mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
9be6519f5a
Builds on 36eae9d4f6 to emit a message instead of just trapping
when a switch over a non-frozen enum ends up not matching anything.
If the enum is known to be an @objc enum, the message is
unexpected enum case 'MyEnum(rawValue: -42)'
and if it's anything else (a Swift enum, a tuple containing enums,
whatever), it's a more opaque
unexpected enum case while switching on value of type 'MyEnum'
The reason for this is to avoid calling String(describing:) or
String(reflecting:) an arbitrary value when the enum might conform to
CustomStringConvertible and therefore /itself/ have a switch that's
going to fall off the end. By handling plain @objc enums (using a
bitcast), we've at least covered the 90% case.
rdar://problem/37728359
82 lines
3.0 KiB
C++
82 lines
3.0 KiB
C++
//===--- KnownDecls.def - Compiler declaration metaprogramming --*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines macros used for macro-metaprogramming with compiler-known
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// declarations.
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//
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//===----------------------------------------------------------------------===//
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#ifndef FUNC_DECL
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# define FUNC_DECL(Name, Id)
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#endif
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FUNC_DECL(ArrayForceCast, "_arrayForceCast")
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FUNC_DECL(ArrayConditionalCast, "_arrayConditionalCast")
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FUNC_DECL(DictionaryUpCast, "_dictionaryUpCast")
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FUNC_DECL(DictionaryDownCast, "_dictionaryDownCast")
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FUNC_DECL(DictionaryDownCastConditional, "_dictionaryDownCastConditional")
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FUNC_DECL(SetUpCast, "_setUpCast")
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FUNC_DECL(SetDownCast, "_setDownCast")
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FUNC_DECL(SetDownCastConditional, "_setDownCastConditional")
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FUNC_DECL(ConvertPointerToPointerArgument,
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"_convertPointerToPointerArgument")
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FUNC_DECL(ConvertInOutToPointerArgument,
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"_convertInOutToPointerArgument")
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FUNC_DECL(ConvertMutableArrayToPointerArgument,
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"_convertMutableArrayToPointerArgument")
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FUNC_DECL(ConvertConstArrayToPointerArgument,
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"_convertConstArrayToPointerArgument")
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FUNC_DECL(ConvertConstStringToUTF8PointerArgument,
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"_convertConstStringToUTF8PointerArgument")
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FUNC_DECL(AllocateUninitializedArray,
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"_allocateUninitializedArray")
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FUNC_DECL(DeallocateUninitializedArray,
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"_deallocateUninitializedArray")
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FUNC_DECL(ForceBridgeFromObjectiveC,
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"_forceBridgeFromObjectiveC")
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FUNC_DECL(ConditionallyBridgeFromObjectiveC,
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"_conditionallyBridgeFromObjectiveC")
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FUNC_DECL(ForceBridgeFromObjectiveCBridgeable,
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"_forceBridgeFromObjectiveC_bridgeable")
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FUNC_DECL(ConditionallyBridgeFromObjectiveCBridgeable,
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"_conditionallyBridgeFromObjectiveC_bridgeable")
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FUNC_DECL(BridgeAnythingToObjectiveC,
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"_bridgeAnythingToObjectiveC")
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FUNC_DECL(BridgeAnyObjectToAny,
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"_bridgeAnyObjectToAny")
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FUNC_DECL(ConvertToAnyHashable, "_convertToAnyHashable")
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FUNC_DECL(DiagnoseUnexpectedNilOptional, "_diagnoseUnexpectedNilOptional")
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FUNC_DECL(DiagnoseUnexpectedEnumCase, "_diagnoseUnexpectedEnumCase")
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FUNC_DECL(DiagnoseUnexpectedEnumCaseValue, "_diagnoseUnexpectedEnumCaseValue")
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FUNC_DECL(GetErrorEmbeddedNSError, "_getErrorEmbeddedNSError")
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FUNC_DECL(UnsafeBitCast, "unsafeBitCast")
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FUNC_DECL(ProjectKeyPathAny, "_projectKeyPathAny")
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FUNC_DECL(ProjectKeyPathPartial, "_projectKeyPathPartial")
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FUNC_DECL(ProjectKeyPathReadOnly, "_projectKeyPathReadOnly")
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FUNC_DECL(ProjectKeyPathWritable, "_projectKeyPathWritable")
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FUNC_DECL(ProjectKeyPathReferenceWritable, "_projectKeyPathReferenceWritable")
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FUNC_DECL(Swap, "swap")
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#undef FUNC_DECL
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