[TextAPI] Introduce TBDv4

Summary:
This format introduces new features and platforms
The motivation for this format is to support more than 1 platform since previous versions only supported additional architectures and 1 platform,
for example ios + ios-simulator and macCatalyst.

Reviewers: ributzka, steven_wu

Reviewed By: ributzka

Subscribers: mgorny, hiraditya, mgrang, dexonsmith, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D67529

llvm-svn: 374058

1 files changed, 39 insertions, 1 deletions

diff --git a/llvm/lib/TextAPI/MachO/Target.cpp b/llvm/lib/TextAPI/MachO/Target.cpp
index 3052aa5..52fb339 100644
--- a/llvm/lib/TextAPI/MachO/Target.cpp
+++ b/llvm/lib/TextAPI/MachO/Target.cpp
@@ -17,6 +17,44 @@
 namespace llvm {
 namespace MachO {
 
+Expected<Target> Target::create(StringRef TargetValue) {
+  auto Result = TargetValue.split('-');
+  auto ArchitectureStr = Result.first;
+  auto Architecture = getArchitectureFromName(ArchitectureStr);
+  if (Architecture == AK_unknown)
+    return make_error<StringError>("invalid architecture",
+                                   inconvertibleErrorCode());
+  auto PlatformStr = Result.second;
+  PlatformKind Platform;
+  Platform = StringSwitch<PlatformKind>(PlatformStr)
+                 .Case("macos", PlatformKind::macOS)
+                 .Case("ios", PlatformKind::iOS)
+                 .Case("tvos", PlatformKind::tvOS)
+                 .Case("watchos", PlatformKind::watchOS)
+                 .Case("bridgeos", PlatformKind::bridgeOS)
+                 .Case("maccatalyst", PlatformKind::macCatalyst)
+                 .Case("ios-simulator", PlatformKind::iOSSimulator)
+                 .Case("tvos-simulator", PlatformKind::tvOSSimulator)
+                 .Case("watchos-simulator", PlatformKind::watchOSSimulator)
+                 .Default(PlatformKind::unknown);
+
+  if (Platform == PlatformKind::unknown) {
+    if (PlatformStr.startswith("<") && PlatformStr.endswith(">")) {
+      PlatformStr = PlatformStr.drop_front().drop_back();
+      unsigned long long RawValue;
+      if (PlatformStr.getAsInteger(10, RawValue))
+        return make_error<StringError>("invalid platform number",
+                                       inconvertibleErrorCode());
+
+      Platform = (PlatformKind)RawValue;
+    }
+    return make_error<StringError>("invalid platform",
+                                   inconvertibleErrorCode());
+  }
+
+  return Target{Architecture, Platform};
+}
+
 Target::operator std::string() const {
   return (getArchitectureName(Arch) + " (" + getPlatformName(Platform) + ")")
       .str();
@@ -42,4 +80,4 @@ ArchitectureSet mapToArchitectureSet(ArrayRef<Target> Targets) {
 }
 
 } // end namespace MachO.
-} // end namespace llvm.
\ No newline at end of file
+} // end namespace llvm.