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searchdb.js
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// Copyright 2010 The Emscripten Authors. All rights reserved.
// Emscripten is available under two separate licenses, the MIT license and the
// University of Illinois/NCSA Open Source License. Both these licenses can be
// found in the LICENSE file.
// The Module object: Our interface to the outside world. We import
// and export values on it. There are various ways Module can be used:
// 1. Not defined. We create it here
// 2. A function parameter, function(Module) { ..generated code.. }
// 3. pre-run appended it, var Module = {}; ..generated code..
// 4. External script tag defines var Module.
// We need to check if Module already exists (e.g. case 3 above).
// Substitution will be replaced with actual code on later stage of the build,
// this way Closure Compiler will not mangle it (e.g. case 4. above).
// Note that if you want to run closure, and also to use Module
// after the generated code, you will need to define var Module = {};
// before the code. Then that object will be used in the code, and you
// can continue to use Module afterwards as well.
var Module = typeof Module !== 'undefined' ? Module : {};
// --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
if (!Module.expectedDataFileDownloads) {
Module.expectedDataFileDownloads = 0;
Module.finishedDataFileDownloads = 0;
}
Module.expectedDataFileDownloads++;
(function() {
var loadPackage = function(metadata) {
var PACKAGE_PATH;
if (typeof window === 'object') {
PACKAGE_PATH = window['encodeURIComponent'](window.location.pathname.toString().substring(0, window.location.pathname.toString().lastIndexOf('/')) + '/');
} else if (typeof location !== 'undefined') {
// worker
PACKAGE_PATH = encodeURIComponent(location.pathname.toString().substring(0, location.pathname.toString().lastIndexOf('/')) + '/');
} else {
throw 'using preloaded data can only be done on a web page or in a web worker';
}
var PACKAGE_NAME = 'searchdb.data';
var REMOTE_PACKAGE_BASE = 'searchdb.data';
if (typeof Module['locateFilePackage'] === 'function' && !Module['locateFile']) {
Module['locateFile'] = Module['locateFilePackage'];
err('warning: you defined Module.locateFilePackage, that has been renamed to Module.locateFile (using your locateFilePackage for now)');
}
var REMOTE_PACKAGE_NAME = Module['locateFile'] ? Module['locateFile'](REMOTE_PACKAGE_BASE, '') : REMOTE_PACKAGE_BASE;
var REMOTE_PACKAGE_SIZE = metadata.remote_package_size;
var PACKAGE_UUID = metadata.package_uuid;
function fetchRemotePackage(packageName, packageSize, callback, errback) {
var xhr = new XMLHttpRequest();
xhr.open('GET', packageName, true);
xhr.responseType = 'arraybuffer';
xhr.onprogress = function(event) {
var url = packageName;
var size = packageSize;
if (event.total) size = event.total;
if (event.loaded) {
if (!xhr.addedTotal) {
xhr.addedTotal = true;
if (!Module.dataFileDownloads) Module.dataFileDownloads = {};
Module.dataFileDownloads[url] = {
loaded: event.loaded,
total: size
};
} else {
Module.dataFileDownloads[url].loaded = event.loaded;
}
var total = 0;
var loaded = 0;
var num = 0;
for (var download in Module.dataFileDownloads) {
var data = Module.dataFileDownloads[download];
total += data.total;
loaded += data.loaded;
num++;
}
total = Math.ceil(total * Module.expectedDataFileDownloads/num);
if (Module['setStatus']) Module['setStatus']('Downloading data... (' + loaded + '/' + total + ')');
} else if (!Module.dataFileDownloads) {
if (Module['setStatus']) Module['setStatus']('Downloading data...');
}
};
xhr.onerror = function(event) {
throw new Error("NetworkError for: " + packageName);
}
xhr.onload = function(event) {
if (xhr.status == 200 || xhr.status == 304 || xhr.status == 206 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
var packageData = xhr.response;
callback(packageData);
} else {
throw new Error(xhr.statusText + " : " + xhr.responseURL);
}
};
xhr.send(null);
};
function handleError(error) {
console.error('package error:', error);
};
var fetchedCallback = null;
var fetched = Module['getPreloadedPackage'] ? Module['getPreloadedPackage'](REMOTE_PACKAGE_NAME, REMOTE_PACKAGE_SIZE) : null;
if (!fetched) fetchRemotePackage(REMOTE_PACKAGE_NAME, REMOTE_PACKAGE_SIZE, function(data) {
if (fetchedCallback) {
fetchedCallback(data);
fetchedCallback = null;
} else {
fetched = data;
}
}, handleError);
function runWithFS() {
function assert(check, msg) {
if (!check) throw msg + new Error().stack;
}
Module['FS_createPath']('/', 'ob_datadir', true, true);
Module['FS_createPath']('/', 'web_data', true, true);
function DataRequest(start, end, audio) {
this.start = start;
this.end = end;
this.audio = audio;
}
DataRequest.prototype = {
requests: {},
open: function(mode, name) {
this.name = name;
this.requests[name] = this;
Module['addRunDependency']('fp ' + this.name);
},
send: function() {},
onload: function() {
var byteArray = this.byteArray.subarray(this.start, this.end);
this.finish(byteArray);
},
finish: function(byteArray) {
var that = this;
Module['FS_createDataFile'](this.name, null, byteArray, true, true, true); // canOwn this data in the filesystem, it is a slide into the heap that will never change
Module['removeRunDependency']('fp ' + that.name);
this.requests[this.name] = null;
}
};
var files = metadata.files;
for (var i = 0; i < files.length; ++i) {
new DataRequest(files[i].start, files[i].end, files[i].audio).open('GET', files[i].filename);
}
function processPackageData(arrayBuffer) {
Module.finishedDataFileDownloads++;
assert(arrayBuffer, 'Loading data file failed.');
assert(arrayBuffer instanceof ArrayBuffer, 'bad input to processPackageData');
var byteArray = new Uint8Array(arrayBuffer);
var curr;
// copy the entire loaded file into a spot in the heap. Files will refer to slices in that. They cannot be freed though
// (we may be allocating before malloc is ready, during startup).
