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| 1 | +<!DOCTYPE html> |
| 2 | +<html> |
| 3 | + <head> |
| 4 | + <meta charset="utf-8" /> |
| 5 | + <title>AssemblyScript SDK Example</title> |
| 6 | + </head> |
| 7 | + <body> |
| 8 | + <script src="/dist/as-bind.iife.js"></script> |
| 9 | + <script src="./require.js"></script> |
| 10 | + <script> |
| 11 | + const SOURCE_CODE = ` |
| 12 | + export function test(): string { |
| 13 | + return "ohai"; |
| 14 | + }`; |
| 15 | + |
| 16 | + // A symbol allows us to store something as a global without risking |
| 17 | + // name clashes or pollution. |
| 18 | + const asbindTransform = Symbol(); |
| 19 | + |
| 20 | + // Shimming the require() call to *synchronously* |
| 21 | + // return our transform module that we expect to be on a global. |
| 22 | + // Any calls unrelated to the transform |
| 23 | + // are implicitly passed through to RequireJS. |
| 24 | + self.require = new Proxy(self.require, { |
| 25 | + apply(target, thisArg, [path, ...args]) { |
| 26 | + if (path !== "/dist/transform.js") { |
| 27 | + return target.call(target, path, ...args); |
| 28 | + } |
| 29 | + return self[asbindTransform]; |
| 30 | + }, |
| 31 | + get(target, propName) { |
| 32 | + if (propName !== "resolve") { |
| 33 | + return target[propName]; |
| 34 | + } |
| 35 | + return (path, ...args) => { |
| 36 | + return path; |
| 37 | + }; |
| 38 | + } |
| 39 | + }); |
| 40 | + |
| 41 | + require(["/node_modules/assemblyscript/dist/sdk.js"], ({ |
| 42 | + asc, |
| 43 | + assemblyscript |
| 44 | + }) => { |
| 45 | + // Register the `assemblyscript` property as a module of its own |
| 46 | + // as is expected by most transform modules. |
| 47 | + define("assemblyscript", assemblyscript); |
| 48 | + // Load our ASBind transform... |
| 49 | + require(["/dist/transform.amd.js"], transform => { |
| 50 | + // ... and put it on a global |
| 51 | + self[asbindTransform] = transform; |
| 52 | + asc.ready.then(() => { |
| 53 | + const stdout = asc.createMemoryStream(); |
| 54 | + const stderr = asc.createMemoryStream(); |
| 55 | + asc.main( |
| 56 | + // prettier-ignore |
| 57 | + [ |
| 58 | + "module.ts", |
| 59 | + "-O3", |
| 60 | + "--exportRuntime", |
| 61 | + "--runtime", "stub", |
| 62 | + "--binaryFile", "module.wasm", |
| 63 | + "--transform", "/dist/transform.js", |
| 64 | + ], |
| 65 | + { |
| 66 | + stdout, |
| 67 | + stderr, |
| 68 | + readFile(name, baseDir) { |
| 69 | + return name === "module.ts" ? SOURCE_CODE : null; |
| 70 | + }, |
| 71 | + async writeFile(name, data, baseDir) { |
| 72 | + if (name.endsWith(".wasm")) { |
| 73 | + const instance = await AsBindIIFE.instantiate(data); |
| 74 | + console.log("Output:", instance.exports.test()); |
| 75 | + } |
| 76 | + }, |
| 77 | + listFiles(dirname, baseDir) { |
| 78 | + return []; |
| 79 | + } |
| 80 | + }, |
| 81 | + err => { |
| 82 | + console.log(`>>> STDOUT >>>\n${stdout.toString()}`); |
| 83 | + console.log(`>>> STDERR >>>\n${stderr.toString()}`); |
| 84 | + if (err) { |
| 85 | + console.log(">>> THROWN >>>"); |
| 86 | + console.log(err); |
| 87 | + } |
| 88 | + } |
| 89 | + ); |
| 90 | + }); |
| 91 | + }); |
| 92 | + }); |
| 93 | + </script> |
| 94 | + <p>See the browser console!</p> |
| 95 | + </body> |
| 96 | +</html> |
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