Fix inferring data type of border-[…] with multiple values
#17248
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In order for a `line-width` to be valid, every part should be one of: 1. A keyword: `thin`, `medium`, `thick` 2. A length: `12px` 3. A number: `0`
| return segment(value, ' ').every( | ||
| (value) => | ||
| isLength(value) || | ||
| isNumber(value) || |
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I think I know why isNumber is here… it's for 0 support right? If so we should really adjust isLength to account for unit-less zero instead I think.
Can do that in a separate PR tho.
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Yeah wasn't 100% sure where to put the unit-less numbers. Only annoying thing is that 0 can be put in spots where both a length or percentage is valid, so if we have a utility that differentiate between length and percentage then we run into an issue (and an explicit data type is necessary). Might not be a big deal 🤔
Also border-width: 1; is interpreted as border-width: 1px; but 0 stays as 0 (or at least by Lightning CSS). So we almost have to resolve the value based on the property we are setting: https://lightningcss.dev/playground/index.html#%7B%22minify%22%3Afalse%2C%22customMedia%22%3Atrue%2C%22cssModules%22%3Afalse%2C%22analyzeDependencies%22%3Afalse%2C%22targets%22%3A%7B%22chrome%22%3A6225920%7D%2C%22include%22%3A0%2C%22exclude%22%3A0%2C%22source%22%3A%22.foo%20%7B%5Cn%20%20border-width%3A%200%201%3B%20%2F*%200%201px%20*%2F%5Cn%20%20font-size%3A%201%3B%20%2F*%201px%20*%2F%5Cn%20%20--value%3A%201%3B%20%2F*%201%20*%2F%5Cn%7D%22%2C%22visitorEnabled%22%3Afalse%2C%22visitor%22%3A%22%7B%5Cn%20%20Color(color)%20%7B%5Cn%20%20%20%20if%20(color.type%20%3D%3D%3D%20'rgb')%20%7B%5Cn%20%20%20%20%20%20color.g%20%3D%200%3B%5Cn%20%20%20%20%20%20return%20color%3B%5Cn%20%20%20%20%7D%5Cn%20%20%7D%5Cn%7D%22%2C%22unusedSymbols%22%3A%5B%5D%2C%22version%22%3A%22local%22%7D
The inferring of data types is also not 100% correct conceptually because in this case it should be <line-width>{1,4} and now we passthrough any number of arguments.
This PR fixes an issue where arbitrary values such as
border-[12px_4px]were incorrectly producingborder-colorinstead ofborder-widthvalues.To solve it, I extended the
<line-width>check to make sure that every part of the value is a valid<line-width>.In order for a
line-widthto be valid, every part should be one of:thin,medium,thick12px0Fixes: #17221
Test plan