ext/wasm/module-symbols.html

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   7     <title>sqlite3 Module Symbols</title>
   8     <style>
   9       body {
  10           font-size: 12.5pt;
  11           padding-bottom: 1em;
  12       }
  13       </style>
  14   </head>
  15   <body>
  16 <div class="fossil-doc" data-title="sqlite3 Module Symbols"><!-- EXTRACT_BEGIN -->
  17 <!--
  18     The part of this doc wrapped in div.fossil-doc gets snipped out
  19     from the canonical copy in the main tree (ext/wasm/module-symbols.html)
  20     and added to the wasm docs repository, where it's served from
  21     fossil.
  22 -->
  23   <style>
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  53     h1::before, h2::before, h3::before, h4::before {
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  60     }
  61     .func-wasm {
  62
  63     }
  64     .func-wasm::after {
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  66         color: saddlebrown;
  67         /* ^^^^ the color must be legible in both "bright" and "dark"
  68            s    ite themes. */
  69         font-size: 0.65em;
  70     /* baseline-shift: super; */
  71         vertical-align: super;
  72     }
  73   </style>
  74   <p id='module-load-status'><strong>Loading WASM module...</strong>
  75     If this takes "a long time" it may have failed and the browser's
  76     dev console may contain hints as to why.
  77   </p>
  78
  79   <p>
  80     This page lists the SQLite3 APIs exported
  81     by <code>sqlite3.wasm</code> and exposed to clients
  82     by <code>sqlite3.js</code>. These lists are generated dynamically
  83     by loading the JS/WASM module and introspecting it, with the following
  84     caveats:
  85   </p>
  86
  87   <ul>
  88     <li>Some APIs are explicitly filtered out of these lists because
  89       they are strictly for internal use within the JS/WASM APIs and
  90       its own test code.
  91     </li>
  92     <li>This page runs in the main UI thread so cannot see features
  93       which are only available in a Worker thread. If this page were
  94       to function via a Worker, it would not be able to see
  95       functionality only available in the main thread. Either way, it
  96       would be missing certain APIs.
  97     </li>
  98   </ul>
  99
 100   <div class='initially-hidden'>
 101
 102     <p>This page exposes a global symbol named <code>sqlite3</code>
 103       which can be inspected using the browser's dev tools.
 104     </p>
 105
 106     <p>Jump to...</p>
 107     <ul>
 108       <li><a href='#sqlite3-namespace'><code>sqlite3</code> namespace</a></li>
 109       <li><a href='#sqlite3-version'><code>sqlite3.version</code> object</a></li>
 110       <li><a href='#sqlite3-functions'><code>sqlite3_...()</code> functions</a></li>
 111       <li><a href='#sqlite3-constants'><code>SQLITE_...</code> constants</a></li>
 112       <li><a href='#sqlite3.oo1'><code>sqlite3.oo1</code> namespace</a>
 113         <!--ul>
 114           <li><a href='#sqlite3.oo1.DB'><code>sqlite3.oo1.DB</code></a></li>
 115           <li><a href='#sqlite3.oo1.Stmt'><code>sqlite3.oo1.Stmt</code></a></li>
 116         </ul-->
 117       </li>
 118       <li><a href='#sqlite3.wasm'><code>sqlite3.wasm</code> namespace</a></li>
 119       <li><a href='#sqlite3.wasm.pstack'><code>sqlite3.wasm.pstack</code> namespace</a></li>
 120       <li><a href='#compile-options'>Compilation options used in this module build</a></li>
 121     </ul>
 122
 123     <a id="sqlite3-namespace"></a>
 124     <h1><code>sqlite3</code> Namespace</h1>
 125     <p>
 126       The <code>sqlite3</code> namespace object exposes the following...
 127     </p>
 128     <div id='list-namespace' class='pseudolist'></div>
 129
 130     <a id="sqlite3-version"></a>
 131     <h1><code>sqlite3.version</code> Object</h1>
 132     <p>
 133       The <code>sqlite3.version</code> object exposes the following...
 134     </p>
 135     <div id='list-version' class='pseudolist wide wrap-anywhere'></div>
 136
 137     <a id="sqlite3-functions"></a>
 138     <h1><code>sqlite3_...()</code> Function List</h1>
 139
 140     <p>The <code>sqlite3.capi</code> namespace exposes the following
 141       <a href='https://sqlite.org/c3ref/funclist.html'><code>sqlite3_...()</code>
 142         functions</a>...
 143     </p>
 144     <div id='list-functions' class='pseudolist wide'></div>
 145     <p>
 146       <code class='func-wasm'></code> = function is specific to the JS/WASM
 147       bindings, not part of the C API.
 148     </p>
 149
 150     <a id="sqlite3-constants"></a>
 151     <h1><code>SQLITE_...</code> Constants</h1>
 152
 153     <p>The <code>sqlite3.capi</code> namespace exposes the following
 154       <a href='https://sqlite.org/c3ref/constlist.html'><code>SQLITE_...</code>
 155         constants</a>...
