[clang] 329fae7 - [clang] Emit SARIF Diagnostics: Create `clang::SarifDocumentWriter` interface
Aaron Ballman via cfe-commits
cfe-commits at lists.llvm.org
Thu Jun 30 10:26:24 PDT 2022
Author: Vaibhav Yenamandra
Date: 2022-06-30T13:23:15-04:00
New Revision: 329fae7103d355e728cc326a0a9abef889ccc577
URL: https://github.com/llvm/llvm-project/commit/329fae7103d355e728cc326a0a9abef889ccc577
DIFF: https://github.com/llvm/llvm-project/commit/329fae7103d355e728cc326a0a9abef889ccc577.diff
LOG: [clang] Emit SARIF Diagnostics: Create `clang::SarifDocumentWriter` interface
Create an interface for writing SARIF documents from within clang:
The primary intent of this change is to introduce the interface
clang::SarifDocumentWriter, which allows incrementally adding
diagnostic data to a JSON backed document. The proposed interface is
not yet connected to the compiler internals, which will be covered in
future work. As such this change will not change the input/output
interface of clang.
This change also introduces the clang::FullSourceRange type that is
modeled after clang::SourceRange + clang::FullSourceLoc, this is useful
for packaging a pair of clang::SourceLocation objects with their
corresponding SourceManagers.
Previous discussions:
RFC for this change: https://lists.llvm.org/pipermail/cfe-dev/2021-March/067907.html
https://lists.llvm.org/pipermail/cfe-dev/2021-July/068480.html
SARIF Standard (2.1.0):
https://docs.oasis-open.org/sarif/sarif/v2.1.0/os/sarif-v2.1.0-os.html
Differential Revision: https://reviews.llvm.org/D109701
Added:
clang/include/clang/Basic/Sarif.h
clang/lib/Basic/Sarif.cpp
clang/unittests/Basic/SarifTest.cpp
Modified:
clang/lib/Basic/CMakeLists.txt
clang/unittests/Basic/CMakeLists.txt
Removed:
################################################################################
diff --git a/clang/include/clang/Basic/Sarif.h b/clang/include/clang/Basic/Sarif.h
new file mode 100644
index 000000000000..818d78668ff1
--- /dev/null
+++ b/clang/include/clang/Basic/Sarif.h
@@ -0,0 +1,440 @@
+//== clang/Basic/Sarif.h - SARIF Diagnostics Object Model -------*- C++ -*--==//
+//
+// 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
+/// Defines clang::SarifDocumentWriter, clang::SarifRule, clang::SarifResult.
+///
+/// The document built can be accessed as a JSON Object.
+/// Several value semantic types are also introduced which represent properties
+/// of the SARIF standard, such as 'artifact', 'result', 'rule'.
+///
+/// A SARIF (Static Analysis Results Interchange Format) document is JSON
+/// document that describes in detail the results of running static analysis
+/// tools on a project. Each (non-trivial) document consists of at least one
+/// "run", which are themselves composed of details such as:
+/// * Tool: The tool that was run
+/// * Rules: The rules applied during the tool run, represented by
+/// \c reportingDescriptor objects in SARIF
+/// * Results: The matches for the rules applied against the project(s) being
+/// evaluated, represented by \c result objects in SARIF
+///
+/// Reference:
+/// 1. <a href="https://docs.oasis-open.org/sarif/sarif/v2.1.0/os/sarif-v2.1.0-os.html">The SARIF standard</a>
+/// 2. <a href="https://docs.oasis-open.org/sarif/sarif/v2.1.0/os/sarif-v2.1.0-os.html#_Toc34317836">SARIF<pre>reportingDescriptor</pre></a>
+/// 3. <a href="https://docs.oasis-open.org/sarif/sarif/v2.1.0/os/sarif-v2.1.0-os.html#_Toc34317638">SARIF<pre>result</pre></a>
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_BASIC_SARIF_H
+#define LLVM_CLANG_BASIC_SARIF_H
+
+#include "clang/Basic/SourceLocation.h"
+#include "clang/Basic/Version.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/Optional.h"
+#include "llvm/ADT/SmallVector.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/JSON.h"
+#include <cassert>
+#include <cstddef>
+#include <cstdint>
+#include <initializer_list>
+#include <string>
+
+namespace clang {
+
+class SarifDocumentWriter;
+class SourceManager;
+
+namespace detail {
+
+/// \internal
+/// An artifact location is SARIF's way of describing the complete location
+/// of an artifact encountered during analysis. The \c artifactLocation object
+/// typically consists of a URI, and/or an index to reference the artifact it
+/// locates.
+///
+/// This builder makes an additional assumption: that every artifact encountered
+/// by \c clang will be a physical, top-level artifact. Which is why the static
+/// creation method \ref SarifArtifactLocation::create takes a mandatory URI
+/// parameter. The official standard states that either a \c URI or \c Index
+/// must be available in the object, \c clang picks the \c URI as a reasonable
+/// default, because it intends to deal in physical artifacts for now.
+///
+/// Reference:
+/// 1. <a href="https://docs.oasis-open.org/sarif/sarif/v2.1.0/os/sarif-v2.1.0-os.html#_Toc34317427">artifactLocation object</a>
+/// 2. \ref SarifArtifact
+class SarifArtifactLocation {
+private:
+ friend class clang::SarifDocumentWriter;
+
+ llvm::Optional<uint32_t> Index;
+ std::string URI;
+
+ SarifArtifactLocation() = delete;
+ explicit SarifArtifactLocation(const std::string &URI) : URI(URI) {}
+
+public:
+ static SarifArtifactLocation create(llvm::StringRef URI) {
+ return SarifArtifactLocation{URI.str()};
+ }
+
+ SarifArtifactLocation setIndex(uint32_t Idx) {
+ Index = Idx;
+ return *this;
+ }
+};
+
+/// \internal
+/// An artifact in SARIF is any object (a sequence of bytes) addressable by
+/// a URI (RFC 3986). The most common type of artifact for clang's use-case
+/// would be source files. SARIF's artifact object is described in detail in
+/// section 3.24.
+//
+/// Since every clang artifact MUST have a location (there being no nested
+/// artifacts), the creation method \ref SarifArtifact::create requires a
+/// \ref SarifArtifactLocation object.
