1 //===- SourceCoverageViewHTML.cpp - A html code coverage view -------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 /// 10 /// \file This file implements the html coverage renderer. 11 /// 12 //===----------------------------------------------------------------------===// 13 14 #include "CoverageReport.h" 15 #include "SourceCoverageViewHTML.h" 16 #include "llvm/ADT/Optional.h" 17 #include "llvm/ADT/SmallString.h" 18 #include "llvm/ADT/StringExtras.h" 19 #include "llvm/Support/FileSystem.h" 20 #include "llvm/Support/Format.h" 21 #include "llvm/Support/Path.h" 22 23 using namespace llvm; 24 25 namespace { 26 27 // Return a string with the special characters in \p Str escaped. 28 std::string escape(StringRef Str, const CoverageViewOptions &Opts) { 29 std::string Result; 30 unsigned ColNum = 0; // Record the column number. 31 for (char C : Str) { 32 ++ColNum; 33 if (C == '&') 34 Result += "&"; 35 else if (C == '<') 36 Result += "<"; 37 else if (C == '>') 38 Result += ">"; 39 else if (C == '\"') 40 Result += """; 41 else if (C == '\n' || C == '\r') { 42 Result += C; 43 ColNum = 0; 44 } else if (C == '\t') { 45 // Replace '\t' with TabSize spaces. 46 unsigned NumSpaces = Opts.TabSize - (--ColNum % Opts.TabSize); 47 for (unsigned I = 0; I < NumSpaces; ++I) 48 Result += " "; 49 ColNum += NumSpaces; 50 } else 51 Result += C; 52 } 53 return Result; 54 } 55 56 // Create a \p Name tag around \p Str, and optionally set its \p ClassName. 57 std::string tag(const std::string &Name, const std::string &Str, 58 const std::string &ClassName = "") { 59 std::string Tag = "<" + Name; 60 if (ClassName != "") 61 Tag += " class='" + ClassName + "'"; 62 return Tag + ">" + Str + "</" + Name + ">"; 63 } 64 65 // Create an anchor to \p Link with the label \p Str. 66 std::string a(const std::string &Link, const std::string &Str, 67 const std::string &TargetName = "") { 68 std::string Name = TargetName.empty() ? "" : ("name='" + TargetName + "' "); 69 return "<a " + Name + "href='" + Link + "'>" + Str + "</a>"; 70 } 71 72 const char *BeginHeader = 73 "<head>" 74 "<meta name='viewport' content='width=device-width,initial-scale=1'>" 75 "<meta charset='UTF-8'>"; 76 77 const char *CSSForCoverage = 78 R"(.red { 79 background-color: #ffd0d0; 80 } 81 .cyan { 82 background-color: cyan; 83 } 84 body { 85 font-family: -apple-system, sans-serif; 86 } 87 pre { 88 margin-top: 0px !important; 89 margin-bottom: 0px !important; 90 } 91 .source-name-title { 92 padding: 5px 10px; 93 border-bottom: 1px solid #dbdbdb; 94 background-color: #eee; 95 line-height: 35px; 96 } 97 .centered { 98 display: table; 99 margin-left: left; 100 margin-right: auto; 101 border: 1px solid #dbdbdb; 102 border-radius: 3px; 103 } 104 .expansion-view { 105 background-color: rgba(0, 0, 0, 0); 106 margin-left: 0px; 107 margin-top: 5px; 108 margin-right: 5px; 109 margin-bottom: 5px; 110 border: 1px solid #dbdbdb; 111 border-radius: 3px; 112 } 113 table { 114 border-collapse: collapse; 115 } 116 .light-row { 117 background: #ffffff; 118 border: 1px solid #dbdbdb; 119 } 120 .column-entry { 121 text-align: right; 122 } 123 .column-entry-left { 124 text-align: left; 125 } 126 .column-entry-yellow { 127 text-align: right; 128 background-color: #ffffd0; 129 } 130 .column-entry-red { 131 text-align: right; 132 background-color: #ffd0d0; 133 } 134 .column-entry-green { 135 text-align: right; 136 background-color: #d0ffd0; 137 } 138 .line-number { 139 text-align: right; 140 