chore(postcss): :where to :is when uni-app x

Author: sonofmagic

packages/postcss/src/selectorParser.ts

@@ -82,6 +82,9 @@ function createRuleTransform(rule: Rule, options: IStyleHandlerOptions) {
           selector.value = composeIsPseudo(cssSelectorReplacement.root)
         }
         else if (selector.value === ':where') {
+          if (uniAppX) {
+            selector.value = ':is'
+          }
           // :where(.space-y-1 > :not(:last-child))
           // https://tailwindcss.com/docs/upgrade-guide#space-between-selector
           // only for tailwindcss@4

packages/postcss/test/__snapshots__/darkMode.test.ts.snap

@@ -35,11 +35,7 @@ exports[`darkMode > darkMode: 'selector', 1`] = `
 `;
 
 exports[`darkMode > darkMode: 'selector', uni-app x 1`] = `
-".darkcbg-black:where(.dark,.dark) {
-    --tw-bg-opacity: 1;
-    background-color: rgba(0, 0, 0, var(--tw-bg-opacity, 1)) ;
-}
-.darkcbg-black:where(.dark,.dark) {
+".darkcbg-black.dark,.dark .darkcbg-black,.dark .darkcbg-black {
     --tw-bg-opacity: 1;
     background-color: rgba(0, 0, 0, var(--tw-bg-opacity, 1)) ;
 }"
@@ -57,7 +53,7 @@ exports[`darkMode > darkMode: ['selector', '[data-mode="dark"]'], 1`] = `
 `;
 
 exports[`darkMode > darkMode: ['selector', '[data-mode="dark"]'], uni-app x 1`] = `
-".darkcbg-black {
+".darkcbg-black,.darkcbg-black {
     --tw-bg-opacity: 1;
     background-color: rgba(0, 0, 0, var(--tw-bg-opacity, 1)) ;
 }"