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// RUN: not %target-swift-frontend(mock-sdk: %clang-importer-sdk-nosource) -typecheck %s -import-objc-header %S/Inputs/objc_implementation.h 2>&1 | %FileCheck --check-prefixes NO,CHECK %s
// RUN: not %target-swift-frontend(mock-sdk: %clang-importer-sdk-nosource) -typecheck %s -import-objc-header %S/Inputs/objc_implementation.h -enable-experimental-feature CImplementation 2>&1 | %FileCheck --check-prefixes YES,C,CHECK %s
// REQUIRES: swift_feature_CImplementation
// YES-DAG: cdecl_implementation_features.swift:[[@LINE+4]]:{{[0-9]+}}: warning: global function 'CImplFunc1' of type '(Double) -> ()' does not match type '(Int32) -> Void' declared by the header; this will become an error after adopting '@implementation'
// NO-DAG: cdecl_implementation_features.swift:[[@LINE+3]]:{{[0-9]+}}: error: '_objcImplementation' attribute is only valid when experimental feature CImplementation is enabled
// YES-NOT: cdecl_implementation_features.swift:[[@LINE+2]]:{{[0-9]+}}: warning: '@_objcImplementation' is deprecated; use '@implementation' instead
// TODO: When @implementation @_cdecl stabilizes, YES-NOT on the line above will become YES-DAG
@_objcImplementation @_cdecl("CImplFunc1") func CImplFunc1(_: Double) {}
// YES-DAG: cdecl_implementation_features.swift:[[@LINE+3]]:{{[0-9]+}}: error: global function 'CImplFunc2' of type '(Double) -> ()' does not match type '(Int32) -> Void' declared by the header{{$}}
// NO-DAG: cdecl_implementation_features.swift:[[@LINE+2]]:{{[0-9]+}}: error: 'implementation' attribute is only valid when experimental feature CImplementation is enabled
// YES-NOT: cdecl_implementation_features.swift:[[@LINE+1]]:{{[0-9]+}}: error: 'implementation' attribute is only valid when experimental feature CImplementation is enabled
@implementation @_cdecl("CImplFunc2") func CImplFunc2(_: Double) {}
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