语言转WebAssembly篇（一）"/>
C/C++语言转WebAssembly篇（一）
- 官网：/
- EMScripten： (注：这里允许C++语言，但必须以C编译，小心掉坑)
C代码
#include <stdio.h>
#include <string.h>const char *str = "hello ";
char *show(char *name){int m = strlen(str);int n = strlen(name);char result[m+n];for (int i = 0; i < m; i++) {result[i] = str[i];}for (int j = 0; j < n; j++) {result[m+j] = name[j];}printf("result printf===>%s\n", result);char * tmp = result;return tmp;
}
emsdk安装环境变量需确认是否正常
C to wasm
emcc helloworld.c -s "EXPORTED_FUNCTIONS=['_show']" -s "EXPORTED_RUNTIME_METHODS=['cwrap','ccall']" -o hello.html
运行一：在浏览器中运行
Moduleall("show","string",["string"],["zhangsan"]);
注：JS中加载WASM默认开启同源验证，所以需要同服务访问加载。
运行二：在微信小程序/小游戏中运行
编译出来的JS与微信生态语法存在一定不兼容，需要做一定改造适配。将hello.js代码改造如下：
// 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 : {};var isWechat = typeof wx == 'object';
WebAssembly = isWechat ? WXWebAssembly : WebAssembly;// See // --pre-jses are emitted after the Module integration code, so that they can
// refer to Module (if they choose; they can also define Module)
// {{PRE_JSES}}// 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 = Object.assign({}, Module);var arguments_ = [];
var thisProgram = './this.program';
var quit_ = (status, toThrow) => {throw toThrow;
};// Determine the runtime environment we are in. You can customize this by
// setting the ENVIRONMENT setting at compile time (see settings.js).// Attempt to auto-detect the environment
var ENVIRONMENT_IS_WEB = typeof window == 'object' || isWechat;
var ENVIRONMENT_IS_WORKER = typeof importScripts == 'function';
// N.b. Electron.js environment is simultaneously a NODE-environment, but
// also a web environment.
var ENVIRONMENT_IS_NODE = typeof process == 'object' && typeof process.versions == 'object' && typeof process.versions.node == 'string';
var ENVIRONMENT_IS_SHELL = !ENVIRONMENT_IS_WEB && !ENVIRONMENT_IS_NODE && !ENVIRONMENT_IS_WORKER;if (Module['ENVIRONMENT']) {throw new Error('Module.ENVIRONMENT has been deprecated. To force the environment, use the ENVIRONMENT compile-time option (for example, -s ENVIRONMENT=web or -s ENVIRONMENT=node)');
}// `/` should be present at the end if `scriptDirectory` is not empty
var scriptDirectory = '';// Hooks that are implemented differently in different runtime environments.
var read_,readAsync,readBinary,setWindowTitle;// Normally we don't log exceptions but instead let them bubble out the top
// level where the embedding environment (e.g. the browser) can handle
// them.
// However under v8 and node we sometimes exit the process direcly in which case
// its up to use us to log the exception before exiting.
// If we fix
// this may no longer be needed under node.
function logExceptionOnExit(e) {if (e instanceof ExitStatus) return;let toLog = e;if (e && typeof e == 'object' && e.stack) {toLog = [e, e.stack];}err('exiting due to exception: ' + toLog);
}var fs;
var nodePath;
var requireNodeFS;
if (ENVIRONMENT_IS_NODE) {if (!(typeof process == 'object' && typeof require == 'function')) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');if (ENVIRONMENT_IS_WORKER) {scriptDirectory = require('path').dirname(scriptDirectory) + '/';} else {scriptDirectory = __dirname + '/';}// include: node_shell_read.jsrequireNodeFS = () => {// Use nodePath as the indicator for these not being initialized,// since in some environments a global fs may have already been// created.if (!nodePath) {fs = require('fs');nodePath = require('path');}
};read_ = function shell_read(filename, binary) {requireNodeFS();filename = nodePath['normalize'](filename);return fs.readFileSync(filename, binary ? undefined : 'utf8');
};readBinary = (filename) => {var ret = read_(filename, true);if (!ret.buffer) {ret = new Uint8Array(ret);}assert(ret.buffer);return ret;
};readAsync = (filename, onload, onerror) => {requireNodeFS();filename = nodePath['normalize'](filename);fs.readFile(filename, function(err, data) {if (err) onerror(err);else onload(data.buffer);});
};// end include: node_shell_read.jsif (process['argv'].length > 1) {thisProgram = process['argv'][1].replace(/\\/g, '/');}arguments_ = process['argv'].slice(2);if (typeof module != 'undefined') {module['exports'] = Module;}process['on']('uncaughtException', function(ex) {// suppress ExitStatus exceptions from showing an errorif (!(ex instanceof ExitStatus)) {throw ex;}});// Without this older versions of node (< v15) will log unhandled rejections// but return 0, which is not normally the desired behaviour. This is// not be needed with node v15 and about because it is now the default// behaviour:// See .html#cli_unhandled_rejections_modeprocess['on']('unhandledRejection', function(reason) { throw reason; });quit_ = (status, toThrow) => {if (keepRuntimeAlive()) {process['exitCode'] = status;throw toThrow;}logExceptionOnExit(toThrow);process['exit'](status);};Module['inspect'] = function () { return '[Emscripten Module object]'; };} else
if (ENVIRONMENT_IS_SHELL) {if ((typeof process == 'object' && typeof require === 'function') || typeof window == 'object' || typeof importScripts == 'function') throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');if (typeof read != 'undefined') {read_ = function shell_read(f) {return read(f);};}readBinary = function readBinary(f) {let data;if (typeof readbuffer == 'function') {return new Uint8Array(readbuffer(f));}data = read(f, 'binary');assert(typeof data == 'object');return data;};readAsync = function readAsync(f, onload, onerror) {setTimeout(() => onload(readBinary(f)), 0);};if (typeof scriptArgs != 'undefined') {arguments_ = scriptArgs;} else if (typeof arguments != 'undefined') {arguments_ = arguments;}if (typeof quit == 'function') {quit_ = (status, toThrow) => {logExceptionOnExit(toThrow);quit(status);};}if (typeof print != 'undefined') {// Prefer to use print/printErr where they exist, as they usually work better.if (typeof console == 'undefined') console = /** @type{!Console} */({});console.log = /** @type{!function(this:Console, ...*): undefined} */ (print);console.warn = console.error = /** @type{!function(this:Console, ...*): undefined} */ (typeof printErr != 'undefined' ? printErr : print);}} else// Note that this includes Node.js workers when relevant (pthreads is enabled).
// Node.js workers are detected as a combination of ENVIRONMENT_IS_WORKER and
// ENVIRONMENT_IS_NODE.
if (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER) {if (ENVIRONMENT_IS_WORKER) { // Check worker, not web, since window could be polyfilledscriptDirectory = self.location.href;} else if (typeof document != 'undefined' && document.currentScript) { // webscriptDirectory = document.currentScript.src;}// blob urls look like blob: 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 contains a query (starting with ?) or a fragment (starting with #),// they are removed because they could contain a slash.if (scriptDirectory.indexOf('blob:') !== 0) {scriptDirectory = scriptDirectory.substr(0, scriptDirectory.replace(/[?#].*/, "").lastIndexOf('/')+1);} else {scriptDirectory = '';}if (!(typeof window == 'object' || typeof importScripts == 'function' || isWechat)) throw new Error('not compiled for this environment (did you build to HTML and try to run it not on the web, or set ENVIRONMENT to something - like node - and run it someplace else - like on the web?)');// Differentiate the Web Worker from the Node Worker case, as reading must// be done differently.{
// include: web_or_worker_shell_read.jsread_ = (url) => {var xhr = new XMLHttpRequest();xhr.open('GET', url, false);xhr.send(null);return xhr.responseText;}if (ENVIRONMENT_IS_WORKER) {readBinary = (url) => {var xhr = new XMLHttpRequest();xhr.open('GET', url, false);xhr.responseType = 'arraybuffer';xhr.send(null);return new Uint8Array(/** @type{!ArrayBuffer} */(xhr.response));};}readAsync = (url, onload, onerror) => {var xhr = new XMLHttpRequest();xhr.open('GET', url, true);xhr.responseType = 'arraybuffer';xhr.onload = () => {if (xhr.status == 200 || (xhr.status == 0 && xhr.response)) { // file URLs can return 0onload(xhr.response);return;}onerror();};xhr.onerror = onerror;xhr.send(null);}// end include: web_or_worker_shell_read.js}setWindowTitle = (title) => document.title = title;
} else
{throw new Error('environment detection error');
}var out = Module['print'] || console.log.bind(console);
var err = Module['printErr'] || console.warn.bind(console);// Merge back in the overrides
Object.assign(Module, moduleOverrides);
// 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 = null;
checkIncomingModuleAPI();// Emit code to handle expected values on the Module object. This applies Module.x
// to the proper local x. This has two benefits: first, we only emit it if it is
// expected to arrive, and second, by using a local everywhere else that can be
// minified.if (Module['arguments']) arguments_ = Module['arguments'];legacyModuleProp('arguments', 'arguments_');if (Module['thisProgram']) thisProgram = Module['thisProgram'];legacyModuleProp('thisProgram', 'thisProgram');if (Module['quit']) quit_ = Module['quit'];legacyModuleProp('quit', 'quit_');// perform assertions in shell.js after we set up out() and err(), as otherwise if an assertion fails it cannot print the message
// Assertions on removed incoming Module JS APIs.
