1 files changed, 91 insertions, 0 deletions
diff --git a/lib/TextAPI/MachO/Platform.cpp b/lib/TextAPI/MachO/Platform.cpp
new file mode 100644
index 000000000000..588ec9a4d83b
--- /dev/null
+++ b/lib/TextAPI/MachO/Platform.cpp
@@ -0,0 +1,91 @@
+//===- llvm/TextAPI/MachO/Platform.cpp - Platform ---------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// Implementations of Platform Helper functions.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/TextAPI/MachO/Platform.h"
+
+namespace llvm {
+namespace MachO {
+
+PlatformKind mapToPlatformKind(PlatformKind Platform, bool WantSim) {
+  switch (Platform) {
+  default:
+    return Platform;
+  case PlatformKind::iOS:
+    return WantSim ? PlatformKind::iOSSimulator : PlatformKind::iOS;
+  case PlatformKind::tvOS:
+    return WantSim ? PlatformKind::tvOSSimulator : PlatformKind::tvOS;
+  case PlatformKind::watchOS:
+    return WantSim ? PlatformKind::watchOSSimulator : PlatformKind::watchOS;
+  }
+  llvm_unreachable("Unknown llvm.MachO.PlatformKind enum");
+}
+
+PlatformKind mapToPlatformKind(const Triple &Target) {
+  switch (Target.getOS()) {
+  default:
+    return PlatformKind::unknown;
+  case Triple::MacOSX:
+    return PlatformKind::macOS;
+  case Triple::IOS:
+    if (Target.isSimulatorEnvironment())
+      return PlatformKind::iOSSimulator;
+    if (Target.getEnvironment() == Triple::MacABI)
+      return PlatformKind::macCatalyst;
+    return PlatformKind::iOS;
+  case Triple::TvOS:
+    return Target.isSimulatorEnvironment() ? PlatformKind::tvOSSimulator
+                                           : PlatformKind::tvOS;
+  case Triple::WatchOS:
+    return Target.isSimulatorEnvironment() ? PlatformKind::watchOSSimulator
+                                           : PlatformKind::watchOS;
+    // TODO: add bridgeOS once in llvm::Triple
+  }
+  llvm_unreachable("Unknown Target Triple");
+}
+
+PlatformSet mapToPlatformSet(ArrayRef<Triple> Targets) {
+  PlatformSet Result;
+  for (const auto &Target : Targets)
+    Result.insert(mapToPlatformKind(Target));
+  return Result;
+}
+
+StringRef getPlatformName(PlatformKind Platform) {
+  switch (Platform) {
+  case PlatformKind::unknown:
+    return "unknown";
+  case PlatformKind::macOS:
+    return "macOS";
+  case PlatformKind::iOS:
+    return "iOS";
+  case PlatformKind::tvOS:
+    return "tvOS";
+  case PlatformKind::watchOS:
+    return "watchOS";
+  case PlatformKind::bridgeOS:
+    return "bridgeOS";
+  case PlatformKind::macCatalyst:
+    return "macCatalyst";
+  case PlatformKind::iOSSimulator:
+    return "iOS Simulator";
+  case PlatformKind::tvOSSimulator:
+    return "tvOS Simulator";
+  case PlatformKind::watchOSSimulator:
+    return "watchOS Simulator";
+  }
+  llvm_unreachable("Unknown llvm.MachO.PlatformKind enum");
+}
+
+} // end namespace MachO.
+} // end namespace llvm.