Source map is not generated for javascript/typescript when using unplugin-vue-i18n/vite

[norux]

Reporting a bug?

When build code with unplugin-vue-18n/vite, source map for js/ts is not generated.

without plugin	with plugin
link	link

I found some code not implemented yet. I think it have to be removed.

bundle-tools/packages/unplugin-vue-i18n/src/index.ts

Lines 453 to 460 in 557086c

	} else {
	// TODO: support virtual import identifier
	// for virtual import identifier (@intlify/unplugin-vue-i18n/messages)
	return {
	code,
	map: { mappings: '', version: '3', sources: [] }
	}
	}

Expected behavior

Generating source map for javascript/typescript

Reproduction

https://github.com/norux/intlify-bundle-tools-reproduce

Issue Package

unplugin-vue-i18n

System Info

System:
    OS: macOS 12.6
    CPU: (10) arm64 Apple M1 Pro
    Memory: 145.41 MB / 32.00 GB
    Shell: 5.8.1 - /bin/zsh
  Binaries:
    Node: 16.15.0 - ~/.nvm/versions/node/v16.15.0/bin/node
    Yarn: 1.22.18 - ~/.nvm/versions/node/v16.15.0/bin/yarn
    npm: 8.5.5 - ~/.nvm/versions/node/v16.15.0/bin/npm
  Browsers:
    Chrome: 107.0.5304.110
    Safari: 16.0

Screenshot

No response

Additional context

No response

Validations

• Read the Contributing Guidelines.
• Read the README
• Check that there isn't already an issue that reports the same bug to avoid creating a duplicate.
• Check that this is a concrete bug. For Q&A open a GitHub Discussion.