color: #aaa; 141 } 142 .covered-line { 143 text-align: right; 144 color: #0080ff; 145 } 146 .uncovered-line { 147 text-align: right; 148 color: #ff3300; 149 } 150 .tooltip { 151 position: relative; 152 display: inline; 153 background-color: #b3e6ff; 154 text-decoration: none; 155 } 156 .tooltip span.tooltip-content { 157 position: absolute; 158 width: 100px; 159 margin-left: -50px; 160 color: #FFFFFF; 161 background: #000000; 162 height: 30px; 163 line-height: 30px; 164 text-align: center; 165 visibility: hidden; 166 border-radius: 6px; 167 } 168 .tooltip span.tooltip-content:after { 169 content: ''; 170 position: absolute; 171 top: 100%; 172 left: 50%; 173 margin-left: -8px; 174 width: 0; height: 0; 175 border-top: 8px solid #000000; 176 border-right: 8px solid transparent; 177 border-left: 8px solid transparent; 178 } 179 :hover.tooltip span.tooltip-content { 180 visibility: visible; 181 opacity: 0.8; 182 bottom: 30px; 183 left: 50%; 184 z-index: 999; 185 } 186 th, td { 187 vertical-align: top; 188 padding: 2px 5px; 189 border-collapse: collapse; 190 border-right: solid 1px #eee; 191 border-left: solid 1px #eee; 192 } 193 td:first-child { 194 border-left: none; 195 } 196 td:last-child { 197 border-right: none; 198 } 199 )"; 200 201 const char *EndHeader = "</head>"; 202 203 const char *BeginCenteredDiv = "<div class='centered'>"; 204 205 const char *EndCenteredDiv = "</div>"; 206 207 const char *BeginSourceNameDiv = "<div class='source-name-title'>"; 208 209 const char *EndSourceNameDiv = "</div>"; 210 211 const char *BeginCodeTD = "<td class='code'>"; 212 213 const char *EndCodeTD = "</td>"; 214 215 const char *BeginPre = "<pre>"; 216 217 const char *EndPre = "</pre>"; 218 219 const char *BeginExpansionDiv = "<div class='expansion-view'>"; 220 221 const char *EndExpansionDiv = "</div>"; 222 223 const char *BeginTable = "<table>"; 224 225 const char *EndTable = "</table>"; 226 227 const char *ProjectTitleTag = "h1"; 228 229 const char *ReportTitleTag = "h2"; 230 231 const char *CreatedTimeTag = "h4"; 232 233 std::string getPathToStyle(StringRef ViewPath) { 234 std::string PathToStyle = ""; 235 std::string PathSep = sys::path::get_separator(); 236 unsigned NumSeps = ViewPath.count(PathSep); 237 for (unsigned I = 0, E = NumSeps; I < E; ++I) 238 PathToStyle += ".." + PathSep; 239 return PathToStyle + "style.css"; 240 } 241 242 void emitPrelude(raw_ostream &OS, const CoverageViewOptions &Opts, 243 const std::string &PathToStyle = "") { 244 OS << "<!doctype html>" 245 "<html>" 246 << BeginHeader; 247 248 // Link to a stylesheet if one is available. Otherwise, use the default style. 249 if (PathToStyle.empty()) 250 OS << "<style>" << CSSForCoverage << "</style>"; 251 else 252 OS << "<link rel='stylesheet' type='text/css' href='" 253 << escape(PathToStyle, Opts) << "'>"; 254 255 OS << EndHeader << "<body>"; 256 } 257 258 void emitEpilog(raw_ostream &OS) { 259 OS << "</body>" 260 << "</html>"; 261 } 262 263 } // anonymous namespace 264 265 Expected<CoveragePrinter::OwnedStream> 266 CoveragePrinterHTML::createViewFile(StringRef Path, bool InToplevel) { 267 auto OSOrErr = createOutputStream(Path, "html", InToplevel); 268 if (!OSOrErr) 269 return OSOrErr; 270 271 OwnedStream OS = std::move(OSOrErr.get()); 272 273 if (!Opts.hasOutputDirectory()) { 274 emitPrelude(*OS.get(), Opts); 275 } else { 276 std::string ViewPath = getOutputPath(Path, "html", InToplevel); 277 emitPrelude(*OS.get(), Opts, getPathToStyle(ViewPath)); 278 } 279 280 return std::move(OS); 281 } 282 283 void CoveragePrinterHTML::closeViewFile(OwnedStream OS) { 284 emitEpilog(*OS.get()); 285 } 286 287 /// Emit column labels for the table in the index. 