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|
//===- SourceCoverageViewText.cpp - A text-based code coverage view -------===//
//
// 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 This file implements the text-based coverage renderer.
///
//===----------------------------------------------------------------------===//
#include "SourceCoverageViewText.h"
#include "CoverageReport.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/Path.h"
#include <optional>
using namespace llvm;
Expected<CoveragePrinter::OwnedStream>
CoveragePrinterText::createViewFile(StringRef Path, bool InToplevel) {
return createOutputStream(Path, "txt", InToplevel);
}
void CoveragePrinterText::closeViewFile(OwnedStream OS) {
OS->operator<<('\n');
}
Error CoveragePrinterText::createIndexFile(
ArrayRef<std::string> SourceFiles, const CoverageMapping &Coverage,
const CoverageFiltersMatchAll &Filters) {
auto OSOrErr = createOutputStream("index", "txt", /*InToplevel=*/true);
if (Error E = OSOrErr.takeError())
return E;
auto OS = std::move(OSOrErr.get());
raw_ostream &OSRef = *OS.get();
CoverageReport Report(Opts, Coverage);
Report.renderFileReports(OSRef, SourceFiles, Filters);
Opts.colored_ostream(OSRef, raw_ostream::CYAN) << "\n"
<< Opts.getLLVMVersionString();
return Error::success();
}
struct CoveragePrinterTextDirectory::Reporter : public DirectoryCoverageReport {
CoveragePrinterTextDirectory &Printer;
Reporter(CoveragePrinterTextDirectory &Printer,
const coverage::CoverageMapping &Coverage,
const CoverageFiltersMatchAll &Filters)
: DirectoryCoverageReport(Printer.Opts, Coverage, Filters),
Printer(Printer) {}
Error generateSubDirectoryReport(SubFileReports &&SubFiles,
SubDirReports &&SubDirs,
FileCoverageSummary &&SubTotals) override {
auto &LCPath = SubTotals.Name;
assert(Options.hasOutputDirectory() &&
"No output directory for index file");
SmallString<128> OSPath = LCPath;
sys::path::append(OSPath, "index");
auto OSOrErr = Printer.createOutputStream(OSPath, "txt",
/*InToplevel=*/false);
if (auto E = OSOrErr.takeError())
return E;
auto OS = std::move(OSOrErr.get());
raw_ostream &OSRef = *OS.get();
std::vector<FileCoverageSummary> Reports;
for (auto &&SubDir : SubDirs)
Reports.push_back(std::move(SubDir.second.first));
for (auto &&SubFile : SubFiles)
Reports.push_back(std::move(SubFile.second));
CoverageReport Report(Options, Coverage);
Report.renderFileReports(OSRef, Reports, SubTotals, Filters.empty());
Options.colored_ostream(OSRef, raw_ostream::CYAN)
<< "\n"
<< Options.getLLVMVersionString();
return Error::success();
}
};
Error CoveragePrinterTextDirectory::createIndexFile(
ArrayRef<std::string> SourceFiles, const CoverageMapping &Coverage,
const CoverageFiltersMatchAll &Filters) {
if (SourceFiles.size() <= 1)
return CoveragePrinterText::createIndexFile(SourceFiles, Coverage, Filters);
Reporter Report(*this, Coverage, Filters);
auto TotalsOrErr = Report.prepareDirectoryReports(SourceFiles);
if (auto E = TotalsOrErr.takeError())
return E;
auto &LCPath = TotalsOrErr->Name;
auto TopIndexFilePath =
getOutputPath("index", "txt", /*InToplevel=*/true, /*Relative=*/false);
auto LCPIndexFilePath =
getOutputPath((LCPath + "index").str(), "txt", /*InToplevel=*/false,
/*Relative=*/false);
return errorCodeToError(
sys::fs::copy_file(LCPIndexFilePath, TopIndexFilePath));
}
namespace {
static const unsigned LineCoverageColumnWidth = 7;
static const unsigned LineNumberColumnWidth = 5;
/// Get the width of the leading columns.