assert(typeof Module['memoryInitializerPrefixURL'] == 'undefined', 'Module.memoryInitializerPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['pthreadMainPrefixURL'] == 'undefined', 'Module.pthreadMainPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['cdInitializerPrefixURL'] == 'undefined', 'Module.cdInitializerPrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['filePackagePrefixURL'] == 'undefined', 'Module.filePackagePrefixURL option was removed, use Module.locateFile instead');
assert(typeof Module['read'] == 'undefined', 'Module.read option was removed (modify read_ in JS)');
assert(typeof Module['readAsync'] == 'undefined', 'Module.readAsync option was removed (modify readAsync in JS)');
assert(typeof Module['readBinary'] == 'undefined', 'Module.readBinary option was removed (modify readBinary in JS)');
assert(typeof Module['setWindowTitle'] == 'undefined', 'Module.setWindowTitle option was removed (modify setWindowTitle in JS)');
assert(typeof Module['TOTAL_MEMORY'] == 'undefined', 'Module.TOTAL_MEMORY has been renamed Module.INITIAL_MEMORY');
legacyModuleProp('read', 'read_');
legacyModuleProp('readAsync', 'readAsync');
legacyModuleProp('readBinary', 'readBinary');
legacyModuleProp('setWindowTitle', 'setWindowTitle');
var IDBFS = 'IDBFS is no longer included by default; build with -lidbfs.js';
var PROXYFS = 'PROXYFS is no longer included by default; build with -lproxyfs.js';
var WORKERFS = 'WORKERFS is no longer included by default; build with -lworkerfs.js';
var NODEFS = 'NODEFS is no longer included by default; build with -lnodefs.js';
function alignMemory() { abort('`alignMemory` is now a library function and not included by default; add it to your library.js __deps or to DEFAULT_LIBRARY_FUNCS_TO_INCLUDE on the command line'); }assert(!ENVIRONMENT_IS_SHELL, "shell environment detected but not enabled at build time. Add 'shell' to `-s ENVIRONMENT` to enable.");var STACK_ALIGN = 16;
var POINTER_SIZE = 4;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 POINTER_SIZE;} else if (type[0] === 'i') {const bits = Number(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);}
}// include: runtime_functions.js// Wraps a JS function as a wasm function with a given signature.
function convertJsFunctionToWasm(func, sig) {// If the type reflection proposal is available, use the new// "WebAssembly.Function" constructor.// Otherwise, construct a minimal wasm module importing the JS function and// re-exporting it.if (typeof WebAssembly.Function == "function") {var typeNames = {'i': 'i32','j': 'i64','f': 'f32','d': 'f64'};var type = {parameters: [],results: sig[0] == 'v' ? [] : [typeNames[sig[0]]]};for (var i = 1; i < sig.length; ++i) {type.parameters.push(typeNames[sig[i]]);}return new WebAssembly.Function(type, func);}// 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: 10x60, // 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 + signaturestypeSection.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 staticvar 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;
}var freeTableIndexes = [];// Weak map of functions in the table to their indexes, created on first use.
var functionsInTableMap;function getEmptyTableSlot() {// Reuse a free index if there is one, otherwise grow.if (freeTableIndexes.length) {return freeTableIndexes.pop();}// Grow the tabletry {wasmTable.grow(1);} catch (err) {if (!(err instanceof RangeError)) {throw err;}throw 'Unable to grow wasm table. Set ALLOW_TABLE_GROWTH.';}return wasmTable.length - 1;
}function updateTableMap(offset, count) {for (var i = offset; i < offset + count; i++) {var item = getWasmTableEntry(i);// Ignore null values.if (item) {functionsInTableMap.set(item, i);}}
}/*** Add a function to the table.* 'sig' parameter is required if the function being added is a JS function.* @param {string=} sig*/
function addFunction(func, sig) {assert(typeof func != 'undefined');// Check if the function is already in the table, to ensure each function// gets a unique index. First, create the map if this is the first use.if (!functionsInTableMap) {functionsInTableMap = new WeakMap();updateTableMap(0, wasmTable.length);}if (functionsInTableMap.has(func)) {return functionsInTableMap.get(func);}// It's not in the table, add it now.var ret = getEmptyTableSlot();// Set the new value.try {// Attempting to call this with JS function will cause of table.set() to failsetWasmTableEntry(ret, func);} catch (err) {if (!(err instanceof TypeError)) {throw err;}assert(typeof sig != 'undefined', 'Missing signature argument to addFunction: ' + func);var wrapped = convertJsFunctionToWasm(func, sig);setWasmTableEntry(ret, wrapped);}functionsInTableMap.set(func, ret);return ret;
}function removeFunction(index) {functionsInTableMap.delete(getWasmTableEntry(index));freeTableIndexes.push(index);
}// end include: runtime_functions.js
// include: runtime_debug.jsfunction legacyModuleProp(prop, newName) {if (!Object.getOwnPropertyDescriptor(Module, prop)) {Object.defineProperty(Module, prop, {configurable: true,get: function() {abort('Module.' + prop + ' has been replaced with plain ' + newName + ' (the initial value can be provided on Module, but after startup the value is only looked for on a local variable of that name)');}});}
}function ignoredModuleProp(prop) {if (Object.getOwnPropertyDescriptor(Module, prop)) {abort('`Module.' + prop + '` was supplied but `' + prop + '` not included in INCOMING_MODULE_JS_API');}
}function unexportedMessage(sym, isFSSybol) {var msg = "'" + sym + "' was not exported. add it to EXPORTED_RUNTIME_METHODS (see the FAQ)";if (isFSSybol) {msg += '. Alternatively, forcing filesystem support (-s FORCE_FILESYSTEM=1) can export this for you';}return msg;
}function unexportedRuntimeSymbol(sym, isFSSybol) {if (!Object.getOwnPropertyDescriptor(Module, sym)) {Object.defineProperty(Module, sym, {configurable: true,get: function() {abort(unexportedMessage(sym, isFSSybol));}});}
}function unexportedRuntimeFunction(sym, isFSSybol) {if (!Object.getOwnPropertyDescriptor(Module, sym)) {Module[sym] = () => abort(unexportedMessage(sym, isFSSybol));}
}// end include: runtime_debug.js
var tempRet0 = 0;
var setTempRet0 = (value) => { tempRet0 = value; };
var getTempRet0 = () => tempRet0;// === 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 .js.htmlvar wasmBinary;
if (Module['wasmBinary']) wasmBinary = Module['wasmBinary'];legacyModuleProp('wasmBinary', 'wasmBinary');
var noExitRuntime = Module['noExitRuntime'] || true;legacyModuleProp('noExitRuntime', 'noExitRuntime');if (typeof WebAssembly != 'object') {abort('no native wasm support detected');
}// include: runtime_safe_heap.js// 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)/** @param {number} ptr@param {number} value@param {string} type@param {number|boolean=} noSafe */
function setValue(ptr, value, type = 'i8', noSafe) {if (type.charAt(type.length-1) === '*') type = 'i32';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);}
}/** @param {number} ptr@param {string} type@param {number|boolean=} noSafe */
function getValue(ptr, type = 'i8', noSafe) {if (type.charAt(type.length-1) === '*') type = 'i32';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 Number(HEAPF64[((ptr)>>3)]);default: abort('invalid type for getValue: ' + type);}return null;
}// end include: runtime_safe_heap.js
// Wasm globalsvar wasmMemory;//========================================
// 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;/** @type {function(*, string=)} */
function assert(condition, text) {if (!condition) {abort('Assertion failed' + (text ? ': ' + 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 functionassert(func, 'Cannot call unknown function ' + ident + ', make sure it is exported');return func;
}// C calling interface.
/** @param {string|null=} returnType@param {Array=} argTypes@param {Arguments|Array=} args@param {Object=} opts */
function ccall(ident, returnType, argTypes, args, opts) {// For fast lookup of conversion functionsvar 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;assert(returnType !== 'array', 'Return type should not be "array".');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);function onDone(ret) {if (stack !== 0) stackRestore(stack);return convertReturnValue(ret);}ret = onDone(ret);return ret;
}/** @param {string=} returnType@param {Array=} argTypes@param {Object=} opts */
function cwrap(ident, returnType, argTypes, opts) {return function() {return ccall(ident, returnType, argTypes, arguments, opts);}
}// We used to include malloc/free by default in the past. Show a helpful error in
// builds with assertions.
function _malloc() {abort("malloc() called but not included in the build - add '_malloc' to EXPORTED_FUNCTIONS");
}
function _free() {// Show a helpful error since we used to include free by default in the past.abort("free() called but not included in the build - add '_free' to EXPORTED_FUNCTIONS");
}// include: runtime_legacy.jsvar ALLOC_NORMAL = 0; // Tries to use _malloc()
var ALLOC_STACK = 1; // Lives for the duration of the current function call/*** allocate(): This function is no longer used by emscripten but is kept around to avoid* breaking external users.* You should normally not use allocate(), and instead allocate* memory using _malloc()/stackAlloc(), initialize it with* setValue(), and so forth.* @param {(Uint8Array|Array<number>)} slab: An array of data.* @param {number=} allocator : How to allocate memory, see ALLOC_**/
function allocate(slab, allocator) {var ret;assert(typeof allocator == 'number', 'allocate no longer takes a type argument')assert(typeof slab != 'number', 'allocate no longer takes a number as arg0')if (allocator == ALLOC_STACK) {ret = stackAlloc(slab.length);} else {ret = abort('malloc was not included, but is needed in allocate. Adding "_malloc" to EXPORTED_FUNCTIONS should fix that. This may be a bug in the compiler, please file an issue.');;}if (!slab.subarray && !slab.slice) {slab = new Uint8Array(slab);}HEAPU8.set(slab, ret);return ret;
}// end include: runtime_legacy.js
// include: runtime_strings.js// runtime_strings.js: Strings related runtime functions that are part of both MINIMAL_RUNTIME and regular runtime.var UTF8Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder('utf8') : undefined;// 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.