 156     </p>
 157     <div id='list-constants' class='pseudolist wide'></div>
 158
 159     <a id="sqlite3.oo1"></a>
 160     <h1><code>sqlite3.oo1</code> Namespace</h1>
 161     <p>
 162       The <code>sqlite3.oo1</code> namespace exposes the following...
 163     </p>
 164     <div id='list-oo1' class='pseudolist'></div>
 165
 166     <a id="sqlite3.wasm"></a>
 167     <h1><code>sqlite3.wasm</code> Namespace</h1>
 168     <p>
 169       The <code>sqlite3.wasm</code> namespace exposes the
 170       following...
 171     </p>
 172     <div id='list-wasm' class='pseudolist'></div>
 173
 174     <a id="sqlite3.wasm.pstack"></a>
 175     <h1><code>sqlite3.wasm.pstack</code> Namespace</h1>
 176     <p>
 177       The <code>sqlite3.wasm.pstack</code> namespace exposes the
 178       following...
 179     </p>
 180     <div id='list-wasm-pstack' class='pseudolist'></div>
 181
 182     <a id="compile-options"></a>
 183     <h1>Compilation Options</h1>
 184     <p>
 185       <code>SQLITE_...</code> compilation options used in this build
 186       of <code>sqlite3.wasm</code>...
 187     </p>
 188     <div id='list-compile-options' class='pseudolist wide2'></div>
 189
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 432         const cmpIcase = (a,b)=>a.toLowerCase().localeCompare(b.toLowerCase());
 433         const renderX = function(tgtElem, container, keys){
 434             for(const k of keys.sort(cmpIcase)){
 435                 renderGeneric(k, container[k], tgtElem);
 436             }
 437         };
 438
 439         const excludeNamespace = ['scriptInfo','StructBinder'];
 440         renderX(
 441             E('#list-namespace'), sqlite3,
 442             Object.keys(sqlite3)
 443                 .filter((v)=>excludeNamespace.indexOf(v)<0)
 444         );
 445         renderX(
 446             E('#list-version'), sqlite3.version,
 447             Object.keys(sqlite3.version)
 448         );
 449
 450         /* sqlite3_...() and SQLITE_... */
 451         const lists = {c: [/*constants*/], f: [/*functions*/],
 452                        s: [/*structs*/]};
 453         /* Exclude these from the function list... */
 454         const excludeCapi = [
 455             // WASMFS stuff:
 456             'sqlite3_wasmfs_filename_is_persistent',
 457             'sqlite3_wasmfs_opfs_dir'
 458         ];
 459         for(const [k,v] of Object.entries(capi)){
 460             if(k.startsWith('SQLITE_')){
 461                 lists.c.push(k);
 462             }else if(k.startsWith('sqlite3_')){
 463                 if(excludeCapi.indexOf(k)>=0) continue;
 464                 if(v.structInfo){
 465                     // assume this is a StructType-type.
 466                     continue;
 467                 }
 468                 lists.f.push(k);
 469             }
 470         }
 471         lists.c.sort().forEach(renderConst);
 472         lists.f.sort().forEach(renderFunc);
 473         lists.c = lists.f = null;
 474
 475         renderX(E('#list-oo1'), sqlite3.oo1,
 476                 Object.keys(sqlite3.oo1) );
 477
 478         const excludeWasm = ['ctype'];
 479         renderX(E('#list-wasm'),
 480                 wasm, Object.keys(wasm).filter((v)=>{
 481                     return !v.startsWith('sqlite3_wasm_')
 482                         && excludeWasm.indexOf(v)<0;
 483                 }));
 484         const psKeys = Object.keys(wasm.pstack);
 485         psKeys.push('pointer','quota','remaining');
 486         renderX(E('#list-wasm-pstack'), wasm.pstack, psKeys);
 487
 488         const cou = wasm.compileOptionUsed();
 489         //const cou2 = Object.create(null);
 490         //Object.entries(cou).forEach((e)=>cou2['SQLITE_'+e[0]] = e[1]);
 491         renderX(E('#list-compile-options'), cou, Object.keys(cou));
 492     };
 493
 494     /**
 495        This is a module object for use with the emscripten-installed
 496        sqlite3InitModule() factory function.
 497     */
 498     const myModule = {
 499         print: (...args)=>{console.log(...args)},
 500         printErr: (...args)=>{console.error(...args)},
 501         /**
 502            Called by the Emscripten module init bits to report loading
 503            progress. It gets passed an empty argument when loading is done
 504            (after onRuntimeInitialized() and any this.postRun callbacks
 505            have been run).
 506         */
 507         setStatus: function f(text){
 508             if(!f.last){
 509                 f.last = { text: '', step: 0 };
 510                 f.ui = {
 511                     status: E('#module-load-status')
 512                 };
 513             }
 514             if(text === f.last.text) return;
 515             f.last.text = text;
 516             ++f.last.step;
 517             if(text) {
 518                 f.ui.status.classList.remove('hidden');
 519                 f.ui.status.innerText = text;
 520             }else{
 521                 f.ui.status.classList.add('hidden');
 522                 EAll('.initially-hidden').forEach((e)=>{
 523                     e.classList.remove('initially-hidden');
 524                 });
 525             }
 526         }
 527     }/*myModule*/;
 528     self.sqlite3InitModule(myModule).then(renderIt);
 529 })();</script>
 530 </div><!-- .fossil-doc EXTRACT_END -->
 531 </body></html>