---
title: Ref
framework: Swift
role: symbol
role_heading: Structure
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+, watchOS 27.0+]
path: swift/ref
---

# Ref

A safe reference allowing in-place reads to a shared value.

## Declaration

```swift
@frozen struct Ref<Value> where Value : ~Copyable
```

## Topics

### Initializers

- [init(_:)](swift/ref/init(_:).md)
- [init(unsafeAddress:borrowing:)](swift/ref/init(unsafeaddress:borrowing:).md)

### Instance Properties

- [value](swift/ref/value.md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Copyable](swift/copyable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Borrowing

- [MutableRef](swift/mutableref.md)