+///
+/// Reference:
+/// 1. <a href="https://docs.oasis-open.org/sarif/sarif/v2.1.0/os/sarif-v2.1.0-os.html#_Toc34317611">artifact object</a>
+class SarifArtifact {
+private:
+ friend class clang::SarifDocumentWriter;
+
+ llvm::Optional<uint32_t> Offset;
+ llvm::Optional<size_t> Length;
+ std::string MimeType;
+ SarifArtifactLocation Location;
+ llvm::SmallVector<std::string, 4> Roles;
+
+ SarifArtifact() = delete;
+
+ explicit SarifArtifact(const SarifArtifactLocation &Loc) : Location(Loc) {}
+
+public:
+ static SarifArtifact create(const SarifArtifactLocation &Loc) {
+ return SarifArtifact{Loc};
+ }
+
+ SarifArtifact setOffset(uint32_t ArtifactOffset) {
+ Offset = ArtifactOffset;
+ return *this;
+ }
+
+ SarifArtifact setLength(size_t NumBytes) {
+ Length = NumBytes;
+ return *this;
+ }
+
+ SarifArtifact setRoles(std::initializer_list<llvm::StringRef> ArtifactRoles) {
+ Roles.assign(ArtifactRoles.begin(), ArtifactRoles.end());
+ return *this;
+ }
+
+ SarifArtifact setMimeType(llvm::StringRef ArtifactMimeType) {
+ MimeType = ArtifactMimeType.str();
+ return *this;
+ }
+};
+
+} // namespace detail
+
+enum class ThreadFlowImportance { Important, Essential, Unimportant };
+
+/// A thread flow is a sequence of code locations that specify a possible path
+/// through a single thread of execution.
+/// A thread flow in SARIF is related to a code flow which describes
+/// the progress of one or more programs through one or more thread flows.
+///
+/// Reference:
+/// 1. <a href="https://docs.oasis-open.org/sarif/sarif/v2.1.0/os/sarif-v2.1.0-os.html#_Toc34317744">threadFlow object</a>
+/// 2. <a href="https://docs.oasis-open.org/sarif/sarif/v2.1.0/os/sarif-v2.1.0-os.html#_Toc34317740">codeFlow object</a>
+class ThreadFlow {
+ friend class SarifDocumentWriter;
+
+ CharSourceRange Range;
+ ThreadFlowImportance Importance;
+ std::string Message;
+
+ ThreadFlow() = default;
+
+public:
+ static ThreadFlow create() { return {}; }
+
+ ThreadFlow setRange(const CharSourceRange &ItemRange) {
+ assert(ItemRange.isCharRange() &&
+ "ThreadFlows require a character granular source range!");
+ Range = ItemRange;
+ return *this;
+ }
+
+ ThreadFlow setImportance(const ThreadFlowImportance &ItemImportance) {
+ Importance = ItemImportance;
+ return *this;
+ }
+
+ ThreadFlow setMessage(llvm::StringRef ItemMessage) {
+ Message = ItemMessage.str();
+ return *this;
+ }
+};
+
+/// A SARIF rule (\c reportingDescriptor object) contains information that
+/// describes a reporting item generated by a tool. A reporting item is
+/// either a result of analysis or notification of a condition encountered by
+/// the tool. Rules are arbitrary but are identifiable by a hierarchical
+/// rule-id.
+///
+/// This builder provides an interface to create SARIF \c reportingDescriptor
+/// objects via the \ref SarifRule::create static method.
+///
+/// Reference:
+/// 1. <a href="https://docs.oasis-open.org/sarif/sarif/v2.1.0/os/sarif-v2.1.0-os.html#_Toc34317836">reportingDescriptor object</a>
+class SarifRule {
+ friend class clang::SarifDocumentWriter;
+
+ std::string Name;
+ std::string Id;
+ std::string Description;
+ std::string HelpURI;
+
+ SarifRule() = default;
+
+public:
+ static SarifRule create() { return {}; }
+
+ SarifRule setName(llvm::StringRef RuleName) {
+ Name = RuleName.str();
+ return *this;
+ }
+
+ SarifRule setRuleId(llvm::StringRef RuleId) {
+ Id = RuleId.str();
+ return *this;
+ }
+
+ SarifRule setDescription(llvm::StringRef RuleDesc) {
+ Description = RuleDesc.str();
+ return *this;
+ }
+
+ SarifRule setHelpURI(llvm::StringRef RuleHelpURI) {
+ HelpURI = RuleHelpURI.str();
+ return *this;
+ }
+};
+
+/// A SARIF result (also called a "reporting item") is a unit of output
+/// produced when one of the tool's \c reportingDescriptor encounters a match
+/// on the file being analysed by the tool.
+///
+/// This builder provides a \ref SarifResult::create static method that can be
+/// used to create an empty shell onto which attributes can be added using the
+/// \c setX(...) methods.
+///
+/// For example:
+/// \code{.cpp}
+/// SarifResult result = SarifResult::create(...)
+/// .setRuleId(...)
+/// .setDiagnosticMessage(...);
+/// \endcode
+///
+/// Reference:
+/// 1. <a href="https://docs.oasis-open.org/sarif/sarif/v2.1.0/os/sarif-v2.1.0-os.html#_Toc34317638">SARIF<pre>result</pre></a>
+class SarifResult {
+ friend class clang::SarifDocumentWriter;
+
+ // NOTE:
+ // This type cannot fit all possible indexes representable by JSON, but is
+ // chosen because it is the largest unsigned type that can be safely
+ // converted to an \c int64_t.
+ uint32_t RuleIdx;
+ std::string RuleId;
+ std::string DiagnosticMessage;
+ llvm::SmallVector<CharSourceRange, 8> Locations;
+ llvm::SmallVector<ThreadFlow, 8> ThreadFlows;
+
+ SarifResult() = delete;
+ explicit SarifResult(uint32_t RuleIdx) : RuleIdx(RuleIdx) {}
+
+public:
+ static SarifResult create(uint32_t RuleIdx) { return SarifResult{RuleIdx}; }
+
+ SarifResult setIndex(uint32_t Idx) {
+ RuleIdx = Idx;
+ return *this;
+ }
+
+ SarifResult setRuleId(llvm::StringRef Id) {
+ RuleId = Id.str();
+ return *this;
+ }
+
+ SarifResult setDiagnosticMessage(llvm::StringRef Message) {
+ DiagnosticMessage = Message.str();
+ return *this;
+ }
+
+ SarifResult setLocations(llvm::ArrayRef<CharSourceRange> DiagLocs) {
+#ifndef NDEBUG
+ for (const auto &Loc : DiagLocs) {
+ assert(Loc.isCharRange() &&
+ "SARIF Results require character granular source ranges!");
+ }
+#endif
+ Locations.assign(DiagLocs.begin(), DiagLocs.end());
+ return *this;
+ }
+ SarifResult setThreadFlows(llvm::ArrayRef<ThreadFlow> ThreadFlowResults) {
+ ThreadFlows.assign(ThreadFlowResults.begin(), ThreadFlowResults.end());
+ return *this;
+ }
+};
+
+/// This class handles creating a valid SARIF document given various input
+/// attributes. However, it requires an ordering among certain method calls:
+///
+/// 1. Because every SARIF document must contain at least 1 \c run, callers
+/// must ensure that \ref SarifDocumentWriter::createRun is is called before
+/// any other methods.