var ptr = Module['getMemory'](byteArray.length);
Module['HEAPU8'].set(byteArray, ptr);
DataRequest.prototype.byteArray = Module['HEAPU8'].subarray(ptr, ptr+byteArray.length);
var files = metadata.files;
for (var i = 0; i < files.length; ++i) {
DataRequest.prototype.requests[files[i].filename].onload();
}
Module['removeRunDependency']('datafile_searchdb.data');
};
Module['addRunDependency']('datafile_searchdb.data');
if (!Module.preloadResults) Module.preloadResults = {};
Module.preloadResults[PACKAGE_NAME] = {fromCache: false};
if (fetched) {
processPackageData(fetched);
fetched = null;
} else {
fetchedCallback = processPackageData;
}
}
if (Module['calledRun']) {
runWithFS();
} else {
if (!Module['preRun']) Module['preRun'] = [];
Module["preRun"].push(runWithFS); // FS is not initialized yet, wait for it
}
}
loadPackage({"files": [{"start": 0, "audio": 0, "end": 23731, "filename": "/ob_datadir/atomtyp.h"}, {"start": 23731, "audio": 0, "end": 53600, "filename": "/ob_datadir/torsion.txt"}, {"start": 53600, "audio": 0, "end": 2424003, "filename": "/ob_datadir/platinum-fragment.txt"}, {"start": 2424003, "audio": 0, "end": 3182532, "filename": "/ob_datadir/fragments.txt"}, {"start": 3182532, "audio": 0, "end": 3184448, "filename": "/ob_datadir/svgformat.script"}, {"start": 3184448, "audio": 0, "end": 3187451, "filename": "/ob_datadir/ringtyp.txt"}, {"start": 3187451, "audio": 0, "end": 3191578, "filename": "/ob_datadir/mr.txt"}, {"start": 3191578, "audio": 0, "end": 3198282, "filename": "/ob_datadir/superatom.txt"}, {"start": 3198282, "audio": 0, "end": 3200131, "filename": "/ob_datadir/templates.sdf"}, {"start": 3200131, "audio": 0, "end": 3200591, "filename": "/ob_datadir/eem2015ha.txt"}, {"start": 3200591, "audio": 0, "end": 3211756, "filename": "/ob_datadir/mmffdef.par"}, {"start": 3211756, "audio": 0, "end": 3224040, "filename": "/ob_datadir/bondtyp.h"}, {"start": 3224040, "audio": 0, "end": 3234195, "filename": "/ob_datadir/atomtyp.txt"}, {"start": 3234195, "audio": 0, "end": 3234760, "filename": "/ob_datadir/mmff94.ff"}, {"start": 3234760, "audio": 0, "end": 3239117, "filename": "/ob_datadir/logp.txt"}, {"start": 3239117, "audio": 0, "end": 3276585, "filename": "/ob_datadir/torlib.h"}, {"start": 3276585, "audio": 0, "end": 3277045, "filename": "/ob_datadir/eem2015bm.txt"}, {"start": 3277045, "audio": 0, "end": 3284175, "filename": "/ob_datadir/phmodel.txt"}, {"start": 3284175, "audio": 0, "end": 3293317, "filename": "/ob_datadir/patty.rules"}, {"start": 3293317, "audio": 0, "end": 3302207, "filename": "/ob_datadir/MACCS.txt"}, {"start": 3302207, "audio": 0, "end": 3429641, "filename": "/ob_datadir/mm2.prm"}, {"start": 3429641, "audio": 0, "end": 3430781, "filename": "/ob_datadir/CMakeLists.txt"}, {"start": 3430781, "audio": 0, "end": 3432089, "filename": "/ob_datadir/mmffdfsb.par"}, {"start": 3432089, "audio": 0, "end": 3444599, "filename": "/ob_datadir/UFF.prm"}, {"start": 3444599, "audio": 0, "end": 3454562, "filename": "/ob_datadir/torlib.txt"}, {"start": 3454562, "audio": 0, "end": 3456876, "filename": "/ob_datadir/mmffbndk.par"}, {"start": 3456876, "audio": 0, "end": 3471572, "filename": "/ob_datadir/resdata.txt"}, {"start": 3471572, "audio": 0, "end": 3472141, "filename": "/ob_datadir/mmff94s.ff"}, {"start": 3472141, "audio": 0, "end": 3810735, "filename": "/ob_datadir/gaff.dat"}, {"start": 3810735, "audio": 0, "end": 3814635, "filename": "/ob_datadir/bin2hex.pl"}, {"start": 3814635, "audio": 0, "end": 3817053, "filename": "/ob_datadir/psa.txt"}, {"start": 3817053, "audio": 0, "end": 3828028, "filename": "/ob_datadir/types.txt"}, {"start": 3828028, "audio": 0, "end": 3842186, "filename": "/ob_datadir/mmffchg.par"}, {"start": 3842186, "audio": 0, "end": 3848128, "filename": "/ob_datadir/mmffvdw.par"}, {"start": 3848128, "audio": 