1364 struct DarwinPlatform {  struct
1365   enum SourceKind {
1378   using DarwinPlatformKind = Darwin::DarwinPlatformKind;
1379   using DarwinEnvironmentKind = Darwin::DarwinEnvironmentKind;
1381   DarwinPlatformKind getPlatform() const { return Platform; }  in getPlatform()
1383   DarwinEnvironmentKind getEnvironment() const { return Environment; }  in getEnvironment()
1385   void setEnvironment(DarwinEnvironmentKind Kind) {  in setEnvironment()
1390   StringRef getOSVersion() const {  in getOSVersion()
1396   void setOSVersion(StringRef S) {  in setOSVersion()
1401   bool hasOSVersion() const { return HasOSVersion; }  in hasOSVersion()
1404   bool isExplicitlySpecified() const { return Kind <= DeploymentTargetEnv; }  in isExplicitlySpecified()
1407   bool canInferSimulatorFromArch() const { return InferSimulatorFromArch; }  in canInferSimulatorFromArch()
1410   void addOSVersionMinArgument(DerivedArgList &Args, const OptTable &Opts) {  in addOSVersionMinArgument()
1435   std::string getAsString(DerivedArgList &Args, const OptTable &Opts) {  in getAsString()
1449   static DarwinPlatform createFromTarget(const llvm::Triple &TT,  in createFromTarget()
1466   static DarwinPlatform createOSVersionArg(DarwinPlatformKind Platform,  in createOSVersionArg()
1470   static DarwinPlatform createDeploymentTargetEnv(DarwinPlatformKind Platform,  in createDeploymentTargetEnv()
1477   static DarwinPlatform createFromSDK(DarwinPlatformKind Platform,  in createFromSDK()
1486   static DarwinPlatform createFromArch(llvm::Triple::OSType OS,  in createFromArch()
1494   DarwinSDKInfo inferSDKInfo() {  in inferSDKInfo()
1504   DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, Arg *Argument)  in DarwinPlatform()  function
1506   DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, StringRef Value,  in DarwinPlatform()  argument
1510   static DarwinPlatformKind getPlatformFromOS(llvm::Triple::OSType OS) {  in getPlatformFromOS()
1526   SourceKind Kind;
1527   DarwinPlatformKind Platform;
1528   DarwinEnvironmentKind Environment = DarwinEnvironmentKind::NativeEnvironment;
1529   std::string OSVersion;
1530   bool HasOSVersion = true, InferSimulatorFromArch = true;
1531   Arg *Argument;
1532   StringRef EnvVarName;