1625 struct DarwinPlatform {  struct
1767   static DarwinPlatform
1771     DarwinPlatform Result(TargetArg, getPlatformFromOS(TT.getOS()), OSVersion,  in createFromTarget()
1780   static DarwinPlatform
1784     DarwinPlatform Result(MTargetOSArg, getPlatformFromOS(OS),  in createFromMTargetOS()
1790   static DarwinPlatform createOSVersionArg(DarwinPlatformKind Platform, Arg *A,  in createOSVersionArg()  argument
1792     DarwinPlatform Result{OSVersionArg, Platform, A};  in createOSVersionArg()
1797   static DarwinPlatform createDeploymentTargetEnv(DarwinPlatformKind Platform,  in createDeploymentTargetEnv()  argument
1800     DarwinPlatform Result(DeploymentTargetEnv, Platform, Value);  in createDeploymentTargetEnv()
1804   static DarwinPlatform createFromSDK(DarwinPlatformKind Platform,  in createFromSDK()  argument
1807     DarwinPlatform Result(InferredFromSDK, Platform, Value);  in createFromSDK()
1813   static DarwinPlatform createFromArch(llvm::Triple::OSType OS,  in createFromArch()  argument
1815     return DarwinPlatform(InferredFromArch, getPlatformFromOS(OS), Value);  in createFromArch()
1833   DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, Arg *Argument)  in DarwinPlatform()  function
1835   DarwinPlatform(SourceKind Kind, DarwinPlatformKind Platform, StringRef Value,  in DarwinPlatform()  function
1872 std::optional<DarwinPlatform>
1892     return DarwinPlatform::createOSVersionArg(Darwin::MacOS, macOSVersion,  in getDeploymentTargetFromOSVersionArg()
1900     return DarwinPlatform::createOSVersionArg(  in getDeploymentTargetFromOSVersionArg()
1910     return DarwinPlatform::createOSVersionArg(  in getDeploymentTargetFromOSVersionArg()
1915     return DarwinPlatform::createOSVersionArg(  in getDeploymentTargetFromOSVersionArg()
1924 std::optional<DarwinPlatform>
1972       return DarwinPlatform::createDeploymentTargetEnv(  in getDeploymentTargetFromEnvironmentVariables()
1991 std::optional<DarwinPlatform>
2018       [&](StringRef SDK) -> std::optional<DarwinPlatform> {  in inferDeploymentTargetFromSDK()
2020       return DarwinPlatform::createFromSDK(  in inferDeploymentTargetFromSDK()
2024       return DarwinPlatform::createFromSDK(Darwin::MacOS,  in inferDeploymentTargetFromSDK()
2027       return DarwinPlatform::createFromSDK(  in inferDeploymentTargetFromSDK()
2032       return DarwinPlatform::createFromSDK(  in inferDeploymentTargetFromSDK()
2036       return DarwinPlatform::createFromSDK(  in inferDeploymentTargetFromSDK()
2040       return DarwinPlatform::createFromSDK(Darwin::DriverKit, Version);  in inferDeploymentTargetFromSDK()
2098 std::optional<DarwinPlatform>
2116   return DarwinPlatform::createFromArch(OSTy,  in inferDeploymentTargetFromArch()
2121 std::optional<DarwinPlatform> getDeploymentTargetFromTargetArg(  in getDeploymentTargetFromTargetArg()
2155   return DarwinPlatform::createFromTarget(Triple, OSVersion,  in getDeploymentTargetFromTargetArg()
2161 std::optional<DarwinPlatform> getDeploymentTargetFromMTargetOSArg(  in getDeploymentTargetFromMTargetOSArg()
2187   return DarwinPlatform::createFromMTargetOS(TT.getOS(), Version,  in getDeploymentTargetFromMTargetOSArg()
2236   std::optional<DarwinPlatform> OSTarget =  in AddDeploymentTarget()
2246     std::optional<DarwinPlatform> OSVersionArgTarget =  in AddDeploymentTarget()
2281     std::optional<DarwinPlatform> OSVersionArgTarget =  in AddDeploymentTarget()
2299         std::optional<DarwinPlatform> SDKTarget =  in AddDeploymentTarget()