/*** heapOrArray is either a regular array, or a JavaScript typed array view.* @param {number} idx* @param {number=} maxBytesToRead* @return {string}*/
function UTF8ArrayToString(heapOrArray, 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 (heapOrArray[endPtr] && !(endPtr >= endIdx)) ++endPtr;if (endPtr - idx > 16 && heapOrArray.buffer && UTF8Decoder) {return UTF8Decoder.decode(heapOrArray.subarray(idx, endPtr));} else {var str = '';// If building with TextDecoder, we have already computed the string length above, so test loop end condition against thatwhile (idx < endPtr) {// For UTF8 byte structure, see:// // .txt// u0 = heapOrArray[idx++];if (!(u0 & 0x80)) { str += String.fromCharCode(u0); continue; }var u1 = heapOrArray[idx++] & 63;if ((u0 & 0xE0) == 0xC0) { str += String.fromCharCode(((u0 & 31) << 6) | u1); continue; }var u2 = heapOrArray[idx++] & 63;if ((u0 & 0xF0) == 0xE0) {u0 = ((u0 & 15) << 12) | (u1 << 6) | u2;} else {if ((u0 & 0xF8) != 0xF0) warnOnce('Invalid UTF-8 leading byte 0x' + u0.toString(16) + ' encountered when deserializing a UTF-8 string in wasm memory to a JS string!');u0 = ((u0 & 7) << 18) | (u1 << 12) | (u2 << 6) | (heapOrArray[idx++] & 63);}if (u0 < 0x10000) {str += String.fromCharCode(u0);} else {var ch = u0 - 0x10000;str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));}}}return str;
}// Given a pointer 'ptr' to a null-terminated UTF8-encoded string in the emscripten HEAP, returns a
// copy of that string as a Javascript String object.
// maxBytesToRead: an optional length that specifies the maximum number of bytes to read. You can omit
// this parameter to scan the string until the first \0 byte. If maxBytesToRead is
// passed, and the string at [ptr, ptr+maxBytesToReadr[ contains a null byte in the
// middle, then the string will cut short at that byte index (i.e. maxBytesToRead will
// not produce a string of exact length [ptr, ptr+maxBytesToRead[)
// N.B. mixing frequent uses of UTF8ToString() with and without maxBytesToRead may
// throw JS JIT optimizations off, so it is worth to consider consistently using one
// style or the other.
/*** @param {number} ptr* @param {number=} maxBytesToRead* @return {string}*/
function UTF8ToString(ptr, maxBytesToRead) {;return ptr ? UTF8ArrayToString(HEAPU8, ptr, maxBytesToRead) : '';
}// Copies the given Javascript String object 'str' to the given byte array at address 'outIdx',
// encoded in UTF8 form and null-terminated. The copy will require at most str.length*4+1 bytes of space in the HEAP.
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
// str: the Javascript string to copy.
// heap: the array to copy to. Each index in this array is assumed to be one 8-byte element.
// outIdx: The starting offset in the array to begin the copying.
// maxBytesToWrite: The maximum number of bytes this function can write to the array.
// This count should include the null terminator,
// i.e. if maxBytesToWrite=1, only the null terminator will be written and nothing else.
// maxBytesToWrite=0 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.function stringToUTF8Array(str, heap, outIdx, maxBytesToWrite) {if (!(maxBytesToWrite > 0)) // Parameter maxBytesToWrite is not optional. Negative values, 0, null, undefined and false each don't write out any bytes.return 0;var startIdx = outIdx;var endIdx = outIdx + maxBytesToWrite - 1; // -1 for string null terminator.for (var i = 0; i < str.length; ++i) {// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8.// See .html#utf16-3// For UTF8 byte structure, see and .txt and u = str.charCodeAt(i); // possibly a lead surrogateif (u >= 0xD800 && u <= 0xDFFF) {var u1 = str.charCodeAt(++i);u = 0x10000 + ((u & 0x3FF) << 10) | (u1 & 0x3FF);}if (u <= 0x7F) {if (outIdx >= endIdx) break;heap[outIdx++] = u;} else if (u <= 0x7FF) {if (outIdx + 1 >= endIdx) break;heap[outIdx++] = 0xC0 | (u >> 6);heap[outIdx++] = 0x80 | (u & 63);} else if (u <= 0xFFFF) {if (outIdx + 2 >= endIdx) break;heap[outIdx++] = 0xE0 | (u >> 12);heap[outIdx++] = 0x80 | ((u >> 6) & 63);heap[outIdx++] = 0x80 | (u & 63);} else {if (outIdx + 3 >= endIdx) break;if (u > 0x10FFFF) warnOnce('Invalid Unicode code point 0x' + u.toString(16) + ' encountered when serializing a JS string to a UTF-8 string in wasm memory! (Valid unicode code points should be in range 0-0x10FFFF).');heap[outIdx++] = 0xF0 | (u >> 18);heap[outIdx++] = 0x80 | ((u >> 12) & 63);heap[outIdx++] = 0x80 | ((u >> 6) & 63);heap[outIdx++] = 0x80 | (u & 63);}}// Null-terminate the pointer to the buffer.heap[outIdx] = 0;return outIdx - startIdx;
}// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF8 form. The copy will require at most str.length*4+1 bytes of space in the HEAP.
// Use the function lengthBytesUTF8 to compute the exact number of bytes (excluding null terminator) that this function will write.
// Returns the number of bytes written, EXCLUDING the null terminator.function stringToUTF8(str, outPtr, maxBytesToWrite) {assert(typeof maxBytesToWrite == 'number', 'stringToUTF8(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');return stringToUTF8Array(str, HEAPU8,outPtr, maxBytesToWrite);
}// Returns the number of bytes the given Javascript string takes if encoded as a UTF8 byte array, EXCLUDING the null terminator byte.
function lengthBytesUTF8(str) {var len = 0;for (var i = 0; i < str.length; ++i) {// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! So decode UTF16->UTF32->UTF8.// See .html#utf16-3var u = str.charCodeAt(i); // possibly a lead surrogateif (u >= 0xD800 && u <= 0xDFFF) u = 0x10000 + ((u & 0x3FF) << 10) | (str.charCodeAt(++i) & 0x3FF);if (u <= 0x7F) ++len;else if (u <= 0x7FF) len += 2;else if (u <= 0xFFFF) len += 3;else len += 4;}return len;
}// end include: runtime_strings.js
// include: runtime_strings_extra.js// runtime_strings_extra.js: Strings related runtime functions that are available only in regular runtime.// 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 UTF16LE-encoded string in the emscripten HEAP, returns
// a copy of that string as a Javascript String object.var UTF16Decoder = typeof TextDecoder != 'undefined' ? new TextDecoder('utf-16le') : undefined;function UTF16ToString(ptr, maxBytesToRead) {assert(ptr % 2 == 0, 'Pointer passed to UTF16ToString must be aligned to two bytes!');var endPtr = ptr;// 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.var idx = endPtr >> 1;var maxIdx = idx + maxBytesToRead / 2;// If maxBytesToRead is not passed explicitly, it will be undefined, and this// will always evaluate to true. This saves on code size.while (!(idx >= maxIdx) && HEAPU16[idx]) ++idx;endPtr = idx << 1;if (endPtr - ptr > 32 && UTF16Decoder) {return UTF16Decoder.decode(HEAPU8.subarray(ptr, endPtr));} else {var str = '';// If maxBytesToRead is not passed explicitly, it will be undefined, and the for-loop's condition// will always evaluate to true. The loop is then terminated on the first null char.for (var i = 0; !(i >= maxBytesToRead / 2); ++i) {var codeUnit = HEAP16[(((ptr)+(i*2))>>1)];if (codeUnit == 0) break;// fromCharCode constructs a character from a UTF-16 code unit, so we can pass the UTF16 string right through.str += String.fromCharCode(codeUnit);}return str;}
}// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF16 form. The copy will require at most str.length*4+2 bytes of space in the HEAP.
// Use the function lengthBytesUTF16() to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
// str: the Javascript string to copy.
// outPtr: Byte address in Emscripten HEAP where to write the string to.
// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
// terminator, i.e. if maxBytesToWrite=2, only the null terminator will be written and nothing else.