288 static void emitColumnLabelsForIndex(raw_ostream &OS) { 289 SmallVector<std::string, 4> Columns; 290 Columns.emplace_back(tag("td", "Filename", "column-entry-left")); 291 for (const char *Label : {"Function Coverage", "Instantiation Coverage", 292 "Line Coverage", "Region Coverage"}) 293 Columns.emplace_back(tag("td", Label, "column-entry")); 294 OS << tag("tr", join(Columns.begin(), Columns.end(), "")); 295 } 296 297 std::string 298 CoveragePrinterHTML::buildLinkToFile(StringRef SF, 299 const FileCoverageSummary &FCS) const { 300 SmallString<128> LinkTextStr(sys::path::relative_path(FCS.Name)); 301 sys::path::remove_dots(LinkTextStr, /*remove_dot_dots=*/true); 302 sys::path::native(LinkTextStr); 303 std::string LinkText = escape(LinkTextStr, Opts); 304 std::string LinkTarget = 305 escape(getOutputPath(SF, "html", /*InToplevel=*/false), Opts); 306 return a(LinkTarget, LinkText); 307 } 308 309 /// Render a file coverage summary (\p FCS) in a table row. If \p IsTotals is 310 /// false, link the summary to \p SF. 311 void CoveragePrinterHTML::emitFileSummary(raw_ostream &OS, StringRef SF, 312 const FileCoverageSummary &FCS, 313 bool IsTotals) const { 314 SmallVector<std::string, 8> Columns; 315 316 // Format a coverage triple and add the result to the list of columns. 317 auto AddCoverageTripleToColumn = [&Columns](unsigned Hit, unsigned Total, 318 float Pctg) { 319 std::string S; 320 { 321 raw_string_ostream RSO{S}; 322 if (Total) 323 RSO << format("%*.2f", 7, Pctg) << "% "; 324 else 325 RSO << "- "; 326 RSO << '(' << Hit << '/' << Total << ')'; 327 } 328 const char *CellClass = "column-entry-yellow"; 329 if (Hit == Total) 330 CellClass = "column-entry-green"; 331 else if (Pctg < 80.0) 332 CellClass = "column-entry-red"; 333 Columns.emplace_back(tag("td", tag("pre", S), CellClass)); 334 }; 335 336 // Simplify the display file path, and wrap it in a link if requested. 337 std::string Filename; 338 if (IsTotals) { 339 Filename = "TOTALS"; 340 } else { 341 Filename = buildLinkToFile(SF, FCS); 342 } 343 344 Columns.emplace_back(tag("td", tag("pre", Filename))); 345 AddCoverageTripleToColumn(FCS.FunctionCoverage.Executed, 346 FCS.FunctionCoverage.NumFunctions, 347 FCS.FunctionCoverage.getPercentCovered()); 348 AddCoverageTripleToColumn(FCS.InstantiationCoverage.Executed, 349 FCS.InstantiationCoverage.NumFunctions, 350 FCS.InstantiationCoverage.getPercentCovered()); 351 AddCoverageTripleToColumn(FCS.LineCoverage.Covered, FCS.LineCoverage.NumLines, 352 FCS.LineCoverage.getPercentCovered()); 353 AddCoverageTripleToColumn(FCS.RegionCoverage.Covered, 354 FCS.RegionCoverage.NumRegions, 355 FCS.RegionCoverage.getPercentCovered()); 356 357 OS << tag("tr", join(Columns.begin(), Columns.end(), ""), "light-row"); 358 } 359 360 Error CoveragePrinterHTML::createIndexFile( 361 ArrayRef<std::string> SourceFiles, 362 const coverage::CoverageMapping &Coverage) { 363 // Emit the default stylesheet. 364 auto CSSOrErr = createOutputStream("style", "css", /*InToplevel=*/true); 365 if (Error E = CSSOrErr.takeError()) 366 return E; 367 368 OwnedStream CSS = std::move(CSSOrErr.get()); 369 CSS->operator<<(CSSForCoverage); 370 371 // Emit a file index along with some coverage statistics. 