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Diffstat (limited to 'contrib/llvm-project/clang/lib/Frontend/SARIFDiagnostic.cpp')
| -rw-r--r-- | contrib/llvm-project/clang/lib/Frontend/SARIFDiagnostic.cpp | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/contrib/llvm-project/clang/lib/Frontend/SARIFDiagnostic.cpp b/contrib/llvm-project/clang/lib/Frontend/SARIFDiagnostic.cpp new file mode 100644 index 000000000000..4e36153ed539 --- /dev/null +++ b/contrib/llvm-project/clang/lib/Frontend/SARIFDiagnostic.cpp @@ -0,0 +1,224 @@ +//===--------- SARIFDiagnostic.cpp - SARIF Diagnostic Formatting ----------===// +// +// 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 +// +//===----------------------------------------------------------------------===// + +#include "clang/Frontend/SARIFDiagnostic.h" +#include "clang/Basic/CharInfo.h" +#include "clang/Basic/DiagnosticOptions.h" +#include "clang/Basic/FileManager.h" +#include "clang/Basic/Sarif.h" +#include "clang/Basic/SourceLocation.h" +#include "clang/Basic/SourceManager.h" +#include "clang/Lex/Lexer.h" +#include "llvm/ADT/ArrayRef.h" +#include "llvm/ADT/SmallString.h" +#include "llvm/ADT/StringExtras.h" +#include "llvm/ADT/StringRef.h" +#include "llvm/Support/Casting.h" +#include "llvm/Support/ConvertUTF.h" +#include "llvm/Support/ErrorHandling.h" +#include "llvm/Support/ErrorOr.h" +#include "llvm/Support/Locale.h" +#include "llvm/Support/Path.h" +#include "llvm/Support/raw_ostream.h" +#include <algorithm> +#include <string> + +namespace clang { + +SARIFDiagnostic::SARIFDiagnostic(raw_ostream &OS, const LangOptions &LangOpts, + DiagnosticOptions *DiagOpts, + SarifDocumentWriter *Writer) + : DiagnosticRenderer(LangOpts, DiagOpts), Writer(Writer) {} + +// FIXME(llvm-project/issues/57323): Refactor Diagnostic classes. +void SARIFDiagnostic::emitDiagnosticMessage( + FullSourceLoc Loc, PresumedLoc PLoc, DiagnosticsEngine::Level Level, + StringRef Message, ArrayRef<clang::CharSourceRange> Ranges, + DiagOrStoredDiag D) { + + const auto *Diag = D.dyn_cast<const Diagnostic *>(); + + if (!Diag) + return; + + SarifRule Rule = SarifRule::create().setRuleId(std::to_string(Diag->getID())); + + Rule = addDiagnosticLevelToRule(Rule, Level); + + unsigned RuleIdx = Writer->createRule(Rule); + + SarifResult Result = + SarifResult::create(RuleIdx).setDiagnosticMessage(Message); + + if (Loc.isValid()) + Result = addLocationToResult(Result, Loc, PLoc, Ranges, *Diag); + + Writer->appendResult(Result); +} + +SarifResult SARIFDiagnostic::addLocationToResult( + SarifResult Result, FullSourceLoc Loc, PresumedLoc PLoc, + ArrayRef<CharSourceRange> Ranges, const Diagnostic &Diag) { + SmallVector<CharSourceRange> Locations = {}; + + if (PLoc.isInvalid()) { + // At least add the file name if available: + FileID FID = Loc.getFileID(); + if (FID.isValid()) { + if (OptionalFileEntryRef FE = Loc.getFileEntryRef()) { + emitFilename(FE->getName(), Loc.getManager()); + // FIXME(llvm-project/issues/57366): File-only locations + } + } + return Result; + } + + FileID CaretFileID = Loc.getExpansionLoc().getFileID(); + + for (const CharSourceRange Range : Ranges) { + // Ignore invalid ranges. + if (Range.isInvalid()) + continue; + + auto &SM = Loc.getManager(); + SourceLocation B = SM.getExpansionLoc(Range.getBegin()); + CharSourceRange ERange = SM.getExpansionRange(Range.getEnd()); + SourceLocation E = ERange.getEnd(); + bool IsTokenRange = ERange.isTokenRange(); + + std::pair<FileID, unsigned> BInfo = SM.getDecomposedLoc(B); + std::pair<FileID, unsigned> EInfo = SM.getDecomposedLoc(E); + + // If the start or end of the range is in another file, just discard + // it. + if (BInfo.first != CaretFileID || EInfo.first != CaretFileID) + continue; + + // Add in the length of the token, so that we cover multi-char + // tokens. + unsigned TokSize = 0; + if (IsTokenRange) + TokSize = Lexer::MeasureTokenLength(E, SM, LangOpts); + + FullSourceLoc BF(B, SM), EF(E, SM); + SourceLocation BeginLoc = SM.translateLineCol( + BF.getFileID(), BF.getLineNumber(), BF.getColumnNumber()); + SourceLocation EndLoc = SM.translateLineCol( + EF.getFileID(), EF.getLineNumber(), EF.getColumnNumber() + TokSize); + + Locations.push_back( + CharSourceRange{SourceRange{BeginLoc, EndLoc}, /* ITR = */ false}); + // FIXME: Additional ranges should use presumed location in both + // Text and SARIF diagnostics. + } + + auto &SM = Loc.getManager(); + auto FID = PLoc.getFileID(); + // Visual Studio 2010 or earlier expects column number to be off by one. + unsigned int ColNo = (LangOpts.MSCompatibilityVersion && + !LangOpts.isCompatibleWithMSVC(LangOptions::MSVC2012)) + ? PLoc.getColumn() - 1 + : PLoc.getColumn(); + SourceLocation DiagLoc = SM.translateLineCol(FID, PLoc.getLine(), ColNo); + + // FIXME(llvm-project/issues/57366): Properly process #line directives. + Locations.push_back( + CharSourceRange{SourceRange{DiagLoc, DiagLoc}, /* ITR = */ false}); + + return Result.setLocations(Locations); +} + +SarifRule +SARIFDiagnostic::addDiagnosticLevelToRule(SarifRule Rule, + DiagnosticsEngine::Level Level) { + auto Config = SarifReportingConfiguration::create(); + + switch (Level) { + case DiagnosticsEngine::Note: + Config = Config.setLevel(SarifResultLevel::Note); + break; + case DiagnosticsEngine::Remark: + Config = Config.setLevel(SarifResultLevel::None); + break; + case DiagnosticsEngine::Warning: + Config = Config.setLevel(SarifResultLevel::Warning); + break; + case DiagnosticsEngine::Error: + Config = Config.setLevel(SarifResultLevel::Error).setRank(50); + break; + case DiagnosticsEngine::Fatal: + Config = Config.setLevel(SarifResultLevel::Error).setRank(100); + break; + case DiagnosticsEngine::Ignored: + assert(false && "Invalid diagnostic type"); + } + + return Rule.setDefaultConfiguration(Config); +} + +llvm::StringRef SARIFDiagnostic::emitFilename(StringRef Filename, + const SourceManager &SM) { + if (DiagOpts->AbsolutePath) { + auto File = SM.getFileManager().getOptionalFileRef(Filename); + if (File) { + // We want to print a simplified absolute path, i. e. without "dots". + // + // The hardest part here are the paths like "<part1>/<link>/../<part2>". + // On Unix-like systems, we cannot just collapse "<link>/..", because + // paths are resolved sequentially, and, thereby, the path + // "<part1>/<part2>" may point to a different location. That is why + // we use FileManager::getCanonicalName(), which expands all indirections + // with llvm::sys::fs::real_path() and caches the result. + // + // On the other hand, it would be better to preserve as much of the + // original path as possible, because that helps a user to recognize it. + // real_path() expands all links, which is sometimes too much. Luckily, + // on Windows we can just use llvm::sys::path::remove_dots(), because, + // on that system, both aforementioned paths point to the same place. +#ifdef _WIN32 + SmallString<256> TmpFilename = File->getName(); + llvm::sys::fs::make_absolute(TmpFilename); + llvm::sys::path::native(TmpFilename); + llvm::sys::path::remove_dots(TmpFilename, /* remove_dot_dot */ true); + Filename = StringRef(TmpFilename.data(), TmpFilename.size()); +#else + Filename = SM.getFileManager().getCanonicalName(*File); +#endif + } + } + + return Filename; +} + +/// Print out the file/line/column information and include trace. +/// +/// This method handlen the emission of the diagnostic location information. +/// This includes extracting as much location information as is present for +/// the diagnostic and printing it, as well as any include stack or source +/// ranges necessary. +void SARIFDiagnostic::emitDiagnosticLoc(FullSourceLoc Loc, PresumedLoc PLoc, + DiagnosticsEngine::Level Level, + ArrayRef<CharSourceRange> Ranges) { + assert(false && "Not implemented in SARIF mode"); +} + +void SARIFDiagnostic::emitIncludeLocation(FullSourceLoc Loc, PresumedLoc PLoc) { + assert(false && "Not implemented in SARIF mode"); +} + +void SARIFDiagnostic::emitImportLocation(FullSourceLoc Loc, PresumedLoc PLoc, + StringRef ModuleName) { + assert(false && "Not implemented in SARIF mode"); +} + +void SARIFDiagnostic::emitBuildingModuleLocation(FullSourceLoc Loc, + PresumedLoc PLoc, + StringRef ModuleName) { + assert(false && "Not implemented in SARIF mode"); +} +} // namespace clang |