| //===--- OpaqueIdentityFunctions.swift ------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| @_silgen_name("getPointer") |
| func _getPointer(_ x: OpaquePointer) -> OpaquePointer |
| |
| public func _opaqueIdentity<T>(_ x: T) -> T { |
| let ptr = UnsafeMutablePointer<T>.allocate(capacity: 1) |
| ptr.initialize(to: x) |
| let result = |
| UnsafeMutablePointer<T>(_getPointer(OpaquePointer(ptr))).pointee |
| ptr.deinitialize(count: 1) |
| ptr.deallocate() |
| return result |
| } |
| |
| func _blackHolePtr<T>(_ x: UnsafePointer<T>) { |
| _ = _getPointer(OpaquePointer(x)) |
| } |
| |
| public func _blackHole<T>(_ x: T) { |
| var x = x |
| _blackHolePtr(&x) |
| } |
| |
| @inline(never) |
| public func getBool(_ x: Bool) -> Bool { return _opaqueIdentity(x) } |
| |
| @inline(never) |
| public func getInt8(_ x: Int8) -> Int8 { return _opaqueIdentity(x) } |
| |
| @inline(never) |
| public func getInt16(_ x: Int16) -> Int16 { return _opaqueIdentity(x) } |
| |
| @inline(never) |
| public func getInt32(_ x: Int32) -> Int32 { return _opaqueIdentity(x) } |
| |
| @inline(never) |
| public func getInt64(_ x: Int64) -> Int64 { return _opaqueIdentity(x) } |
| |
| @inline(never) |
| public func getInt(_ x: Int) -> Int { return _opaqueIdentity(x) } |
| |
| @inline(never) |
| public func getUInt8(_ x: UInt8) -> UInt8 { return _opaqueIdentity(x) } |
| |
| @inline(never) |
| public func getUInt16(_ x: UInt16) -> UInt16 { return _opaqueIdentity(x) } |
| |
| @inline(never) |
| public func getUInt32(_ x: UInt32) -> UInt32 { return _opaqueIdentity(x) } |
| |
| @inline(never) |
| public func getUInt64(_ x: UInt64) -> UInt64 { return _opaqueIdentity(x) } |
| |
| @inline(never) |
| public func getUInt(_ x: UInt) -> UInt { return _opaqueIdentity(x) } |
| |
| @inline(never) |
| public func getFloat32(_ x: Float32) -> Float32 { return _opaqueIdentity(x) } |
| |
| @inline(never) |
| public func getFloat64(_ x: Float64) -> Float64 { return _opaqueIdentity(x) } |
| |
| #if !(os(Windows) || os(Android)) && (arch(i386) || arch(x86_64)) |
| @inline(never) |
| public func getFloat80(_ x: Float80) -> Float80 { return _opaqueIdentity(x) } |
| #endif |
| |
| public func getPointer(_ x: OpaquePointer) -> OpaquePointer { |
| return _opaqueIdentity(x) |
| } |