// maxBytesToWrite<2 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.function stringToUTF16(str, outPtr, maxBytesToWrite) {assert(outPtr % 2 == 0, 'Pointer passed to stringToUTF16 must be aligned to two bytes!');assert(typeof maxBytesToWrite == 'number', 'stringToUTF16(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');// Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.if (maxBytesToWrite === undefined) {maxBytesToWrite = 0x7FFFFFFF;}if (maxBytesToWrite < 2) return 0;maxBytesToWrite -= 2; // Null terminator.var startPtr = outPtr;var numCharsToWrite = (maxBytesToWrite < str.length*2) ? (maxBytesToWrite / 2) : str.length;for (var i = 0; i < numCharsToWrite; ++i) {// charCodeAt returns a UTF-16 encoded code unit, so it can be directly written to the HEAP.var codeUnit = str.charCodeAt(i); // possibly a lead surrogateHEAP16[((outPtr)>>1)] = codeUnit;outPtr += 2;}// Null-terminate the pointer to the HEAP.HEAP16[((outPtr)>>1)] = 0;return outPtr - startPtr;
}// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.function lengthBytesUTF16(str) {return str.length*2;
}function UTF32ToString(ptr, maxBytesToRead) {assert(ptr % 4 == 0, 'Pointer passed to UTF32ToString must be aligned to four bytes!');var i = 0;var str = '';// If maxBytesToRead is not passed explicitly, it will be undefined, and this// will always evaluate to true. This saves on code size.while (!(i >= maxBytesToRead / 4)) {var utf32 = HEAP32[(((ptr)+(i*4))>>2)];if (utf32 == 0) break;++i;// Gotcha: fromCharCode constructs a character from a UTF-16 encoded code (pair), not from a Unicode code point! So encode the code point to UTF-16 for constructing.// See .html#utf16-3if (utf32 >= 0x10000) {var ch = utf32 - 0x10000;str += String.fromCharCode(0xD800 | (ch >> 10), 0xDC00 | (ch & 0x3FF));} else {str += String.fromCharCode(utf32);}}return str;
}// Copies the given Javascript String object 'str' to the emscripten HEAP at address 'outPtr',
// null-terminated and encoded in UTF32 form. The copy will require at most str.length*4+4 bytes of space in the HEAP.
// Use the function lengthBytesUTF32() to compute the exact number of bytes (excluding null terminator) that this function will write.
// Parameters:
// str: the Javascript string to copy.
// outPtr: Byte address in Emscripten HEAP where to write the string to.
// maxBytesToWrite: The maximum number of bytes this function can write to the array. This count should include the null
// terminator, i.e. if maxBytesToWrite=4, only the null terminator will be written and nothing else.
// maxBytesToWrite<4 does not write any bytes to the output, not even the null terminator.
// Returns the number of bytes written, EXCLUDING the null terminator.function stringToUTF32(str, outPtr, maxBytesToWrite) {assert(outPtr % 4 == 0, 'Pointer passed to stringToUTF32 must be aligned to four bytes!');assert(typeof maxBytesToWrite == 'number', 'stringToUTF32(str, outPtr, maxBytesToWrite) is missing the third parameter that specifies the length of the output buffer!');// Backwards compatibility: if max bytes is not specified, assume unsafe unbounded write is allowed.if (maxBytesToWrite === undefined) {maxBytesToWrite = 0x7FFFFFFF;}if (maxBytesToWrite < 4) return 0;var startPtr = outPtr;var endPtr = startPtr + maxBytesToWrite - 4;for (var i = 0; i < str.length; ++i) {// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.// See .html#utf16-3var codeUnit = str.charCodeAt(i); // possibly a lead surrogateif (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) {var trailSurrogate = str.charCodeAt(++i);codeUnit = 0x10000 + ((codeUnit & 0x3FF) << 10) | (trailSurrogate & 0x3FF);}HEAP32[((outPtr)>>2)] = codeUnit;outPtr += 4;if (outPtr + 4 > endPtr) break;}// Null-terminate the pointer to the HEAP.HEAP32[((outPtr)>>2)] = 0;return outPtr - startPtr;
}// Returns the number of bytes the given Javascript string takes if encoded as a UTF16 byte array, EXCLUDING the null terminator byte.function lengthBytesUTF32(str) {var len = 0;for (var i = 0; i < str.length; ++i) {// Gotcha: charCodeAt returns a 16-bit word that is a UTF-16 encoded code unit, not a Unicode code point of the character! We must decode the string to UTF-32 to the heap.// See .html#utf16-3var codeUnit = str.charCodeAt(i);if (codeUnit >= 0xD800 && codeUnit <= 0xDFFF) ++i; // possibly a lead surrogate, so skip over the tail surrogate.len += 4;}return len;
}// Allocate heap space for a JS string, and write it there.
// It is the responsibility of the caller to free() that memory.
function allocateUTF8(str) {var size = lengthBytesUTF8(str) + 1;var ret = abort('malloc was not included, but is needed in allocateUTF8. Adding "_malloc" to EXPORTED_FUNCTIONS should fix that. This may be a bug in the compiler, please file an issue.');;if (ret) stringToUTF8Array(str, HEAP8, ret, size);return ret;
}// Allocate stack space for a JS string, and write it there.
function allocateUTF8OnStack(str) {var size = lengthBytesUTF8(str) + 1;var ret = stackAlloc(size);stringToUTF8Array(str, HEAP8, ret, size);return ret;
}// Deprecated: This function should not be called because it is unsafe and does not provide
// a maximum length limit of how many bytes it is allowed to write. Prefer calling the
// function stringToUTF8Array() instead, which takes in a maximum length that can be used
// to be secure from out of bounds writes.
/** @deprecated@param {boolean=} dontAddNull */
function writeStringToMemory(string, buffer, dontAddNull) {warnOnce('writeStringToMemory is deprecated and should not be called! Use stringToUTF8() instead!');var /** @type {number} */ lastChar, /** @type {number} */ end;if (dontAddNull) {// stringToUTF8Array always appends null. If we don't want to do that, remember the// character that existed at the location where the null will be placed, and restore// that after the write (below).end = buffer + lengthBytesUTF8(string);lastChar = HEAP8[end];}stringToUTF8(string, buffer, Infinity);if (dontAddNull) HEAP8[end] = lastChar; // Restore the value under the null character.
}function writeArrayToMemory(array, buffer) {assert(array.length >= 0, 'writeArrayToMemory array must have a length (should be an array or typed array)')HEAP8.set(array, buffer);
}/** @param {boolean=} dontAddNull */
function writeAsciiToMemory(str, buffer, dontAddNull) {for (var i = 0; i < str.length; ++i) {assert(str.charCodeAt(i) === (str.charCodeAt(i) & 0xff));HEAP8[((buffer++)>>0)] = str.charCodeAt(i);}// Null-terminate the pointer to the HEAP.if (!dontAddNull) HEAP8[((buffer)>>0)] = 0;
}// end include: runtime_strings_extra.js
// Memory managementvar HEAP,
/** @type {!ArrayBuffer} */buffer,
/** @type {!Int8Array} */HEAP8,
/** @type {!Uint8Array} */HEAPU8,
/** @type {!Int16Array} */HEAP16,
/** @type {!Uint16Array} */HEAPU16,
/** @type {!Int32Array} */HEAP32,
/** @type {!Uint32Array} */HEAPU32,
/** @type {!Float32Array} */HEAPF32,
/** @type {!Float64Array} */HEAPF64;function updateGlobalBufferAndViews(buf) {buffer = buf;Module['HEAP8'] = HEAP8 = new Int8Array(buf);Module['HEAP16'] = HEAP16 = new Int16Array(buf);Module['HEAP32'] = HEAP32 = new Int32Array(buf);Module['HEAPU8'] = HEAPU8 = new Uint8Array(buf);Module['HEAPU16'] = HEAPU16 = new Uint16Array(buf);Module['HEAPU32'] = HEAPU32 = new Uint32Array(buf);Module['HEAPF32'] = HEAPF32 = new Float32Array(buf);Module['HEAPF64'] = HEAPF64 = new Float64Array(buf);
}var TOTAL_STACK = 5242880;
if (Module['TOTAL_STACK']) assert(TOTAL_STACK === Module['TOTAL_STACK'], 'the stack size can no longer be determined at runtime')var INITIAL_MEMORY = Module['INITIAL_MEMORY'] || 16777216;legacyModuleProp('INITIAL_MEMORY', 'INITIAL_MEMORY');assert(INITIAL_MEMORY >= TOTAL_STACK, 'INITIAL_MEMORY should be larger than TOTAL_STACK, was ' + INITIAL_MEMORY + '! (TOTAL_STACK=' + TOTAL_STACK + ')');// check for full engine support (use string 'subarray' to avoid closure compiler confusion)
assert(typeof Int32Array != 'undefined' && typeof Float64Array !== 'undefined' && Int32Array.prototype.subarray != undefined && Int32Array.prototype.set != undefined,'JS engine does not provide full typed array support');// If memory is defined in wasm, the user can't provide it.
assert(!Module['wasmMemory'], 'Use of `wasmMemory` detected. Use -s IMPORTED_MEMORY to define wasmMemory externally');
assert(INITIAL_MEMORY == 16777216, 'Detected runtime INITIAL_MEMORY setting. Use -s IMPORTED_MEMORY to define wasmMemory dynamically');// include: runtime_init_table.js
// In regular non-RELOCATABLE mode the table is exported
// from the wasm module and this will be assigned once
// the exports are available.
var wasmTable;// end include: runtime_init_table.js
// include: runtime_stack_check.js// Initializes the stack cookie. Called at the startup of main and at the startup of each thread in pthreads mode.