+/// 2. If SarifDocumentWriter::endRun is called, callers MUST call
+/// SarifDocumentWriter::createRun, before invoking any of the result
+/// aggregation methods such as SarifDocumentWriter::appendResult etc.
+class SarifDocumentWriter {
+private:
+ const llvm::StringRef SchemaURI{
+ "https://docs.oasis-open.org/sarif/sarif/v2.1.0/cos02/schemas/"
+ "sarif-schema-2.1.0.json"};
+ const llvm::StringRef SchemaVersion{"2.1.0"};
+
+ /// \internal
+ /// Return a pointer to the current tool. Asserts that a run exists.
+ llvm::json::Object &getCurrentTool();
+
+ /// \internal
+ /// Checks if there is a run associated with this document.
+ ///
+ /// \return true on success
+ bool hasRun() const;
+
+ /// \internal
+ /// Reset portions of the internal state so that the document is ready to
+ /// receive data for a new run.
+ void reset();
+
+ /// \internal
+ /// Return a mutable reference to the current run, after asserting it exists.
+ ///
+ /// \note It is undefined behavior to call this if a run does not exist in
+ /// the SARIF document.
+ llvm::json::Object &getCurrentRun();
+
+ /// Create a code flow object for the given threadflows.
+ /// See \ref ThreadFlow.
+ ///
+ /// \note It is undefined behavior to call this if a run does not exist in
+ /// the SARIF document.
+ llvm::json::Object
+ createCodeFlow(const llvm::ArrayRef<ThreadFlow> ThreadFlows);
+
+ /// Add the given threadflows to the ones this SARIF document knows about.
+ llvm::json::Array
+ createThreadFlows(const llvm::ArrayRef<ThreadFlow> ThreadFlows);
+
+ /// Add the given \ref CharSourceRange to the SARIF document as a physical
+ /// location, with its corresponding artifact.
+ llvm::json::Object createPhysicalLocation(const CharSourceRange &R);
+
+public:
+ SarifDocumentWriter() = delete;
+
+ /// Create a new empty SARIF document with the given source manager.
+ SarifDocumentWriter(const SourceManager &SourceMgr) : SourceMgr(SourceMgr) {}
+
+ /// Release resources held by this SARIF document.
+ ~SarifDocumentWriter() = default;
+
+ /// Create a new run with which any upcoming analysis will be associated.
+ /// Each run requires specifying the tool that is generating reporting items.
+ void createRun(const llvm::StringRef ShortToolName,
+ const llvm::StringRef LongToolName,
+ const llvm::StringRef ToolVersion = CLANG_VERSION_STRING);
+
+ /// If there is a current run, end it.
+ ///
+ /// This method collects various book-keeping required to clear and close
+ /// resources associated with the current run, but may also allocate some
+ /// for the next run.
+ ///
+ /// Calling \ref endRun before associating a run through \ref createRun leads
+ /// to undefined behaviour.
+ void endRun();
+
+ /// Associate the given rule with the current run.
+ ///
+ /// Returns an integer rule index for the created rule that is unique within
+ /// the current run, which can then be used to create a \ref SarifResult
+ /// to add to the current run. Note that a rule must exist before being
+ /// referenced by a result.
+ ///
+ /// \pre
+ /// There must be a run associated with the document, failing to do so will
+ /// cause undefined behaviour.
+ size_t createRule(const SarifRule &Rule);
+
+ /// Append a new result to the currently in-flight run.
+ ///
+ /// \pre
+ /// There must be a run associated with the document, failing to do so will
+ /// cause undefined behaviour.
+ /// \pre
+ /// \c RuleIdx used to create the result must correspond to a rule known by
+ /// the SARIF document. It must be the value returned by a previous call
+ /// to \ref createRule.
+ void appendResult(const SarifResult &SarifResult);
+
+ /// Return the SARIF document in its current state.
+ /// Calling this will trigger a copy of the internal state including all
+ /// reported diagnostics, resulting in an expensive call.
+ llvm::json::Object createDocument();
+
+private:
+ /// Source Manager to use for the current SARIF document.
+ const SourceManager &SourceMgr;
+
+ /// Flag to track the state of this document:
+ /// A closed document is one on which a new runs must be created.
+ /// This could be a document that is freshly created, or has recently
+ /// finished writing to a previous run.
+ bool Closed = true;
+
+ /// A sequence of SARIF runs.
+ /// Each run object describes a single run of an analysis tool and contains
+ /// the output of that run.
+ ///
+ /// Reference: <a href="https://docs.oasis-open.org/sarif/sarif/v2.1.0/os/sarif-v2.1.0-os.html#_Toc34317484">run object</a>
+ llvm::json::Array Runs;
+
+ /// The list of rules associated with the most recent active run. These are
+ /// defined using the diagnostics passed to the SarifDocument. Each rule
+ /// need not be unique through the result set. E.g. there may be several
+ /// 'syntax' errors throughout code under analysis, each of which has its
+ /// own specific diagnostic message (and consequently, RuleId). Rules are
+ /// also known as "reportingDescriptor" objects in SARIF.
+ ///
+ /// Reference: <a href="https://docs.oasis-open.org/sarif/sarif/v2.1.0/os/sarif-v2.1.0-os.html#_Toc34317556">rules property</a>
+ llvm::SmallVector<SarifRule, 32> CurrentRules;
+
+ /// The list of artifacts that have been encountered on the most recent active
+ /// run. An artifact is defined in SARIF as a sequence of bytes addressable
+ /// by a URI. A common example for clang's case would be files named by
+ /// filesystem paths.
