Describe the bug
Type cast in useMemo () => ({} as Type) cause vite:esbuild transform error.
code:
const v = useMemo(
() =>
({
name: 'random',
age: count,
} as RandomType), // type cast here will cause error
[count]
);
// if not cast to `RandomType` in `()` return , its ok
const v2 = useMemo<RandomType>(
() => ({
name: 'random',
age: count,
}),
[count]
);error msg:
10:34:53 [vite] hmr update /src/App.tsx
10:34:53 [vite] Internal server error: Transform failed with 1 error:
/home/projects/vitejs-vite-l8ggg5/src/App.tsx:17:9: ERROR: Expected ";" but found ":"
Plugin: vite:esbuild
File: /home/projects/vitejs-vite-l8ggg5/src/App.tsx:17:11
Expected ";" but found ":"
15 | {
16 | name: 'random',
17 | age: count
| ^
18 | } as RandomType, // type cast here will cause error
19 | [count]
at failureErrorWithLog (/home/projects/vitejs-vite-l8ggg5/node_modules/esbuild/lib/main.js:1462:15)
at eval (/home/projects/vitejs-vite-l8ggg5/node_modules/esbuild/lib/main.js:745:50)
at responseCallbacks.<computed> (/home/projects/vitejs-vite-l8ggg5/node_modules/esbuild/lib/main.js:612:9)
at handleIncomingPacket (/home/projects/vitejs-vite-l8ggg5/node_modules/esbuild/lib/main.js:667:12)
at Socket.readFromStdout (/home/projects/vitejs-vite-l8ggg5/node_modules/esbuild/lib/main.js:590:7)
at Socket.emit (node:events:30:10899)
at addChunk (node:internal/streams/readable:225:3685)
at readableAddChunk (node:internal/streams/readable:225:3393)
at Readable.push (node:internal/streams/readable:225:4971)
at _0x8d40b9.onStreamRead (node:internal/stream_base_commons:211:2596)
similar code like below doesn't cause error in vanilla vite, but errors with this plugin
const fakeMemo = (fn: any, dep: []) => fn(dep);
const v3 = fakeMemo(
() =>
({
name: 'random',
age: count,
} as RandomType),
[]
);Reproduction
https://stackblitz.com/edit/vitejs-vite-l8ggg5?file=src%2FApp.tsx
Steps to reproduce
Run npm install then npm run dev
System Info
System:
OS: Linux 5.0 undefined
CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz
Memory: 0 Bytes / 0 Bytes
Shell: 1.0 - /bin/jsh
Binaries:
Node: 18.20.3 - /usr/local/bin/node
Yarn: 1.22.19 - /usr/local/bin/yarn
npm: 10.2.3 - /usr/local/bin/npm
pnpm: 8.15.6 - /usr/local/bin/pnpm
npmPackages:
@vitejs/plugin-react: ^4.3.1 => 4.3.1
vite: ^5.3.2 => 5.3.3Used Package Manager
npm
Logs
No response
Validations
Reactions are currently unavailable
Describe the bug
Type cast in useMemo () => ({} as Type) cause vite:esbuild transform error.
code:
error msg:
10:34:53 [vite] hmr update /src/App.tsx 10:34:53 [vite] Internal server error: Transform failed with 1 error: /home/projects/vitejs-vite-l8ggg5/src/App.tsx:17:9: ERROR: Expected ";" but found ":" Plugin: vite:esbuild File: /home/projects/vitejs-vite-l8ggg5/src/App.tsx:17:11 Expected ";" but found ":" 15 | { 16 | name: 'random', 17 | age: count | ^ 18 | } as RandomType, // type cast here will cause error 19 | [count] at failureErrorWithLog (/home/projects/vitejs-vite-l8ggg5/node_modules/esbuild/lib/main.js:1462:15) at eval (/home/projects/vitejs-vite-l8ggg5/node_modules/esbuild/lib/main.js:745:50) at responseCallbacks.<computed> (/home/projects/vitejs-vite-l8ggg5/node_modules/esbuild/lib/main.js:612:9) at handleIncomingPacket (/home/projects/vitejs-vite-l8ggg5/node_modules/esbuild/lib/main.js:667:12) at Socket.readFromStdout (/home/projects/vitejs-vite-l8ggg5/node_modules/esbuild/lib/main.js:590:7) at Socket.emit (node:events:30:10899) at addChunk (node:internal/streams/readable:225:3685) at readableAddChunk (node:internal/streams/readable:225:3393) at Readable.push (node:internal/streams/readable:225:4971) at _0x8d40b9.onStreamRead (node:internal/stream_base_commons:211:2596)similar code like below doesn't cause error in vanilla vite, but errors with this plugin
Reproduction
https://stackblitz.com/edit/vitejs-vite-l8ggg5?file=src%2FApp.tsx
Steps to reproduce
Run npm install then npm run dev
System Info
System: OS: Linux 5.0 undefined CPU: (8) x64 Intel(R) Core(TM) i9-9880H CPU @ 2.30GHz Memory: 0 Bytes / 0 Bytes Shell: 1.0 - /bin/jsh Binaries: Node: 18.20.3 - /usr/local/bin/node Yarn: 1.22.19 - /usr/local/bin/yarn npm: 10.2.3 - /usr/local/bin/npm pnpm: 8.15.6 - /usr/local/bin/pnpm npmPackages: @vitejs/plugin-react: ^4.3.1 => 4.3.1 vite: ^5.3.2 => 5.3.3Used Package Manager
npm
Logs
No response
Validations