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fix: usage of wasm in an appDir page file using the edge runtime #41689

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merged 5 commits into from Nov 3, 2022
Merged

fix: usage of wasm in an appDir page file using the edge runtime #41689

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7d66819
fix usage of wasm in an appDir page file using the edge runtime
Oct 23, 2022
638cfcb
Merge branch 'canary' into brk.fix/app-dir-edge-load-wasm
balazsorban44 Oct 25, 2022
ede03bc
Merge branch 'canary' into brk.fix/app-dir-edge-load-wasm
BRKalow Oct 26, 2022
6221673
updates test per review
Oct 26, 2022
63c70aa
Merge branch 'canary' into brk.fix/app-dir-edge-load-wasm
ijjk Nov 3, 2022
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9 changes: 8 additions & 1 deletion packages/next/build/utils.ts
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Expand Up @@ -52,6 +52,7 @@ import {
loadRequireHook,
overrideBuiltInReactPackages,
} from './webpack/require-hook'
import { AssetBinding } from './webpack/loaders/get-module-build-info'

loadRequireHook()
if (process.env.NEXT_PREBUNDLED_REACT) {
Expand Down Expand Up @@ -1259,7 +1260,13 @@ export async function isPageStatic({
const runtime = await getRuntimeContext({
paths: edgeInfo.files.map((file: string) => path.join(distDir, file)),
env: edgeInfo.env,
edgeFunctionEntry: edgeInfo,
edgeFunctionEntry: {
...edgeInfo,
wasm: (edgeInfo.wasm ?? []).map((binding: AssetBinding) => ({
...binding,
filePath: path.join(distDir, binding.filePath),
})),
},
Comment on lines +1263 to +1269
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good catch :clapping-inclusive:

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I wonder if we need to do the same for blob assets? (i.e. fetch(new URL("./file.png", import.meta.url)))

anyway that can be in a new PR :open_source_parrot:

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Good question 🤔 yeah I can take a look and add a test case as a follow-up!

name: edgeInfo.name,
useCache: true,
distDir,
Expand Down
Binary file added test/production/app-dir-edge-runtime-with-wasm/add.wasm
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63 changes: 63 additions & 0 deletions test/production/app-dir-edge-runtime-with-wasm/index.test.ts
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@@ -0,0 +1,63 @@
import path from 'path'
import { createNext, FileRef } from 'e2e-utils'
import { NextInstance } from 'test/lib/next-modes/base'
import { renderViaHTTP } from 'next-test-utils'

const files = {
'app/layout.jsx': `
export default function AppLayout({ children }) {
return (
<html>
<head>
<title>WASM Import</title>
</head>
<body>
{children}
</body>
</html>
)
}
`,
'app/page.jsx': `
import wasm from '../wasm/add.wasm?module'
const instance$ = WebAssembly.instantiate(wasm);

async function addOne(a) {
const { exports } = await instance$;
return exports.add_one(a);
}

export default async function Page() {
const two = await addOne(1)
return \`1 + 1 is: $\{two}\`
}

export const runtime = "experimental-edge"
`,
'wasm/add.wasm': new FileRef(path.join(__dirname, 'add.wasm')),
}

describe('app-dir edge runtime with wasm', () => {
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I'm not sure if it would be preferred to have all of the app-dir related tests in test/e2e/app-dir, let me know!

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I think it's good. We can always merge tests. Extracting is harder. 🙏

let next: NextInstance

beforeAll(async () => {
next = await createNext({
files,
dependencies: {
react: 'experimental',
'react-dom': 'experimental',
},
nextConfig: {
experimental: {
appDir: true,
},
},
})
})
afterAll(() => next.destroy())

it('should have built', async () => {
const html = await renderViaHTTP(next.url, '/')
expect(html).toContain('1 + 1 is: 2')
})
})