doc/guide/localhost/SMLofNJStructure

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  22 <a href="./Home">MLton 20180207</a>
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  26 <h1>SMLofNJStructure</h1>
  27 </div>
  28 <div id="content">
  29 <div id="preamble">
  30 <div class="sectionbody">
  31 <div class="listingblock">
  32 <div class="content"><div class="highlight"><pre><span class="k">signature</span><span class="w"> </span><span class="n">SML_OF_NJ</span><span class="w"> </span><span class="p">=</span><span class="w"></span>
  33 <span class="w">   </span><span class="k">sig</span><span class="w"></span>
  34 <span class="w">      </span><span class="k">structure</span><span class="w"> </span><span class="n">Cont</span><span class="p">:</span><span class="w"></span>
  35 <span class="w">         </span><span class="k">sig</span><span class="w"></span>
  36 <span class="w">            </span><span class="k">type</span><span class="w"> </span><span class="n">&#39;a</span><span class="w"> </span><span class="n">cont</span><span class="w"></span>
  37 <span class="w">            </span><span class="k">val</span><span class="w"> </span><span class="n">callcc</span><span class="p">:</span><span class="w"> </span><span class="p">(</span><span class="n">&#39;a</span><span class="w"> </span><span class="n">cont</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">&#39;a</span><span class="p">)</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">&#39;a</span><span class="w"></span>
  38 <span class="w">            </span><span class="k">val</span><span class="w"> </span><span class="n">isolate</span><span class="p">:</span><span class="w"> </span><span class="p">(</span><span class="n">&#39;a</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">unit</span><span class="p">)</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">&#39;a</span><span class="w"> </span><span class="n">cont</span><span class="w"></span>
  39 <span class="w">            </span><span class="k">val</span><span class="w"> </span><span class="n">throw</span><span class="p">:</span><span class="w"> </span><span class="n">&#39;a</span><span class="w"> </span><span class="n">cont</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">&#39;a</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">&#39;b</span><span class="w"></span>
  40 <span class="w">         </span><span class="k">end</span><span class="w"></span>
  41 <span class="w">      </span><span class="k">structure</span><span class="w"> </span><span class="n">SysInfo</span><span class="p">:</span><span class="w"></span>
  42 <span class="w">         </span><span class="k">sig</span><span class="w"></span>
  43 <span class="w">            </span><span class="k">exception</span><span class="w"> </span><span class="n">UNKNOWN</span><span class="w"></span>
  44 <span class="w">            </span><span class="k">datatype</span><span class="w"> </span><span class="n">os_kind</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="n">BEOS</span><span class="w"> </span><span class="p">|</span><span class="w"> </span><span class="n">MACOS</span><span class="w"> </span><span class="p">|</span><span class="w"> </span><span class="n">OS2</span><span class="w"> </span><span class="p">|</span><span class="w"> </span><span class="n">UNIX</span><span class="w"> </span><span class="p">|</span><span class="w"> </span><span class="n">WIN32</span><span class="w"></span>
  45
  46 <span class="w">            </span><span class="k">val</span><span class="w"> </span><span class="n">getHostArch</span><span class="p">:</span><span class="w"> </span><span class="n">unit</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">string</span><span class="w"></span>
  47 <span class="w">            </span><span class="k">val</span><span class="w"> </span><span class="n">getOSKind</span><span class="p">:</span><span class="w"> </span><span class="n">unit</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">os_kind</span><span class="w"></span>
  48 <span class="w">            </span><span class="k">val</span><span class="w"> </span><span class="n">getOSName</span><span class="p">:</span><span class="w"> </span><span class="n">unit</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">string</span><span class="w"></span>
  49 <span class="w">         </span><span class="k">end</span><span class="w"></span>
  50
