1 files changed, 44 insertions, 3 deletions
diff --git a/contrib/llvm-project/clang/lib/Format/BreakableToken.h b/contrib/llvm-project/clang/lib/Format/BreakableToken.h
index 190144ad1be9..8b9360a3335e 100644
--- a/contrib/llvm-project/clang/lib/Format/BreakableToken.h
+++ b/contrib/llvm-project/clang/lib/Format/BreakableToken.h
@@ -18,11 +18,8 @@
 #define LLVM_CLANG_LIB_FORMAT_BREAKABLETOKEN_H
 
 #include "Encoding.h"
-#include "TokenAnnotator.h"
 #include "WhitespaceManager.h"
 #include "llvm/ADT/StringSet.h"
-#include "llvm/Support/Regex.h"
-#include <utility>
 
 namespace clang {
 namespace format {
@@ -230,6 +227,11 @@ public:
   /// as a unit and is responsible for the formatting of the them.
   virtual void updateNextToken(LineState &State) const {}
 
+  /// Adds replacements that are needed when the token is broken. Such as
+  /// wrapping a JavaScript string in parentheses after it gets broken with plus
+  /// signs.
+  virtual void updateAfterBroken(WhitespaceManager &Whitespaces) const {}
+
 protected:
   BreakableToken(const FormatToken &Tok, bool InPPDirective,
                  encoding::Encoding Encoding, const FormatStyle &Style)
@@ -283,6 +285,45 @@ protected:
   unsigned UnbreakableTailLength;
 };
 
+class BreakableStringLiteralUsingOperators : public BreakableStringLiteral {
+public:
+  enum QuoteStyleType {
+    DoubleQuotes,   // The string is quoted with double quotes.
+    SingleQuotes,   // The JavaScript string is quoted with single quotes.
+    AtDoubleQuotes, // The C# verbatim string is quoted with the at sign and
+                    // double quotes.
+  };
+  /// Creates a breakable token for a single line string literal for C#, Java,
+  /// JavaScript, or Verilog.
+  ///
+  /// \p StartColumn specifies the column in which the token will start
+  /// after formatting.
+  BreakableStringLiteralUsingOperators(
+      const FormatToken &Tok, QuoteStyleType QuoteStyle, bool UnindentPlus,
+      unsigned StartColumn, unsigned UnbreakableTailLength, bool InPPDirective,
+      encoding::Encoding Encoding, const FormatStyle &Style);
+  unsigned getRemainingLength(unsigned LineIndex, unsigned Offset,
+                              unsigned StartColumn) const override;
+  unsigned getContentStartColumn(unsigned LineIndex, bool Break) const override;
+  void insertBreak(unsigned LineIndex, unsigned TailOffset, Split Split,
+                   unsigned ContentIndent,
+                   WhitespaceManager &Whitespaces) const override;
+  void updateAfterBroken(WhitespaceManager &Whitespaces) const override;
+
+protected:
+  // Whether braces or parentheses should be inserted around the string to form
+  // a concatenation.
+  bool BracesNeeded;
+  QuoteStyleType QuoteStyle;
+  // The braces or parentheses along with the first character which they
+  // replace, either a quote or at sign.
+  StringRef LeftBraceQuote;
+  StringRef RightBraceQuote;
+  // Width added to the left due to the added brace or parenthesis. Does not
+  // apply to the first line.
+  int ContinuationIndent;
+};
+
 class BreakableComment : public BreakableToken {
 protected:
   /// Creates a breakable token for a comment.