Add style option for number of spaces before trailing comments.

In LLVM style, a single space should be enough. In Google style, two
spaces are required.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@171725 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 3 insertions, 1 deletions

diff --git a/lib/Format/Format.cpp b/lib/Format/Format.cpp
index 3dbf95c5a4..5c65c26ca6 100644
--- a/lib/Format/Format.cpp
+++ b/lib/Format/Format.cpp
@@ -77,6 +77,7 @@ FormatStyle getLLVMStyle() {
   LLVMStyle.AccessModifierOffset = -2;
   LLVMStyle.SplitTemplateClosingGreater = true;
   LLVMStyle.IndentCaseLabels = false;
+  LLVMStyle.SpacesBeforeTrailingComments = 1;
   return LLVMStyle;
 }
 
@@ -88,6 +89,7 @@ FormatStyle getGoogleStyle() {
   GoogleStyle.AccessModifierOffset = -1;
   GoogleStyle.SplitTemplateClosingGreater = false;
   GoogleStyle.IndentCaseLabels = true;
+  GoogleStyle.SpacesBeforeTrailingComments = 2;
   return GoogleStyle;
 }
 
@@ -299,7 +301,7 @@ private:
 
       unsigned Spaces = Annotations[Index].SpaceRequiredBefore ? 1 : 0;
       if (Annotations[Index].Type == TT_LineComment)
-        Spaces = 2;
+        Spaces = Style.SpacesBeforeTrailingComments;
 
       if (!DryRun)
         replaceWhitespace(Current, 0, Spaces);