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llvm-cov: Return unique_ptrs instead of filling objects (NFC)

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Having create* functions return the object they create is more
readable than using an in-out parameter.

llvm-svn: 218139
This commit is contained in:
Justin Bogner 2014-09-19 19:07:17 +00:00
parent c36e098ed2
commit eaae74620a
1 changed files with 62 additions and 53 deletions
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115
tools/llvm-cov/CodeCoverage.cpp
View File

@ -103,23 +103,22 @@ public:
/// \brief Create a source view which shows coverage for an expansion
/// of a file.
void createExpansionSubView(const CountedRegion &ExpandedRegion,
const FunctionCoverageMapping &Function,
SourceCoverageView &Parent);
std::unique_ptr<SourceCoverageView>
createExpansionSubView(const CountedRegion &ExpandedRegion,
const FunctionCoverageMapping &Function);
void createExpansionSubViews(SourceCoverageView &View, unsigned ViewFileID,
void attachExpansionSubViews(SourceCoverageView &View, unsigned ViewFileID,
const FunctionCoverageMapping &Function);
/// \brief Create a source view which shows coverage for an instantiation
/// of a funciton.
void createInstantiationSubView(StringRef SourceFile,
const FunctionCoverageMapping &Function,
SourceCoverageView &View);
std::unique_ptr<SourceCoverageView>
createInstantiationSubView(StringRef SourceFile,
const FunctionCoverageMapping &Function);
/// \brief Create the main source view of a particular source file.
/// Return true if this particular source file is not covered.
bool
createSourceFileView(StringRef SourceFile, SourceCoverageView &View,
std::unique_ptr<SourceCoverageView>
createSourceFileView(StringRef SourceFile,
ArrayRef<FunctionCoverageMapping> FunctionMappingRecords,
bool UseOnlyRegionsInMainFile = false);
@ -244,26 +243,26 @@ CodeCoverageTool::findMainViewFileID(const FunctionCoverageMapping &Function,
return true;
}
void CodeCoverageTool::createExpansionSubView(
std::unique_ptr<SourceCoverageView> CodeCoverageTool::createExpansionSubView(
const CountedRegion &ExpandedRegion,
const FunctionCoverageMapping &Function, SourceCoverageView &Parent) {
const FunctionCoverageMapping &Function) {
auto SourceBuffer =
getSourceFile(Function.Filenames[ExpandedRegion.ExpandedFileID]);
if (!SourceBuffer)
return;
auto SubView = llvm::make_unique<SourceCoverageView>(SourceBuffer.get(),
Parent.getOptions());
return nullptr;
auto RegionManager = llvm::make_unique<SourceCoverageDataManager>();
for (const auto &CR : Function.CountedRegions) {
if (CR.FileID == ExpandedRegion.ExpandedFileID)
RegionManager->insert(CR);
}
auto SubView = llvm::make_unique<SourceCoverageView>(SourceBuffer.get(),
ViewOpts);
SubView->load(std::move(RegionManager));
createExpansionSubViews(*SubView, ExpandedRegion.ExpandedFileID, Function);
Parent.addExpansion(ExpandedRegion, std::move(SubView));
attachExpansionSubViews(*SubView, ExpandedRegion.ExpandedFileID, Function);
return SubView;
}
void CodeCoverageTool::createExpansionSubViews(
void CodeCoverageTool::attachExpansionSubViews(
SourceCoverageView &View, unsigned ViewFileID,
const FunctionCoverageMapping &Function) {
if (!ViewOpts.ShowExpandedRegions)
@ -273,36 +272,50 @@ void CodeCoverageTool::createExpansionSubViews(
continue;
if (CR.FileID != ViewFileID)
continue;
createExpansionSubView(CR, Function, View);
auto SubView = createExpansionSubView(CR, Function);
if (SubView)
View.addExpansion(CR, std::move(SubView));
}
}
void CodeCoverageTool::createInstantiationSubView(
StringRef SourceFile, const FunctionCoverageMapping &Function,
SourceCoverageView &View) {
std::unique_ptr<SourceCoverageView>
CodeCoverageTool::createInstantiationSubView(
StringRef SourceFile, const FunctionCoverageMapping &Function) {
auto RegionManager = llvm::make_unique<SourceCoverageDataManager>();
SmallSet<unsigned, 8> InterestingFileIDs;
if (!gatherInterestingFileIDs(SourceFile, Function, InterestingFileIDs))
return;
return nullptr;
// Get the interesting regions
for (const auto &CR : Function.CountedRegions) {
if (InterestingFileIDs.count(CR.FileID))
RegionManager->insert(CR);
}
View.load(std::move(RegionManager));
auto SourceBuffer = getSourceFile(SourceFile);
