Reflect.getOwnMetadata return undefined

[leezhian]

Describe the bug

I know that esbuild is used in the development environment. It is unable to obtain metadata. But why does it still return undefined after packaging? The build uses rollup and should be able to retrieve metadata.

Reproduction

https://stackblitz.com/edit/vitejs-vite-houu9v?file=vite.config.ts,src%2Fmain.ts,tsconfig.json,src%2Findex.html&terminal=dev

Steps to reproduce

npm run build, Then replace './main.ts' with '../dist/player.js' in src/index.html. Finally, run on the local computer.

System Info

System:
    OS: macOS 14.2.1
    CPU: (10) arm64 Apple M1 Pro
    Memory: 1.99 GB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.9.0 - ~/.nvm/versions/node/v20.9.0/bin/node
    Yarn: 1.22.19 - ~/.nvm/versions/node/v20.9.0/bin/yarn
    npm: 10.1.0 - ~/.nvm/versions/node/v20.9.0/bin/npm
    pnpm: 8.10.0 - ~/.nvm/versions/node/v20.9.0/bin/pnpm
    bun: 1.0.27 - ~/.bun/bin/bun
  Browsers:
    Chrome: 121.0.6167.184
    Safari: 17.2.1
  npmPackages:
    vite: ^5.1.4 => 5.1.4

Used Package Manager

pnpm

Logs

No response

Validations

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• Read the Contributing Guidelines.
• Read the docs.
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Make sure this is a Vite issue and not a framework-specific issue. For example, if it's a Vue SFC related bug, it should likely be reported to vuejs/core instead.
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• The provided reproduction is a minimal reproducible example of the bug.

[sapphi-red]

Vite uses esbuild to compiles TypeScript into JavaScript in both dev and build. Compilers that supports TypeScript other than tsc itself does not support emitDecoratorMetadata.