fix: properly handle webpack compilation stats

src/BuildTimeReport.ts

@@ -37,16 +37,13 @@ export class BuildTimeReport {
     this.hash = hash;
   }
 
-  public addAssets(assets: Record<string, webpack.compilation.Asset & { emitted: boolean }>): void {
-    this.assets = [];
-    Object.entries(assets).forEach(([assetName, asset]) => {
-      if (asset.emitted) {
-        this.assets.push({
-          name: assetName,
-          size: asset.info.size!,
-        });
-      }
-    });
+  public addAssets(assets: Array<AssetStats & { emitted?: boolean }>): void {
+    this.assets = assets
+      .filter((asset) => asset.emitted)
+      .map((asset) => ({
+        name: asset.name,
+        size: asset.size,
+      }));
   }
 
   public addChunks(chunks: webpack.compilation.Chunk[]): void {

src/BuildTimeReporterWebpackPlugin.ts

@@ -2,7 +2,7 @@ import webpack from 'webpack';
 import { JSONSchema4 } from 'schema-utils/declarations/validate';
 import validateOptions from 'schema-utils';
 import { BuildTimeReport } from './BuildTimeReport';
-import { BuildTimeReporterWebpackPluginOptions } from './types';
+import { AssetStats, BuildTimeReporterWebpackPluginOptions } from './types';
 import { getLogger, tapInto, tapPromiseInto } from './utils';
 
 const schema: JSONSchema4 = {
@@ -64,11 +64,11 @@ export class BuildTimeReporterWebpackPlugin {
         report.track('emit');
       }
     });
-    tapInto(this.compiler, 'afterEmit', (compilation) => {
+    tapInto(this.compiler, 'afterEmit', (compilation: webpack.compilation.Compilation) => {
       const report = this.reportsByHash.get(compilation.hash as string);
       if (report) {
         report.track('emit');
-        report.addAssets(compilation.assets);
+        report.addAssets(compilation.getStats().toJson().assets as AssetStats[]);
         report.addChunks(compilation.chunks);
         report.addModules(compilation.modules);
       } else {

src/index.ts

@@ -1,3 +1,9 @@
 import { BuildTimeReporterWebpackPlugin } from './BuildTimeReporterWebpackPlugin';
 
-export = BuildTimeReporterWebpackPlugin;
+import { BuildTimeReporterWebpackPluginOptions, StepStats, AssetStats, Step, BuildTimeReporterStats } from './types';
+
+export type { BuildTimeReporterWebpackPluginOptions, StepStats, AssetStats, Step, BuildTimeReporterStats };
+
+export default BuildTimeReporterWebpackPlugin;
+
+export { BuildTimeReporterWebpackPlugin };