372 auto OSOrErr = createOutputStream("index", "html", /*InToplevel=*/true); 373 if (Error E = OSOrErr.takeError()) 374 return E; 375 auto OS = std::move(OSOrErr.get()); 376 raw_ostream &OSRef = *OS.get(); 377 378 assert(Opts.hasOutputDirectory() && "No output directory for index file"); 379 emitPrelude(OSRef, Opts, getPathToStyle("")); 380 381 // Emit some basic information about the coverage report. 382 if (Opts.hasProjectTitle()) 383 OSRef << tag(ProjectTitleTag, escape(Opts.ProjectTitle, Opts)); 384 OSRef << tag(ReportTitleTag, "Coverage Report"); 385 if (Opts.hasCreatedTime()) 386 OSRef << tag(CreatedTimeTag, escape(Opts.CreatedTimeStr, Opts)); 387 388 // Emit a link to some documentation. 389 OSRef << tag("p", "Click " + 390 a("http://clang.llvm.org/docs/" 391 "SourceBasedCodeCoverage.html#interpreting-reports", 392 "here") + 393 " for information about interpreting this report."); 394 395 // Emit a table containing links to reports for each file in the covmapping. 396 // Exclude files which don't contain any regions. 397 OSRef << BeginCenteredDiv << BeginTable; 398 emitColumnLabelsForIndex(OSRef); 399 FileCoverageSummary Totals("TOTALS"); 400 auto FileReports = 401 CoverageReport::prepareFileReports(Coverage, Totals, SourceFiles); 402 bool EmptyFiles = false; 403 for (unsigned I = 0, E = FileReports.size(); I < E; ++I) { 404 if (FileReports[I].FunctionCoverage.NumFunctions) 405 emitFileSummary(OSRef, SourceFiles[I], FileReports[I]); 406 else 407 EmptyFiles = true; 408 } 409 emitFileSummary(OSRef, "Totals", Totals, /*IsTotals=*/true); 410 OSRef << EndTable << EndCenteredDiv; 411 412 // Emit links to files which don't contain any functions. These are normally 413 // not very useful, but could be relevant for code which abuses the 414 // preprocessor. 415 if (EmptyFiles) { 416 OSRef << tag("p", "Files which contain no functions. (These " 417 "files contain code pulled into other files " 418 "by the preprocessor.)\n"); 419 OSRef << BeginCenteredDiv << BeginTable; 420 for (unsigned I = 0, E = FileReports.size(); I < E; ++I) 421 if (!FileReports[I].FunctionCoverage.NumFunctions) { 422 std::string Link = buildLinkToFile(SourceFiles[I], FileReports[I]); 423 OSRef << tag("tr", tag("td", tag("pre", Link)), "light-row") << '\n'; 424 } 425 OSRef << EndTable << EndCenteredDiv; 426 } 427 428 OSRef << tag("h5", escape(Opts.getLLVMVersionString(), Opts)); 429 emitEpilog(OSRef); 430 431 return Error::success(); 432 } 433 434 void SourceCoverageViewHTML::renderViewHeader(raw_ostream &OS) { 435 OS << BeginCenteredDiv << BeginTable; 436 } 437 438 void SourceCoverageViewHTML::renderViewFooter(raw_ostream &OS) { 439 OS << EndTable << EndCenteredDiv; 440 } 441 442 void SourceCoverageViewHTML::renderSourceName(raw_ostream &OS, bool WholeFile) { 443 OS << BeginSourceNameDiv << tag("pre", escape(getSourceName(), getOptions())) 444 << EndSourceNameDiv; 445 } 446 447 void SourceCoverageViewHTML::renderLinePrefix(raw_ostream &OS, unsigned) { 448 OS << "<tr>"; 449 } 450 451 void SourceCoverageViewHTML::renderLineSuffix(raw_ostream &OS, unsigned) { 452 // If this view has sub-views, renderLine() cannot close the view's cell. 453 // Take care of it here, after all sub-views have been rendered. 454 if (hasSubViews()) 455 OS << EndCodeTD; 456 OS << "</tr>"; 457 } 458 459 void SourceCoverageViewHTML::renderViewDivider(raw_ostream &, unsigned) { 460 // The table-based output makes view dividers unnecessary. 