+ llvm::StringMap<detail::SarifArtifact> CurrentArtifacts;
+};
+} // namespace clang
+
+#endif // LLVM_CLANG_BASIC_SARIF_H
diff --git a/clang/lib/Basic/CMakeLists.txt b/clang/lib/Basic/CMakeLists.txt
index c815b571bc9c..284e73b1c11f 100644
--- a/clang/lib/Basic/CMakeLists.txt
+++ b/clang/lib/Basic/CMakeLists.txt
@@ -63,6 +63,7 @@ add_clang_library(clangBasic
NoSanitizeList.cpp
SanitizerSpecialCaseList.cpp
Sanitizers.cpp
+ Sarif.cpp
SourceLocation.cpp
SourceManager.cpp
Stack.cpp
diff --git a/clang/lib/Basic/Sarif.cpp b/clang/lib/Basic/Sarif.cpp
new file mode 100644
index 000000000000..7e4dc3e7ea76
--- /dev/null
+++ b/clang/lib/Basic/Sarif.cpp
@@ -0,0 +1,391 @@
+//===-- clang/Basic/Sarif.cpp - SarifDocumentWriter class definition ------===//
+//
+// 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 contains the declaration of the SARIFDocumentWriter class, and
+/// associated builders such as:
+/// - \ref SarifArtifact
+/// - \ref SarifArtifactLocation
+/// - \ref SarifRule
+/// - \ref SarifResult
+//===----------------------------------------------------------------------===//
+#include "clang/Basic/Sarif.h"
+#include "clang/Basic/LangOptions.h"
+#include "clang/Basic/SourceLocation.h"
+#include "clang/Basic/SourceManager.h"
+#include "clang/Basic/Version.h"
+#include "llvm/ADT/ArrayRef.h"
+#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/ConvertUTF.h"
+#include "llvm/Support/JSON.h"
+#include "llvm/Support/Path.h"
+
+#include <string>
+#include <utility>
+
+using namespace clang;
+using namespace llvm;
+
+using clang::detail::SarifArtifact;
+using clang::detail::SarifArtifactLocation;
+
+static StringRef getFileName(const FileEntry &FE) {
+ StringRef Filename = FE.tryGetRealPathName();
+ if (Filename.empty())
+ Filename = FE.getName();
+ return Filename;
+}
+/// \name URI
+/// @{
+
+/// \internal
+/// \brief
+/// Return the RFC3986 encoding of the input character.
+///
+/// \param C Character to encode to RFC3986.
+///
+/// \return The RFC3986 representation of \c C.
+static std::string percentEncodeURICharacter(char C) {
+ // RFC 3986 claims alpha, numeric, and this handful of
+ // characters are not reserved for the path component and
+ // should be written out directly. Otherwise, percent
+ // encode the character and write that out instead of the
+ // reserved character.
+ if (llvm::isAlnum(C) ||
+ StringRef::npos != StringRef("-._~:@!$&'()*+,;=").find(C))
+ return std::string(&C, 1);
+ return "%" + llvm::toHex(StringRef(&C, 1));
+}
+
+/// \internal
+/// \brief Return a URI representing the given file name.
+///
+/// \param Filename The filename to be represented as URI.
+///
+/// \return RFC3986 URI representing the input file name.
+static std::string fileNameToURI(StringRef Filename) {
+ SmallString<32> Ret = StringRef("file://");
+
+ // Get the root name to see if it has a URI authority.
+ StringRef Root = sys::path::root_name(Filename);
+ if (Root.startswith("//")) {
+ // There is an authority, so add it to the URI.
+ Ret += Root.drop_front(2).str();
+ } else if (!Root.empty()) {
+ // There is no authority, so end the component and add the root to the URI.
+ Ret += Twine("/" + Root).str();
+ }
+
+ auto Iter = sys::path::begin(Filename), End = sys::path::end(Filename);
+ assert(Iter != End && "Expected there to be a non-root path component.");
+ // Add the rest of the path components, encoding any reserved characters;
+ // we skip past the first path component, as it was handled it above.
+ std::for_each(++Iter, End, [&Ret](StringRef Component) {
+ // For reasons unknown to me, we may get a backslash with Windows native
+ // paths for the initial backslash following the drive component, which
+ // we need to ignore as a URI path part.
+ if (Component == "\\")
+ return;
+
+ // Add the separator between the previous path part and the one being
+ // currently processed.
+ Ret += "/";
+
+ // URI encode the part.
+ for (char C : Component) {
+ Ret += percentEncodeURICharacter(C);
+ }
+ });
+
+ return std::string(Ret);
+}
+/// @}
+
+/// \brief Calculate the column position expressed in the number of UTF-8 code
+/// points from column start to the source location
+///
+/// \param Loc The source location whose column needs to be calculated.
+/// \param TokenLen Optional hint for when the token is multiple bytes long.
+///
+/// \return The column number as a UTF-8 aware byte offset from column start to
+/// the effective source location.
+static unsigned int adjustColumnPos(FullSourceLoc Loc,
+ unsigned int TokenLen = 0) {
+ assert(!Loc.isInvalid() && "invalid Loc when adjusting column position");
+
+ std::pair<FileID, unsigned> LocInfo = Loc.getDecomposedLoc();
+ Optional<MemoryBufferRef> Buf =
+ Loc.getManager().getBufferOrNone(LocInfo.first);
+ assert(Buf && "got an invalid buffer for the location's file");
+ assert(Buf->getBufferSize() >= (LocInfo.second + TokenLen) &&
+ "token extends past end of buffer?");
+
+ // Adjust the offset to be the start of the line, since we'll be counting
+ // Unicode characters from there until our column offset.
+ unsigned int Off = LocInfo.second - (Loc.getExpansionColumnNumber() - 1);
+ unsigned int Ret = 1;
+ while (Off < (LocInfo.second + TokenLen)) {
+ Off += getNumBytesForUTF8(Buf->getBuffer()[Off]);
+ Ret++;
+ }
+
+ return Ret;
+}
+
+/// \name SARIF Utilities
+/// @{
+
+/// \internal
+json::Object createMessage(StringRef Text) {
+ return json::Object{{"text", Text.str()}};
+}
+
+/// \internal
+/// \pre CharSourceRange must be a token range
+static json::Object createTextRegion(const SourceManager &SM,
+ const CharSourceRange &R) {
+ FullSourceLoc FirstTokenLoc{R.getBegin(), SM};
+ FullSourceLoc LastTokenLoc{R.getEnd(), SM};
+ json::Object Region{{"startLine", FirstTokenLoc.getExpansionLineNumber()},
+ {"startColumn", adjustColumnPos(FirstTokenLoc)},
+ {"endColumn", adjustColumnPos(LastTokenLoc)}};
+ if (FirstTokenLoc != LastTokenLoc) {
+ Region["endLine"] = LastTokenLoc.getExpansionLineNumber();
+ }
+ return Region;
+}
+
+static json::Object createLocation(json::Object &&PhysicalLocation,
+ StringRef Message = "") {
+ json::Object Ret{{"physicalLocation", std::move(PhysicalLocation)}};
+ if (!Message.empty())
+ Ret.insert({"message", createMessage(Message)});
+ return Ret;
+}
+
+static StringRef importanceToStr(ThreadFlowImportance I) {
+ switch (I) {
+ case ThreadFlowImportance::Important:
+ return "important";
+ case ThreadFlowImportance::Essential:
+ return "essential";
+ case ThreadFlowImportance::Unimportant:
+ return "unimportant";
+ }
+ llvm_unreachable("Fully covered switch is not so fully covered");
+}
+
+static json::Object
+createThreadFlowLocation(json::Object &&Location,
+ const ThreadFlowImportance &Importance) {
+ return json::Object{{"location", std::move(Location)},
+ {"importance", importanceToStr(Importance)}};
+}
+/// @}
+
+json::Object
+SarifDocumentWriter::createPhysicalLocation(const CharSourceRange &R) {
+ assert(R.isValid() &&
+ "Cannot create a physicalLocation from invalid SourceRange!");
+ assert(R.isCharRange() &&
+ "Cannot create a physicalLocation from a token range!");
+ FullSourceLoc Start{R.getBegin(), SourceMgr};
+ const FileEntry *FE = Start.getExpansionLoc().getFileEntry();
+ assert(FE != nullptr && "Diagnostic does not exist within a valid file!");
+
+ const std::string &FileURI = fileNameToURI(getFileName(*FE));
+ auto I = CurrentArtifacts.find(FileURI);
+
+ if (I == CurrentArtifacts.end()) {
+ uint32_t Idx = static_cast<uint32_t>(CurrentArtifacts.size());
+ const SarifArtifactLocation &Location =
+ SarifArtifactLocation::create(FileURI).setIndex(Idx);
+ const SarifArtifact &Artifact = SarifArtifact::create(Location)
+ .setRoles({"resultFile"})
+ .setLength(FE->getSize())
+ .setMimeType("text/plain");
+ auto StatusIter = CurrentArtifacts.insert({FileURI, Artifact});
+ // If inserted, ensure the original iterator points to the newly inserted
+ // element, so it can be used downstream.