unsigned getCombinedColumnWidth(const CoverageViewOptions &Opts) {
return (Opts.ShowLineStats ? LineCoverageColumnWidth + 1 : 0) +
(Opts.ShowLineNumbers ? LineNumberColumnWidth + 1 : 0);
}
/// The width of the line that is used to divide between the view and
/// the subviews.
unsigned getDividerWidth(const CoverageViewOptions &Opts) {
return getCombinedColumnWidth(Opts) + 4;
}
} // anonymous namespace
void SourceCoverageViewText::renderViewHeader(raw_ostream &) {}
void SourceCoverageViewText::renderViewFooter(raw_ostream &) {}
void SourceCoverageViewText::renderSourceName(raw_ostream &OS, bool WholeFile) {
getOptions().colored_ostream(OS, raw_ostream::CYAN) << getSourceName()
<< ":\n";
}
void SourceCoverageViewText::renderLinePrefix(raw_ostream &OS,
unsigned ViewDepth) {
for (unsigned I = 0; I < ViewDepth; ++I)
OS << " |";
}
void SourceCoverageViewText::renderLineSuffix(raw_ostream &, unsigned) {}
void SourceCoverageViewText::renderViewDivider(raw_ostream &OS,
unsigned ViewDepth) {
assert(ViewDepth != 0 && "Cannot render divider at top level");
renderLinePrefix(OS, ViewDepth - 1);
OS.indent(2);
unsigned Length = getDividerWidth(getOptions());
for (unsigned I = 0; I < Length; ++I)
OS << '-';
OS << '\n';
}
void SourceCoverageViewText::renderLine(raw_ostream &OS, LineRef L,
const LineCoverageStats &LCS,
unsigned ExpansionCol,
unsigned ViewDepth) {
StringRef Line = L.Line;
unsigned LineNumber = L.LineNo;
auto *WrappedSegment = LCS.getWrappedSegment();
CoverageSegmentArray Segments = LCS.getLineSegments();
std::optional<raw_ostream::Colors> Highlight;
SmallVector<std::pair<unsigned, unsigned>, 2> HighlightedRanges;
// The first segment overlaps from a previous line, so we treat it specially.
if (WrappedSegment && !WrappedSegment->IsGapRegion &&
WrappedSegment->HasCount && WrappedSegment->Count == 0)
Highlight = raw_ostream::RED;
// Output each segment of the line, possibly highlighted.
unsigned Col = 1;
for (const auto *S : Segments) {
unsigned End = std::min(S->Col, static_cast<unsigned>(Line.size()) + 1);
colored_ostream(OS, Highlight ? *Highlight : raw_ostream::SAVEDCOLOR,
getOptions().Colors && Highlight, /*Bold=*/false,
/*BG=*/true)
<< Line.substr(Col - 1, End - Col);
if (getOptions().Debug && Highlight)
HighlightedRanges.push_back(std::make_pair(Col, End));
Col = End;
if ((!S->IsGapRegion || (Highlight && *Highlight == raw_ostream::RED)) &&
S->HasCount && S->Count == 0)
Highlight = raw_ostream::RED;
else if (Col == ExpansionCol)
Highlight = raw_ostream::CYAN;
else
Highlight = std::nullopt;
}
// Show the rest of the line.
colored_ostream(OS, Highlight ? *Highlight : raw_ostream::SAVEDCOLOR,
getOptions().Colors && Highlight, /*Bold=*/false, /*BG=*/true)
<< Line.substr(Col - 1, Line.size() - Col + 1);
OS << '\n';
if (getOptions().Debug) {
for (const auto &Range : HighlightedRanges)
errs() << "Highlighted line " << LineNumber << ", " << Range.first
<< " -> " << Range.second << '\n';
if (Highlight)
errs() << "Highlighted line " << LineNumber << ", " << Col << " -> ?\n";
}
}
void SourceCoverageViewText::renderLineCoverageColumn(
raw_ostream &OS, const LineCoverageStats &Line) {
if (!Line.isMapped()) {
OS.indent(LineCoverageColumnWidth) << '|';
return;
}
std::string C = formatCount(Line.getExecutionCount());
OS.indent(LineCoverageColumnWidth - C.size());
colored_ostream(OS, raw_ostream::MAGENTA,
Line.hasMultipleRegions() && getOptions().Colors)
<< C;
OS << '|';
}
void SourceCoverageViewText::renderLineNumberColumn(raw_ostream &OS,
unsigned LineNo) {
SmallString<32> Buffer;
raw_svector_ostream BufferOS(Buffer);
BufferOS << LineNo;
auto Str = BufferOS.str();
// Trim and align to the right.
