add postLoaders

package.json

@@ -145,6 +145,7 @@
     "gruntify-eslint": "^1.0.0",
     "html-entities": "^1.1.1",
     "husky": "^0.8.1",
+    "istanbul-instrumenter-loader": "^0.1.3",
     "karma": "^0.13.3",
     "karma-chrome-launcher": "^0.2.0",
     "karma-firefox-launcher": "^0.1.6",

src/optimize/BaseOptimizer.js

@@ -125,6 +125,7 @@ class BaseOptimizer {
             }, babelOptions)
           }
         ].concat(this.env.loaders),
+        postLoaders: this.env.postLoaders || [],
         noParse: this.env.noParse,
       },
 

src/ui/UiBundlerEnv.js

@@ -54,6 +54,7 @@ module.exports = class UiBundlerEnv {
 
     // webpack loaders map loader configuration to regexps
     this.loaders = [];
+    this.postLoaders = [];
   }
 
   consumePlugin(plugin) {
@@ -74,6 +75,11 @@ module.exports = class UiBundlerEnv {
           for (let loader of arr(spec)) this.addLoader(loader);
         };
 
+      case 'postLoaders':
+        return (plugin, spec) => {
+          for (let loader of arr(spec)) this.addPostLoader(loader);
+        };
+
       case 'noParse':
         return (plugin, spec) => {
           for (let re of arr(spec)) this.addNoParse(re);
@@ -94,6 +100,10 @@ module.exports = class UiBundlerEnv {
     this.loaders.push(loader);
   }
 
+  addPostLoader(loader) {
+    this.postLoaders.push(loader);
+  }
+
   addNoParse(regExp) {
     this.noParse.push(regExp);
   }