead code blocks and data within the execution path. It also detects wrongful use of data such as accessing uninitialized memory, printing a word and reading code.</p>
 123                                 <p><strong>To use:</strong> copy-paste your code in the source code block and launch the analysis using the <em>Analyze program</em> button.</p>
 124                         </div>
 125                 </div>
 126
 127                 <div class="panel panel-default">
 128                         <div class="panel-heading">Pep/8 Source Code</div>
 129                         <div class="panel-body" id="code-panel">
 130                                 <textarea id="listing"></textarea>
 131                                 <script>
 132                                         var editor = CodeMirror.fromTextArea(listing, {
 133                                                 lineNumbers: true,
 134                                                 mode: "z80"
 135                                         });
 136                                         editor.setSize("100%", 500);
 137                                 </script>
 138
 139                                 <div class="btn-group">
 140                                   <button type="button" class="btn btn-default" id="analyze" onclick="exec();" disabled>Analyze program</button>
 141                                   <button type="button" class="btn btn-default dropdown-toggle" data-toggle="dropdown">
 142                                          <span class="glyphicon glyphicon-folder-open"></span>
 143                                         Load sample program
 144                                         <span class="caret"></span>
 145                                   </button>
 146                                   <ul class="dropdown-menu">
 147                                         <li><a onclick="load('02-fibo.pep')">fibo.pep - clean program </a></li>
 148                                         <li><a onclick="load('06-calc-non-pur.pep');">calc-non-pur.pep - self rewriting program </a></li>
 149                                         <li><a onclick="load('types.pep');"/>types.pep - strange data manipulation </a></li>
 150                                         <li><a onclick="load('directive-in-code.pep');">directive-in-code.pep - mixed directives and instructions</a></li>
 151                                   </ul>
 152                                 </div>
 153                         </div>
 154                 </div>
 155           </div>
 156
 157           <div class="clearfix visible-xs"></div>
 158           <div class="col-sm-12 col-lg-6">
 159                 <div class="panel" id="consolePanel" style="display: none;">
 160                         <div class="panel-heading">Analysis Result</div>
 161                         <div class="panel-body">
 162                                 <samp id="console"></samp>
 163                                 <button type="button" class="btn btn-default" onclick="$('#panelGraph').show();$('#panelGraphExp').show();">
 164                                         Show control flow graph</button>
 165                                 <em class="pull-right" id="panelGraphExp" style="display: none;">The graph is at the bottom of the page...</em>
 166                         </div>
 167                 </div>
 168           </div>
 169
 170           <div class="col-sm-12 col-lg-6">
 171                 <div class="panel panel-default" id="panelRef">
 172                         <div class="panel-heading">Output Documentation
 173                                 <button type="button" class="close" onClick="$('#panelRef').hide()" aria-hidden="true">&times;</button>
 174                         </div>
 175                         <div class="panel-body" id="code-panel">
 176                                 <h4>Line and memory references</h4>
 177                                 <p>Shorthand are used in the error messages, some refer directly to the line numbers others to the address in the memory of the running program.</p>
 178                                 <table class="table table-striped">
 179                                 <tr>
 180                                         <th>Shorthand</th>
 181                                         <th>Description</th>
 182                                 </tr><tr>
 183                                         <td>web:5</td>
 184                                         <td>Source line 5</td>
 185                                 </tr><tr>
 186                                         <td>L8</td>
 187                                         <td>Source line 8</td>
 188                                 </tr><tr>
 189                                         <td>rA, rX</td>
 190                                         <td>Registers A, X</td>
 191                                 </tr><tr>
 192                                         <td>m24</td>
 193                                         <td>Memory at address 24 (bytes)</td>
 194                                 </tr><tr>
 195                                         <td>instr@m24</td>
 196                                         <td>Intruction at address 24 (bytes). Usually, this would be the (24/4+1=) 7th instruction, if there is no data blocks. And the 7th line if there is no data blocks or comments.</td>
 197                                 </tr>
 198                                 </table>
 199
 200                                 <h4>Common errors and warnings</h4>
 201
 202                                 <p>Note that the tool reports <em>possible</em> errors and strange behaviors. For an advanced or expert user, it may raise errors on correct code.</p>
 203
 204                                 <table class="table table-striped">
 205                                 <tr>
 206                                         <th>Error</th>
 207                                         <th>Meaning</th>
 208                                 </tr><tr>
 209                                         <td>... the CFG may be wrong</td>
 210                                         <td>The program structure is too complex to analyze. This happens when jumping to dynamic addresses and when using switch statements.</td>
 211                                 </tr><tr>
 212                                         <td>unreachable instructions</td>
 213                                         <td>There's dead code.</td>
 214                                 </tr><tr>
 215                                         <td>data in program flow</td>
 216                                         <td>The program may execute raw data. There's probably a <code>BR</code> missing.</td>
 217                                 </tr><tr>
 218                                         <td>overwriting code at...</td>
 219                                         <td>An instruction writes over an existing instruction (probably your code).</td>
 220                                 </tr><tr>
 221                                         <td>expected "type" in "address", got "something"</td>
 222                                         <td>An instruction uses data with an unexepected type. It may be a <code>CHARO</code> using something other than a char. Or a copy of uninitialized data over an initialized word.<br>
 223                                         </td>
 224                                 </tr>
 225                                 </table>
 226                         </div>
 227                 </div>
 228           </div>
 229         </div>
 230
 231           <div class="col-sm-12 col-lg-12">
 232                 <div class="panel panel-default" id="panelGraph" style="display: none;">
 233                         <div class="panel-heading">Control Flow Graph (CFG)
 234                                 <button type="button" class="close" onClick="$('#panelGraph').hide()" aria-hidden="true">&times;</button>
 235                         </div>
 236                         <div class="panel-body">
 237                                 <div id="graph"></div>
 238                         </div>
 239                 </div>
 240           </div>
 241
 242         <script>
 243                 var Module = {
 244                         'print': function(text) {
 245                                 $("#console").append(text + "<br>")
 246                         },
 247                         'noInitialRun': true,
 248                         'TOTAL_MEMORY': 512000000
 249                 }
 250         </script>
 251         <script src="pep8analysis.js"></script>
 252         <script>Pep8Module = Module</script>
 253         <script src="viz.js"></script>
 254 </div>
 255
 256 </body>
 257 </html>