clang-format: Enable formatting of protocol buffer definitions.

Almost by accident, clang-format seems to be able to format protocol
buffer definitions (https://code.google.com/p/protobuf/).

The only change is that a space is required between numeric constants
and opening square brackets (for default values). While this might in
theory be used for array subscripts (int val = 4[MyArray]), I have not
seen this pattern in practice much. If this is wrong, we can make this
smarter in the future.

llvm-svn: 189663

1 files changed, 2 insertions, 1 deletions

diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index ce837d42ccc..d2cb5a8723b 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -1206,7 +1206,8 @@ bool TokenAnnotator::spaceRequiredBetween(const AnnotatedLine &Line,
     return Left.Type == TT_ObjCArrayLiteral && Right.isNot(tok::r_square);
   if (Right.is(tok::r_square))
     return Right.Type == TT_ObjCArrayLiteral;
-  if (Right.is(tok::l_square) && Right.Type != TT_ObjCMethodExpr)
+  if (Right.is(tok::l_square) && Right.Type != TT_ObjCMethodExpr &&
+      Left.isNot(tok::numeric_constant))
     return false;
   if (Left.is(tok::colon))
     return Left.Type != TT_ObjCMethodExpr;