+ if (StatusIter.second)
+ I = StatusIter.first;
+ }
+ assert(I != CurrentArtifacts.end() && "Failed to insert new artifact");
+ const SarifArtifactLocation &Location = I->second.Location;
+ uint32_t Idx = Location.Index.getValue();
+ return json::Object{{{"artifactLocation", json::Object{{{"index", Idx}}}},
+ {"region", createTextRegion(SourceMgr, R)}}};
+}
+
+json::Object &SarifDocumentWriter::getCurrentTool() {
+ assert(!Closed && "SARIF Document is closed. "
+ "Need to call createRun() before using getcurrentTool!");
+
+ // Since Closed = false here, expect there to be at least 1 Run, anything
+ // else is an invalid state.
+ assert(!Runs.empty() && "There are no runs associated with the document!");
+
+ return *Runs.back().getAsObject()->get("tool")->getAsObject();
+}
+
+void SarifDocumentWriter::reset() {
+ CurrentRules.clear();
+ CurrentArtifacts.clear();
+}
+
+void SarifDocumentWriter::endRun() {
+ // Exit early if trying to close a closed Document.
+ if (Closed) {
+ reset();
+ return;
+ }
+
+ // Since Closed = false here, expect there to be at least 1 Run, anything
+ // else is an invalid state.
+ assert(!Runs.empty() && "There are no runs associated with the document!");
+
+ // Flush all the rules.
+ json::Object &Tool = getCurrentTool();
+ json::Array Rules;
+ for (const SarifRule &R : CurrentRules) {
+ json::Object Rule{
+ {"name", R.Name},
+ {"id", R.Id},
+ {"fullDescription", json::Object{{"text", R.Description}}}};
+ if (!R.HelpURI.empty())
+ Rule["helpUri"] = R.HelpURI;
+ Rules.emplace_back(std::move(Rule));
+ }
+ json::Object &Driver = *Tool.getObject("driver");
+ Driver["rules"] = std::move(Rules);
+
+ // Flush all the artifacts.
+ json::Object &Run = getCurrentRun();
+ json::Array *Artifacts = Run.getArray("artifacts");
+ for (const auto &Pair : CurrentArtifacts) {
+ const SarifArtifact &A = Pair.getValue();
+ json::Object Loc{{"uri", A.Location.URI}};
+ if (A.Location.Index.hasValue()) {
+ Loc["index"] = static_cast<int64_t>(A.Location.Index.getValue());
+ }
+ json::Object Artifact;
+ Artifact["location"] = std::move(Loc);
+ if (A.Length.hasValue())
+ Artifact["length"] = static_cast<int64_t>(A.Length.getValue());
+ if (!A.Roles.empty())
+ Artifact["roles"] = json::Array(A.Roles);
+ if (!A.MimeType.empty())
+ Artifact["mimeType"] = A.MimeType;
+ if (A.Offset.hasValue())
+ Artifact["offset"] = A.Offset;
+ Artifacts->push_back(json::Value(std::move(Artifact)));
+ }
+
+ // Clear, reset temporaries before next run.
+ reset();
+
+ // Mark the document as closed.
+ Closed = true;
+}
+
+json::Array
+SarifDocumentWriter::createThreadFlows(ArrayRef<ThreadFlow> ThreadFlows) {
+ json::Object Ret{{"locations", json::Array{}}};
+ json::Array Locs;
+ for (const auto &ThreadFlow : ThreadFlows) {
+ json::Object PLoc = createPhysicalLocation(ThreadFlow.Range);
+ json::Object Loc = createLocation(std::move(PLoc), ThreadFlow.Message);
+ Locs.emplace_back(
+ createThreadFlowLocation(std::move(Loc), ThreadFlow.Importance));
+ }
+ Ret["locations"] = std::move(Locs);
+ return json::Array{std::move(Ret)};
+}
+
+json::Object
+SarifDocumentWriter::createCodeFlow(ArrayRef<ThreadFlow> ThreadFlows) {
+ return json::Object{{"threadFlows", createThreadFlows(ThreadFlows)}};
+}
+
+void SarifDocumentWriter::createRun(StringRef ShortToolName,
+ StringRef LongToolName,
+ StringRef ToolVersion) {
+ // Clear resources associated with a previous run.
+ endRun();
+
+ // Signify a new run has begun.
+ Closed = false;
+
+ json::Object Tool{
+ {"driver",
+ json::Object{{"name", ShortToolName},
+ {"fullName", LongToolName},
+ {"language", "en-US"},
+ {"version", ToolVersion},
+ {"informationUri",
+ "https://clang.llvm.org/docs/UsersManual.html"}}}};
+ json::Object theRun{{"tool", std::move(Tool)},
+ {"results", {}},
+ {"artifacts", {}},
+ {"columnKind", "unicodeCodePoints"}};
+ Runs.emplace_back(std::move(theRun));
+}
+
+json::Object &SarifDocumentWriter::getCurrentRun() {
+ assert(!Closed &&
+ "SARIF Document is closed. "
+ "Can only getCurrentRun() if document is opened via createRun(), "
+ "create a run first");
+
+ // Since Closed = false here, expect there to be at least 1 Run, anything
+ // else is an invalid state.
