---
title: "init(reflecting:)"
framework: swift
role: symbol
role_heading: Initializer
path: "swift/mirror/init(reflecting:)"
---

# init(reflecting:)

Creates a mirror that reflects on the given instance.

## Declaration

```swift
init(reflecting subject: Any)
```

## Parameters

- `subject`: The instance for which to create a mirror.

## Discussion

Discussion If the dynamic type of subject conforms to CustomReflectable, the resulting mirror is determined by its customMirror property. Otherwise, the result is generated by the language. If the dynamic type of subject has value semantics, subsequent mutations of subject will not observable in Mirror.  In general, though, the observability of mutations is unspecified.