| //===----------------------------------------------------------------------===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // namespace |
| public enum SwiftRuntime { |
| public enum MetadataKind : Int { |
| case `class` = 0 |
| case `struct` = 1 |
| case `enum` = 2 |
| case optional = 3 |
| case opaque = 8 |
| case tuple = 9 |
| case function = 10 |
| case existential = 12 |
| case metatype = 13 |
| case objCClassWrapper = 14 |
| case existentialMetatype = 15 |
| case foreignClass = 16 |
| case heapLocalVariable = 64 |
| case heapGenericLocalVariable = 65 |
| case errorObject = 128 |
| } |
| |
| @_silgen_name("getMetadataKindOf") |
| private static func _metadataKind<T>(of value: T) -> UInt32 |
| |
| public static func metadataKind<T>(of value: T) -> MetadataKind { |
| return MetadataKind(rawValue: Int(_metadataKind(of: value)))! |
| } |
| } |
| |
