| //===--- UnwrappedLineFormatter.h - Format C++ code -------------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| /// |
| /// \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 |