Topics tagged protocol

Topic	Replies	Views	Activity
Can't call protocol requirements on a conforming type Using Swift protocol	9	327	January 24, 2026
Protocol as Dictionary Key or Set element Using Swift collection , learning , protocol	18	526	May 27, 2025
Generics with specialization Using Swift generics , protocol	11	335	April 5, 2025
"Incorrect actor executor assumption" run-time error in Swift 6 mode Using Swift concurrency , protocol , swift6 , globalactor , actor	4	1640	March 15, 2025
Excessive protocols in my App Discussion protocol , unit-testing	7	336	February 24, 2025
Typed throw in a generic function inside a protocol can't find error type in scope Using Swift generics , protocol , swift6 , typed-throws	4	167	January 9, 2025
Instantiate associatedtype from outside of protocol Using Swift associatedtype , protocol	10	434	September 2, 2024
Dynamic cast to protocol conformance across module (not retroactive conformance) Using Swift generics , protocol	2	127	August 1, 2024
FixedWidth cannot build rewrite system for protocol Compiler stdlib , protocol	14	1279	July 31, 2024
How to use @retroactive when the conformed protocol is a customized protocol inherited from `CustomStringConvertible` Using Swift protocol , conformance , swift6 , xcode16	5	5156	July 31, 2024
Have a macro automatically applied to all types conforming to a protocol? Using Swift protocol , macros , attached-macros	0	348	June 7, 2024
Generic Protocols Using Swift generics , protocol	12	5821	May 13, 2024
Metatype casting and member access - type ambiguity error Using Swift generics , protocol	2	1034	May 3, 2024
Protocol private(set) properties Using Swift swift , protocols , protocol	6	959	March 23, 2024
Why does Swift favor protocol extension implementation over witness implementation? Using Swift protocol , static , witness	13	1046	February 19, 2024
Conditional conformance to non-marker protocol cannot depend on conformance of 'T' to non-marker protocol 'Sendable' Using Swift protocol , sendable	3	1379	December 14, 2023
Defining a function with a closure as its parameter, how to use Self as the type of the closure's parameter? Using Swift protocols , protocol , function , functions	0	667	June 26, 2023
Calling a protocol with associatedType's method, doesn't always pick the same specialized generic implementation Using Swift generics , protocol , extension , conformance , type-erasure	3	1249	February 23, 2023
Constrained generic `T` behaves like `Self` - so what is currently `self` in my generic initializer here? Using Swift generics , class , protocol , self	4	1014	January 29, 2023
Problem about conditional conforming to a protocol Using Swift protocol	18	583	January 21, 2023
Protocol Witness Matching Roadmap Discussion protocol , roadmap , witness	9	4757	January 10, 2023
Infer associated type on protocol conformance Using Swift typealias , associatedtype , protocol	3	1233	November 1, 2022
Associated type inference doesn't work in a situation that I assumed it would Using Swift inheritance , protocols , associatedtype , protocol , type-inference	1	590	October 27, 2022
Typealiases inside protocols Using Swift extensions , typealias , protocol , type-system	2	898	October 3, 2022
Promoting synchronous closure to async closure Discussion protocol , closure , asynchronous , asyncawait	2	2133	September 12, 2022
Swift 5.7 compiler bug? Known limitation? My mistake? Using Swift generics , associatedtype , protocol , extension , some-keyword	6	1132	September 12, 2022
Abort trap 6/nonzero exit code Compiler generics , bug , associatedtype , protocol , extension	1	1136	September 9, 2022
Can't assign to self in initializer in protocol extension when protocol inherits from NSCoding Using Swift init , codable , protocol , self , immutability	1	1078	August 11, 2022
Implementing the delegate pattern through generics instead of existential? Using Swift generics , protocols , protocol , any , existential	1	920	July 30, 2022
Cannot assign to property: 'self' is immutable? Using Swift protocol	17	13510	February 17, 2022