NSStringvalued

NSStringvalued is a term used in some documentation to describe any type or object that can be expressed as an NSString. It is not a formal class or protocol in the Cocoa frameworks, but a label applied to values that provide an NSString representation to work with Objective-C APIs.

In practice, NSStringvalued often corresponds to a protocol or interface that requires a way to obtain an NSString. This might be a method such as asNSString() -> NSString, or a property stringValue that returns an NSString. Types that conform to this interface promise a valid NSString representation for consumption by NSString-based code.

Usage: Recognizing a value as NSStringvalued enables smoother interoperability between Swift strings and Objective-C strings, allowing APIs that expect NSString to accept a broad set of input types without explicit per-value conversion. Implementations may reuse an existing NSString instance to avoid unnecessary copying.

Relationship to other concepts: NSStringvalued is distinct from NSString itself; it is a compatibility notion rather than a concrete class. It interacts with bridging rules between Swift and Objective-C, and with frameworks that expose string-value accessors via extensions or protocols. Some libraries may define explicit protocols like NSStringRepresentable to formalize the concept.

See also: NSString, Swift String, bridging between Swift and Objective-C, interoperability.