clang-format: Format segments of builder-type calls one per line.

This fixes llvm.org/PR14818.

Before:
  return llvm::StringSwitch<Reference::Kind>(name)
             .StartsWith(".eh_frame_hdr", ORDER_EH_FRAMEHDR)
             .StartsWith(".eh_frame", ORDER_EH_FRAME)
             .StartsWith(".init", ORDER_INIT).StartsWith(".fini", ORDER_FINI)
             .StartsWith(".hash", ORDER_HASH).Default(ORDER_TEXT);

After:
  return llvm::StringSwitch<Reference::Kind>(name)
             .StartsWith(".eh_frame_hdr", ORDER_EH_FRAMEHDR)
             .StartsWith(".eh_frame", ORDER_EH_FRAME)
             .StartsWith(".init", ORDER_INIT)
             .StartsWith(".fini", ORDER_FINI)
             .StartsWith(".hash", ORDER_HASH)
             .Default(ORDER_TEXT);

llvm-svn: 189353

1 files changed, 8 insertions, 0 deletions

diff --git a/clang/lib/Format/FormatToken.h b/clang/lib/Format/FormatToken.h
index 150a9755e22..62b0ba6adf2 100644
--- a/clang/lib/Format/FormatToken.h
+++ b/clang/lib/Format/FormatToken.h
@@ -257,6 +257,12 @@ struct FormatToken {
            Type == TT_TemplateCloser;
   }
 
+  /// \brief Returns \c true if this is a "." or "->" accessing a member.
+  bool isMemberAccess() const {
+    return isOneOf(tok::arrow, tok::period) &&
+           Type != TT_DesignatedInitializerPeriod;
+  }
+
   bool isUnaryOperator() const {
     switch (Tok.getKind()) {
     case tok::plus:
@@ -272,10 +278,12 @@ struct FormatToken {
       return false;
     }
   }
+
   bool isBinaryOperator() const {
     // Comma is a binary operator, but does not behave as such wrt. formatting.
     return getPrecedence() > prec::Comma;
   }
+
   bool isTrailingComment() const {
     return is(tok::comment) && (!Next || Next->NewlinesBefore > 0);
   }