@instana/core - npm Package Compare versions

Comparing version 1.68.2 to 1.68.3

package.json

 {
   "name": "@instana/core",
-  "version": "1.68.2",
+  "version": "1.68.3",
   "description": "Core library for Instana's Node.js packages",
@@ -124,3 +124,3 @@ "main": "src/index.js",
   },
-  "gitHead": "9560fd236c4406a87ed377873f107cd01c1a5846"
+  "gitHead": "fc2d673a99079f09c5ce63f0de24649d9715da1a"
 }

src/util/requireHook.js

@@ -11,2 +11,7 @@ 'use strict';
 
+var logger;
+logger = require('../logger').getLogger('util/requireHook', function(newLogger) {
+  logger = newLogger;
+});
+
 exports.init = function() {
@@ -52,4 +57,17 @@ Module._load = patchedModuleLoad;
     for (i = 0; i < applicableByModuleNameTransformers.length; i++) {
-      cacheEntry.moduleExports =
-        applicableByModuleNameTransformers[i](cacheEntry.moduleExports) || cacheEntry.moduleExports;
+      var transformerFn = applicableByModuleNameTransformers[i];
+      if (typeof transformerFn === 'function') {
+        cacheEntry.moduleExports = transformerFn(cacheEntry.moduleExports) || cacheEntry.moduleExports;
+      } else {
+        logger.error(
+          'A requireHook invariant has been violated for module name %s, index %s. The transformer is not a function ' +
+            'but of type "%s" (details: %s). The most likely cause is that something has messed with Node.js\' ' +
+            'module cache. This can result in limited tracing and health check functionality (for example, missing ' +
+            'calls in Instana).',
+          moduleName,
+          i,
+          typeof transformerFn,
+          transformerFn == null ? 'null/undefined' : transformerFn
+        );
+      }
     }
@@ -56,0 +74,0 @@ cacheEntry.appliedByModuleNameTransformers.push(moduleName);

No alert changes

Improved metrics

Lines of code

6574

increased by0.26%

Worsened metrics

Total package byte prevSize

236455

decreased by-4.64%

Number of package files

75

decreased by-1.32%

No dependency changes