0, "end": 3872668, "filename": "/ob_datadir/gaff.prm"}, {"start": 3872668, "audio": 0, "end": 3877235, "filename": "/ob_datadir/mmffprop.par"}, {"start": 3877235, "audio": 0, "end": 3877709, "filename": "/ob_datadir/genheaders.sh"}, {"start": 3877709, "audio": 0, "end": 4072340, "filename": "/ob_datadir/fragment-index.txt"}, {"start": 4072340, "audio": 0, "end": 4073115, "filename": "/ob_datadir/space-groups.xsl"}, {"start": 4073115, "audio": 0, "end": 4128967, "filename": "/ob_datadir/mmffs_tor.par"}, {"start": 4128967, "audio": 0, "end": 4134459, "filename": "/ob_datadir/bondtyp.txt"}, {"start": 4134459, "audio": 0, "end": 4240345, "filename": "/ob_datadir/space-groups.txt"}, {"start": 4240345, "audio": 0, "end": 4245392, "filename": "/ob_datadir/mmffoop.par"}, {"start": 4245392, "audio": 0, "end": 4249714, "filename": "/ob_datadir/mmffpbci.par"}, {"start": 4249714, "audio": 0, "end": 4250174, "filename": "/ob_datadir/eem2015bn.txt"}, {"start": 4250174, "audio": 0, "end": 4319961, "filename": "/ob_datadir/resdata.h"}, {"start": 4319961, "audio": 0, "end": 4332153, "filename": "/ob_datadir/mmffstbn.par"}, {"start": 4332153, "audio": 0, "end": 4371383, "filename": "/ob_datadir/SMARTS_InteLigand.txt"}, {"start": 4371383, "audio": 0, "end": 4427151, "filename": "/ob_datadir/mmfftor.par"}, {"start": 4427151, "audio": 0, "end": 4430537, "filename": "/ob_datadir/mpC.txt"}, {"start": 4430537, "audio": 0, "end": 4430997, "filename": "/ob_datadir/eem2015ba.txt"}, {"start": 4430997, "audio": 0, "end": 4436071, "filename": "/ob_datadir/mmffs_oop.par"}, {"start": 4436071, "audio": 0, "end": 4536498, "filename": "/ob_datadir/mmffang.par"}, {"start": 4536498, "audio": 0, "end": 4590183, "filename": "/ob_datadir/splash.png"}, {"start": 4590183, "audio": 0, "end": 4608345, "filename": "/ob_datadir/phmodeldata.h"}, {"start": 4608345, "audio": 0, "end": 4658827, "filename": "/ob_datadir/types.h"}, {"start": 4658827, "audio": 0, "end": 4705502, "filename": "/ob_datadir/chemdrawcdx.h"}, {"start": 4705502, "audio": 0, "end": 4705962, "filename": "/ob_datadir/eem2015hn.txt"}, {"start": 4705962, "audio": 0, "end": 4737784, "filename": "/ob_datadir/babel_povray3.inc"}, {"start": 4737784, "audio": 0, "end": 5428216, "filename": "/ob_datadir/atomization-energies.txt"}, {"start": 5428216, "audio": 0, "end": 5428676, "filename": "/ob_datadir/eem2015hm.txt"}, {"start": 5428676, "audio": 0, "end": 5447532, "filename": "/ob_datadir/mmffbond.par"}, {"start": 5447532, "audio": 0, "end": 5449932, "filename": "/ob_datadir/plugindefines.txt"}, {"start": 5449932, "audio": 0, "end": 5450376, "filename": "/ob_datadir/eem.txt"}, {"start": 5450376, "audio": 0, "end": 5453473, "filename": "/ob_datadir/qeq.txt"}, {"start": 5453473, "audio": 0, "end": 5457229, "filename": "/ob_datadir/patterns.txt"}, {"start": 5457229, "audio": 0, "end": 5462103, "filename": "/ob_datadir/eqeqIonizations.txt"}, {"start": 5462103, "audio": 0, "end": 5478857, "filename": "/ob_datadir/ghemical.prm"}, {"start": 5478857, "audio": 0, "end": 6944025, "filename": "/web_data/core.smi"}, {"start": 6944025, "audio": 0, "end": 9209928, "filename": "/RCSRnets.arc"}], "remote_package_size": 9209928, "package_uuid": "7441f2f5-fc26-43f7-a862-9a1bb694dcd4"});
})();
/* Set up environment variables */
/* https://kripken.github.io/emscripten-site/docs/porting/connecting_cpp_and_javascript/Interacting-with-code.html#interacting-with-code-environment-variables */
Module.preRun.push(function() {ENV.BABEL_DATADIR = "/ob_datadir"})
// Sometimes an existing Module object exists with properties
// meant to overwrite the default module functionality. Here
// we collect those properties and reapply _after_ we configure
// the current environment's defaults to avoid having to be so
// defensive during initialization.