  51 <span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">exnHistory</span><span class="p">:</span><span class="w"> </span><span class="n">exn</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="n">list</span><span class="w"></span>
  52 <span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">exportFn</span><span class="p">:</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="n">*</span><span class="w"> </span><span class="p">(</span><span class="n">string</span><span class="w"> </span><span class="n">*</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="n">list</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">OS</span><span class="p">.</span><span class="n">Process</span><span class="p">.</span><span class="n">status</span><span class="p">)</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">unit</span><span class="w"></span>
  53 <span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">exportML</span><span class="p">:</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">bool</span><span class="w"></span>
  54 <span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">getAllArgs</span><span class="p">:</span><span class="w"> </span><span class="n">unit</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="n">list</span><span class="w"></span>
  55 <span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">getArgs</span><span class="p">:</span><span class="w"> </span><span class="n">unit</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">string</span><span class="w"> </span><span class="n">list</span><span class="w"></span>
  56 <span class="w">      </span><span class="k">val</span><span class="w"> </span><span class="n">getCmdName</span><span class="p">:</span><span class="w"> </span><span class="n">unit</span><span class="w"> </span><span class="p">-&gt;</span><span class="w"> </span><span class="n">string</span><span class="w"></span>
  57 <span class="w">   </span><span class="k">end</span><span class="w"></span>
  58 </pre></div></div></div>
  59 <div class="paragraph"><p><span class="monospaced">SMLofNJ</span> implements a subset of the structure of the same name
  60 provided in <a href="SMLNJ">Standard ML of New Jersey</a>.  It is included to
  61 make it easier to port programs between the two systems.  The
  62 semantics of these functions may be different than in SML/NJ.</p></div>
  63 <div class="ulist"><ul>
  64 <li>
  65 <p>
  66 <span class="monospaced">structure Cont</span>
  67 </p>
  68 <div class="paragraph"><p>implements continuations.</p></div>
  69 </li>
  70 <li>
  71 <p>
  72 <span class="monospaced">SysInfo.getHostArch ()</span>
  73 </p>
  74 <div class="paragraph"><p>returns the string for the architecture.</p></div>
  75 </li>
  76 <li>
  77 <p>
  78 <span class="monospaced">SysInfo.getOSKind</span>
  79 </p>
  80 <div class="paragraph"><p>returns the OS kind.</p></div>
  81 </li>
  82 <li>
  83 <p>
  84 <span class="monospaced">SysInfo.getOSName ()</span>
  85 </p>
  86 <div class="paragraph"><p>returns the string for the host.</p></div>
  87 </li>
  88 <li>
  89 <p>
  90 <span class="monospaced">exnHistory</span>
  91 </p>
  92 <div class="paragraph"><p>the same as <span class="monospaced">MLton.Exn.history</span>.</p></div>
  93 </li>
  94 <li>
  95 <p>
  96 <span class="monospaced">getCmdName ()</span>
  97 </p>
  98 <div class="paragraph"><p>the same as <span class="monospaced">CommandLine.name ()</span>.</p></div>
  99 </li>
 100 <li>
 101 <p>
 102 <span class="monospaced">getArgs ()</span>
 103 </p>
 104 <div class="paragraph"><p>the same as <span class="monospaced">CommandLine.arguments ()</span>.</p></div>
 105 </li>
 106 <li>
 107 <p>
 108 <span class="monospaced">getAllArgs ()</span>
 109 </p>
 110 <div class="paragraph"><p>the same as <span class="monospaced">getCmdName()::getArgs()</span>.</p></div>
 111 </li>
 112 <li>
 113 <p>
 114 <span class="monospaced">exportFn f</span>
 115 </p>
 116 <div class="paragraph"><p>saves the state of the computation to a file that will apply <span class="monospaced">f</span> to
 117 the command-line arguments upon restart.</p></div>
 118 </li>
 119 <li>
 120 <p>
 121 <span class="monospaced">exportML f</span>
 122 </p>
 123 <div class="paragraph"><p>saves the state of the computation to file <span class="monospaced">f</span> and continue.  Returns
 124 <span class="monospaced">true</span> in the restarted computation and <span class="monospaced">false</span> in the continuing
 125 computation.</p></div>
 126 </li>
 127 </ul></div>
 128 </div>
 129 </div>
 130 </div>
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