feat: less verbose module referencing on errors/debug messages

lib/conditional.module.ts

@@ -1,6 +1,23 @@
-import { DynamicModule, Logger, ModuleMetadata } from '@nestjs/common';
+import { DynamicModule, ForwardReference, Logger, ModuleMetadata, Type } from '@nestjs/common';
 import { ConfigModule } from './config.module';
 
+/**
+ * Same logic as in `@nestjs/core` package.
+ * @param instance The instance which should get the name from
+ * @returns The name of an instance or `undefined`
+ */
+const getInstanceName = (instance: unknown): string | undefined => {
+  if ((instance as ForwardReference)?.forwardRef) {
+    return (instance as ForwardReference).forwardRef()?.name;
+  }
+
+  if ((instance as DynamicModule).module) {
+    return (instance as DynamicModule).module?.name;
+  }
+
+  return (instance as Type).name;
+};
+
 /**
  * @publicApi
  */
@@ -14,10 +31,11 @@ export class ConditionalModule {
     options?: { timeout?: number; debug?: boolean },
   ) {
     const { timeout = 5000, debug = true } = options ?? {};
+    const moduleName = getInstanceName(module) || module.toString();
 
     const timer = setTimeout(() => {
       throw new Error(
-        `Nest was not able to resolve the config variables within ${timeout} milliseconds. Bause of this, the ConditionalModule was not able to determine if ${module.toString()} should be registered or not`,
+        `Nest was not able to resolve the config variables within ${timeout} milliseconds. Bause of this, the ConditionalModule was not able to determine if ${moduleName} should be registered or not`,
       );
     }, timeout);
     timer.unref();
@@ -40,7 +58,7 @@ export class ConditionalModule {
     } else {
       if (debug) {
         Logger.debug(
-          `${condition.toString()} evaluated to false. Skipping the registration of ${module.toString()}`,
+          `${condition.toString()} evaluated to false. Skipping the registration of ${moduleName}`,
           ConditionalModule.name,
         );
       }