fix cannot apply css modules to vue instance (vuejs#609)

kazupon · yyx990803 · commit cfcfc741ac59 · 2017-01-30T21:49:10.000-05:00
diff --git a/lib/loader.js b/lib/loader.js
@@ -338,8 +338,15 @@ module.exports = function (content) {
         '    hotAPI.createRecord("' + moduleId + '", Component.options)\n' +
         '  } else {\n' +
         // update
+        '    if (module.hot.data.cssModules && JSON.stringify(module.hot.data.cssModules) !== JSON.stringify(cssModules)) {\n' +
+        '      delete Component.options._Ctor\n' +
+        '    }\n' +
         '    hotAPI.reload("' + moduleId + '", Component.options)\n' +
         '  }\n' +
+        // save cssModules
+        '  module.hot.dispose(function (data) {\n' +
+        '    data.cssModules = cssModules\n' +
+        '  })\n' +
         '})()}\n'
     }
     // final export
