Added support for Web worker chunk template plugin

CHANGELOG.md

@@ -17,6 +17,9 @@ _Note: Gaps between patch versions are faulty, broken or test releases._
 
 <!-- Add changelog entries for new changes under this section -->
 
+ * **New Feature**
+   * Support [WebWorkerChunkTemplatePlugin](https://github.com/webpack/webpack/blob/c9d4ff7b054fc581c96ce0e53432d44f9dd8ca72/lib/webworker/WebWorkerChunkTemplatePlugin.js) ([#353](https://github.com/webpack-contrib/webpack-bundle-analyzer/pull/353) by [@Gongreg](https://github.com/Gongreg))
+
  * **Bug Fix**
    * Support any custom `globalObject` option in Webpack Config. ([#352](https://github.com/webpack-contrib/webpack-bundle-analyzer/pull/352) by [@Gongreg](https://github.com/Gongreg))
 

src/parseUtils.js

@@ -79,6 +79,15 @@ function parseBundle(bundlePath) {
           return;
         }
 
+        // Webpack v4 WebWorkerChunkTemplatePlugin
+        // globalObject.chunkCallbackName([<chunks>],<modules>, ...);
+        // Both globalObject and chunkCallbackName can be changed through the config, so we can't check them.
+        if (isAsyncWebWorkerChunkExpression(node)) {
+          state.locations = getModulesLocations(args[1]);
+          return;
+        }
+
+
         // Walking into arguments because some of plugins (e.g. `DedupePlugin`) or some Webpack
         // features (e.g. `umd` library output) can wrap modules list into additional IIFE.
         _.each(args, arg => c(arg, state));
@@ -212,6 +221,18 @@ function mayBeAsyncChunkArguments(args) {
   );
 }
 
+function isAsyncWebWorkerChunkExpression(node) {
+  const {callee, type, arguments: args} = node;
+
+  return (
+    type === 'CallExpression' &&
+    callee.type === 'MemberExpression' &&
+    args.length === 2 &&
+    isChunkIds(args[0]) &&
+    isModulesList(args[1])
+  );
+}
+
 function getModulesLocations(node) {
   if (node.type === 'ObjectExpression') {
     // Modules hash

test/bundles/validWebpack4AsyncChunkWithWebWorkerChunkTemplatePlugin.js

@@ -0,0 +1 @@
+self.chunkCallbackName([27],{1:function(e,n,t){console.log("Chuck Norris")}});

test/bundles/validWebpack4AsyncChunkWithWebWorkerChunkTemplatePlugin.modules.json

@@ -0,0 +1,5 @@
+{
+  "modules": {
+    "1": "function(e,n,t){console.log(\"Chuck Norris\")}"
+  }
+}