[llvm-cov] Add support for creating html reports

Based on a patch by Harlan Haskins!

Differential Revision: http://reviews.llvm.org/D18278

llvm-svn: 274688

llvm/tools/llvm-cov/SourceCoverageViewHTML.h

@@ -0,0 +1,83 @@
+//===- SourceCoverageViewHTML.h - A html code coverage view ---------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file This file defines the interface to the html coverage renderer.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_COV_SOURCECOVERAGEVIEWHTML_H
+#define LLVM_COV_SOURCECOVERAGEVIEWHTML_H
+
+#include "SourceCoverageView.h"
+
+namespace llvm {
+
+/// \brief A coverage printer for html output.
+class CoveragePrinterHTML : public CoveragePrinter {
+public:
+  Expected<OwnedStream> createViewFile(StringRef Path,
+                                       bool InToplevel) override;
+
+  void closeViewFile(OwnedStream OS) override;
+
+  Error createIndexFile(ArrayRef<StringRef> SourceFiles) override;
+
+  CoveragePrinterHTML(const CoverageViewOptions &Opts)
+      : CoveragePrinter(Opts) {}
+};
+
+/// \brief A code coverage view which supports html-based rendering.
+class SourceCoverageViewHTML : public SourceCoverageView {
+  void renderViewHeader(raw_ostream &OS) override;
+
+  void renderViewFooter(raw_ostream &OS) override;
+
+  void renderSourceName(raw_ostream &OS) override;
+
+  void renderLinePrefix(raw_ostream &OS, unsigned ViewDepth) override;
+
+  void renderLineSuffix(raw_ostream &OS, unsigned ViewDepth) override;
+
+  void renderViewDivider(raw_ostream &OS, unsigned ViewDepth) override;
+
+  void renderLine(raw_ostream &OS, LineRef L,
+                  const coverage::CoverageSegment *WrappedSegment,
+                  CoverageSegmentArray Segments, unsigned ExpansionCol,
+                  unsigned ViewDepth) override;
+
+  void renderExpansionSite(raw_ostream &OS, LineRef L,
+                           const coverage::CoverageSegment *WrappedSegment,
+                           CoverageSegmentArray Segments, unsigned ExpansionCol,
+                           unsigned ViewDepth) override;
+
+  void renderExpansionView(raw_ostream &OS, ExpansionView &ESV,
+                           unsigned ViewDepth) override;
+
+  void renderInstantiationView(raw_ostream &OS, InstantiationView &ISV,
+                               unsigned ViewDepth) override;
+
+  void renderLineCoverageColumn(raw_ostream &OS,
+                                const LineCoverageStats &Line) override;
+
+  void renderLineNumberColumn(raw_ostream &OS, unsigned LineNo) override;
+
+  void renderRegionMarkers(raw_ostream &OS, CoverageSegmentArray Segments,
+                           unsigned ViewDepth) override;
+
+public:
+  SourceCoverageViewHTML(StringRef SourceName, const MemoryBuffer &File,
+                         const CoverageViewOptions &Options,
+                         coverage::CoverageData &&CoverageInfo)
+      : SourceCoverageView(SourceName, File, Options, std::move(CoverageInfo)) {
+  }
+};
+
+} // namespace llvm
+
+#endif // LLVM_COV_SOURCECOVERAGEVIEWHTML_H