function writeStackCookie() {var max = _emscripten_stack_get_end();assert((max & 3) == 0);// The stack grow downwards towards _emscripten_stack_get_end.// We write cookies to the final two words in the stack and detect if they are// ever overwritten.HEAP32[((max)>>2)] = 0x2135467;HEAP32[(((max)+(4))>>2)] = 0x89BACDFE;// Also test the global address 0 for integrity.HEAP32[0] = 0x63736d65; /* 'emsc' */
}function checkStackCookie() {if (ABORT) return;var max = _emscripten_stack_get_end();var cookie1 = HEAPU32[((max)>>2)];var cookie2 = HEAPU32[(((max)+(4))>>2)];if (cookie1 != 0x2135467 || cookie2 != 0x89BACDFE) {abort('Stack overflow! Stack cookie has been overwritten, expected hex dwords 0x89BACDFE and 0x2135467, but received 0x' + cookie2.toString(16) + ' 0x' + cookie1.toString(16));}// Also test the global address 0 for integrity.if (HEAP32[0] !== 0x63736d65 /* 'emsc' */) abort('Runtime error: The application has corrupted its heap memory area (address zero)!');
}// end include: runtime_stack_check.js
// include: runtime_assertions.js// Endianness check
(function() {var h16 = new Int16Array(1);var h8 = new Int8Array(h16.buffer);h16[0] = 0x6373;if (h8[0] !== 0x73 || h8[1] !== 0x63) throw 'Runtime error: expected the system to be little-endian! (Run with -s SUPPORT_BIG_ENDIAN=1 to bypass)';
})();// end include: runtime_assertions.js
var __ATPRERUN__ = []; // functions called before the runtime is initialized
var __ATINIT__ = []; // functions called during startup
var __ATEXIT__ = []; // functions called during shutdown
var __ATPOSTRUN__ = []; // functions called after the main() is calledvar runtimeInitialized = false;function keepRuntimeAlive() {return noExitRuntime;
}function preRun() {if (Module['preRun']) {if (typeof Module['preRun'] == 'function') Module['preRun'] = [Module['preRun']];while (Module['preRun'].length) {addOnPreRun(Module['preRun'].shift());}}callRuntimeCallbacks(__ATPRERUN__);
}function initRuntime() {checkStackCookie();assert(!runtimeInitialized);runtimeInitialized = true;callRuntimeCallbacks(__ATINIT__);
}function postRun() {checkStackCookie();if (Module['postRun']) {if (typeof Module['postRun'] == 'function') Module['postRun'] = [Module['postRun']];while (Module['postRun'].length) {addOnPostRun(Module['postRun'].shift());}}callRuntimeCallbacks(__ATPOSTRUN__);
}function addOnPreRun(cb) {__ATPRERUN__.unshift(cb);
}function addOnInit(cb) {__ATINIT__.unshift(cb);
}function addOnExit(cb) {
}function addOnPostRun(cb) {__ATPOSTRUN__.unshift(cb);
}// include: runtime_math.js// // // // (Math.imul, 'This browser does not support Math.imul(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
assert(Math.fround, 'This browser does not support Math.fround(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
assert(Math.clz32, 'This browser does not support Math.clz32(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');
assert(Math.trunc, 'This browser does not support Math.trunc(), build with LEGACY_VM_SUPPORT or POLYFILL_OLD_MATH_FUNCTIONS to add in a polyfill');// end include: runtime_math.js
// A counter of dependencies for calling run(). If we need to
// do asynchronous work before running, increment this and
// decrement it. Incrementing must happen in a place like
// Module.preRun (used by emcc to add file preloading).
// Note that you can add dependencies in preRun, even though
// it happens right before run - run will be postponed until
// the dependencies are met.
var runDependencies = 0;
var runDependencyWatcher = null;
var dependenciesFulfilled = null; // overridden to take different actions when all run dependencies are fulfilled
var runDependencyTracking = {};function getUniqueRunDependency(id) {var orig = id;while (1) {if (!runDependencyTracking[id]) return id;id = orig + Math.random();}
}function addRunDependency(id) {runDependencies++;if (Module['monitorRunDependencies']) {Module['monitorRunDependencies'](runDependencies);}if (id) {assert(!runDependencyTracking[id]);runDependencyTracking[id] = 1;if (runDependencyWatcher === null && typeof setInterval != 'undefined') {// Check for missing dependencies every few secondsrunDependencyWatcher = setInterval(function() {if (ABORT) {clearInterval(runDependencyWatcher);runDependencyWatcher = null;return;}var shown = false;for (var dep in runDependencyTracking) {if (!shown) {shown = true;err('still waiting on run dependencies:');}err('dependency: ' + dep);}if (shown) {err('(end of list)');}}, 10000);}} else {err('warning: run dependency added without ID');}
}function removeRunDependency(id) {runDependencies--;if (Module['monitorRunDependencies']) {Module['monitorRunDependencies'](runDependencies);}if (id) {assert(runDependencyTracking[id]);delete runDependencyTracking[id];} else {err('warning: run dependency removed without ID');}if (runDependencies == 0) {if (runDependencyWatcher !== null) {clearInterval(runDependencyWatcher);runDependencyWatcher = null;}if (dependenciesFulfilled) {var callback = dependenciesFulfilled;dependenciesFulfilled = null;callback(); // can add another dependenciesFulfilled}}
}Module["preloadedImages"] = {}; // maps url to image data
Module["preloadedAudios"] = {}; // maps url to audio data/** @param {string|number=} what */
function abort(what) {{if (Module['onAbort']) {Module['onAbort'](what);}}what = 'Aborted(' + what + ')';// TODO(sbc): Should we remove printing and leave it up to whoever// catches the exception?err(what);ABORT = true;EXITSTATUS = 1;// Use a wasm runtime error, because a JS error might be seen as a foreign// exception, which means we'd run destructors on it. We need the error to// simply make the program stop.// Suppress closure compiler warning here. Closure compiler's builtin extern// defintion for WebAssembly.RuntimeError claims it takes no arguments even// though it can.// TODO(): Remove if/when upstream closure gets fixed./** @suppress {checkTypes} */var e = isWechat ? {} : new WebAssembly.RuntimeError(what);// Throw the error whether or not MODULARIZE is set because abort is used// in code paths apart from instantiation where an exception is expected// to be thrown when abort is called.throw e;
}// {{MEM_INITIALIZER}}// include: memoryprofiler.js// end include: memoryprofiler.js
// show errors on likely calls to FS when it was not included
var FS = {error: function() {abort('Filesystem support (FS) was not included. The problem is that you are using files from JS, but files were not used from C/C++, so filesystem support was not auto-included. You can force-include filesystem support with -s FORCE_FILESYSTEM=1');},init: function() { FS.error() },createDataFile: function() { FS.error() },createPreloadedFile: function() { FS.error() },createLazyFile: function() { FS.error() },open: function() { FS.error() },mkdev: function() { FS.error() },registerDevice: function() { FS.error() },analyzePath: function() { FS.error() },loadFilesFromDB: function() { FS.error() },ErrnoError: function ErrnoError() { FS.error() },
};
Module['FS_createDataFile'] = FS.createDataFile;
Module['FS_createPreloadedFile'] = FS.createPreloadedFile;// include: URIUtils.js// Prefix of data URIs emitted by SINGLE_FILE and related options.
var dataURIPrefix = 'data:application/octet-stream;base64,';// Indicates whether filename is a base64 data URI.
function isDataURI(filename) {// Prefix of data URIs emitted by SINGLE_FILE and related options.return filename.startsWith(dataURIPrefix);
}// Indicates whether filename is delivered via file protocol (as opposed to http/https)
function isFileURI(filename) {return filename.startsWith('file://');
}// end include: URIUtils.js
/** @param {boolean=} fixedasm */
function createExportWrapper(name, fixedasm) {return function() {var displayName = name;var asm = fixedasm;if (!fixedasm) {asm = Module['asm'];}assert(runtimeInitialized, 'native function `' + displayName + '` called before runtime initialization');if (!asm[name]) {assert(asm[name], 'exported native function `' + displayName + '` not found');}return asm[name].apply(null, arguments);};
}var wasmBinaryFile = 'hello.wasm';
//这里作为demo，可以上面直接指定即可
if (isWechat) {wasmBinaryFile = "/package_lesson1/assets/hello.wasm";
}if (!isWechat) {scriptDirectory + wasmBinaryFile
}function getBinary(file) {try {if (file == wasmBinaryFile && wasmBinary) {return new Uint8Array(wasmBinary);}if (readBinary) {return readBinary(file);} else {throw "both async and sync fetching of the wasm failed";}}catch (err) {abort(err);}
}function getBinaryPromise() {// If we don't have the binary yet, try to to load it asynchronously.// Fetch has some additional restrictions over XHR, like it can't be used on a file:// url.// See // Cordova or Electron apps are typically loaded from a file:// url.// So use fetch if it is available and the url is not a file, otherwise fall back to XHR.if (!wasmBinary && (ENVIRONMENT_IS_WEB || ENVIRONMENT_IS_WORKER)) {if (typeof fetch == 'function'&& !isFileURI(wasmBinaryFile)) {return fetch(wasmBinaryFile, { credentials: 'same-origin' }).then(function(response) {if (!response['ok']) {throw "failed to load wasm binary file at '" + wasmBinaryFile + "'";}return response['arrayBuffer']();}).catch(function () {return getBinary(wasmBinaryFile);});}else {if (readAsync) {// fetch is not available or url is file => try XHR (readAsync uses XHR internally)return new Promise(function(resolve, reject) {readAsync(wasmBinaryFile, function(response) { resolve(new Uint8Array(/** @type{!ArrayBuffer} */(response))) }, reject)});}}}// Otherwise, getBinary should be able to get it synchronouslyreturn Promise.resolve().then(function() { return getBinary(wasmBinaryFile); });
}// Create the wasm instance.
