1*67e74705SXin Li //===--- AffectedRangeManager.h - Format C++ code ---------------*- C++ -*-===// 2*67e74705SXin Li // 3*67e74705SXin Li // The LLVM Compiler Infrastructure 4*67e74705SXin Li // 5*67e74705SXin Li // This file is distributed under the University of Illinois Open Source 6*67e74705SXin Li // License. See LICENSE.TXT for details. 7*67e74705SXin Li // 8*67e74705SXin Li //===----------------------------------------------------------------------===// 9*67e74705SXin Li /// 10*67e74705SXin Li /// \file 11*67e74705SXin Li /// \brief AffectedRangeManager class manages affected ranges in the code. 12*67e74705SXin Li /// 13*67e74705SXin Li //===----------------------------------------------------------------------===// 14*67e74705SXin Li 15*67e74705SXin Li #ifndef LLVM_CLANG_LIB_FORMAT_AFFECTEDRANGEMANAGER_H 16*67e74705SXin Li #define LLVM_CLANG_LIB_FORMAT_AFFECTEDRANGEMANAGER_H 17*67e74705SXin Li 18*67e74705SXin Li #include "clang/Basic/SourceManager.h" 19*67e74705SXin Li 20*67e74705SXin Li namespace clang { 21*67e74705SXin Li namespace format { 22*67e74705SXin Li 23*67e74705SXin Li struct FormatToken; 24*67e74705SXin Li class AnnotatedLine; 25*67e74705SXin Li 26*67e74705SXin Li class AffectedRangeManager { 27*67e74705SXin Li public: AffectedRangeManager(const SourceManager & SourceMgr,const ArrayRef<CharSourceRange> Ranges)28*67e74705SXin Li AffectedRangeManager(const SourceManager &SourceMgr, 29*67e74705SXin Li const ArrayRef<CharSourceRange> Ranges) 30*67e74705SXin Li : SourceMgr(SourceMgr), Ranges(Ranges.begin(), Ranges.end()) {} 31*67e74705SXin Li 32*67e74705SXin Li // Determines which lines are affected by the SourceRanges given as input. 33*67e74705SXin Li // Returns \c true if at least one line between I and E or one of their 34*67e74705SXin Li // children is affected. 35*67e74705SXin Li bool computeAffectedLines(SmallVectorImpl<AnnotatedLine *>::iterator I, 36*67e74705SXin Li SmallVectorImpl<AnnotatedLine *>::iterator E); 37*67e74705SXin Li 38*67e74705SXin Li // Returns true if 'Range' intersects with one of the input ranges. 39*67e74705SXin Li bool affectsCharSourceRange(const CharSourceRange &Range); 40*67e74705SXin Li 41*67e74705SXin Li private: 42*67e74705SXin Li // Returns true if the range from 'First' to 'Last' intersects with one of the 43*67e74705SXin Li // input ranges. 44*67e74705SXin Li bool affectsTokenRange(const FormatToken &First, const FormatToken &Last, 45*67e74705SXin Li bool IncludeLeadingNewlines); 46*67e74705SXin Li 47*67e74705SXin Li // Returns true if one of the input ranges intersect the leading empty lines 48*67e74705SXin Li // before 'Tok'. 49*67e74705SXin Li bool affectsLeadingEmptyLines(const FormatToken &Tok); 50*67e74705SXin Li 51*67e74705SXin Li // Marks all lines between I and E as well as all their children as affected. 52*67e74705SXin Li void markAllAsAffected(SmallVectorImpl<AnnotatedLine *>::iterator I, 53*67e74705SXin Li SmallVectorImpl<AnnotatedLine *>::iterator E); 54*67e74705SXin Li 55*67e74705SXin Li // Determines whether 'Line' is affected by the SourceRanges given as input. 56*67e74705SXin Li // Returns \c true if line or one if its children is affected. 57*67e74705SXin Li bool nonPPLineAffected(AnnotatedLine *Line, 58*67e74705SXin Li const AnnotatedLine *PreviousLine); 59*67e74705SXin Li 60*67e74705SXin Li const SourceManager &SourceMgr; 61*67e74705SXin Li const SmallVector<CharSourceRange, 8> Ranges; 62*67e74705SXin Li }; 63*67e74705SXin Li 64*67e74705SXin Li } // namespace format 65*67e74705SXin Li } // namespace clang 66*67e74705SXin Li 67*67e74705SXin Li #endif // LLVM_CLANG_LIB_FORMAT_AFFECTEDRANGEMANAGER_H 68