if (!SourceBuffer)
return nullptr;
auto SubView = llvm::make_unique<SourceCoverageView>(SourceBuffer.get(),
ViewOpts);
SubView->load(std::move(RegionManager));
unsigned MainFileID;
if (findMainViewFileID(SourceFile, Function, MainFileID))
return;
createExpansionSubViews(View, MainFileID, Function);
if (!findMainViewFileID(SourceFile, Function, MainFileID))
attachExpansionSubViews(*SubView, MainFileID, Function);
return SubView;
}
bool CodeCoverageTool::createSourceFileView(
StringRef SourceFile, SourceCoverageView &View,
std::unique_ptr<SourceCoverageView> CodeCoverageTool::createSourceFileView(
StringRef SourceFile,
ArrayRef<FunctionCoverageMapping> FunctionMappingRecords,
bool UseOnlyRegionsInMainFile) {
auto RegionManager = llvm::make_unique<SourceCoverageDataManager>();
FunctionInstantiationSetCollector InstantiationSetCollector;
auto SourceBuffer = getSourceFile(SourceFile);
if (!SourceBuffer)
return nullptr;
auto View =
llvm::make_unique<SourceCoverageView>(SourceBuffer.get(), ViewOpts);
for (const auto &Function : FunctionMappingRecords) {
unsigned MainFileID;
if (findMainViewFileID(SourceFile, Function, MainFileID))
@ -319,14 +332,14 @@ bool CodeCoverageTool::createSourceFileView(
RegionManager->insert(CR);
}
InstantiationSetCollector.insert(Function, MainFileID);
createExpansionSubViews(View, MainFileID, Function);
attachExpansionSubViews(*View, MainFileID, Function);
}
if (RegionManager->getCoverageSegments().empty())
return true;
View.load(std::move(RegionManager));
return nullptr;
View->load(std::move(RegionManager));
// Show instantiations
if (!ViewOpts.ShowFunctionInstantiations)
return false;
return View;
for (const auto &InstantiationSet : InstantiationSetCollector) {
if (InstantiationSet.second.size() < 2)
continue;
@ -336,16 +349,12 @@ bool CodeCoverageTool::createSourceFileView(
for (const auto &CR : Function->CountedRegions)
if (CR.FileID == FileID)
Line = std::max(CR.LineEnd, Line);
auto SourceBuffer = getSourceFile(Function->Filenames[FileID]);
if (!SourceBuffer)
continue;
auto SubView = llvm::make_unique<SourceCoverageView>(SourceBuffer.get(),
View.getOptions());
createInstantiationSubView(SourceFile, *Function, *SubView);
View.addInstantiation(Function->Name, Line, std::move(SubView));
auto SubView = createInstantiationSubView(SourceFile, *Function);
if (SubView)
View->addInstantiation(Function->Name, Line, std::move(SubView));
}
}
return false;
return View;
}
bool CodeCoverageTool::load() {
@ -609,15 +618,18 @@ int CodeCoverageTool::show(int argc, const char **argv,
if (findMainViewFileID(Function, MainFileID))
continue;
StringRef SourceFile = Function.Filenames[MainFileID];
auto SourceBuffer = getSourceFile(SourceFile);
if (!SourceBuffer)
return 1;
SourceCoverageView mainView(SourceBuffer.get(), ViewOpts);
createSourceFileView(SourceFile, mainView, Function, true);
auto mainView = createSourceFileView(SourceFile, Function, true);
if (!mainView) {
ViewOpts.colored_ostream(outs(), raw_ostream::RED)
<< "warning: Could not read coverage for '" << Function.Name
<< " from " << SourceFile;
outs() << "\n";
continue;
}
ViewOpts.colored_ostream(outs(), raw_ostream::CYAN)
<< Function.Name << " from " << SourceFile << ":";
outs() << "\n";
mainView.render(outs(), /*WholeFile=*/false);
mainView->render(outs(), /*WholeFile=*/false);
if (FunctionMappingRecords.size() > 1)
outs() << "\n";
}
@ -633,11 +645,8 @@ int CodeCoverageTool::show(int argc, const char **argv,
SourceFiles.push_back(Filename);
for (const auto &SourceFile : SourceFiles) {
auto SourceBuffer = getSourceFile(SourceFile);
if (!SourceBuffer)
return 1;
SourceCoverageView mainView(SourceBuffer.get(), ViewOpts);
if (createSourceFileView(SourceFile, mainView, FunctionMappingRecords)) {
auto mainView = createSourceFileView(SourceFile, FunctionMappingRecords);
if (!mainView) {
ViewOpts.colored_ostream(outs(), raw_ostream::RED)
<< "warning: The file '" << SourceFile << "' isn't covered.";
outs() << "\n";
@ -648,7 +657,7 @@ int CodeCoverageTool::show(int argc, const char **argv,
ViewOpts.colored_ostream(outs(), raw_ostream::CYAN) << SourceFile << ":";
outs() << "\n";
}
mainView.render(outs(), /*Wholefile=*/true);
mainView->render(outs(), /*Wholefile=*/true);
if (SourceFiles.size() > 1)
outs() << "\n";
}