+ assert(!Runs.empty() && "There are no runs associated with the document!");
+ return *Runs.back().getAsObject();
+}
+
+size_t SarifDocumentWriter::createRule(const SarifRule &Rule) {
+ size_t Ret = CurrentRules.size();
+ CurrentRules.emplace_back(Rule);
+ return Ret;
+}
+
+void SarifDocumentWriter::appendResult(const SarifResult &Result) {
+ size_t RuleIdx = Result.RuleIdx;
+ assert(RuleIdx < CurrentRules.size() &&
+ "Trying to reference a rule that doesn't exist");
+ json::Object Ret{{"message", createMessage(Result.DiagnosticMessage)},
+ {"ruleIndex", static_cast<int64_t>(RuleIdx)},
+ {"ruleId", CurrentRules[RuleIdx].Id}};
+ if (!Result.Locations.empty()) {
+ json::Array Locs;
+ for (auto &Range : Result.Locations) {
+ Locs.emplace_back(createLocation(createPhysicalLocation(Range)));
+ }
+ Ret["locations"] = std::move(Locs);
+ }
+ if (!Result.ThreadFlows.empty())
+ Ret["codeFlows"] = json::Array{createCodeFlow(Result.ThreadFlows)};
+ json::Object &Run = getCurrentRun();
+ json::Array *Results = Run.getArray("results");
+ Results->emplace_back(std::move(Ret));
+}
+
+json::Object SarifDocumentWriter::createDocument() {
+ // Flush all temporaries to their destinations if needed.
+ endRun();
+
+ json::Object doc{
+ {"$schema", SchemaURI},
+ {"version", SchemaVersion},
+ };
+ if (!Runs.empty())
+ doc["runs"] = json::Array(Runs);
+ return doc;
+}
diff --git a/clang/unittests/Basic/CMakeLists.txt b/clang/unittests/Basic/CMakeLists.txt
index b6f5d79e87c7..6c00f63332af 100644
--- a/clang/unittests/Basic/CMakeLists.txt
+++ b/clang/unittests/Basic/CMakeLists.txt
@@ -10,6 +10,7 @@ add_clang_unittest(BasicTests
FileManagerTest.cpp
LineOffsetMappingTest.cpp
SanitizersTest.cpp
+ SarifTest.cpp
SourceManagerTest.cpp
)
diff --git a/clang/unittests/Basic/SarifTest.cpp b/clang/unittests/Basic/SarifTest.cpp
new file mode 100644
index 000000000000..aede07e15b7f
--- /dev/null
+++ b/clang/unittests/Basic/SarifTest.cpp
@@ -0,0 +1,320 @@
+//===- unittests/Basic/SarifTest.cpp - Test writing SARIF documents -------===//
+//
+// 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/Basic/Sarif.h"
+#include "clang/Basic/DiagnosticIDs.h"
+#include "clang/Basic/DiagnosticOptions.h"
+#include "clang/Basic/FileManager.h"
+#include "clang/Basic/FileSystemOptions.h"
+#include "clang/Basic/LangOptions.h"
+#include "clang/Basic/SourceLocation.h"
+#include "clang/Basic/SourceManager.h"
+#include "llvm/ADT/StringRef.h"
+#include "llvm/Support/FormatVariadic.h"
+#include "llvm/Support/JSON.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/VirtualFileSystem.h"
+#include "llvm/Support/raw_ostream.h"
+#include "gmock/gmock.h"
+#include "gtest/gtest-death-test.h"
+#include "gtest/gtest-matchers.h"
+#include "gtest/gtest.h"
+
+#include <algorithm>
+
+using namespace clang;
+
+namespace {
+
+using LineCol = std::pair<unsigned int, unsigned int>;
+
+static std::string serializeSarifDocument(llvm::json::Object &&Doc) {
+ std::string Output;
+ llvm::json::Value value(std::move(Doc));
+ llvm::raw_string_ostream OS{Output};
+ OS << llvm::formatv("{0}", value);
+ OS.flush();
+ return Output;
+}
+
+class SarifDocumentWriterTest : public ::testing::Test {
+protected:
+ SarifDocumentWriterTest()
+ : InMemoryFileSystem(new llvm::vfs::InMemoryFileSystem),
+ FileMgr(FileSystemOptions(), InMemoryFileSystem),
+ DiagID(new DiagnosticIDs()), DiagOpts(new DiagnosticOptions()),
+ Diags(DiagID, DiagOpts.get(), new IgnoringDiagConsumer()),
+ SourceMgr(Diags, FileMgr) {}
+
+ IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> InMemoryFileSystem;
+ FileManager FileMgr;
+ IntrusiveRefCntPtr<DiagnosticIDs> DiagID;
+ IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts;
+ DiagnosticsEngine Diags;
+ SourceManager SourceMgr;
+ LangOptions LangOpts;
+
+ FileID registerSource(llvm::StringRef Name, const char *SourceText,
+ bool IsMainFile = false) {
+ std::unique_ptr<llvm::MemoryBuffer> SourceBuf =
+ llvm::MemoryBuffer::getMemBuffer(SourceText);
+ const FileEntry *SourceFile =
+ FileMgr.getVirtualFile(Name, SourceBuf->getBufferSize(), 0);
+ SourceMgr.overrideFileContents(SourceFile, std::move(SourceBuf));
+ FileID FID = SourceMgr.getOrCreateFileID(SourceFile, SrcMgr::C_User);
+ if (IsMainFile)
+ SourceMgr.setMainFileID(FID);
+ return FID;
+ }
+
+ CharSourceRange getFakeCharSourceRange(FileID FID, LineCol Begin,
+ LineCol End) {
+ auto BeginLoc = SourceMgr.translateLineCol(FID, Begin.first, Begin.second);
+ auto EndLoc = SourceMgr.translateLineCol(FID, End.first, End.second);
+ return CharSourceRange{SourceRange{BeginLoc, EndLoc}, /* ITR = */ false};
+ }
+};
+
+TEST_F(SarifDocumentWriterTest, createEmptyDocument) {
+ // GIVEN:
+ SarifDocumentWriter Writer{SourceMgr};
+
+ // WHEN:
+ const llvm::json::Object &EmptyDoc = Writer.createDocument();
+ std::vector<StringRef> Keys(EmptyDoc.size());
+ std::transform(EmptyDoc.begin(), EmptyDoc.end(), Keys.begin(),
+ [](auto item) { return item.getFirst(); });
+
+ // THEN:
+ ASSERT_THAT(Keys, testing::UnorderedElementsAre("$schema", "version"));
+}
+
+// Test that a newly inserted run will associate correct tool names
+TEST_F(SarifDocumentWriterTest, documentWithARun) {
+ // GIVEN:
+ SarifDocumentWriter Writer{SourceMgr};
+ const char *ShortName = "sariftest";
+ const char *LongName = "sarif writer test";
+
+ // WHEN:
+ Writer.createRun(ShortName, LongName);
+ Writer.endRun();
+ const llvm::json::Object &Doc = Writer.createDocument();
+ const llvm::json::Array *Runs = Doc.getArray("runs");
+
+ // THEN:
+ // A run was created
+ ASSERT_THAT(Runs, testing::NotNull());
+
+ // It is the only run
+ ASSERT_EQ(Runs->size(), 1UL);
+
+ // The tool associated with the run was the tool
+ const llvm::json::Object *driver =
+ Runs->begin()->getAsObject()->getObject("tool")->getObject("driver");
+ ASSERT_THAT(driver, testing::NotNull());
+
+ ASSERT_TRUE(driver->getString("name").hasValue());
+ ASSERT_TRUE(driver->getString("fullName").hasValue());
+ ASSERT_TRUE(driver->getString("language").hasValue());
+
+ EXPECT_EQ(driver->getString("name").getValue(), ShortName);
+ EXPECT_EQ(driver->getString("fullName").getValue(), LongName);
+ EXPECT_EQ(driver->getString("language").getValue(), "en-US");
+}
+
+// Test adding result without a run causes a crash
+TEST_F(SarifDocumentWriterTest, addingResultsWillCrashIfThereIsNoRun) {
+ // GIVEN:
+ SarifDocumentWriter Writer{SourceMgr};
+
+ // WHEN:
+ // A SarifDocumentWriter::createRun(...) was not called prior to
+ // SarifDocumentWriter::appendResult(...)
