feat: add useCSSModule api

src/apis/useCssModule.ts

@@ -0,0 +1,22 @@
+import { getCurrentInstance } from '../runtimeContext'
+import { warn } from '../utils'
+
+const EMPTY_OBJ: { readonly [key: string]: string } = __DEV__
+  ? Object.freeze({})
+  : {}
+
+export const useCSSModule = (name = '$style'): Record<string, string> => {
+  const instance = getCurrentInstance()
+  if (!instance) {
+    __DEV__ && warn(`useCSSModule must be called inside setup()`)
+    return EMPTY_OBJ
+  }
+
+  const mod = instance[name]
+  if (!mod) {
+    __DEV__ && warn(`Current instance does not have CSS module named "${name}".`)
+    return EMPTY_OBJ
+  }
+
+  return mod
+}

src/index.ts

@@ -31,6 +31,7 @@ export * from './apis/lifecycle'
 export * from './apis/watch'
 export * from './apis/computed'
 export * from './apis/inject'
+export * from './apis/useCssModule'
 
 // auto install when using CDN
 if (typeof window !== 'undefined' && window.Vue) {