mirror of
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e6d97e8de7
If an imported C struct has no __nonnull pointer fields, then we can give a default initializer that zeroes all of its fields. This becomes a requirement when working with partially-imported types like NSDecimal. NSDecimal has bitfields Swift can't see yet, so it's impossible to DI, but the Foundation functions that work with NSDecimal all emit their result by out parameter, and without access to its fields it is impossible to initialize an NSDecimal for use with one of these functions. Implement the initializer using a builtin that gets lowered by IRGen; this is also made necessary by the fact that Swift has only a partial view of the struct, so we can't form a complete zero initializer until we have the definitive type layout from Clang. Swift SVN r23727
154 lines
4.1 KiB
Swift
154 lines
4.1 KiB
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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@exported import Darwin // Clang module
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//===----------------------------------------------------------------------===//
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// MacTypes.h
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//===----------------------------------------------------------------------===//
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public let noErr: OSStatus = 0
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//===----------------------------------------------------------------------===//
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// sys/errno.h
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//===----------------------------------------------------------------------===//
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public var errno : Int32 {
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get {
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return __error().memory
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}
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set {
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__error().memory = newValue
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}
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}
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//===----------------------------------------------------------------------===//
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// stdio.h
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//===----------------------------------------------------------------------===//
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public var stdin : UnsafeMutablePointer<FILE> {
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get {
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return __stdinp
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}
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set {
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__stdinp = newValue
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}
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}
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public var stdout : UnsafeMutablePointer<FILE> {
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get {
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return __stdoutp
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}
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set {
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__stdoutp = newValue
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}
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}
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public var stderr : UnsafeMutablePointer<FILE> {
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get {
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return __stderrp
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}
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set {
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__stderrp = newValue
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}
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}
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//===----------------------------------------------------------------------===//
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// fcntl.h
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//===----------------------------------------------------------------------===//
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@asmname("_swift_Darwin_open")
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func _swift_Darwin_open(path: UnsafePointer<CChar>,
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oflag: CInt, mode: mode_t) -> CInt
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@asmname("_swift_Darwin_openat")
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func _swift_Darwin_openat(fd: CInt,
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path: UnsafePointer<CChar>,
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oflag: CInt, mode: mode_t) -> CInt
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public func open(path: UnsafePointer<CChar>, oflag: CInt) -> CInt {
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return _swift_Darwin_open(path, oflag, 0)
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}
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public func open(path: UnsafePointer<CChar>, oflag: CInt,
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mode: mode_t) -> CInt {
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return _swift_Darwin_open(path, oflag, mode)
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}
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public func openat(fd: CInt, path: UnsafePointer<CChar>,
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oflag: CInt) -> CInt {
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return _swift_Darwin_openat(fd, path, oflag, 0)
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}
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public func openat(fd: CInt, path: UnsafePointer<CChar>,
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oflag: CInt, mode: mode_t) -> CInt {
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return _swift_Darwin_openat(fd, path, oflag, mode)
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}
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public let S_IFMT = mode_t(0o170000)
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public let S_IFIFO = mode_t(0o010000)
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public let S_IFCHR = mode_t(0o020000)
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public let S_IFDIR = mode_t(0o040000)
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public let S_IFBLK = mode_t(0o060000)
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public let S_IFREG = mode_t(0o100000)
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public let S_IFLNK = mode_t(0o120000)
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public let S_IFSOCK = mode_t(0o140000)
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public let S_IFWHT = mode_t(0o160000)
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public let S_IRWXU = mode_t(0o000700)
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public let S_IRUSR = mode_t(0o000400)
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public let S_IWUSR = mode_t(0o000200)
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public let S_IXUSR = mode_t(0o000100)
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public let S_IRWXG = mode_t(0o000070)
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public let S_IRGRP = mode_t(0o000040)
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public let S_IWGRP = mode_t(0o000020)
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public let S_IXGRP = mode_t(0o000010)
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public let S_IRWXO = mode_t(0o000007)
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public let S_IROTH = mode_t(0o000004)
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public let S_IWOTH = mode_t(0o000002)
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public let S_IXOTH = mode_t(0o000001)
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public let S_ISUID = mode_t(0o004000)
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public let S_ISGID = mode_t(0o002000)
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public let S_ISVTX = mode_t(0o001000)
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public let S_ISTXT = S_ISVTX
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public let S_IREAD = S_IRUSR
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public let S_IWRITE = S_IWUSR
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public let S_IEXEC = S_IXUSR
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//===----------------------------------------------------------------------===//
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// unistd.h
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//===----------------------------------------------------------------------===//
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@availability(*, unavailable, message="Please use threads or posix_spawn*()")
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public func fork() -> Int32 {
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errno = ENOSYS
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return -1
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}
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@availability(*, unavailable, message="Please use threads or posix_spawn*()")
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public func vfork() -> Int32 {
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errno = ENOSYS
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return -1
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}
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// ${'Local Variables'}:
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// eval: (read-only-mode 1)
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// End:
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