+ // But a rule exists
+ auto RuleIdx = Writer.createRule(SarifRule::create());
+ SarifResult &&EmptyResult = SarifResult::create(RuleIdx);
+
+ // THEN:
+ ASSERT_DEATH({ Writer.appendResult(EmptyResult); }, ".*create a run first.*");
+}
+
+// Test adding rule and result shows up in the final document
+TEST_F(SarifDocumentWriterTest, addResultWithValidRuleIsOk) {
+ // GIVEN:
+ SarifDocumentWriter Writer{SourceMgr};
+ const SarifRule &Rule =
+ SarifRule::create()
+ .setRuleId("clang.unittest")
+ .setDescription("Example rule created during unit tests")
+ .setName("clang unit test");
+
+ // WHEN:
+ Writer.createRun("sarif test", "sarif test runner");
+ unsigned RuleIdx = Writer.createRule(Rule);
+ const SarifResult &result = SarifResult::create(RuleIdx);
+
+ Writer.appendResult(result);
+ const llvm::json::Object &Doc = Writer.createDocument();
+
+ // THEN:
+ // A document with a valid schema and version exists
+ ASSERT_THAT(Doc.get("$schema"), ::testing::NotNull());
+ ASSERT_THAT(Doc.get("version"), ::testing::NotNull());
+ const llvm::json::Array *Runs = Doc.getArray("runs");
+
+ // A run exists on this document
+ ASSERT_THAT(Runs, ::testing::NotNull());
+ ASSERT_EQ(Runs->size(), 1UL);
+ const llvm::json::Object *TheRun = Runs->back().getAsObject();
+
+ // The run has slots for tools, results, rules and artifacts
+ ASSERT_THAT(TheRun->get("tool"), ::testing::NotNull());
+ ASSERT_THAT(TheRun->get("results"), ::testing::NotNull());
+ ASSERT_THAT(TheRun->get("artifacts"), ::testing::NotNull());
+ const llvm::json::Object *Driver =
+ TheRun->getObject("tool")->getObject("driver");
+ const llvm::json::Array *Results = TheRun->getArray("results");
+ const llvm::json::Array *Artifacts = TheRun->getArray("artifacts");
+
+ // The tool is as expected
+ ASSERT_TRUE(Driver->getString("name").hasValue());
+ ASSERT_TRUE(Driver->getString("fullName").hasValue());
+
+ EXPECT_EQ(Driver->getString("name").getValue(), "sarif test");
+ EXPECT_EQ(Driver->getString("fullName").getValue(), "sarif test runner");
+
+ // The results are as expected
+ EXPECT_EQ(Results->size(), 1UL);
+
+ // The artifacts are as expected
+ EXPECT_TRUE(Artifacts->empty());
+}
+
+TEST_F(SarifDocumentWriterTest, checkSerializingResults) {
+ // GIVEN:
+ const std::string ExpectedOutput =
+ R"({"$schema":"https://docs.oasis-open.org/sarif/sarif/v2.1.0/cos02/schemas/sarif-schema-2.1.0.json","runs":[{"artifacts":[],"columnKind":"unicodeCodePoints","results":[{"message":{"text":""},"ruleId":"clang.unittest","ruleIndex":0}],"tool":{"driver":{"fullName":"sarif test runner","informationUri":"https://clang.llvm.org/docs/UsersManual.html","language":"en-US","name":"sarif test","rules":[{"fullDescription":{"text":"Example rule created during unit tests"},"id":"clang.unittest","name":"clang unit test"}],"version":"1.0.0"}}}],"version":"2.1.0"})";
+
+ SarifDocumentWriter Writer{SourceMgr};
+ const SarifRule &Rule =
+ SarifRule::create()
+ .setRuleId("clang.unittest")
+ .setDescription("Example rule created during unit tests")
+ .setName("clang unit test");
+
+ // WHEN: A run contains a result
+ Writer.createRun("sarif test", "sarif test runner", "1.0.0");
+ unsigned ruleIdx = Writer.createRule(Rule);
+ const SarifResult &Result = SarifResult::create(ruleIdx);
+ Writer.appendResult(Result);
+ std::string Output = serializeSarifDocument(Writer.createDocument());
+
+ // THEN:
+ ASSERT_THAT(Output, ::testing::StrEq(ExpectedOutput));
+}
+
+// Check that serializing artifacts from results produces valid SARIF
+TEST_F(SarifDocumentWriterTest, checkSerializingArtifacts) {
+ // GIVEN:
+ const std::string ExpectedOutput =
+ R"({"$schema":"https://docs.oasis-open.org/sarif/sarif/v2.1.0/cos02/schemas/sarif-schema-2.1.0.json","runs":[{"artifacts":[{"length":40,"location":{"index":0,"uri":"file:///main.cpp"},"mimeType":"text/plain","roles":["resultFile"]}],"columnKind":"unicodeCodePoints","results":[{"locations":[{"physicalLocation":{"artifactLocation":{"index":0},"region":{"endColumn":14,"startColumn":14,"startLine":3}}}],"message":{"text":"expected ';' after top level declarator"},"ruleId":"clang.unittest","ruleIndex":0}],"tool":{"driver":{"fullName":"sarif test runner","informationUri":"https://clang.llvm.org/docs/UsersManual.html","language":"en-US","name":"sarif test","rules":[{"fullDescription":{"text":"Example rule created during unit tests"},"id":"clang.unittest","name":"clang unit test"}],"version":"1.0.0"}}}],"version":"2.1.0"})";
+
+ SarifDocumentWriter Writer{SourceMgr};
+ const SarifRule &Rule =
+ SarifRule::create()
+ .setRuleId("clang.unittest")
+ .setDescription("Example rule created during unit tests")
+ .setName("clang unit test");
+
+ // WHEN: A result is added with valid source locations for its diagnostics
