From cb8882f24639e2ea30ce67bf0ff5ba672b780b3e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Roberto=20Pintos=20L=C3=B3pez?=
 <roberto.pintos.lopez@gmail.com>
Date: Fri, 1 Nov 2024 23:59:34 +0100
Subject: [PATCH] fix(common): update LazyServiceIdentifier.is to support
 nullish values

---
 .changeset/eight-waves-roll.md                |  5 +++
 .../models/LazyServiceIdentifier.spec.ts      | 40 +++++++++++++++++++
 .../services/models/LazyServiceIdentifier.ts  |  2 +
 3 files changed, 47 insertions(+)
 create mode 100644 .changeset/eight-waves-roll.md

diff --git a/.changeset/eight-waves-roll.md b/.changeset/eight-waves-roll.md
new file mode 100644
index 00000000..8fca8e24
--- /dev/null
+++ b/.changeset/eight-waves-roll.md
@@ -0,0 +1,5 @@
+---
+"@inversifyjs/common": patch
+---
+
+Updated LazyServiceIdentifier.is to support nullish values
diff --git a/packages/container/libraries/common/src/services/models/LazyServiceIdentifier.spec.ts b/packages/container/libraries/common/src/services/models/LazyServiceIdentifier.spec.ts
index 5a37dd66..9177289f 100644
--- a/packages/container/libraries/common/src/services/models/LazyServiceIdentifier.spec.ts
+++ b/packages/container/libraries/common/src/services/models/LazyServiceIdentifier.spec.ts
@@ -15,6 +15,46 @@ describe(LazyServiceIdentifier.name, () => {
   });
 
   describe('.is', () => {
+    describe('having a non object', () => {
+      let valueFixture: unknown;
+
+      beforeAll(() => {
+        valueFixture = Symbol();
+      });
+
+      describe('when called', () => {
+        let result: unknown;
+
+        beforeAll(() => {
+          result = LazyServiceIdentifier.is(valueFixture);
+        });
+
+        it('should return false', () => {
+          expect(result).toBe(false);
+        });
+      });
+    });
+
+    describe('having a null object', () => {
+      let valueFixture: null;
+
+      beforeAll(() => {
+        valueFixture = null;
+      });
+
+      describe('when called', () => {
+        let result: unknown;
+
+        beforeAll(() => {
+          result = LazyServiceIdentifier.is(valueFixture);
+        });
+
+        it('should return false', () => {
+          expect(result).toBe(false);
+        });
+      });
+    });
+
     describe('having an object with islazyServiceIdentifierSymbol property', () => {
       let valueFixture: LazyServiceIdentifier;
 
diff --git a/packages/container/libraries/common/src/services/models/LazyServiceIdentifier.ts b/packages/container/libraries/common/src/services/models/LazyServiceIdentifier.ts
index 49a3e867..fb97a547 100644
--- a/packages/container/libraries/common/src/services/models/LazyServiceIdentifier.ts
+++ b/packages/container/libraries/common/src/services/models/LazyServiceIdentifier.ts
@@ -18,6 +18,8 @@ export class LazyServiceIdentifier<TInstance = unknown> {
     value: unknown,
   ): value is LazyServiceIdentifier<TInstance> {
     return (
+      typeof value === 'object' &&
+      value !== null &&
       (value as Partial<LazyServiceIdentifier>)[
         islazyServiceIdentifierSymbol
       ] === true