Function handler

packages/@tailwindcss-vite/src/index.ts:228–249

(src, id)

          },
        },
        async handler(src, id) {
          if (!isPotentialCssRootFile(id)) return

          using I = new Instrumentation()
          DEBUG && I.start(class="st">'[@tailwindcss/vite] Generate CSS (serve)')

          let roots = rootsByEnv.get(this.environment?.name ?? class="st">'default')
          let root = roots.get(id)
          if (!root) {
            root ??= createRoot(this.environment ?? null, id)
            roots.set(id, root)
          }

          let result = await root.generate(src, (file) => this.addWatchFile(file), I)
          if (!result) {
            roots.delete(id)
            return
          }

          DEBUG && I.end(class="st">'[@tailwindcss/vite] Generate CSS (serve)')
          return result
        },
      },

      hotUpdate({ file, modules, timestamp, server }) {