461 } 462 463 void SourceCoverageViewHTML::renderLine( 464 raw_ostream &OS, LineRef L, const coverage::CoverageSegment *WrappedSegment, 465 CoverageSegmentArray Segments, unsigned ExpansionCol, unsigned) { 466 StringRef Line = L.Line; 467 unsigned LineNo = L.LineNo; 468 469 // Steps for handling text-escaping, highlighting, and tooltip creation: 470 // 471 // 1. Split the line into N+1 snippets, where N = |Segments|. The first 472 // snippet starts from Col=1 and ends at the start of the first segment. 473 // The last snippet starts at the last mapped column in the line and ends 474 // at the end of the line. Both are required but may be empty. 475 476 SmallVector<std::string, 8> Snippets; 477 478 unsigned LCol = 1; 479 auto Snip = [&](unsigned Start, unsigned Len) { 480 Snippets.push_back(Line.substr(Start, Len)); 481 LCol += Len; 482 }; 483 484 Snip(LCol - 1, Segments.empty() ? 0 : (Segments.front()->Col - 1)); 485 486 for (unsigned I = 1, E = Segments.size(); I < E; ++I) 487 Snip(LCol - 1, Segments[I]->Col - LCol); 488 489 // |Line| + 1 is needed to avoid underflow when, e.g |Line| = 0 and LCol = 1. 490 Snip(LCol - 1, Line.size() + 1 - LCol); 491 492 // 2. Escape all of the snippets. 493 494 for (unsigned I = 0, E = Snippets.size(); I < E; ++I) 495 Snippets[I] = escape(Snippets[I], getOptions()); 496 497 // 3. Use \p WrappedSegment to set the highlight for snippet 0. Use segment 498 // 1 to set the highlight for snippet 2, segment 2 to set the highlight for 499 // snippet 3, and so on. 500 501 Optional<std::string> Color; 502 SmallVector<std::pair<unsigned, unsigned>, 2> HighlightedRanges; 503 auto Highlight = [&](const std::string &Snippet, unsigned LC, unsigned RC) { 504 if (getOptions().Debug) 505 HighlightedRanges.emplace_back(LC, RC); 506 return tag("span", Snippet, Color.getValue()); 507 }; 508 509 auto CheckIfUncovered = [](const coverage::CoverageSegment *S) { 510 return S && S->HasCount && S->Count == 0; 511 }; 512 513 if (CheckIfUncovered(WrappedSegment)) { 514 Color = "red"; 515 if (!Snippets[0].empty()) 516 Snippets[0] = Highlight(Snippets[0], 1, 1 + Snippets[0].size()); 517 } 518 519 for (unsigned I = 0, E = Segments.size(); I < E; ++I) { 520 const auto *CurSeg = Segments[I]; 521 if (CurSeg->Col == ExpansionCol) 522 Color = "cyan"; 523 else if (CheckIfUncovered(CurSeg)) 524 Color = "red"; 525 else 526 Color = None; 527 528 if (Color.hasValue()) 529 Snippets[I + 1] = Highlight(Snippets[I + 1], CurSeg->Col, 530 CurSeg->Col + Snippets[I + 1].size()); 531 } 532 533 if (Color.hasValue() && Segments.empty()) 534 Snippets.back() = Highlight(Snippets.back(), 1, 1 + Snippets.back().size()); 535 536 if (getOptions().Debug) { 537 for (const auto &Range : HighlightedRanges) { 538 errs() << "Highlighted line " << LineNo << ", " << Range.first << " -> "; 539 if (Range.second == 0) 540 errs() << "?"; 541 else 542 errs() << Range.second; 543 errs() << "\n"; 544 } 545 } 546 547 // 4. Snippets[1:N+1] correspond to \p Segments[0:N]: use these to generate 548 // sub-line region count tooltips if needed. 549 550 if (shouldRenderRegionMarkers(Segments)) { 551 // Just consider the segments which start *and* end on this line. 552 for (unsigned I = 0, E = Segments.size() - 1; I < E; ++I) { 553 const auto *CurSeg = Segments[I]; 554 if (!CurSeg->IsRegionEntry) 555 continue; 556 557 Snippets[I + 1] = 558 tag("div", Snippets[I + 1] + tag("span", formatCount(CurSeg->Count), 559 "tooltip-content"), 560 "tooltip"); 561 562 if (getOptions().Debug) 563 errs() << "Marker at " << CurSeg->Line << ":" << CurSeg->Col << " = " 564 << formatCount(CurSeg->Count) << "\n"; 565 } 566 } 567 568 OS << BeginCodeTD; 569 OS << BeginPre; 570 for (const auto &Snippet : Snippets) 571 OS << Snippet; 572 OS << EndPre; 573 574 // If there are no sub-views left to attach to this cell, end the cell. 575 // Otherwise, end it after the sub-views are rendered (renderLineSuffix()). 