Str = Str.substr(0, std::min(Str.size(), (size_t)LineNumberColumnWidth));
OS.indent(LineNumberColumnWidth - Str.size()) << Str << '|';
}
void SourceCoverageViewText::renderRegionMarkers(raw_ostream &OS,
const LineCoverageStats &Line,
unsigned ViewDepth) {
renderLinePrefix(OS, ViewDepth);
OS.indent(getCombinedColumnWidth(getOptions()));
CoverageSegmentArray Segments = Line.getLineSegments();
// Just consider the segments which start *and* end on this line.
if (Segments.size() > 1)
Segments = Segments.drop_back();
unsigned PrevColumn = 1;
for (const auto *S : Segments) {
if (!S->IsRegionEntry)
continue;
if (S->Count == Line.getExecutionCount())
continue;
// Skip to the new region.
if (S->Col > PrevColumn)
OS.indent(S->Col - PrevColumn);
PrevColumn = S->Col + 1;
std::string C = formatCount(S->Count);
PrevColumn += C.size();
OS << '^' << C;
if (getOptions().Debug)
errs() << "Marker at " << S->Line << ":" << S->Col << " = "
<< formatCount(S->Count) << "\n";
}
OS << '\n';
}
void SourceCoverageViewText::renderExpansionSite(raw_ostream &OS, LineRef L,
const LineCoverageStats &LCS,
unsigned ExpansionCol,
unsigned ViewDepth) {
renderLinePrefix(OS, ViewDepth);
OS.indent(getCombinedColumnWidth(getOptions()) + (ViewDepth == 0 ? 0 : 1));
renderLine(OS, L, LCS, ExpansionCol, ViewDepth);
}
void SourceCoverageViewText::renderExpansionView(raw_ostream &OS,
ExpansionView &ESV,
unsigned ViewDepth) {
// Render the child subview.
if (getOptions().Debug)
errs() << "Expansion at line " << ESV.getLine() << ", " << ESV.getStartCol()
<< " -> " << ESV.getEndCol() << '\n';
ESV.View->print(OS, /*WholeFile=*/false, /*ShowSourceName=*/false,
/*ShowTitle=*/false, ViewDepth + 1);
}
void SourceCoverageViewText::renderBranchView(raw_ostream &OS, BranchView &BRV,
unsigned ViewDepth) {
// Render the child subview.
if (getOptions().Debug)
errs() << "Branch at line " << BRV.getLine() << '\n';
for (const auto &R : BRV.Regions) {
double TruePercent = 0.0;
double FalsePercent = 0.0;
// FIXME: It may overflow when the data is too large, but I have not
// encountered it in actual use, and not sure whether to use __uint128_t.
