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fbd2e4d872
This reflects the fact that the attribute's only for compiler-internal use, and isn't really equivalent to C's asm attribute, since it doesn't change the calling convention to be C-compatible.
83 lines
2.3 KiB
Swift
83 lines
2.3 KiB
Swift
//===--- OpaqueIdentityFunctions.swift ------------------------------------===//
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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 - 2015 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 http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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@_silgen_name("swift_stdlib_getPointer")
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func _stdlib_getPointer(x: COpaquePointer) -> COpaquePointer
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public func _opaqueIdentity<T>(x: T) -> T {
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let ptr = UnsafeMutablePointer<T>.alloc(1)
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ptr.initialize(x)
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let result =
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UnsafeMutablePointer<T>(_stdlib_getPointer(COpaquePointer(ptr))).memory
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ptr.destroy()
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ptr.dealloc(1)
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return result
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}
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func _blackHolePtr<T>(x: UnsafePointer<T>) {
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_stdlib_getPointer(COpaquePointer(x))
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}
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public func _blackHole<T>(x: T) {
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var x = x
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_blackHolePtr(&x)
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}
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@inline(never)
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public func getBool(x: Bool) -> Bool { return _opaqueIdentity(x) }
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@inline(never)
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public func getInt8(x: Int8) -> Int8 { return _opaqueIdentity(x) }
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@inline(never)
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public func getInt16(x: Int16) -> Int16 { return _opaqueIdentity(x) }
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@inline(never)
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public func getInt32(x: Int32) -> Int32 { return _opaqueIdentity(x) }
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@inline(never)
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public func getInt64(x: Int64) -> Int64 { return _opaqueIdentity(x) }
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@inline(never)
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public func getInt(x: Int) -> Int { return _opaqueIdentity(x) }
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@inline(never)
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public func getUInt8(x: UInt8) -> UInt8 { return _opaqueIdentity(x) }
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@inline(never)
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public func getUInt16(x: UInt16) -> UInt16 { return _opaqueIdentity(x) }
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@inline(never)
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public func getUInt32(x: UInt32) -> UInt32 { return _opaqueIdentity(x) }
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@inline(never)
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public func getUInt64(x: UInt64) -> UInt64 { return _opaqueIdentity(x) }
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@inline(never)
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public func getUInt(x: UInt) -> UInt { return _opaqueIdentity(x) }
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@inline(never)
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public func getFloat32(x: Float32) -> Float32 { return _opaqueIdentity(x) }
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@inline(never)
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public func getFloat64(x: Float64) -> Float64 { return _opaqueIdentity(x) }
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#if arch(i386) || arch(x86_64)
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@inline(never)
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public func getFloat80(x: Float80) -> Float80 { return _opaqueIdentity(x) }
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#endif
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public func getPointer(x: COpaquePointer) -> COpaquePointer {
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return _opaqueIdentity(x)
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}
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