only record number ids

sokra · sokra · commit f026310ad6aa · 2018-05-24T16:07:26.000+02:00
fixes webpack#7381
diff --git a/lib/RecordIdsPlugin.js b/lib/RecordIdsPlugin.js
@@ -21,6 +21,7 @@ class RecordIdsPlugin {
 					if (!records.modules.byIdentifier) records.modules.byIdentifier = {};
 					if (!records.modules.usedIds) records.modules.usedIds = {};
 					for (const module of modules) {
+						if (typeof module.id !== "number") continue;
 						const identifier = portableIds
 							? identifierUtils.makePathsRelative(
 									compiler.context,
@@ -110,6 +111,7 @@ class RecordIdsPlugin {
 					if (!records.chunks.bySource) records.chunks.bySource = {};
 					const usedIds = new Set();
 					for (const chunk of chunks) {
+						if (typeof chunk.id !== "number") continue;
 						const name = chunk.name;
 						if (name) records.chunks.byName[name] = chunk.id;
 						const sources = getChunkSources(chunk);
