[PATCH] D48063: [clang-format] Discourage breaks in submessage entries, hard rule

[Krasimir Georgiev via Phabricator via cfe-commits]

krasimir created this revision.
Herald added a subscriber: cfe-commits.

This is an alternative to https://reviews.llvm.org/D48034.


Repository:
  rC Clang

https://reviews.llvm.org/D48063

Files:
  lib/Format/TokenAnnotator.cpp
  unittests/Format/FormatTestTextProto.cpp


Index: unittests/Format/FormatTestTextProto.cpp
===================================================================
--- unittests/Format/FormatTestTextProto.cpp
+++ unittests/Format/FormatTestTextProto.cpp
@@ -485,8 +485,15 @@
   verifyFormat("keys: []");
   verifyFormat("keys: [ 1 ]");
   verifyFormat("keys: [ 'ala', 'bala' ]");
-  verifyFormat("keys:\n"
-               "    [ 'ala', 'bala', 'porto', 'kala', 'too', 'long', 'ng' ]");
+  verifyFormat("keys: [\n"
+               "  'ala',\n"
+               "  'bala',\n"
+               "  'porto',\n"
+               "  'kala',\n"
+               "  'too',\n"
+               "  'long',\n"
+               "  'ng'\n"
+               "]");
   verifyFormat("key: item\n"
                "keys: [\n"
                "  'ala',\n"
@@ -670,5 +677,23 @@
                "}");
 }
 
+TEST_F(FormatTestTextProto, TODO) {
+  verifyFormat("submessage: {\n"
+               "  key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
+               "}");
+  verifyFormat("submessage {\n"
+               "  key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
+               "}");
+  verifyFormat("submessage: <\n"
+               "  key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
+               ">");
+  verifyFormat("submessage <\n"
+               "  key: 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
+               ">");
+  verifyFormat("submessage: [\n"
+               "  'eyaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'\n"
+               "]");
+}
+
 } // end namespace tooling
 } // end namespace clang
Index: lib/Format/TokenAnnotator.cpp
===================================================================
--- lib/Format/TokenAnnotator.cpp
+++ lib/Format/TokenAnnotator.cpp
@@ -3101,10 +3101,16 @@
       !Right.isOneOf(TT_CtorInitializerColon, TT_InlineASMColon))
     return false;
   if (Left.is(tok::colon) && Left.isOneOf(TT_DictLiteral, TT_ObjCMethodExpr)) {
-    if ((Style.Language == FormatStyle::LK_Proto ||
-         Style.Language == FormatStyle::LK_TextProto) &&
-        !Style.AlwaysBreakBeforeMultilineStrings && Right.isStringLiteral())
-      return false;
+    if (Style.Language == FormatStyle::LK_Proto ||
+         Style.Language == FormatStyle::LK_TextProto) {
+      if (!Style.AlwaysBreakBeforeMultilineStrings && Right.isStringLiteral())
+        return false;
+      if ((Right.is(tok::l_brace) || Right.is(tok::less)) &&
+          Right.is(TT_DictLiteral))
+        return false;
+      if (Right.is(TT_ArrayInitializerLSquare))
+        return false;
+    }
     return true;
   }
   if (Right.is(tok::r_square) && Right.MatchingParen &&


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