From 07ad896f7aedee7d32e8247323b54b759b7637e5 Mon Sep 17 00:00:00 2001
From: Tobias Koppers <tobias.koppers@googlemail.com>
Date: Tue, 5 Oct 2021 20:14:21 +0200
Subject: [PATCH] bugfix cacheUnaffected

---
 lib/Compilation.js | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/lib/Compilation.js b/lib/Compilation.js
index 6dd4d1acf..74b858ec8 100644
--- a/lib/Compilation.js
+++ b/lib/Compilation.js
@@ -2252,7 +2252,7 @@ BREAKING CHANGE: Asset processing hooks in Compilation has been merged into a si
 		}
 
 		for (const module of modulesWithoutCache) {
-			const buildInfo = module.buildInfo && module.buildInfo.buildInfo;
+			const buildInfo = module.buildInfo;
 			if (buildInfo) {
 				// create a new entry
 				const memCache = new WeakTupleMap();
@@ -2340,6 +2340,9 @@ BREAKING CHANGE: Asset processing hooks in Compilation has been merged into a si
 		const moduleMemCaches2 = (this.moduleMemCaches2 = new Map());
 		const { moduleGraph, chunkGraph } = this;
 		const key = "memCache2";
+		let statUnchanged = 0;
+		let statChanged = 0;
+		let statNew = 0;
 		/**
 		 * @param {Module} module module
 		 * @returns {{ modules?: Map<Module, string | number | undefined>, blocks?: (string | number)[] }} references
@@ -2354,7 +2357,7 @@ BREAKING CHANGE: Asset processing hooks in Compilation has been merged into a si
 				for (const m of outgoing.keys()) {
 					if (!m) continue;
 					if (modules === undefined) modules = new Map();
-					modules.set(m, chunkGraph.getModuleId(module));
+					modules.set(m, chunkGraph.getModuleId(m));
 				}
 			}
 			if (module.blocks.length > 0) {
@@ -2416,15 +2419,24 @@ BREAKING CHANGE: Asset processing hooks in Compilation has been merged into a si
 					memCache: memCache2
 				});
 				moduleMemCaches2.set(module, memCache2);
+				statNew++;
 			} else if (!compareReferences(module, cache.references)) {
 				const memCache = new WeakTupleMap();
 				cache.references = computeReferences(module);
 				cache.memCache = memCache;
 				moduleMemCaches2.set(module, memCache);
+				statChanged++;
 			} else {
 				moduleMemCaches2.set(module, cache.memCache);
+				statUnchanged++;
 			}
 		}
+
+		this.logger.log(
+			`${Math.round(
+				(100 * statChanged) / (statNew + statChanged + statUnchanged)
+			)}% modules flagged as affected by chunk graph (${statNew} new modules, ${statChanged} changed, ${statUnchanged} unchanged)`
+		);
 	}
 
 	finish(callback) {