var moduleOverrides = {};
var key;
for (key in Module) {
if (Module.hasOwnProperty(key)) {
moduleOverrides[key] = Module[key];
}
}
Module['arguments'] = [];
Module['thisProgram'] = './this.program';
Module['quit'] = function(status, toThrow) {
throw toThrow;
};
Module['preRun'] = [];
Module['postRun'] = [];
// Determine the runtime environment we are in. You can customize this by
// setting the ENVIRONMENT setting at compile time (see settings.js).
var ENVIRONMENT_IS_WEB = false;
var ENVIRONMENT_IS_WORKER = false;
var ENVIRONMENT_IS_NODE = false;
var ENVIRONMENT_HAS_NODE = false;
var ENVIRONMENT_IS_SHELL = false;
ENVIRONMENT_IS_WEB = typeof window === 'object';
ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';
// A web environment like Electron.js can have Node enabled, so we must
// distinguish between Node-enabled environments and Node environments per se.
// This will allow the former to do things like mount NODEFS.
// Extended check using process.versions fixes issue #8816.
// (Also makes redundant the original check that 'require' is a function.)
ENVIRONMENT_HAS_NODE = typeof process === 'object' && typeof process.versions === 'object' && typeof process.versions.node === 'string';
ENVIRONMENT_IS_NODE = ENVIRONMENT_HAS_NODE && !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_WORKER;
ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
// Three configurations we can be running in:
// 1) We could be the application main() thread running in the main JS UI thread. (ENVIRONMENT_IS_WORKER == false and ENVIRONMENT_IS_PTHREAD == false)
// 2) We could be the application main() thread proxied to worker. (with Emscripten -s PROXY_TO_WORKER=1) (ENVIRONMENT_IS_WORKER == true, ENVIRONMENT_IS_PTHREAD == false)
// 3) We could be an application pthread running in a worker. (ENVIRONMENT_IS_WORKER == true and ENVIRONMENT_IS_PTHREAD == true)
// `/` should be present at the end if `scriptDirectory` is not empty
var scriptDirectory = '';
function locateFile(path) {
if (Module['locateFile']) {
return Module['locateFile'](path, scriptDirectory);
} else {
return scriptDirectory + path;
}
}
// Hooks that are implemented differently in different runtime environments.
var read_,
readAsync,
readBinary,
setWindowTitle;
if (ENVIRONMENT_IS_NODE) {
scriptDirectory = __dirname + '/';
// Expose functionality in the same simple way that the shells work
// Note that we pollute the global namespace here, otherwise we break in node
var nodeFS;
var nodePath;
read_ = function shell_read(filename, binary) {
var ret;
if (!nodeFS) nodeFS = require('fs');
if (!nodePath) nodePath = require('path');
filename = nodePath['normalize'](filename);
ret = nodeFS['readFileSync'](filename);
return binary ? ret : ret.toString();
};
readBinary = function readBinary(filename) {
var ret = read_(filename, true);
if (!ret.buffer) {
ret = new Uint8Array(ret);
}
assert(ret.buffer);
return ret;
};
if (process['argv'].length > 1) {
Module['thisProgram'] = process['argv'][1].replace(/\\/g, '/');
}
Module['arguments'] = process['argv'].slice(2);
if (typeof module !== 'undefined') {
module['exports'] = Module;
}
process['on']('uncaughtException', function(ex) {
// suppress ExitStatus exceptions from showing an error
if (!(ex instanceof ExitStatus)) {
throw ex;
}
});
// Currently node will swallow unhandled rejections, but this behavior is
// deprecated, and in the future it will exit with error status.
process['on']('unhandledRejection', abort);
Module['quit'] = function(status) {
process['exit'](status);
};
Module['inspect'] = function () { return '[Emscripten Module object]'; };
} else
if (ENVIRONMENT_IS_SHELL) {
if (typeof read != 'undefined') {
read_ = function shell_read(f) {
return read(f);
};
}
readBinary = function readBinary(f) {
var data;
if (typeof readbuffer === 'function') {
return new Uint8Array(readbuffer(f));
}
data = read(f, 'binary');
assert(typeof data === 'object');
return data;
};
if (typeof scriptArgs != 'undefined') {
Module['arguments'] = scriptArgs;
} else if (typeof arguments != 'undefined') {
Module['arguments'] = arguments;
}
if (typeof quit === 'function') {
Module['quit'] = function(status) {
quit(status);
}
}
} else
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
if (ENVIRONMENT_IS_WORKER) { // Check worker, not web, since window could be polyfilled
scriptDirectory = self.location.href;
} else if (document.currentScript) { // web
scriptDirectory = document.currentScript.src;
}
// blob urls look like blob:http://site.com/etc/etc and we cannot infer anything from them.
