* improve collapsing of duplicate properties
In theory, we don't have to do anything because the browser is smart
enough to figure everything out. However, leaving in duplicate
properties is not that ideal for file size.
Our previous method was pretty simple: if you see a declaration you
already saw in this rule, delete the previous one and keep the current
one.
This works pretty well, but this gets rid of **all** the declarations
with the same property. This is not great for overrides for older
browsers.
In a perfect world, we can handle this based on your target browser but
this is a lot of unnecessary complexity and will slow things down
performance wise.
Alternative, we improved the solution by being a bit smarter:
1. Delete duplicate declarations that have the same property and value
(this will get rid of **exact** duplications).
2. Delete declarations with the same property and the same **unit**.
This means that we will reduce this:
```css
.example {
height: 50%;
height: 100px;
height: 20vh;
height: 30%;
height: 50px;
height: 30vh;
transform: var(--value);
transform: var(--value);
}
```
To:
```diff-css
.example {
- height: 50%; /* Another height exists later with a `%` unit */
- height: 100px; /* Another height exists later with a `px` unit */
- height: 20vh; /* Another height exists later with a `vh` unit */
height: 30%;
height: 50px;
height: 30vh;
- transform: var(--value); /* Value is too complex, but is **exactly** the same as the one below */
transform: var(--value);
}
```
This will reduce the values that we are 100% sure that can be safely
removed. This will still result in some overrides but the browser can
handle those for you.
Fixes: #6844
* update changelog
* ensure apply of rule inside atrule works
If that atrule happens to contain another rule that is technically
unrelated.
Co-authored-by: Jordan Pittman <jordan@cryptica.me>
* update changelog
Co-authored-by: Jordan Pittman <jordan@cryptica.me>
* only generate variants for non-user layers
If you have the following css:
```css
@tailwind utilities;
.foo {
color: red;
}
```
And you HTML looks like this:
```html
<div class="hover:foo"></div>
```
Then the output should _not_ generate a `.hover\:foo {}` class.
* ensure that you can apply user csss (without variants)
* update changelog
* add `collapseDuplicateDeclarations`
This will allow us to remove duplicate declarations. This occurs when
you are using `@apply` for example.
The reason I implemented it as a separate step, is because this doesn't
only happen for `@apply`, but it also happens if you do something like:
```js
addComponents({ '.btn-blue, .btm-red': { padding: '10px' } })
```
So instead of tracking down every place this is happening, it now
happens at the very end.
* use new plugin in processTailwindFeatures
* add/update tests by removing duplicate declarations
* update changelog
* Replace `culori` with simple color parser
* Use space-separated color syntax
* Update default color values to use space-separated syntax
* Update separator regex
* Fix tests
* add tests for the new `color` util
Also slightly modified the `color` util itself to take `transparent`
into account and also format every value as a string for consistency.
Co-authored-by: Robin Malfait <malfait.robin@gmail.com>
* support `@apply` for classes outside of a `@layer`
* Add failing test for respecting source order
* sort rules when using `@apply`
The `layer` was not taken into account yet when we resolved the rules
from the applyCache. This is because we set the `classCache` to the
`matches` inside of the `generateRules` function. You can think of them
as "raw" rules I guess. However, it is later in that function that we
apply the `layerOrder` to the `sort`.
This does mean that when you `@apply font-bold text-red-500` that the
rules inside the `.target {}` will be in order of the "normal" css as
well.
Co-authored-by: Adam Wathan <adam.wathan@gmail.com>
* move `./tests/jit` to `./tests`
* make tests consistent
Abstracted a `run` function and some syntax highlighting helpers for
`html`, `css` and `javascript`.
