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-rw-r--r--clang/lib/Format/TokenAnnotator.cpp7
-rw-r--r--clang/unittests/Format/FormatTestObjC.cpp3
2 files changed, 10 insertions, 0 deletions
diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 60244924079..49e21520b70 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -2272,6 +2272,13 @@ unsigned TokenAnnotator::splitPenalty(const AnnotatedLine &Line,
if (Left.is(tok::colon) && Left.is(TT_ObjCMethodExpr))
return Line.MightBeFunctionDecl ? 50 : 500;
+ // In Objective-C type declarations, avoid breaking after the category's
+ // open paren (we'll prefer breaking after the protocol list's opening
+ // angle bracket, if present).
+ if (Line.Type == LT_ObjCDecl && Left.is(tok::l_paren) && Left.Previous &&
+ Left.Previous->isOneOf(tok::identifier, tok::greater))
+ return 500;
+
if (Left.is(tok::l_paren) && InFunctionDecl &&
Style.AlignAfterOpenBracket != FormatStyle::BAS_DontAlign)
return 100;
diff --git a/clang/unittests/Format/FormatTestObjC.cpp b/clang/unittests/Format/FormatTestObjC.cpp
index 9c8f252143f..b878d7886e1 100644
--- a/clang/unittests/Format/FormatTestObjC.cpp
+++ b/clang/unittests/Format/FormatTestObjC.cpp
@@ -334,6 +334,9 @@ TEST_F(FormatTestObjC, FormatObjCInterface) {
" ccccccccccccc, ccccccccccccc,\n"
" ccccccccccccc, ccccccccccccc> {\n"
"}");
+ verifyFormat("@interface ccccccccccccc (ccccccccccc) <\n"
+ " ccccccccccccc> {\n"
+ "}");
Style.ObjCBinPackProtocolList = FormatStyle::BPS_Never;
verifyFormat("@interface ddddddddddddd () <\n"
" ddddddddddddd,\n"
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