// otherwise, slice off the final part of the url to find the script directory.
// if scriptDirectory does not contain a slash, lastIndexOf will return -1,
// and scriptDirectory will correctly be replaced with an empty string.
if (scriptDirectory.indexOf('blob:') !== 0) {
scriptDirectory = scriptDirectory.substr(0, scriptDirectory.lastIndexOf('/')+1);
} else {
scriptDirectory = '';
}
read_ = function shell_read(url) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, false);
xhr.send(null);
return xhr.responseText;
};
if (ENVIRONMENT_IS_WORKER) {
readBinary = function readBinary(url) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, false);
xhr.responseType = 'arraybuffer';
xhr.send(null);
return new Uint8Array(xhr.response);
};
}
readAsync = function readAsync(url, onload, onerror) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, true);
xhr.responseType = 'arraybuffer';
xhr.onload = function xhr_onload() {
if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0
onload(xhr.response);
return;
}
onerror();
};
xhr.onerror = onerror;
xhr.send(null);
};
setWindowTitle = function(title) { document.title = title };
} else
{
}
// Set up the out() and err() hooks, which are how we can print to stdout or
// stderr, respectively.
// If the user provided Module.print or printErr, use that. Otherwise,
// console.log is checked first, as 'print' on the web will open a print dialogue
// printErr is preferable to console.warn (works better in shells)
// bind(console) is necessary to fix IE/Edge closed dev tools panel behavior.
var out = Module['print'] || (typeof console !== 'undefined' ? console.log.bind(console) : (typeof print !== 'undefined' ? print : null));
var err = Module['printErr'] || (typeof printErr !== 'undefined' ? printErr : ((typeof console !== 'undefined' && console.warn.bind(console)) || out));
// Merge back in the overrides
for (key in moduleOverrides) {
if (moduleOverrides.hasOwnProperty(key)) {
Module[key] = moduleOverrides[key];
}
}
// Free the object hierarchy contained in the overrides, this lets the GC
// reclaim data used e.g. in memoryInitializerRequest, which is a large typed array.
moduleOverrides = undefined;
// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message
// TODO remove when SDL2 is fixed; also add the above assertion
// Copyright 2017 The Emscripten Authors. All rights reserved.
// Emscripten is available under two separate licenses, the MIT license and the
// University of Illinois/NCSA Open Source License. Both these licenses can be
// found in the LICENSE file.
// {{PREAMBLE_ADDITIONS}}
var STACK_ALIGN = 16;
function dynamicAlloc(size) {
var ret = HEAP32[DYNAMICTOP_PTR>>2];
var end = (ret + size + 15) & -16;
if (end > _emscripten_get_heap_size()) {
abort();
}
HEAP32[DYNAMICTOP_PTR>>2] = end;
return ret;
}
function alignMemory(size, factor) {
if (!factor) factor = STACK_ALIGN; // stack alignment (16-byte) by default
return Math.ceil(size / factor) * factor;
}
function getNativeTypeSize(type) {
switch (type) {
case 'i1': case 'i8': return 1;
case 'i16': return 2;
case 'i32': return 4;
case 'i64': return 8;
case 'float': return 4;
case 'double': return 8;
default: {
if (type[type.length-1] === '*') {
return 4; // A pointer
} else if (type[0] === 'i') {
var bits = parseInt(type.substr(1));
assert(bits % 8 === 0, 'getNativeTypeSize invalid bits ' + bits + ', type ' + type);
return bits / 8;
} else {
return 0;
}
}
}
}
function warnOnce(text) {
if (!warnOnce.shown) warnOnce.shown = {};
if (!warnOnce.shown[text]) {
warnOnce.shown[text] = 1;
err(text);
}
}
var asm2wasmImports = { // special asm2wasm imports
"f64-rem": function(x, y) {
return x % y;
},
"debugger": function() {
debugger;
}
};
var jsCallStartIndex = 1;
var functionPointers = new Array(0);
// Wraps a JS function as a wasm function with a given signature.