// Receives the wasm imports, returns the exports.
function createWasm() {// prepare importsvar info = {'env': asmLibraryArg,'wasi_snapshot_preview1': asmLibraryArg,};// Load the wasm module and create an instance of using native support in the JS engine.// handle a generated wasm instance, receiving its exports and// performing other necessary setup/** @param {WebAssembly.Module=} module*/function receiveInstance(instance, module) {var exports = instance.exports;Module['asm'] = exports;wasmMemory = Module['asm']['memory'];assert(wasmMemory, "memory not found in wasm exports");// This assertion doesn't hold when emscripten is run in --post-link// mode.// TODO(sbc): Read INITIAL_MEMORY out of the wasm file in post-link mode.//assert(wasmMemory.buffer.byteLength === 16777216);updateGlobalBufferAndViews(wasmMemory.buffer);wasmTable = Module['asm']['__indirect_function_table'];assert(wasmTable, "table not found in wasm exports");addOnInit(Module['asm']['__wasm_call_ctors']);removeRunDependency('wasm-instantiate');}// we can't run yet (except in a pthread, where we have a custom sync instantiator)addRunDependency('wasm-instantiate');// Prefer streaming instantiation if available.// Async compilation can be confusing when an error on the page overwrites Module// (for example, if the order of elements is wrong, and the one defining Module is// later), so we save Module and check it later.var trueModule = Module;function receiveInstantiationResult(result) {// 'result' is a ResultObject object which has both the module and instance.// receiveInstance() will swap in the exports (to Module.asm) so they can be calledassert(Module === trueModule, 'the Module object should not be replaced during async compilation - perhaps the order of HTML elements is wrong?');trueModule = null;// TODO: Due to Closure regression , the above line no longer optimizes out down to the following line.// When the regression is fixed, can restore the above USE_PTHREADS-enabled path.receiveInstance(result['instance']);}function instantiateArrayBuffer(receiver) {var r;if (isWechat) {r = WebAssembly.instantiate(wasmBinaryFile, info);} else {r = getBinaryPromise().then(function(binary) {return WebAssembly.instantiate(binary, info);}).then(function (instance) {return instance;});}return r.then(receiver, function(reason) {err('failed to asynchronously prepare wasm: ' + reason);// Warn on some common problems.if (isFileURI(wasmBinaryFile)) {err('warning: Loading from a file URI (' + wasmBinaryFile + ') is not supported in most browsers. See .html#how-do-i-run-a-local-webserver-for-testing-why-does-my-program-stall-in-downloading-or-preparing');}abort(reason);});}function instantiateAsync() {return instantiateArrayBuffer(receiveInstantiationResult);}// User shell pages can write their own Module.instantiateWasm = function(imports, successCallback) callback// to manually instantiate the Wasm module themselves. This allows pages to run the instantiation parallel// to any other async startup actions they are performing.// Also pthreads and wasm workers initialize the wasm instance through this path.if (Module['instantiateWasm']) {try {var exports = Module['instantiateWasm'](info, receiveInstance);return exports;} catch(e) {err('Module.instantiateWasm callback failed with error: ' + e);return false;}}instantiateAsync();return {}; // no exports yet; we'll fill them in later
}// Globals used by JS i64 conversions (see makeSetValue)
var tempDouble;
var tempI64;// === Body ===var ASM_CONSTS = {};function callRuntimeCallbacks(callbacks) {while (callbacks.length > 0) {var callback = callbacks.shift();if (typeof callback == 'function') {callback(Module); // Pass the module as the first argument.continue;}var func = callback.func;if (typeof func == 'number') {if (callback.arg === undefined) {// Run the wasm function ptr with signature 'v'. If no function// with such signature was exported, this call does not need// to be emitted (and would confuse Closure)getWasmTableEntry(func)();} else {// If any function with signature 'vi' was exported, run// the callback with that signature.getWasmTableEntry(func)(callback.arg);}} else {func(callback.arg === undefined ? null : callback.arg);}}}function withStackSave(f) {var stack = stackSave();var ret = f();stackRestore(stack);return ret;}function demangle(func) {warnOnce('warning: build with -s DEMANGLE_SUPPORT=1 to link in libcxxabi demangling');return func;}function demangleAll(text) {var regex =/\b_Z[\w\d_]+/g;return text.replace(regex,function(x) {var y = demangle(x);return x === y ? x : (y + ' [' + x + ']');});}var wasmTableMirror = [];function getWasmTableEntry(funcPtr) {var func = wasmTableMirror[funcPtr];if (!func) {if (funcPtr >= wasmTableMirror.length) wasmTableMirror.length = funcPtr + 1;wasmTableMirror[funcPtr] = func = wasmTable.get(funcPtr);}assert(wasmTable.get(funcPtr) == func, "JavaScript-side Wasm function table mirror is out of date!");return func;}function handleException(e) {// Certain exception types we do not treat as errors since they are used for// internal control flow.// 1. ExitStatus, which is thrown by exit()// 2. "unwind", which is thrown by emscripten_unwind_to_js_event_loop() and others// that wish to return to JS event loop.if (e instanceof ExitStatus || e == 'unwind') {return EXITSTATUS;}quit_(1, e);}function jsStackTrace() {var error = new Error();if (!error.stack) {// IE10+ special cases: It does have callstack info, but it is only populated if an Error object is thrown,// so try that as a special-case.try {throw new Error();} catch(e) {error = e;}if (!error.stack) {return '(no stack trace available)';}}return error.stack.toString();}function setWasmTableEntry(idx, func) {wasmTable.set(idx, func);wasmTableMirror[idx] = func;}function stackTrace() {var js = jsStackTrace();if (Module['extraStackTrace']) js += '\n' + Module['extraStackTrace']();return demangleAll(js);}function _emscripten_memcpy_big(dest, src, num) {HEAPU8.copyWithin(dest, src, src + num);}function flush_NO_FILESYSTEM() {// flush anything remaining in the buffers during shutdown___stdio_exit();var buffers = SYSCALLS.buffers;if (buffers[1].length) SYSCALLS.printChar(1, 10);if (buffers[2].length) SYSCALLS.printChar(2, 10);}var SYSCALLS = {buffers:[null,[],[]],printChar:function(stream, curr) {var buffer = SYSCALLS.buffers[stream];assert(buffer);if (curr === 0 || curr === 10) {(stream === 1 ? out : err)(UTF8ArrayToString(buffer, 0));buffer.length = 0;} else {buffer.push(curr);}},varargs:undefined,get:function() {assert(SYSCALLS.varargs != undefined);SYSCALLS.varargs += 4;var ret = HEAP32[(((SYSCALLS.varargs)-(4))>>2)];return ret;},getStr:function(ptr) {var ret = UTF8ToString(ptr);return ret;},get64:function(low, high) {if (low >= 0) assert(high === 0);else assert(high === -1);return low;}};function _fd_write(fd, iov, iovcnt, pnum) {;// hack to support printf in SYSCALLS_REQUIRE_FILESYSTEM=0var num = 0;for (var i = 0; i < iovcnt; i++) {var ptr = HEAP32[((iov)>>2)];var len = HEAP32[(((iov)+(4))>>2)];iov += 8;for (var j = 0; j < len; j++) {SYSCALLS.printChar(fd, HEAPU8[ptr+j]);}num += len;}HEAP32[((pnum)>>2)] = num;return 0;}function _setTempRet0(val) {setTempRet0(val);}
var ASSERTIONS = true;/** @type {function(string, boolean=, number=)} */
function intArrayFromString(stringy, dontAddNull, length) {var len = length > 0 ? length : lengthBytesUTF8(stringy)+1;var u8array = new Array(len);var numBytesWritten = stringToUTF8Array(stringy, u8array, 0, u8array.length);if (dontAddNull) u8array.length = numBytesWritten;return u8array;
}function intArrayToString(array) {var ret = [];for (var i = 0; i < array.length; i++) {var chr = array[i];if (chr > 0xFF) {if (ASSERTIONS) {assert(false, 'Character code ' + chr + ' (' + String.fromCharCode(chr) + ') at offset ' + i + ' not in 0x00-0xFF.');}chr &= 0xFF;}ret.push(String.fromCharCode(chr));}return ret.join('');
}function checkIncomingModuleAPI() {ignoredModuleProp('fetchSettings');
}
var asmLibraryArg = {"emscripten_memcpy_big": _emscripten_memcpy_big,"fd_write": _fd_write,"setTempRet0": _setTempRet0
};
var asm = createWasm();
/** @type {function(...*):?} */
var ___wasm_call_ctors = Module["___wasm_call_ctors"] = createExportWrapper("__wasm_call_ctors");/** @type {function(...*):?} */
var _show = Module["_show"] = createExportWrapper("show");/** @type {function(...*):?} */
var ___errno_location = Module["___errno_location"] = createExportWrapper("__errno_location");/** @type {function(...*):?} */
var ___stdio_exit = Module["___stdio_exit"] = createExportWrapper("__stdio_exit");/** @type {function(...*):?} */
var _emscripten_stack_init = Module["_emscripten_stack_init"] = function() {return (_emscripten_stack_init = Module["_emscripten_stack_init"] = Module["asm"]["emscripten_stack_init"]).apply(null, arguments);
