Files
swift-mirror/test/AutoDiff/Sema/ImplicitDifferentiableAttributeCrossFile/protocol_default_implementation_witness.swift
2022-09-22 20:28:04 +03:00

14 lines
553 B
Swift

// RUN: %target-swift-frontend -c -verify -primary-file %s %S/Inputs/other_file_protocol_default_implementation_witness.swift
// https://github.com/apple/swift/issues/55897
// Test missing protocol requirement `@differentiable` attribute errors for
// protocol witnesses declared in a different file than the protocol
// conformance.
//
// This test case specifically tests protocol extension method witnesses.
import _Differentiation
// expected-error @+1 {{type 'ConformingStruct' does not conform to protocol 'P1'}}
struct ConformingStruct: P2 {}