// In the future, we may get a WebAssembly.Function constructor. Until then,
// we create a wasm module that takes the JS function as an import with a given
// signature, and re-exports that as a wasm function.
function convertJsFunctionToWasm(func, sig) {
// The module is static, with the exception of the type section, which is
// generated based on the signature passed in.
var typeSection = [
0x01, // id: section,
0x00, // length: 0 (placeholder)
0x01, // count: 1
0x60, // form: func
];
var sigRet = sig.slice(0, 1);
var sigParam = sig.slice(1);
var typeCodes = {
'i': 0x7f, // i32
'j': 0x7e, // i64
'f': 0x7d, // f32
'd': 0x7c, // f64
};
// Parameters, length + signatures
typeSection.push(sigParam.length);
for (var i = 0; i < sigParam.length; ++i) {
typeSection.push(typeCodes[sigParam[i]]);
}
// Return values, length + signatures
// With no multi-return in MVP, either 0 (void) or 1 (anything else)
if (sigRet == 'v') {
typeSection.push(0x00);
} else {
typeSection = typeSection.concat([0x01, typeCodes[sigRet]]);
}
// Write the overall length of the type section back into the section header
// (excepting the 2 bytes for the section id and length)
typeSection[1] = typeSection.length - 2;
// Rest of the module is static
var bytes = new Uint8Array([
0x00, 0x61, 0x73, 0x6d, // magic ("\0asm")
0x01, 0x00, 0x00, 0x00, // version: 1
].concat(typeSection, [
0x02, 0x07, // import section
// (import "e" "f" (func 0 (type 0)))
0x01, 0x01, 0x65, 0x01, 0x66, 0x00, 0x00,
0x07, 0x05, // export section
// (export "f" (func 0 (type 0)))
0x01, 0x01, 0x66, 0x00, 0x00,
]));
// We can compile this wasm module synchronously because it is very small.
// This accepts an import (at "e.f"), that it reroutes to an export (at "f")
var module = new WebAssembly.Module(bytes);
var instance = new WebAssembly.Instance(module, {
e: {
f: func
}
});
var wrappedFunc = instance.exports.f;
return wrappedFunc;
}
// Add a wasm function to the table.
function addFunctionWasm(func, sig) {
var table = wasmTable;
var ret = table.length;
// Grow the table
try {
table.grow(1);
} catch (err) {
if (!err instanceof RangeError) {
throw err;
}
throw 'Unable to grow wasm table. Use a higher value for RESERVED_FUNCTION_POINTERS or set ALLOW_TABLE_GROWTH.';
}
// Insert new element
try {
// Attempting to call this with JS function will cause of table.set() to fail
table.set(ret, func);
} catch (err) {
if (!err instanceof TypeError) {
throw err;
}
assert(typeof sig !== 'undefined', 'Missing signature argument to addFunction');
var wrapped = convertJsFunctionToWasm(func, sig);
table.set(ret, wrapped);
}
return ret;
}
function removeFunctionWasm(index) {
// TODO(sbc): Look into implementing this to allow re-using of table slots
}
// 'sig' parameter is required for the llvm backend but only when func is not
// already a WebAssembly function.
function addFunction(func, sig) {
var base = 0;
for (var i = base; i < base + 0; i++) {
if (!functionPointers[i]) {
functionPointers[i] = func;
return jsCallStartIndex + i;
}
}
throw 'Finished up all reserved function pointers. Use a higher value for RESERVED_FUNCTION_POINTERS.';
}
function removeFunction(index) {
functionPointers[index-jsCallStartIndex] = null;
}
var funcWrappers = {};
function getFuncWrapper(func, sig) {
if (!func) return; // on null pointer, return undefined
assert(sig);
if (!funcWrappers[sig]) {
funcWrappers[sig] = {};
}
var sigCache = funcWrappers[sig];
if (!sigCache[func]) {
// optimize away arguments usage in common cases
if (sig.length === 1) {
sigCache[func] = function dynCall_wrapper() {
return dynCall(sig, func);
};
} else if (sig.length === 2) {
sigCache[func] = function dynCall_wrapper(arg) {
return dynCall(sig, func, [arg]);
};
} else {
// general case
sigCache[func] = function dynCall_wrapper() {
return dynCall(sig, func, Array.prototype.slice.call(arguments));
};
}
}
return sigCache[func];
}
function makeBigInt(low, high, unsigned) {
return unsigned ? ((+((low>>>0)))+((+((high>>>0)))*4294967296.0)) : ((+((low>>>0)))+((+((high|0)))*4294967296.0));
}
function dynCall(sig, ptr, args) {
if (args && args.length) {
return Module['dynCall_' + sig].apply(null, [ptr].concat(args));
} else {
return Module['dynCall_' + sig].call(null, ptr);
}
}
var tempRet0 = 0;
var setTempRet0 = function(value) {
tempRet0 = value;
};
var getTempRet0 = function() {
return tempRet0;
};
var Runtime = {
};
// The address globals begin at. Very low in memory, for code size and optimization opportunities.
// Above 0 is static memory, starting with globals.
// Then the stack.