+ Writer.createRun("sarif test", "sarif test runner", "1.0.0");
+ unsigned RuleIdx = Writer.createRule(Rule);
+
+ llvm::SmallVector<CharSourceRange, 1> DiagLocs;
+ const char *SourceText = "int foo = 0;\n"
+ "int bar = 1;\n"
+ "float x = 0.0\n";
+
+ FileID MainFileID =
+ registerSource("/main.cpp", SourceText, /* IsMainFile = */ true);
+ CharSourceRange SourceCSR =
+ getFakeCharSourceRange(MainFileID, {3, 14}, {3, 14});
+
+ DiagLocs.push_back(SourceCSR);
+
+ const SarifResult &Result =
+ SarifResult::create(RuleIdx).setLocations(DiagLocs).setDiagnosticMessage(
+ "expected ';' after top level declarator");
+ Writer.appendResult(Result);
+ std::string Output = serializeSarifDocument(Writer.createDocument());
+
+ // THEN: Assert that the serialized SARIF is as expected
+ ASSERT_THAT(Output, ::testing::StrEq(ExpectedOutput));
+}
+
+TEST_F(SarifDocumentWriterTest, checkSerializingCodeflows) {
+ // GIVEN:
+ const std::string ExpectedOutput =
+ R"({"$schema":"https://docs.oasis-open.org/sarif/sarif/v2.1.0/cos02/schemas/sarif-schema-2.1.0.json","runs":[{"artifacts":[{"length":27,"location":{"index":1,"uri":"file:///test-header-1.h"},"mimeType":"text/plain","roles":["resultFile"]},{"length":30,"location":{"index":2,"uri":"file:///test-header-2.h"},"mimeType":"text/plain","roles":["resultFile"]},{"length":28,"location":{"index":3,"uri":"file:///test-header-3.h"},"mimeType":"text/plain","roles":["resultFile"]},{"length":41,"location":{"index":0,"uri":"file:///main.cpp"},"mimeType":"text/plain","roles":["resultFile"]}],"columnKind":"unicodeCodePoints","results":[{"codeFlows":[{"threadFlows":[{"locations":[{"importance":"essential","location":{"message":{"text":"Message #1"},"physicalLocation":{"artifactLocation":{"index":1},"region":{"endColumn":8,"endLine":2,"startColumn":1,"startLine":1}}}},{"importance":"important","location":{"message":{"text":"Message #2"},"physicalLocation":{"artifactLocation":{"index":2},"region":{"endColumn":8,"endLine":2,"startColumn":1,"startLine":1}}}},{"importance":"unimportant","location":{"message":{"text":"Message #3"},"physicalLocation":{"artifactLocation":{"index":3},"region":{"endColumn":8,"endLine":2,"startColumn":1,"startLine":1}}}}]}]}],"locations":[{"physicalLocation":{"artifactLocation":{"index":0},"region":{"endColumn":8,"endLine":2,"startColumn":5,"startLine":2}}}],"message":{"text":"Redefinition of 'foo'"},"ruleId":"clang.unittest","ruleIndex":0}],"tool":{"driver":{"fullName":"sarif test runner","informationUri":"https://clang.llvm.org/docs/UsersManual.html","language":"en-US","name":"sarif test","rules":[{"fullDescription":{"text":"Example rule created during unit tests"},"id":"clang.unittest","name":"clang unit test"}],"version":"1.0.0"}}}],"version":"2.1.0"})";
+
+ const char *SourceText = "int foo = 0;\n"
+ "int foo = 1;\n"
+ "float x = 0.0;\n";
+ FileID MainFileID =
+ registerSource("/main.cpp", SourceText, /* IsMainFile = */ true);
+ CharSourceRange DiagLoc{getFakeCharSourceRange(MainFileID, {2, 5}, {2, 8})};
+
+ SarifDocumentWriter Writer{SourceMgr};
+ const SarifRule &Rule =
+ SarifRule::create()
+ .setRuleId("clang.unittest")
+ .setDescription("Example rule created during unit tests")
+ .setName("clang unit test");
+
+ constexpr unsigned int NUM_CASES = 3;
+ llvm::SmallVector<ThreadFlow, NUM_CASES> Threadflows;
+ const char *HeaderTexts[NUM_CASES]{("#pragma once\n"
+ "#include <foo>"),
+ ("#ifndef FOO\n"
+ "#define FOO\n"
+ "#endif"),
+ ("#ifdef FOO\n"
+ "#undef FOO\n"
+ "#endif")};
+ const char *HeaderNames[NUM_CASES]{"/test-header-1.h", "/test-header-2.h",
+ "/test-header-3.h"};
+ ThreadFlowImportance Importances[NUM_CASES]{
+ ThreadFlowImportance::Essential, ThreadFlowImportance::Important,
+ ThreadFlowImportance::Unimportant};
+ for (size_t Idx = 0; Idx != NUM_CASES; ++Idx) {
+ FileID FID = registerSource(HeaderNames[Idx], HeaderTexts[Idx]);
+ CharSourceRange &&CSR = getFakeCharSourceRange(FID, {1, 1}, {2, 8});
+ std::string Message = llvm::formatv("Message #{0}", Idx + 1);
+ ThreadFlow Item = ThreadFlow::create()
+ .setRange(CSR)
+ .setImportance(Importances[Idx])
+ .setMessage(Message);
+ Threadflows.push_back(Item);
+ }
+
+ // WHEN: A result containing code flows and diagnostic locations is added
+ Writer.createRun("sarif test", "sarif test runner", "1.0.0");
+ unsigned RuleIdx = Writer.createRule(Rule);
+ const SarifResult &Result = SarifResult::create(RuleIdx)
+ .setLocations({DiagLoc})
+ .setDiagnosticMessage("Redefinition of 'foo'")
+ .setThreadFlows(Threadflows);
+ Writer.appendResult(Result);
+ std::string Output = serializeSarifDocument(Writer.createDocument());
+
+ // THEN: Assert that the serialized SARIF is as expected
+ ASSERT_THAT(Output, ::testing::StrEq(ExpectedOutput));
+}
+
+} // namespace
More information about the cfe-commits
mailing list