Related plugins

• plugin-vue

• plugin-vue-jsx

Describe the bug

The Bun implementation of Function.toString differs from node, as described in oven-sh/bun#9543.
This causes the serialization of ssrRegisterHelper to output a incorrect string.

I'm suggesting this change:

const ssrRegisterHelperCode =
  `import { useSSRContext } from "vue"\n` +
  `export const ssrRegisterHelper = ${ssrRegisterHelper.toString()}`;

Adding a const ssrRegisterHelper = in front of the function to make sure it gets the name for export.

Reproduction

https://github.com/luckydye/bun-ssr-vue-jsx

Steps to reproduce

• bun install
• bun --bun run dev

System Info

System:
    OS: macOS 14.2.1
    CPU: (10) arm64 Apple M1 Pro
    Memory: 163.16 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 21.6.1 - ~/.local/share/mise/installs/node/latest/bin/node
    npm: 10.2.4 - ~/.local/share/mise/installs/node/latest/bin/npm
    bun: 1.0.33 - ~/.local/share/mise/installs/bun/latest/bin/bun
  npmPackages:
    @vitejs/plugin-vue: ^4.5.2 => 4.6.2
    @vitejs/plugin-vue-jsx: ^3.1.0 => 3.1.0
    vite: ^5.0.10 => 5.2.2

Used Package Manager

bun

Logs

2:46:16 PM [vite] Error when evaluating SSR module /src/components/HelloWorld.jsx: failed to import "/__vue-jsx-ssr-register-helper"
|- Error: Expected ident
    at getRollupError (/Users/tihav/source/nuxt-bun/bun-ssr-vue-jsx/node_modules/rollup/dist/es/shared/parseAst.js:377:15)
    at convertProgram (/Users/tihav/source/nuxt-bun/bun-ssr-vue-jsx/node_modules/rollup/dist/es/shared/parseAst.js:1042:19)
    at processTicksAndRejections (:13:78)

Validations

• Follow our Code of Conduct
• 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.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion or join our Discord Chat Server.
• The provided reproduction is a minimal reproducible example of the bug.