// Then 'dynamic' memory for sbrk.
var GLOBAL_BASE = 1024;
// === Preamble library stuff ===
// Documentation for the public APIs defined in this file must be updated in:
// site/source/docs/api_reference/preamble.js.rst
// A prebuilt local version of the documentation is available at:
// site/build/text/docs/api_reference/preamble.js.txt
// You can also build docs locally as HTML or other formats in site/
// An online HTML version (which may be of a different version of Emscripten)
// is up at http://kripken.github.io/emscripten-site/docs/api_reference/preamble.js.html
if (typeof WebAssembly !== 'object') {
err('no native wasm support detected');
}
// In MINIMAL_RUNTIME, setValue() and getValue() are only available when building with safe heap enabled, for heap safety checking.
// In traditional runtime, setValue() and getValue() are always available (although their use is highly discouraged due to perf penalties)
/** @type {function(number, number, string, boolean=)} */
function setValue(ptr, value, type, noSafe) {
type = type || 'i8';
if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
switch(type) {
case 'i1': HEAP8[((ptr)>>0)]=value; break;
case 'i8': HEAP8[((ptr)>>0)]=value; break;
case 'i16': HEAP16[((ptr)>>1)]=value; break;
case 'i32': HEAP32[((ptr)>>2)]=value; break;
case 'i64': (tempI64 = [value>>>0,(tempDouble=value,(+(Math_abs(tempDouble))) >= 1.0 ? (tempDouble > 0.0 ? ((Math_min((+(Math_floor((tempDouble)/4294967296.0))), 4294967295.0))|0)>>>0 : (~~((+(Math_ceil((tempDouble - +(((~~(tempDouble)))>>>0))/4294967296.0)))))>>>0) : 0)],HEAP32[((ptr)>>2)]=tempI64[0],HEAP32[(((ptr)+(4))>>2)]=tempI64[1]); break;
case 'float': HEAPF32[((ptr)>>2)]=value; break;
case 'double': HEAPF64[((ptr)>>3)]=value; break;
default: abort('invalid type for setValue: ' + type);
}
}
/** @type {function(number, string, boolean=)} */
function getValue(ptr, type, noSafe) {
type = type || 'i8';
if (type.charAt(type.length-1) === '*') type = 'i32'; // pointers are 32-bit
switch(type) {
case 'i1': return HEAP8[((ptr)>>0)];
case 'i8': return HEAP8[((ptr)>>0)];
case 'i16': return HEAP16[((ptr)>>1)];
case 'i32': return HEAP32[((ptr)>>2)];
case 'i64': return HEAP32[((ptr)>>2)];
case 'float': return HEAPF32[((ptr)>>2)];
case 'double': return HEAPF64[((ptr)>>3)];
default: abort('invalid type for getValue: ' + type);
}
return null;
}
// Wasm globals
var wasmMemory;
// Potentially used for direct table calls.
var wasmTable;
//========================================
// Runtime essentials
//========================================
// whether we are quitting the application. no code should run after this.
// set in exit() and abort()
var ABORT = false;
// set by exit() and abort(). Passed to 'onExit' handler.
// NOTE: This is also used as the process return code code in shell environments
// but only when noExitRuntime is false.
var EXITSTATUS = 0;
/** @type {function(*, string=)} */
function assert(condition, text) {
if (!condition) {
abort('Assertion failed: ' + text);
}
}
// Returns the C function with a specified identifier (for C++, you need to do manual name mangling)
function getCFunc(ident) {
var func = Module['_' + ident]; // closure exported function
assert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported');
return func;
}
// C calling interface.
function ccall(ident, returnType, argTypes, args, opts) {
// For fast lookup of conversion functions
var toC = {
'string': function(str) {
var ret = 0;
if (str !== null && str !== undefined && str !== 0) { // null string
// at most 4 bytes per UTF-8 code point, +1 for the trailing '\0'
var len = (str.length << 2) + 1;
ret = stackAlloc(len);
stringToUTF8(str, ret, len);
}
return ret;
},
'array': function(arr) {
var ret = stackAlloc(arr.length);
writeArrayToMemory(arr, ret);
return ret;
}
};
function convertReturnValue(ret) {
if (returnType === 'string') return UTF8ToString(ret);
if (returnType === 'boolean') return Boolean(ret);
return ret;
}
var func = getCFunc(ident);
var cArgs = [];
var stack = 0;
if (args) {
for (var i = 0; i < args.length; i++) {
var converter = toC[argTypes[i]];
if (converter) {
if (stack === 0) stack = stackSave();
cArgs[i] = converter(args[i]);
} else {
cArgs[i] = args[i];
}
}
}
var ret = func.apply(null, cArgs);
ret = convertReturnValue(ret);
if (stack !== 0) stackRestore(stack);
return ret;
}
function cwrap(ident, returnType, argTypes, opts) {
argTypes = argTypes || [];
// When the function takes numbers and returns a number, we can just return
// the original function
var numericArgs = argTypes.every(function(type){ return type === 'number'});
var numericRet = returnType !== 'string';
if (numericRet && numericArgs && !opts) {
return getCFunc(ident);
}
return function() {
return ccall(ident, returnType, argTypes, arguments, opts);
}
}
var ALLOC_NORMAL = 0; // Tries to use _malloc()
var ALLOC_STACK = 1; // Lives for the duration of the current function call
var ALLOC_DYNAMIC = 2; // Cannot be freed except through sbrk
var ALLOC_NONE = 3; // Do not allocate
// allocate(): This is for internal use. You can use it yourself as well, but the interface
// is a little tricky (see docs right below). The reason is that it is optimized
// for multiple syntaxes to save space in generated code. So you should
// normally not use allocate(), and instead allocate memory using _malloc(),
// initialize it with setValue(), and so forth.