};/** @type {function(...*):?} */
var _emscripten_stack_get_free = Module["_emscripten_stack_get_free"] = function() {return (_emscripten_stack_get_free = Module["_emscripten_stack_get_free"] = Module["asm"]["emscripten_stack_get_free"]).apply(null, arguments);
};/** @type {function(...*):?} */
var _emscripten_stack_get_base = Module["_emscripten_stack_get_base"] = function() {return (_emscripten_stack_get_base = Module["_emscripten_stack_get_base"] = Module["asm"]["emscripten_stack_get_base"]).apply(null, arguments);
};/** @type {function(...*):?} */
var _emscripten_stack_get_end = Module["_emscripten_stack_get_end"] = function() {return (_emscripten_stack_get_end = Module["_emscripten_stack_get_end"] = Module["asm"]["emscripten_stack_get_end"]).apply(null, arguments);
};/** @type {function(...*):?} */
var stackSave = Module["stackSave"] = createExportWrapper("stackSave");/** @type {function(...*):?} */
var stackRestore = Module["stackRestore"] = createExportWrapper("stackRestore");/** @type {function(...*):?} */
var stackAlloc = Module["stackAlloc"] = createExportWrapper("stackAlloc");/** @type {function(...*):?} */
var dynCall_jiji = Module["dynCall_jiji"] = createExportWrapper("dynCall_jiji");// === Auto-generated postamble setup entry stuff ===unexportedRuntimeFunction('intArrayFromString', false);
unexportedRuntimeFunction('intArrayToString', false);
Module["ccall"] = ccall;
Module["cwrap"] = cwrap;
unexportedRuntimeFunction('setValue', false);
unexportedRuntimeFunction('getValue', false);
unexportedRuntimeFunction('allocate', false);
unexportedRuntimeFunction('UTF8ArrayToString', false);
unexportedRuntimeFunction('UTF8ToString', false);
unexportedRuntimeFunction('stringToUTF8Array', false);
unexportedRuntimeFunction('stringToUTF8', false);
unexportedRuntimeFunction('lengthBytesUTF8', false);
unexportedRuntimeFunction('stackTrace', false);
unexportedRuntimeFunction('addOnPreRun', false);
unexportedRuntimeFunction('addOnInit', false);
unexportedRuntimeFunction('addOnPreMain', false);
unexportedRuntimeFunction('addOnExit', false);
unexportedRuntimeFunction('addOnPostRun', false);
unexportedRuntimeFunction('writeStringToMemory', false);
unexportedRuntimeFunction('writeArrayToMemory', false);
unexportedRuntimeFunction('writeAsciiToMemory', false);
unexportedRuntimeFunction('addRunDependency', true);
unexportedRuntimeFunction('removeRunDependency', true);
unexportedRuntimeFunction('FS_createFolder', false);
unexportedRuntimeFunction('FS_createPath', true);
unexportedRuntimeFunction('FS_createDataFile', true);
unexportedRuntimeFunction('FS_createPreloadedFile', true);
unexportedRuntimeFunction('FS_createLazyFile', true);
unexportedRuntimeFunction('FS_createLink', false);
unexportedRuntimeFunction('FS_createDevice', true);
unexportedRuntimeFunction('FS_unlink', true);
unexportedRuntimeFunction('getLEB', false);
unexportedRuntimeFunction('getFunctionTables', false);
unexportedRuntimeFunction('alignFunctionTables', false);
unexportedRuntimeFunction('registerFunctions', false);
unexportedRuntimeFunction('addFunction', false);
unexportedRuntimeFunction('removeFunction', false);
unexportedRuntimeFunction('getFuncWrapper', false);
unexportedRuntimeFunction('prettyPrint', false);
unexportedRuntimeFunction('dynCall', false);
unexportedRuntimeFunction('getCompilerSetting', false);
unexportedRuntimeFunction('print', false);
unexportedRuntimeFunction('printErr', false);
unexportedRuntimeFunction('getTempRet0', false);
unexportedRuntimeFunction('setTempRet0', false);
unexportedRuntimeFunction('callMain', false);
unexportedRuntimeFunction('abort', false);
unexportedRuntimeFunction('keepRuntimeAlive', false);
unexportedRuntimeFunction('zeroMemory', false);
unexportedRuntimeFunction('stringToNewUTF8', false);
unexportedRuntimeFunction('abortOnCannotGrowMemory', false);
unexportedRuntimeFunction('emscripten_realloc_buffer', false);
unexportedRuntimeFunction('ENV', false);
unexportedRuntimeFunction('ERRNO_CODES', false);
unexportedRuntimeFunction('ERRNO_MESSAGES', false);
unexportedRuntimeFunction('setErrNo', false);
unexportedRuntimeFunction('inetPton4', false);
unexportedRuntimeFunction('inetNtop4', false);
unexportedRuntimeFunction('inetPton6', false);
unexportedRuntimeFunction('inetNtop6', false);
unexportedRuntimeFunction('readSockaddr', false);
unexportedRuntimeFunction('writeSockaddr', false);
unexportedRuntimeFunction('DNS', false);
unexportedRuntimeFunction('getHostByName', false);
unexportedRuntimeFunction('Protocols', false);
unexportedRuntimeFunction('Sockets', false);
unexportedRuntimeFunction('getRandomDevice', false);
unexportedRuntimeFunction('traverseStack', false);
unexportedRuntimeFunction('UNWIND_CACHE', false);
unexportedRuntimeFunction('convertPCtoSourceLocation', false);
unexportedRuntimeFunction('readAsmConstArgsArray', false);
unexportedRuntimeFunction('readAsmConstArgs', false);
unexportedRuntimeFunction('mainThreadEM_ASM', false);
unexportedRuntimeFunction('jstoi_q', false);
unexportedRuntimeFunction('jstoi_s', false);
unexportedRuntimeFunction('getExecutableName', false);
unexportedRuntimeFunction('listenOnce', false);
unexportedRuntimeFunction('autoResumeAudioContext', false);
unexportedRuntimeFunction('dynCallLegacy', false);
unexportedRuntimeFunction('getDynCaller', false);
unexportedRuntimeFunction('dynCall', false);
unexportedRuntimeFunction('handleException', false);
unexportedRuntimeFunction('runtimeKeepalivePush', false);
unexportedRuntimeFunction('runtimeKeepalivePop', false);
unexportedRuntimeFunction('callUserCallback', false);
unexportedRuntimeFunction('maybeExit', false);
unexportedRuntimeFunction('safeSetTimeout', false);
unexportedRuntimeFunction('asmjsMangle', false);
unexportedRuntimeFunction('asyncLoad', false);
unexportedRuntimeFunction('alignMemory', false);
unexportedRuntimeFunction('mmapAlloc', false);
unexportedRuntimeFunction('reallyNegative', false);
unexportedRuntimeFunction('unSign', false);
unexportedRuntimeFunction('reSign', false);
unexportedRuntimeFunction('formatString', false);
unexportedRuntimeFunction('PATH', false);
unexportedRuntimeFunction('PATH_FS', false);
unexportedRuntimeFunction('SYSCALLS', false);
unexportedRuntimeFunction('getSocketFromFD', false);
unexportedRuntimeFunction('getSocketAddress', false);
unexportedRuntimeFunction('JSEvents', false);
unexportedRuntimeFunction('registerKeyEventCallback', false);
unexportedRuntimeFunction('specialHTMLTargets', false);
unexportedRuntimeFunction('maybeCStringToJsString', false);
unexportedRuntimeFunction('findEventTarget', false);
unexportedRuntimeFunction('findCanvasEventTarget', false);
unexportedRuntimeFunction('getBoundingClientRect', false);
unexportedRuntimeFunction('fillMouseEventData', false);
unexportedRuntimeFunction('registerMouseEventCallback', false);
unexportedRuntimeFunction('registerWheelEventCallback', false);
unexportedRuntimeFunction('registerUiEventCallback', false);
unexportedRuntimeFunction('registerFocusEventCallback', false);
unexportedRuntimeFunction('fillDeviceOrientationEventData', false);
unexportedRuntimeFunction('registerDeviceOrientationEventCallback', false);
unexportedRuntimeFunction('fillDeviceMotionEventData', false);
unexportedRuntimeFunction('registerDeviceMotionEventCallback', false);
unexportedRuntimeFunction('screenOrientation', false);
unexportedRuntimeFunction('fillOrientationChangeEventData', false);
unexportedRuntimeFunction('registerOrientationChangeEventCallback', false);
unexportedRuntimeFunction('fillFullscreenChangeEventData', false);
unexportedRuntimeFunction('registerFullscreenChangeEventCallback', false);
unexportedRuntimeFunction('registerRestoreOldStyle', false);
unexportedRuntimeFunction('hideEverythingExceptGivenElement', false);
unexportedRuntimeFunction('restoreHiddenElements', false);
unexportedRuntimeFunction('setLetterbox', false);
unexportedRuntimeFunction('currentFullscreenStrategy', false);
unexportedRuntimeFunction('restoreOldWindowedStyle', false);
unexportedRuntimeFunction('softFullscreenResizeWebGLRenderTarget', false);
unexportedRuntimeFunction('doRequestFullscreen', false);
unexportedRuntimeFunction('fillPointerlockChangeEventData', false);
unexportedRuntimeFunction('registerPointerlockChangeEventCallback', false);
unexportedRuntimeFunction('registerPointerlockErrorEventCallback', false);
unexportedRuntimeFunction('requestPointerLock', false);
unexportedRuntimeFunction('fillVisibilityChangeEventData', false);
unexportedRuntimeFunction('registerVisibilityChangeEventCallback', false);
unexportedRuntimeFunction('registerTouchEventCallback', false);
unexportedRuntimeFunction('fillGamepadEventData', false);
