diff --git a/packages/type/src/path.ts b/packages/type/src/path.ts
index 8a0b58360..9841a457b 100644
--- a/packages/type/src/path.ts
+++ b/packages/type/src/path.ts
@@ -18,6 +18,34 @@ function pathResolverCode(type: Type, compilerContext: CompilerContext, jitStack
             ${pathResolverCode(type.type, compilerContext, jitStack)}
         }
         `;
+    } else if (type.kind === ReflectionKind.tupleMember) {
+        return `
+            if (!path) return ${compilerContext.reserveVariable('type', type)};
+            ${pathResolverCode(type.type, compilerContext, jitStack)};
+        `;
+    } else if (type.kind === ReflectionKind.tuple) {
+        const cases: string[] = [];
+        for (let i = 0; i < type.types.length; i++) {
+            cases.push(`
+            case "${i}": {
+                ${pathResolverCode(type.types[i], compilerContext, jitStack)}
+            }
+            `);
+        }
+
+        return `
+        {
+            const dotIndex = path.indexOf('.');
+            const segment = dotIndex === -1 ? path : path.substr(0, dotIndex);
+            path = dotIndex === -1 ? '' : path.substr(dotIndex + 1);
+            switch (segment) {
+                ${cases.join('\n')}
+                default: {
+                    return undefined;
+                }
+            }
+        }
+        `;
     } else if (type.kind === ReflectionKind.class && type.classType === Set) {
     } else if (type.kind === ReflectionKind.class && type.classType === Map) {
     } else if (type.kind === ReflectionKind.union) {
@@ -72,6 +100,8 @@ export function pathResolver<T>(type?: ReceiveType<T>, jitStack: JitStack = new
         const pathName = dotIndex === -1 ? path : path.substr(0, dotIndex);
         path = dotIndex === -1 ? '' : path.substr(dotIndex + 1);
 
+        if (!pathName) return ${compilerContext.reserveVariable('type', type)};
+
         switch(pathName) {
             ${lines.join('\n')}
             default: {
diff --git a/packages/type/tests/path.spec.ts b/packages/type/tests/path.spec.ts
index dd7ee6f8d..2d470f1db 100644
--- a/packages/type/tests/path.spec.ts
+++ b/packages/type/tests/path.spec.ts
@@ -50,6 +50,22 @@ test('pathResolver deep array object', () => {
     expect(resolver('b.0.0.c')).toMatchObject({ kind: ReflectionKind.propertySignature, type: { kind: ReflectionKind.boolean } });
 });
 
+test('pathResolver deep array object', () => {
+    type t = { a: [string, number, [boolean, string, { b: number }]?] };
+
+    const resolver = pathResolver<t>();
+
+    expect(resolver('a')).toMatchObject({ kind: ReflectionKind.propertySignature, type: { kind: ReflectionKind.tuple } });
+
+    expect(resolver('a.0')).toMatchObject({ kind: ReflectionKind.tupleMember, type: { kind: ReflectionKind.string } });
+    expect(resolver('a.1')).toMatchObject({ kind: ReflectionKind.tupleMember, type: { kind: ReflectionKind.number } });
+
+    expect(resolver('a.2.0')).toMatchObject({ kind: ReflectionKind.tupleMember, type: { kind: ReflectionKind.boolean } });
+    expect(resolver('a.2.1')).toMatchObject({ kind: ReflectionKind.tupleMember, type: { kind: ReflectionKind.string } });
+    expect(resolver('a.2.2')).toMatchObject({ kind: ReflectionKind.tupleMember, type: { kind: ReflectionKind.objectLiteral } });
+    expect(resolver('a.2.2.b')).toMatchObject({ kind: ReflectionKind.propertySignature });
+});
+
 test('pathResolver deep class', () => {
     interface Config {
         name: string;
diff --git a/packages/type/tests/typeguard.spec.ts b/packages/type/tests/typeguard.spec.ts
index 130edcedf..e85a7a942 100644
--- a/packages/type/tests/typeguard.spec.ts
+++ b/packages/type/tests/typeguard.spec.ts
@@ -10,6 +10,9 @@
 import { expect, test } from '@jest/globals';
 import { float, float32, int8, integer, PrimaryKey, Reference } from '../src/reflection/type.js';
 import { is } from '../src/typeguard.js';
+import { Serializer } from '../src/serializer.js';
+import { cast } from '../src/serializer-facade.js';
+import { isReferenceInstance } from '../src/reference.js';
 
 test('primitive string', () => {
     expect(is<string>('a')).toEqual(true);
@@ -198,10 +201,10 @@ test('array any', () => {
     expect(is<any[]>(true)).toEqual(false);
     expect(is<any[]>({})).toEqual(false);
 
-    expect(is<any[]>({length:1})).toEqual(false);
-    expect(is<any[]>({length:0})).toEqual(false);
-    expect(is<any[]>({length:null})).toEqual(false);
-    expect(is<any[]>({length:undefined})).toEqual(false);
+    expect(is<any[]>({ length: 1 })).toEqual(false);
+    expect(is<any[]>({ length: 0 })).toEqual(false);
+    expect(is<any[]>({ length: null })).toEqual(false);
+    expect(is<any[]>({ length: undefined })).toEqual(false);
 });
 
 test('union', () => {
@@ -397,8 +400,8 @@ test('class with literal and default', () => {
         readConcernLevel: 'local' = 'local';
     }
 
-    expect(is<ConnectionOptions>({readConcernLevel: 'local'})).toBe(true);
-    expect(is<ConnectionOptions>({readConcernLevel: 'local2'})).toBe(false);
+    expect(is<ConnectionOptions>({ readConcernLevel: 'local' })).toBe(true);
+    expect(is<ConnectionOptions>({ readConcernLevel: 'local2' })).toBe(false);
 });
 
 test('union literal', () => {
@@ -406,6 +409,41 @@ test('union literal', () => {
         readConcernLevel: 'local' | 'majority' | 'linearizable' | 'available' = 'majority';
     }
 
-    expect(is<ConnectionOptions>({readConcernLevel: 'majority'})).toBe(true);
-    expect(is<ConnectionOptions>({readConcernLevel: 'majority2'})).toBe(false);
+    expect(is<ConnectionOptions>({ readConcernLevel: 'majority' })).toBe(true);
+    expect(is<ConnectionOptions>({ readConcernLevel: 'majority2' })).toBe(false);
+});
+
+test('union classes with generic', () => {
+    class Group {
+        id: number & PrimaryKey = 0;
+        second: string = '';
+    }
+
+    class User {
+        id: number = 0;
+        groups: (Group & Reference)[] = [];
+    }
+
+    const serializer = new Serializer();
+
+    const newGroup = cast<Group>({ id: 1, second: 'a' });
+
+    const a = cast<User>({
+        id: 1,
+        groups: [newGroup],
+    }, undefined, serializer);
+
+    expect(a.groups[0]).toBeInstanceOf(Group);
+    expect(isReferenceInstance(a.groups[0])).toBe(false);
+
+    const b = cast<User>({
+        id: 1,
+        groups: [1],
+    }, undefined, serializer);
+
+    expect(b.groups[0]).toBeInstanceOf(Group);
+    expect(isReferenceInstance(b.groups[0])).toBe(true);
+    if (isReferenceInstance(b.groups[0])) {
+        //do something with this instance and fully load it
+    }
 });