1 files changed, 33 insertions, 2 deletions

diff --git a/clang/lib/Format/Format.cpp b/clang/lib/Format/Format.cpp
index 5e8a2497fea..5fe118a7161 100644
--- a/clang/lib/Format/Format.cpp
+++ b/clang/lib/Format/Format.cpp
@@ -61,6 +61,7 @@ template <> struct ScalarEnumerationTraits<FormatStyle::LanguageKind> {
     IO.enumCase(Value, "Proto", FormatStyle::LK_Proto);
     IO.enumCase(Value, "TableGen", FormatStyle::LK_TableGen);
     IO.enumCase(Value, "TextProto", FormatStyle::LK_TextProto);
+    IO.enumCase(Value, "CSharp", FormatStyle::LK_CSharp);
   }
 };
 
@@ -287,8 +288,8 @@ template <> struct MappingTraits<FormatStyle> {
     IO.mapOptional("Language", Style.Language);
 
     if (IO.outputting()) {
-      StringRef StylesArray[] = {"LLVM",    "Google", "Chromium",
-                                 "Mozilla", "WebKit", "GNU"};
+      StringRef StylesArray[] = {"LLVM",   "Google", "Chromium", "Mozilla",
+                                 "WebKit", "GNU",    "Microsoft"};
       ArrayRef<StringRef> Styles(StylesArray);
       for (size_t i = 0, e = Styles.size(); i < e; ++i) {
         StringRef StyleName(Styles[i]);
@@ -951,6 +952,32 @@ FormatStyle getGNUStyle() {
   return Style;
 }
 
+FormatStyle getMicrosoftStyle(FormatStyle::LanguageKind Language) {
+  FormatStyle Style = getLLVMStyle();
+  Style.ColumnLimit = 120;
+  Style.TabWidth = 4;
+  Style.IndentWidth = 4;
+  Style.UseTab = FormatStyle::UT_Never;
+  Style.BreakBeforeBraces = FormatStyle::BS_Custom;
+  Style.BraceWrapping.AfterClass = true;
+  Style.BraceWrapping.AfterControlStatement = true;
+  Style.BraceWrapping.AfterEnum = true;
+  Style.BraceWrapping.AfterFunction = true;
+  Style.BraceWrapping.AfterNamespace = true;
+  Style.BraceWrapping.AfterObjCDeclaration = true;
+  Style.BraceWrapping.AfterStruct = true;
+  Style.BraceWrapping.AfterExternBlock = true;
+  Style.BraceWrapping.BeforeCatch = true;
+  Style.BraceWrapping.BeforeElse = true;
+  Style.PenaltyReturnTypeOnItsOwnLine = 1000;
+  Style.AllowShortFunctionsOnASingleLine = FormatStyle::SFS_None;
+  Style.AllowShortBlocksOnASingleLine = false;
+  Style.AllowShortCaseLabelsOnASingleLine = false;
+  Style.AllowShortIfStatementsOnASingleLine = FormatStyle::SIS_Never;
+  Style.AllowShortLoopsOnASingleLine = false;
+  return Style;
+}
+
 FormatStyle getNoStyle() {
   FormatStyle NoStyle = getLLVMStyle();
   NoStyle.DisableFormat = true;
@@ -973,6 +1000,8 @@ bool getPredefinedStyle(StringRef Name, FormatStyle::LanguageKind Language,
     *Style = getWebKitStyle();
   } else if (Name.equals_lower("gnu")) {
     *Style = getGNUStyle();
+  } else if (Name.equals_lower("microsoft")) {
+    *Style = getMicrosoftStyle(Language);
   } else if (Name.equals_lower("none")) {
     *Style = getNoStyle();
   } else {
@@ -2323,6 +2352,8 @@ static FormatStyle::LanguageKind getLanguageByFileName(StringRef FileName) {
     return FormatStyle::LK_TextProto;
   if (FileName.endswith_lower(".td"))
     return FormatStyle::LK_TableGen;
+  if (FileName.endswith_lower(".cs"))
+    return FormatStyle::LK_CSharp;
   return FormatStyle::LK_Cpp;
 }