1 files changed, 22 insertions, 1 deletions
diff --git a/include/lldb/Target/MemoryRegionInfo.h b/include/lldb/Target/MemoryRegionInfo.h
index be0cfa429b8f..0824b2442acc 100644
--- a/include/lldb/Target/MemoryRegionInfo.h
+++ b/include/lldb/Target/MemoryRegionInfo.h
@@ -11,8 +11,9 @@
 #ifndef lldb_MemoryRegionInfo_h
 #define lldb_MemoryRegionInfo_h
 
-#include "lldb/Core/ConstString.h"
 #include "lldb/Core/RangeMap.h"
+#include "llvm/Support/FormatProviders.h"
+#include "lldb/Utility/ConstString.h"
 #include "lldb/Utility/Range.h"
 
 namespace lldb_private {
@@ -100,4 +101,24 @@ protected:
 };
 }
 
+namespace llvm {
+template <>
+struct format_provider<lldb_private::MemoryRegionInfo::OptionalBool> {
+  static void format(const lldb_private::MemoryRegionInfo::OptionalBool &B,
+                     raw_ostream &OS, StringRef Options) {
+    switch(B) {
+    case lldb_private::MemoryRegionInfo::eNo:
+      OS << "no";
+      return;
+    case lldb_private::MemoryRegionInfo::eYes:
+      OS << "yes";
+      return;
+    case lldb_private::MemoryRegionInfo::eDontKnow:
+      OS << "don't know";
+      return;
+    }
+  }
+};
+}
+
 #endif // #ifndef lldb_MemoryRegionInfo_h