Discard candidates with an empty data type #19172
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RobinMalfait
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Oct 21, 2025
thecrypticace
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Oct 22, 2025
Fixes #1479 This is the result of a parsing issue inside core which causes us to make incorrect assumptions. See tailwindlabs/tailwindcss#19172 The tl;dr of how this bug happened: 1. We see `hover:bg-[` and each "part" gets tested 2. To test each part we compile `{part}:[color:red]` 3. We test `hover` and it passes — awesome ✅ 4. We test `bg-[` and it passes — bad ❌ 5. This is because it got turned into `bg-[:[color:red]` and was incorrectly parsed as a valid utility. This is fixed in Tailwind CSS v4.1.16 This meant that the start position was *after* the end position for a completion's edit range because it assumed there was a separator (`:`) after the `bg-[` part when there is not. We'll work around this for old versions. As mentioned new Tailwind CSS versions will handle this appropriately.
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Fixes tailwindlabs/tailwindcss-intellisense#1479
Maybe should close tailwindlabs/tailwindcss-intellisense#1480 — perhaps we can find a workaround there for older versions?
We're building up a class name in code to validate if something is a valid variant:
{variant}:[color:red]if
{variant}got replaced withbg-[then we'd producebg-[:[color:red]and this parsed as a valid candidate:The value isn't valid but the syntax for arbitrary values is pretty lax in core. Oxide already won't pick something like this up though so no problem there. Only a problem for something like IntelliSense or clients using the compile() API directly.