// @slab: An array of data, or a number. If a number, then the size of the block to allocate,
// in *bytes* (note that this is sometimes confusing: the next parameter does not
// affect this!)
// @types: Either an array of types, one for each byte (or 0 if no type at that position),
// or a single type which is used for the entire block. This only matters if there
// is initial data - if @slab is a number, then this does not matter at all and is
// ignored.
// @allocator: How to allocate memory, see ALLOC_*
/** @type {function((TypedArray|Array<number>|number), string, number, number=)} */
function allocate(slab, types, allocator, ptr) {
var zeroinit, size;
if (typeof slab === 'number') {
zeroinit = true;
size = slab;
} else {
zeroinit = false;
size = slab.length;
}
var singleType = typeof types === 'string' ? types : null;
var ret;
if (allocator == ALLOC_NONE) {
ret = ptr;
} else {
ret = [_malloc,
stackAlloc,
dynamicAlloc][allocator](Math.max(size, singleType ? 1 : types.length));
}
if (zeroinit) {
var stop;
ptr = ret;
assert((ret & 3) == 0);
stop = ret + (size & ~3);
for (; ptr < stop; ptr += 4) {
HEAP32[((ptr)>>2)]=0;
}
stop = ret + size;
while (ptr < stop) {
HEAP8[((ptr++)>>0)]=0;
}
return ret;
}
if (singleType === 'i8') {
if (slab.subarray || slab.slice) {
HEAPU8.set(/** @type {!Uint8Array} */ (slab), ret);
} else {
HEAPU8.set(new Uint8Array(slab), ret);
}
return ret;
}
var i = 0, type, typeSize, previousType;
while (i < size) {
var curr = slab[i];
type = singleType || types[i];
if (type === 0) {
i++;
continue;
}
if (type == 'i64') type = 'i32'; // special case: we have one i32 here, and one i32 later
setValue(ret+i, curr, type);
// no need to look up size unless type changes, so cache it
if (previousType !== type) {
typeSize = getNativeTypeSize(type);
previousType = type;
}
i += typeSize;
}
return ret;
}
// Allocate memory during any stage of startup - static memory early on, dynamic memory later, malloc when ready
function getMemory(size) {
if (!runtimeInitialized) return dynamicAlloc(size);
return _malloc(size);
}
/** @type {function(number, number=)} */
function Pointer_stringify(ptr, length) {
abort("this function has been removed - you should use UTF8ToString(ptr, maxBytesToRead) instead!");
}
// Given a pointer 'ptr' to a null-terminated ASCII-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.
function AsciiToString(ptr) {
var str = '';
while (1) {
var ch = HEAPU8[((ptr++)>>0)];
if (!ch) return str;
str += String.fromCharCode(ch);
}
}
// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in ASCII form. The copy will require at most str.length+1 bytes of space in the HEAP.
function stringToAscii(str, outPtr) {
return writeAsciiToMemory(str, outPtr, false);
}
// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the given array that contains uint8 values, returns
// a copy of that string as a Javascript String object.
var UTF8Decoder = typeof TextDecoder !== 'undefined' ? new TextDecoder('utf8') : undefined;
/**
* @param {number} idx
* @param {number=} maxBytesToRead
* @return {string}
*/
function UTF8ArrayToString(u8Array, idx, maxBytesToRead) {
var endIdx = idx + maxBytesToRead;
var endPtr = idx;
// TextDecoder needs to know the byte length in advance, it doesn't stop on null terminator by itself.
// Also, use the length info to avoid running tiny strings through TextDecoder, since .subarray() allocates garbage.
// (As a tiny code save trick, compare endPtr against endIdx using a negation, so that undefined means Infinity)
while (u8Array[endPtr] && !(endPtr >= endIdx)) ++endPtr;
if (endPtr - idx > 16 && u8Array.subarray && UTF8Decoder) {
return UTF8Decoder.decode(u8Array.subarray(idx, endPtr));
} else {
var str = '';
// If building with TextDecoder, we have already computed the string length above, so test loop end condition against that
while (idx < endPtr) {
// For UTF8 byte structure, see:
// http://en.wikipedia.org/wiki/UTF-8#Description
// https://www.ietf.org/rfc/rfc2279.txt
// https://tools.ietf.org/html/rfc3629
var u0 = u8Array[idx++];
if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; }
var u1 = u8Array[idx++] & 63;
if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; }
var u2 = u8Array[idx++] & 63;