576 if (!hasSubViews()) 577 OS << EndCodeTD; 578 } 579 580 void SourceCoverageViewHTML::renderLineCoverageColumn( 581 raw_ostream &OS, const LineCoverageStats &Line) { 582 std::string Count = ""; 583 if (Line.isMapped()) 584 Count = tag("pre", formatCount(Line.ExecutionCount)); 585 std::string CoverageClass = 586 (Line.ExecutionCount > 0) ? "covered-line" : "uncovered-line"; 587 OS << tag("td", Count, CoverageClass); 588 } 589 590 void SourceCoverageViewHTML::renderLineNumberColumn(raw_ostream &OS, 591 unsigned LineNo) { 592 std::string LineNoStr = utostr(uint64_t(LineNo)); 593 std::string TargetName = "L" + LineNoStr; 594 OS << tag("td", a("#" + TargetName, tag("pre", LineNoStr), TargetName), 595 "line-number"); 596 } 597 598 void SourceCoverageViewHTML::renderRegionMarkers(raw_ostream &, 599 CoverageSegmentArray, 600 unsigned) { 601 // Region markers are rendered in-line using tooltips. 602 } 603 604 void SourceCoverageViewHTML::renderExpansionSite( 605 raw_ostream &OS, LineRef L, const coverage::CoverageSegment *WrappedSegment, 606 CoverageSegmentArray Segments, unsigned ExpansionCol, unsigned ViewDepth) { 607 // Render the line containing the expansion site. No extra formatting needed. 608 renderLine(OS, L, WrappedSegment, Segments, ExpansionCol, ViewDepth); 609 } 610 611 void SourceCoverageViewHTML::renderExpansionView(raw_ostream &OS, 612 ExpansionView &ESV, 613 unsigned ViewDepth) { 614 OS << BeginExpansionDiv; 615 ESV.View->print(OS, /*WholeFile=*/false, /*ShowSourceName=*/false, 616 ViewDepth + 1); 617 OS << EndExpansionDiv; 618 } 619 620 void SourceCoverageViewHTML::renderInstantiationView(raw_ostream &OS, 621 InstantiationView &ISV, 622 unsigned ViewDepth) { 623 OS << BeginExpansionDiv; 624 if (!ISV.View) 625 OS << BeginSourceNameDiv 626 << tag("pre", 627 escape("Unexecuted instantiation: " + ISV.FunctionName.str(), 628 getOptions())) 629 << EndSourceNameDiv; 630 else 631 ISV.View->print(OS, /*WholeFile=*/false, /*ShowSourceName=*/true, 632 ViewDepth); 633 OS << EndExpansionDiv; 634 } 635 636 void SourceCoverageViewHTML::renderTitle(raw_ostream &OS, StringRef Title) { 637 if (getOptions().hasProjectTitle()) 638 OS << tag(ProjectTitleTag, escape(getOptions().ProjectTitle, getOptions())); 639 OS << tag(ReportTitleTag, escape(Title, getOptions())); 640 if (getOptions().hasCreatedTime()) 641 OS << tag(CreatedTimeTag, 642 escape(getOptions().CreatedTimeStr, getOptions())); 643 } 644 645 void SourceCoverageViewHTML::renderTableHeader(raw_ostream &OS, 646 unsigned FirstUncoveredLineNo, 647 unsigned ViewDepth) { 648 std::string SourceLabel; 649 if (FirstUncoveredLineNo == 0) { 650 SourceLabel = tag("td", tag("pre", "Source")); 651 } else { 652 std::string LinkTarget = "#L" + utostr(uint64_t(FirstUncoveredLineNo)); 653 SourceLabel = 654 tag("td", tag("pre", "Source (" + 655 a(LinkTarget, "jump to first uncovered line") + 656 ")")); 657 } 658 659 renderLinePrefix(OS, ViewDepth); 660 OS << tag("td", tag("pre", "Line")) << tag("td", tag("pre", "Count")) 661 << SourceLabel; 662 renderLineSuffix(OS, ViewDepth); 663 } 664