uint64_t Total = R.ExecutionCount + R.FalseExecutionCount;
if (!getOptions().ShowBranchCounts && Total != 0) {
TruePercent = ((double)(R.ExecutionCount) / (double)Total) * 100.0;
FalsePercent = ((double)(R.FalseExecutionCount) / (double)Total) * 100.0;
}
renderLinePrefix(OS, ViewDepth);
OS << " Branch (" << R.LineStart << ":" << R.ColumnStart << "): [";
if (R.Folded) {
OS << "Folded - Ignored]\n";
continue;
}
colored_ostream(OS, raw_ostream::RED,
getOptions().Colors && !R.ExecutionCount,
/*Bold=*/false, /*BG=*/true)
<< "True";
if (getOptions().ShowBranchCounts)
OS << ": " << formatCount(R.ExecutionCount) << ", ";
else
OS << ": " << format("%0.2f", TruePercent) << "%, ";
colored_ostream(OS, raw_ostream::RED,
getOptions().Colors && !R.FalseExecutionCount,
/*Bold=*/false, /*BG=*/true)
<< "False";
if (getOptions().ShowBranchCounts)
OS << ": " << formatCount(R.FalseExecutionCount);
else
OS << ": " << format("%0.2f", FalsePercent) << "%";
OS << "]\n";
}
}
void SourceCoverageViewText::renderMCDCView(raw_ostream &OS, MCDCView &MRV,
unsigned ViewDepth) {
for (auto &Record : MRV.Records) {
renderLinePrefix(OS, ViewDepth);
OS << "---> MC/DC Decision Region (";
// Display Line + Column information.
const CounterMappingRegion &DecisionRegion = Record.getDecisionRegion();
OS << DecisionRegion.LineStart << ":";
OS << DecisionRegion.ColumnStart << ") to (";
OS << DecisionRegion.LineEnd << ":";
OS << DecisionRegion.ColumnEnd << ")\n";
renderLinePrefix(OS, ViewDepth);
OS << "\n";
// Display MC/DC Information.
renderLinePrefix(OS, ViewDepth);
OS << " Number of Conditions: " << Record.getNumConditions() << "\n";
for (unsigned i = 0; i < Record.getNumConditions(); i++) {
renderLinePrefix(OS, ViewDepth);
OS << " " << Record.getConditionHeaderString(i);
}
renderLinePrefix(OS, ViewDepth);
OS << "\n";
renderLinePrefix(OS, ViewDepth);
OS << " Executed MC/DC Test Vectors:\n";
renderLinePrefix(OS, ViewDepth);
OS << "\n";
renderLinePrefix(OS, ViewDepth);
OS << " ";
OS << Record.getTestVectorHeaderString();
for (unsigned i = 0; i < Record.getNumTestVectors(); i++) {
renderLinePrefix(OS, ViewDepth);
OS << Record.getTestVectorString(i);
}
renderLinePrefix(OS, ViewDepth);
OS << "\n";
for (unsigned i = 0; i < Record.getNumConditions(); i++) {
renderLinePrefix(OS, ViewDepth);
OS << Record.getConditionCoverageString(i);
}
renderLinePrefix(OS, ViewDepth);
OS << " MC/DC Coverage for Decision: ";
colored_ostream(OS, raw_ostream::RED,
getOptions().Colors && Record.getPercentCovered() < 100.0,
/*Bold=*/false, /*BG=*/true)
<< format("%0.2f", Record.getPercentCovered()) << "%";
OS << "\n";
renderLinePrefix(OS, ViewDepth);
OS << "\n";
}
}
void SourceCoverageViewText::renderInstantiationView(raw_ostream &OS,
InstantiationView &ISV,
unsigned ViewDepth) {
renderLinePrefix(OS, ViewDepth);
OS << ' ';
if (!ISV.View)
getOptions().colored_ostream(OS, raw_ostream::RED)
<< "Unexecuted instantiation: " << ISV.FunctionName << "\n";
else
ISV.View->print(OS, /*WholeFile=*/false, /*ShowSourceName=*/true,
/*ShowTitle=*/false, ViewDepth);
}
void SourceCoverageViewText::renderTitle(raw_ostream &OS, StringRef Title) {
if (getOptions().hasProjectTitle())
getOptions().colored_ostream(OS, raw_ostream::CYAN)
<< getOptions().ProjectTitle << "\n";
getOptions().colored_ostream(OS, raw_ostream::CYAN) << Title << "\n";
if (getOptions().hasCreatedTime())
getOptions().colored_ostream(OS, raw_ostream::CYAN)
<< getOptions().CreatedTimeStr << "\n";
}
void SourceCoverageViewText::renderTableHeader(raw_ostream &, unsigned,
unsigned) {}
|