fix: handle errors from child compilations

Author: alexander-akait

src/loader.js

@@ -351,14 +351,6 @@ export function pitch(request) {
   }
 
   childCompiler.runAsChild((error, entries, compilation) => {
-    const assets = Object.create(null);
-    const assetsInfo = new Map();
-
-    for (const asset of compilation.getAssets()) {
-      assets[asset.name] = asset.source;
-      assetsInfo.set(asset.name, asset.info);
-    }
-
     if (error) {
       return callback(error);
     }
@@ -367,6 +359,14 @@ export function pitch(request) {
       return callback(compilation.errors[0]);
     }
 
+    const assets = Object.create(null);
+    const assetsInfo = new Map();
+
+    for (const asset of compilation.getAssets()) {
+      assets[asset.name] = asset.source;
+      assetsInfo.set(asset.name, asset.info);
+    }
+
     compilation.fileDependencies.forEach((dep) => {
       this.addDependency(dep);
     }, this);