/** * Created by Nidin Vinayakan on 31/03/17. */ /// "use strict"; var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) { return new (P || (P = Promise))(function (resolve, reject) { function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } } function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } } function step(result) { result.done ? resolve(result.value) : new P(function (resolve) { resolve(result.value); }).then(fulfilled, rejected); } step((generator = generator.apply(thisArg, _arguments || [])).next()); }); }; Object.defineProperty(exports, "__esModule", { value: true }); const fs = require("fs"); function displayModExports(prompt, mod) { let exports = WebAssembly.Module.exports(mod); console.log(`${prompt} length=${exports.length}`); for (let i in exports) { let v = exports[i]; console.log(`${prompt}[${i}] name=${v.name} kind=${v.kind}`); } } function displayModImports(prompt, mod) { let imports = WebAssembly.Module.imports(mod); console.log(`${prompt} length=${imports.length}`); for (let i in imports) { let v = imports[i]; console.log(`${prompt}[${i}] name=${v.name} kind=${v.kind}`); } } function readFileAsync(filePath) { return new Promise((resolve, reject) => { fs.readFile(filePath, (err, data) => { if (err) { return reject(err); } else { return resolve(new Uint8Array(data)); } }); }); } // Table let table = new WebAssembly.Table({ element: "anyfunc", initial: 1, maximum: 10 }); console.log(`table.length=${table.length}`); console.log(`table.get(0)=${table.get(0)}`); //table.set(0, function () { //}); table.grow(1); // Memory let memory = new WebAssembly.Memory({ initial: 2, maximum: 8 }); console.log(`memory.grow(6)=${memory.grow(6)}`); let u8 = new Uint8Array(memory.buffer); u8[0] = 1; u8[1] = 2; console.log(`u8[0]=${u8[0]}`); console.log(`u8[1]=${u8[1]}`); let data = fs.readFileSync('./test/addTwo.wasm'); let wasmDataU8 = new Uint8Array(data); console.log(`data.buffer.byteLength=${data.buffer.byteLength}`); console.log(`wasmDataU8.length=${wasmDataU8.length}`); console.log(`wasmDataU8[0]=${wasmDataU8[0].toString(16)}`); console.log(`wasmDataU8[1]=${wasmDataU8[1].toString(16)}`); console.log(`wasmDataU8[2]=${wasmDataU8[2].toString(16)}`); console.log(`wasmDataU8[3]=${wasmDataU8[3].toString(16)}`); console.log(`wasmDataU8[4]=${wasmDataU8[4].toString(16)}`); console.log(`wasmDataU8[5]=${wasmDataU8[5].toString(16)}`); console.log(`wasmDataU8[6]=${wasmDataU8[6].toString(16)}`); console.log(`wasmDataU8[7]=${wasmDataU8[7].toString(16)}`); // Validate let valid = WebAssembly.validate(wasmDataU8); console.log("wasmDataU8 is " + (valid ? "" : "not ") + "a valid wasm wasmModule"); // Module let wasmModule = new WebAssembly.Module(wasmDataU8); console.log(`wasmModule=${wasmModule}`); // CustomSections let nameSections = WebAssembly.Module.customSections(wasmModule, "name"); console.log(`Module contains ${nameSections.length} name sections`); if (nameSections.length != 0) { console.log("Module contains a name section"); console.log(nameSections[0]); } // Display Exports displayModExports('wasmModule.exports', wasmModule); // Display Imports displayModImports('wasmModule.imports', wasmModule); // Instance let instance = new WebAssembly.Instance(wasmModule); console.log(`instance=${instance}`); console.log(`instance.exports=${instance.exports}`); //displayExports('instance.exports', instance.exports); console.log(`addTwo1(1,2)=${instance.exports.addTwo1(1, 2)}`); // Instantiate // Primary overload — taking wasm binary code WebAssembly.instantiate(wasmDataU8).then((result) => { console.log(`Primary overload mod=${result.module}`); console.log(`Primary overload inst=${result.instance}`); console.log(`Primary exec instance.exports..addTwo1(-1,1)=${result.instance.exports.addTwo1(-1, 1)}`); }); // Instantiate // Secondary overload — taking a Module object WebAssembly.instantiate(wasmModule).then((instance) => { console.log(`Secondary overload instance=${instance}`); console.log(`Secondary exec instance.exports..addTwo1(0,-1)=${instance.exports.addTwo1(0, -1)}`); }); function instantiateFile(filePath) { return __awaiter(this, void 0, void 0, function* () { console.log("instantiateFile:+"); // Read the file console.log("instantiateFile: readFile:"); let data = yield readFileAsync(filePath); console.log("instantiateFile: file read:"); console.log(`data.length=${data.length}`); console.log(`data[0]=${data[0].toString(16)}`); console.log(`data[1]=${data[1].toString(16)}`); console.log(`data[2]=${data[2].toString(16)}`); console.log(`data[3]=${data[3].toString(16)}`); console.log(`data[4]=${data[4].toString(16)}`); console.log(`data[5]=${data[5].toString(16)}`); console.log(`data[6]=${data[6].toString(16)}`); console.log(`data[7]=${data[7].toString(16)}`); // Compile console.log("instantiateFile compile:"); let mod = yield WebAssembly.compile(data); console.log("instantiateFile compiled:"); // Instantiate: console.log("instantiateFile instantiate:"); let instance = yield WebAssembly.instantiate(mod); console.log("instantiateFile instantiated:"); console.log("instantiateFile:-"); return instance; }); } // Use instantiateFile console.log("call instantiateFile"); instantiateFile("./test/addTwo.wasm").then(inst => { console.log(`done instantiateFile inst=${inst}`); console.log(`exec inst.exports..addTwo1(0,0)=${inst.exports.addTwo1(0, 0)}`); }); //# sourceMappingURL=wasm.js.map