//===--- UnwrappedLineFormatter.h - Format C++ code -------------*- C++ -*-===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// /// /// \file /// Implements a combinartorial exploration of all the different /// linebreaks unwrapped lines can be formatted in. /// //===----------------------------------------------------------------------===// #ifndef LLVM_CLANG_LIB_FORMAT_UNWRAPPEDLINEFORMATTER_H #define LLVM_CLANG_LIB_FORMAT_UNWRAPPEDLINEFORMATTER_H #include "ContinuationIndenter.h" #include "clang/Format/Format.h" #include <map> namespace clang { namespace format { class ContinuationIndenter; class WhitespaceManager; class UnwrappedLineFormatter { public: UnwrappedLineFormatter(ContinuationIndenter *Indenter, WhitespaceManager *Whitespaces, const FormatStyle &Style, const AdditionalKeywords &Keywords, const SourceManager &SourceMgr, FormattingAttemptStatus *Status) : Indenter(Indenter), Whitespaces(Whitespaces), Style(Style), Keywords(Keywords), SourceMgr(SourceMgr), Status(Status) {} /// Format the current block and return the penalty. unsigned format(const SmallVectorImpl<AnnotatedLine *> &Lines, bool DryRun = false, int AdditionalIndent = 0, bool FixBadIndentation = false, unsigned FirstStartColumn = 0, unsigned NextStartColumn = 0, unsigned LastStartColumn = 0); private: /// Add a new line and the required indent before the first Token /// of the \c UnwrappedLine if there was no structural parsing error. void formatFirstToken(const AnnotatedLine &Line, const AnnotatedLine *PreviousLine, const SmallVectorImpl<AnnotatedLine *> &Lines, unsigned Indent, unsigned NewlineIndent); /// Returns the column limit for a line, taking into account whether we /// need an escaped newline due to a continued preprocessor directive. unsigned getColumnLimit(bool InPPDirective, const AnnotatedLine *NextLine) const; // Cache to store the penalty of formatting a vector of AnnotatedLines // starting from a specific additional offset. Improves performance if there // are many nested blocks. std::map<std::pair<const SmallVectorImpl<AnnotatedLine *> *, unsigned>, unsigned> PenaltyCache; ContinuationIndenter *Indenter; WhitespaceManager *Whitespaces; const FormatStyle &Style; const AdditionalKeywords &Keywords; const SourceManager &SourceMgr; FormattingAttemptStatus *Status; }; } // end namespace format } // end namespace clang #endif // LLVM_CLANG_LIB_FORMAT_UNWRAPPEDLINEFORMATTER_H |