Files
swift-mirror/lib/AST/PlatformKind.cpp
2014-09-28 02:21:20 +00:00

92 lines
3.2 KiB
C++

//===--- PlatformKind.cpp - Swift Language Platform Kinds -------*- C++ -*-===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
//
// This file implements the platform kinds for API availability.
//
//===----------------------------------------------------------------------===//
#include "swift/AST/PlatformKind.h"
#include "swift/Basic/LangOptions.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/Support/ErrorHandling.h"
using namespace swift;
StringRef swift::platformString(PlatformKind platform) {
switch (platform) {
case PlatformKind::none:
return "*";
#define AVAILABILITY_PLATFORM(X, PrettyName) \
case PlatformKind::X: \
return #X;
#include "swift/AST/PlatformKinds.def"
}
llvm_unreachable("bad PlatformKind");
}
StringRef swift::prettyPlatformString(PlatformKind platform) {
switch (platform) {
case PlatformKind::none:
return "*";
#define AVAILABILITY_PLATFORM(X, PrettyName) \
case PlatformKind::X: \
return PrettyName;
#include "swift/AST/PlatformKinds.def"
}
llvm_unreachable("bad PlatformKind");
}
Optional<PlatformKind> swift::platformFromString(StringRef Name) {
if (Name == "*")
return PlatformKind::none;
return llvm::StringSwitch<Optional<PlatformKind>>(Name)
#define AVAILABILITY_PLATFORM(X, PrettyName) .Case(#X, PlatformKind::X)
#include "swift/AST/PlatformKinds.def"
.Default(Optional<PlatformKind>());
}
bool swift::isPlatformActive(PlatformKind Platform, LangOptions &LangOpts) {
if (Platform == PlatformKind::none)
return true;
if (Platform == PlatformKind::OSXApplicationExtension ||
Platform == PlatformKind::iOSApplicationExtension)
if (!LangOpts.EnableAppExtensionRestrictions)
return false;
// FIXME: This is an awful way to get the current OS.
switch (Platform) {
case PlatformKind::OSX:
case PlatformKind::OSXApplicationExtension:
return LangOpts.getTargetConfigOption("os") == "OSX";
case PlatformKind::iOS:
case PlatformKind::iOSApplicationExtension:
return LangOpts.getTargetConfigOption("os") == "iOS";
case PlatformKind::none:
llvm_unreachable("handled above");
}
llvm_unreachable("bad PlatformKind");
}
PlatformKind swift::targetPlatform(LangOptions &LangOpts) {
StringRef OSTargetConfig = LangOpts.getTargetConfigOption("os");
return llvm::StringSwitch<PlatformKind>(OSTargetConfig)
.Case("OSX", (LangOpts.EnableAppExtensionRestrictions
? PlatformKind::OSXApplicationExtension
: PlatformKind::OSX))
.Case("iOS", (LangOpts.EnableAppExtensionRestrictions
? PlatformKind::iOSApplicationExtension
: PlatformKind::iOS))
.Default(PlatformKind::none);
}