unexportedRuntimeFunction('registerGamepadEventCallback', false);
unexportedRuntimeFunction('registerBeforeUnloadEventCallback', false);
unexportedRuntimeFunction('fillBatteryEventData', false);
unexportedRuntimeFunction('battery', false);
unexportedRuntimeFunction('registerBatteryEventCallback', false);
unexportedRuntimeFunction('setCanvasElementSize', false);
unexportedRuntimeFunction('getCanvasElementSize', false);
unexportedRuntimeFunction('demangle', false);
unexportedRuntimeFunction('demangleAll', false);
unexportedRuntimeFunction('jsStackTrace', false);
unexportedRuntimeFunction('stackTrace', false);
unexportedRuntimeFunction('getEnvStrings', false);
unexportedRuntimeFunction('checkWasiClock', false);
unexportedRuntimeFunction('flush_NO_FILESYSTEM', false);
unexportedRuntimeFunction('writeI53ToI64', false);
unexportedRuntimeFunction('writeI53ToI64Clamped', false);
unexportedRuntimeFunction('writeI53ToI64Signaling', false);
unexportedRuntimeFunction('writeI53ToU64Clamped', false);
unexportedRuntimeFunction('writeI53ToU64Signaling', false);
unexportedRuntimeFunction('readI53FromI64', false);
unexportedRuntimeFunction('readI53FromU64', false);
unexportedRuntimeFunction('convertI32PairToI53', false);
unexportedRuntimeFunction('convertU32PairToI53', false);
unexportedRuntimeFunction('setImmediateWrapped', false);
unexportedRuntimeFunction('clearImmediateWrapped', false);
unexportedRuntimeFunction('polyfillSetImmediate', false);
unexportedRuntimeFunction('uncaughtExceptionCount', false);
unexportedRuntimeFunction('exceptionLast', false);
unexportedRuntimeFunction('exceptionCaught', false);
unexportedRuntimeFunction('ExceptionInfo', false);
unexportedRuntimeFunction('CatchInfo', false);
unexportedRuntimeFunction('exception_addRef', false);
unexportedRuntimeFunction('exception_decRef', false);
unexportedRuntimeFunction('Browser', false);
unexportedRuntimeFunction('funcWrappers', false);
unexportedRuntimeFunction('getFuncWrapper', false);
unexportedRuntimeFunction('setMainLoop', false);
unexportedRuntimeFunction('wget', false);
unexportedRuntimeFunction('FS', false);
unexportedRuntimeFunction('MEMFS', false);
unexportedRuntimeFunction('TTY', false);
unexportedRuntimeFunction('PIPEFS', false);
unexportedRuntimeFunction('SOCKFS', false);
unexportedRuntimeFunction('_setNetworkCallback', false);
unexportedRuntimeFunction('tempFixedLengthArray', false);
unexportedRuntimeFunction('miniTempWebGLFloatBuffers', false);
unexportedRuntimeFunction('heapObjectForWebGLType', false);
unexportedRuntimeFunction('heapAccessShiftForWebGLHeap', false);
unexportedRuntimeFunction('GL', false);
unexportedRuntimeFunction('emscriptenWebGLGet', false);
unexportedRuntimeFunction('computeUnpackAlignedImageSize', false);
unexportedRuntimeFunction('emscriptenWebGLGetTexPixelData', false);
unexportedRuntimeFunction('emscriptenWebGLGetUniform', false);
unexportedRuntimeFunction('webglGetUniformLocation', false);
unexportedRuntimeFunction('webglPrepareUniformLocationsBeforeFirstUse', false);
unexportedRuntimeFunction('webglGetLeftBracePos', false);
unexportedRuntimeFunction('emscriptenWebGLGetVertexAttrib', false);
unexportedRuntimeFunction('writeGLArray', false);
unexportedRuntimeFunction('AL', false);
unexportedRuntimeFunction('SDL_unicode', false);
unexportedRuntimeFunction('SDL_ttfContext', false);
unexportedRuntimeFunction('SDL_audio', false);
unexportedRuntimeFunction('SDL', false);
unexportedRuntimeFunction('SDL_gfx', false);
unexportedRuntimeFunction('GLUT', false);
unexportedRuntimeFunction('EGL', false);
unexportedRuntimeFunction('GLFW_Window', false);
unexportedRuntimeFunction('GLFW', false);
unexportedRuntimeFunction('GLEW', false);
unexportedRuntimeFunction('IDBStore', false);
unexportedRuntimeFunction('runAndAbortIfError', false);
unexportedRuntimeFunction('warnOnce', false);
unexportedRuntimeFunction('stackSave', false);
unexportedRuntimeFunction('stackRestore', false);
unexportedRuntimeFunction('stackAlloc', false);
unexportedRuntimeFunction('AsciiToString', false);
unexportedRuntimeFunction('stringToAscii', false);
unexportedRuntimeFunction('UTF16ToString', false);
unexportedRuntimeFunction('stringToUTF16', false);
unexportedRuntimeFunction('lengthBytesUTF16', false);
unexportedRuntimeFunction('UTF32ToString', false);
unexportedRuntimeFunction('stringToUTF32', false);
unexportedRuntimeFunction('lengthBytesUTF32', false);
unexportedRuntimeFunction('allocateUTF8', false);
unexportedRuntimeFunction('allocateUTF8OnStack', false);
Module["writeStackCookie"] = writeStackCookie;
Module["checkStackCookie"] = checkStackCookie;
unexportedRuntimeSymbol('ALLOC_NORMAL', false);
unexportedRuntimeSymbol('ALLOC_STACK', false);var calledRun;/*** @constructor* @this {ExitStatus}*/
function ExitStatus(status) {this.name = "ExitStatus";this.message = "Program terminated with exit(" + status + ")";this.status = status;
}var calledMain = false;dependenciesFulfilled = function runCaller() {// If run has never been called, and we should call run (INVOKE_RUN is true, and Module.noInitialRun is not false)if (!calledRun) run();if (!calledRun) dependenciesFulfilled = runCaller; // try this again later, after new deps are fulfilled
};function stackCheckInit() {// This is normally called automatically during __wasm_call_ctors but need to// get these values before even running any of the ctors so we call it redundantly// here.// TODO(sbc): Move writeStackCookie to native to to avoid this._emscripten_stack_init();writeStackCookie();
}/** @type {function(Array=)} */
function run(args) {args = args || arguments_;if (runDependencies > 0) {return;}stackCheckInit();preRun();// a preRun added a dependency, run will be called laterif (runDependencies > 0) {return;}function doRun() {// run may have just been called through dependencies being fulfilled just in this very frame,// or while the async setStatus time below was happeningif (calledRun) return;calledRun = true;Module['calledRun'] = true;if (ABORT) return;initRuntime();if (Module['onRuntimeInitialized']) Module['onRuntimeInitialized']();assert(!Module['_main'], 'compiled without a main, but one is present. if you added it from JS, use Module["onRuntimeInitialized"]');postRun();}if (Module['setStatus']) {Module['setStatus']('Running...');setTimeout(function() {setTimeout(function() {Module['setStatus']('');}, 1);doRun();}, 1);} else{doRun();}checkStackCookie();
}
Module['run'] = run;function checkUnflushedContent() {// Compiler settings do not allow exiting the runtime, so flushing// the streams is not possible. but in ASSERTIONS mode we check// if there was something to flush, and if so tell the user they// should request that the runtime be exitable.// Normally we would not even include flush() at all, but in ASSERTIONS// builds we do so just for this check, and here we see if there is any// content to flush, that is, we check if there would have been// something a non-ASSERTIONS build would have not seen.// How we flush the streams depends on whether we are in SYSCALLS_REQUIRE_FILESYSTEM=0// mode (which has its own special function for this; otherwise, all// the code is inside libc)var oldOut = out;var oldErr = err;var has = false;out = err = (x) => {has = true;}try { // it doesn't matter if it failsvar flush = flush_NO_FILESYSTEM;if (flush) flush();} catch(e) {}out = oldOut;err = oldErr;if (has) {warnOnce('stdio streams had content in them that was not flushed. you should set EXIT_RUNTIME to 1 (see the FAQ), or make sure to emit a newline when you printf etc.');warnOnce('(this may also be due to not including full filesystem support - try building with -s FORCE_FILESYSTEM=1)');}
}/** @param {boolean|number=} implicit */
function exit(status, implicit) {EXITSTATUS = status;checkUnflushedContent();// if exit() was called explicitly, warn the user if the runtime isn't actually being shut downif (keepRuntimeAlive() && !implicit) {var msg = 'program exited (with status: ' + status + '), but EXIT_RUNTIME is not set, so halting execution but not exiting the runtime or preventing further async execution (build with EXIT_RUNTIME=1, if you want a true shutdown)';err(msg);}procExit(status);
}function procExit(code) {EXITSTATUS = code;if (!keepRuntimeAlive()) {if (Module['onExit']) Module['onExit'](code);ABORT = true;}quit_(code, new ExitStatus(code));
}if (Module['preInit']) {if (typeof Module['preInit'] == 'function') Module['preInit'] = [Module['preInit']];while (Module['preInit'].length > 0) {Module['preInit'].pop()();}
}
run();//demo运行延演示
setTimeout(()=>{console.log(Moduleall("show","string",["string"],["zhangsan"]))
},3000)
运行结果如下：
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C/C++语言转WebAssembly篇（一）
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