Embedded langs in <Code />

[jfrancos]

Changes

This PR addresses #15271 adding an optional embeddedLangs prop to <Code /> :

• Previously, <Code /> creates a shiki highlighter with langs: [lang].
• This usually works great. Embedded langs are already included in canonical situations like ts-in-svelte without a need for additional langs.
• But in some less canonical cases e.g. tsx-in-vue, more control is needed over the langs param for shiki to correctly highlight
• Now shiki highlighter is created with langs: [lang, ...embeddedLangs]

Testing

• Create fixture using TSX in Vue
• Without langs support, setting lang to "vue" results in the main line of TSX being one long <span />.
• With langs support, each TSX token is its own <span />
• Test for a <span /> containing the lone string "const"

Docs

Docs will need an update here (can I do this for en? Would I submit an issue there first or just a PR?)
/cc @withastro/maintainers-docs

[changeset-bot]

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Latest commit: c05d9c9

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[github-actions]

⚠️ Package Trust Level Decreased

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Decreased trust levels may indicate a higher risk of supply chain attacks. Please review these changes carefully.

📦 Package	🔒 Before	🔓 After
eslint-plugin-regexp	trusted-with-provenance	none
@cloudflare/kv-asset-handler	trusted-with-provenance	none
@cloudflare/unenv-preset	trusted-with-provenance	none
workerd	trusted-with-provenance	none
@sveltejs/vite-plugin-svelte-inspector	trusted-with-provenance	provenance
@sveltejs/vite-plugin-svelte	trusted-with-provenance	provenance
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miniflare	trusted-with-provenance	none
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[ematipico]

Thank you @jfrancos

Contributors are responsible of the docs, so yes you send a PR to the docs repository. Doing the english translation is more than enough

[jfrancos]

Thanks @ematipico. I've added more detail to the changeset.

[jfrancos]

@astrojs/cloudflare:test: code: 'ECONNREFUSED',
@astrojs/cloudflare:test: MiniflareCoreError [ERR_DISPOSED]: Cannot use disposed instance

There are some CI issues, seemingly unrelated to this PR.
CI passes after rebase from next

[matthewp]

Sorry about the close.

[jfrancos]

Sorry about the close.

No worries @matthewp

@florian-lefebvre thanks for the corrections