1 //===- SourceCoverageView.h - Code coverage view for source code ----------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This class implements rendering for code coverage of source code.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_COV_SOURCECOVERAGEVIEW_H
15 #define LLVM_COV_SOURCECOVERAGEVIEW_H
17 #include "CoverageViewOptions.h"
18 #include "SourceCoverageDataManager.h"
19 #include "llvm/ProfileData/CoverageMapping.h"
20 #include "llvm/Support/MemoryBuffer.h"
25 class SourceCoverageView;
27 /// \brief A view that represents a macro or include expansion
28 struct ExpansionView {
29 coverage::CounterMappingRegion Region;
30 std::unique_ptr<SourceCoverageView> View;
32 ExpansionView(const coverage::CounterMappingRegion &Region,
33 std::unique_ptr<SourceCoverageView> View)
34 : Region(Region), View(std::move(View)) {}
35 ExpansionView(ExpansionView &&RHS)
36 : Region(std::move(RHS.Region)), View(std::move(RHS.View)) {}
37 ExpansionView &operator=(ExpansionView &&RHS) {
38 Region = std::move(RHS.Region);
39 View = std::move(RHS.View);
43 unsigned getLine() const { return Region.LineStart; }
44 unsigned getStartCol() const { return Region.ColumnStart; }
45 unsigned getEndCol() const { return Region.ColumnEnd; }
47 friend bool operator<(const ExpansionView &LHS, const ExpansionView &RHS) {
48 return LHS.Region.startLoc() < RHS.Region.startLoc();
52 /// \brief A view that represents a function instantiation
53 struct InstantiationView {
54 StringRef FunctionName;
56 std::unique_ptr<SourceCoverageView> View;
58 InstantiationView(StringRef FunctionName, unsigned Line,
59 std::unique_ptr<SourceCoverageView> View)
60 : FunctionName(FunctionName), Line(Line), View(std::move(View)) {}
61 InstantiationView(InstantiationView &&RHS)
62 : FunctionName(std::move(RHS.FunctionName)), Line(std::move(RHS.Line)),
63 View(std::move(RHS.View)) {}
64 InstantiationView &operator=(InstantiationView &&RHS) {
65 FunctionName = std::move(RHS.FunctionName);
66 Line = std::move(RHS.Line);
67 View = std::move(RHS.View);
71 friend bool operator<(const InstantiationView &LHS,
72 const InstantiationView &RHS) {
73 return LHS.Line < RHS.Line;
77 /// \brief A code coverage view of a specific source file.
78 /// It can have embedded coverage views.
79 class SourceCoverageView {
81 /// \brief Coverage information for a single line.
82 struct LineCoverageInfo {
83 uint64_t ExecutionCount;
87 LineCoverageInfo() : ExecutionCount(0), RegionCount(0), Mapped(false) {}
89 bool isMapped() const { return Mapped; }
91 bool hasMultipleRegions() const { return RegionCount > 1; }
93 void addRegionStartCount(uint64_t Count) {
95 ExecutionCount = Count;
99 void addRegionCount(uint64_t Count) {
102 ExecutionCount = Count;
106 const MemoryBuffer &File;
107 const CoverageViewOptions &Options;
108 std::unique_ptr<SourceCoverageDataManager> RegionManager;
109 std::vector<ExpansionView> ExpansionSubViews;
110 std::vector<InstantiationView> InstantiationSubViews;
112 /// \brief Render a source line with highlighting.
113 void renderLine(raw_ostream &OS, StringRef Line, int64_t LineNumber,
114 const CoverageSegment *WrappedSegment,
115 ArrayRef<const CoverageSegment *> Segments,
116 unsigned ExpansionCol);
118 void renderIndent(raw_ostream &OS, unsigned Level);
120 void renderViewDivider(unsigned Offset, unsigned Length, raw_ostream &OS);
122 /// \brief Render the line's execution count column.
123 void renderLineCoverageColumn(raw_ostream &OS, const LineCoverageInfo &Line);
125 /// \brief Render the line number column.
126 void renderLineNumberColumn(raw_ostream &OS, unsigned LineNo);
128 /// \brief Render all the region's execution counts on a line.
129 void renderRegionMarkers(raw_ostream &OS,
130 ArrayRef<const CoverageSegment *> Segments);
132 static const unsigned LineCoverageColumnWidth = 7;
133 static const unsigned LineNumberColumnWidth = 5;
136 SourceCoverageView(const MemoryBuffer &File,
137 const CoverageViewOptions &Options)
138 : File(File), Options(Options) {}
140 const CoverageViewOptions &getOptions() const { return Options; }
142 /// \brief Add an expansion subview to this view.
143 void addExpansion(const coverage::CounterMappingRegion &Region,
144 std::unique_ptr<SourceCoverageView> View) {
145 ExpansionSubViews.emplace_back(Region, std::move(View));
148 /// \brief Add a function instantiation subview to this view.
149 void addInstantiation(StringRef FunctionName, unsigned Line,
150 std::unique_ptr<SourceCoverageView> View) {
151 InstantiationSubViews.emplace_back(FunctionName, Line, std::move(View));
154 /// \brief Print the code coverage information for a specific
155 /// portion of a source file to the output stream.
156 void render(raw_ostream &OS, bool WholeFile, unsigned IndentLevel = 0);
158 /// \brief Load the coverage information required for rendering
159 /// from the mapping regions in the data manager.
160 void load(std::unique_ptr<SourceCoverageDataManager> Data) {
161 RegionManager = std::move(Data);
167 #endif // LLVM_COV_SOURCECOVERAGEVIEW_H