Use candidatesToAst when supported

Author: thecrypticace

packages/tailwindcss-language-server/src/util/v4/design-system.ts

@@ -226,6 +226,10 @@ export async function loadDesignSystem(
     dependencies: () => dependencies,
 
     compile(classes: string[]): AstNode[][] {
+      if (design.candidatesToAst) {
+        return design.candidatesToAst(classes).map((ast) => ast.map(cloneAstNode))
+      }
+
       // 1. Compile any uncached classes
       let cache = design.storage[COMPILE_CACHE] as Record<string, AstNode[]>
       let uncached = classes.filter((name) => cache[name] === undefined)

packages/tailwindcss-language-service/src/util/v4/design-system.ts

@@ -1,6 +1,6 @@
 import postcss from 'postcss'
 import type { NamedVariant } from './candidate'
-import type { Rule } from '../../css'
+import type { AstNode, Rule } from '../../css'
 
 export interface Theme {
   // Prefix didn't exist for earlier Tailwind versions
@@ -54,6 +54,9 @@ export interface DesignSystem {
   // Added in v4.1.16
   // We can patch it into any design system if it doesn't exist though
   storage?: Record<symbol, any>
+
+  // Added in v4.1.18
+  candidatesToAst?(classes: string[]): AstNode[][]
 }
 
 export interface DesignSystem {