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shell.js
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shell.js
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// The Module object: Our interface to the outside world. We import
// and export values on it, and do the work to get that through
// closure compiler if necessary. 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 do an eval in order to handle the closure compiler
// case, where this code here is minified but Module was defined
// elsewhere (e.g. case 4 above). We also need to check if Module
// already exists (e.g. case 3 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;
#if USE_CLOSURE_COMPILER
if (!Module) Module = eval('(function() { try { return {{{ EXPORT_NAME }}} || {} } catch(e) { return {} } })()');
#else
if (!Module) Module = (typeof {{{ EXPORT_NAME }}} !== 'undefined' ? {{{ EXPORT_NAME }}} : null) || {};
#endif
// 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 = {};
for (var key in Module) {
if (Module.hasOwnProperty(key)) {
moduleOverrides[key] = Module[key];
}
}
// The environment setup code below is customized to use Module.
// *** Environment setup code ***
var ENVIRONMENT_IS_WEB = false;
var ENVIRONMENT_IS_WORKER = false;
var ENVIRONMENT_IS_NODE = false;
var ENVIRONMENT_IS_SHELL = false;
// 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)
if (Module['ENVIRONMENT']) {
if (Module['ENVIRONMENT'] === 'WEB') {
ENVIRONMENT_IS_WEB = true;
} else if (Module['ENVIRONMENT'] === 'WORKER') {
ENVIRONMENT_IS_WORKER = true;
} else if (Module['ENVIRONMENT'] === 'NODE') {
ENVIRONMENT_IS_NODE = true;
} else if (Module['ENVIRONMENT'] === 'SHELL') {
ENVIRONMENT_IS_SHELL = true;
} else {
throw new Error('The provided Module[\'ENVIRONMENT\'] value is not valid. It must be one of: WEB|WORKER|NODE|SHELL.');
}
} else {
ENVIRONMENT_IS_WEB = typeof window === 'object';
ENVIRONMENT_IS_WORKER = typeof importScripts === 'function';
ENVIRONMENT_IS_NODE = typeof process === 'object' && typeof require === 'function' && !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_WORKER;
ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;
}
#if USE_PTHREADS
var ENVIRONMENT_IS_PTHREAD;
if (!ENVIRONMENT_IS_PTHREAD) ENVIRONMENT_IS_PTHREAD = false; // ENVIRONMENT_IS_PTHREAD=true will have been preset in pthread-main.js. Make it false in the main runtime thread.
var PthreadWorkerInit; // Collects together variables that are needed at initialization time for the web workers that host pthreads.
if (!ENVIRONMENT_IS_PTHREAD) PthreadWorkerInit = {};
var currentScriptUrl = ENVIRONMENT_IS_WORKER ? undefined : document.currentScript.src;
#endif
if (ENVIRONMENT_IS_NODE) {
// Expose functionality in the same simple way that the shells work
// Note that we pollute the global namespace here, otherwise we break in node
if (!Module['print']) Module['print'] = console.log;
if (!Module['printErr']) Module['printErr'] = console.warn;
var nodeFS;
var nodePath;
Module['read'] = function shell_read(filename, binary) {
if (!nodeFS) nodeFS = require('fs');
if (!nodePath) nodePath = require('path');
filename = nodePath['normalize'](filename);
var ret = nodeFS['readFileSync'](filename);
return binary ? ret : ret.toString();
};
Module['readBinary'] = function readBinary(filename) {
var ret = Module['read'](filename, true);
if (!ret.buffer) {
ret = new Uint8Array(ret);
}
assert(ret.buffer);
return ret;
};
Module['load'] = function load(f) {
globalEval(read(f));
};
if (!Module['thisProgram']) {
if (process['argv'].length > 1) {
Module['thisProgram'] = process['argv'][1].replace(/\\/g, '/');
} else {
Module['thisProgram'] = 'unknown-program';
}
}
Module['arguments'] = process['argv'].slice(2);
if (typeof module !== 'undefined') {
module['exports'] = Module;
}
#if NODEJS_CATCH_EXIT
process['on']('uncaughtException', function(ex) {
// suppress ExitStatus exceptions from showing an error
if (!(ex instanceof ExitStatus)) {
throw ex;
}
});
#endif
Module['inspect'] = function () { return '[Emscripten Module object]'; };
}
else if (ENVIRONMENT_IS_SHELL) {
if (!Module['print']) Module['print'] = print;
if (typeof printErr != 'undefined') Module['printErr'] = printErr; // not present in v8 or older sm
if (typeof read != 'undefined') {
Module['read'] = read;
} else {
Module['read'] = function shell_read() { throw 'no read() available' };
}
Module['readBinary'] = function readBinary(f) {
if (typeof readbuffer === 'function') {
return new Uint8Array(readbuffer(f));
}
var 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, toThrow) {
quit(status);
}
}
#if USE_CLOSURE_COMPILER
eval("if (typeof gc === 'function' && gc.toString().indexOf('[native code]') > 0) var gc = undefined"); // wipe out the SpiderMonkey shell 'gc' function, which can confuse closure (uses it as a minified name, and it is then initted to a non-falsey value unexpectedly)
#endif
}
else if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {
Module['read'] = function shell_read(url) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, false);
xhr.send(null);
return xhr.responseText;
};
if (ENVIRONMENT_IS_WORKER) {
Module['readBinary'] = function readBinary(url) {
var xhr = new XMLHttpRequest();
xhr.open('GET', url, false);
xhr.responseType = 'arraybuffer';
xhr.send(null);
return new Uint8Array(xhr.response);
};
}
Module['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);
} else {
onerror();
}
};
xhr.onerror = onerror;
xhr.send(null);
};
if (typeof arguments != 'undefined') {
Module['arguments'] = arguments;
}
if (typeof console !== 'undefined') {
if (!Module['print']) Module['print'] = function shell_print(x) {
console.log(x);
};
if (!Module['printErr']) Module['printErr'] = function shell_printErr(x) {
console.warn(x);
};
} else {
// Probably a worker, and without console.log. We can do very little here...
var TRY_USE_DUMP = false;
if (!Module['print']) Module['print'] = (TRY_USE_DUMP && (typeof(dump) !== "undefined") ? (function(x) {
dump(x);
}) : (function(x) {
// self.postMessage(x); // enable this if you want stdout to be sent as messages
}));
}
if (ENVIRONMENT_IS_WORKER) {
Module['load'] = importScripts;
}
if (typeof Module['setWindowTitle'] === 'undefined') {
Module['setWindowTitle'] = function(title) { document.title = title };
}
}
else {
// Unreachable because SHELL is dependant on the others
throw 'Unknown runtime environment. Where are we?';
}
function globalEval(x) {
{{{ makeEval('eval.call(null, x);') }}}
}
if (!Module['load'] && Module['read']) {
Module['load'] = function load(f) {
globalEval(Module['read'](f));
};
}
if (!Module['print']) {
Module['print'] = function(){};
}
if (!Module['printErr']) {
Module['printErr'] = Module['print'];
}
if (!Module['arguments']) {
Module['arguments'] = [];
}
if (!Module['thisProgram']) {
Module['thisProgram'] = './this.program';
}
if (!Module['quit']) {
Module['quit'] = function(status, toThrow) {
throw toThrow;
}
}
// *** Environment setup code ***
// Closure helpers
Module.print = Module['print'];
Module.printErr = Module['printErr'];
// Callbacks
Module['preRun'] = [];
Module['postRun'] = [];
// Merge back in the overrides
for (var 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;
{{BODY}}
// {{MODULE_ADDITIONS}}