C++ CompilerInstance::getDiagnostics方法代码示例

void c2ffi::init_ci(config &c, clang::CompilerInstance &ci) {
    using clang::DiagnosticOptions;
    using clang::TextDiagnosticPrinter;
    using clang::TargetOptions;
    using clang::TargetInfo;

    ci.getInvocation().setLangDefaults(ci.getLangOpts(), c.kind,
                                       clang::LangStandard::lang_unspecified);

    DiagnosticOptions *dopt = new DiagnosticOptions;
    TextDiagnosticPrinter *tpd =
        new TextDiagnosticPrinter(llvm::errs(), dopt, false);
    ci.createDiagnostics(tpd);

    llvm::IntrusiveRefCntPtr<TargetOptions> *pto =
        new llvm::IntrusiveRefCntPtr<TargetOptions>(new TargetOptions());
    if(c.arch == "")
        (*pto)->Triple = llvm::sys::getDefaultTargetTriple();
    else
        (*pto)->Triple = c.arch;

    TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), pto->getPtr());
    ci.setTarget(pti);

    ci.createFileManager();
    ci.createSourceManager(ci.getFileManager());
    ci.createPreprocessor(clang::TU_Complete);
    ci.getPreprocessorOpts().UsePredefines = false;
}

	ClangParser()
	{
		// Usually all examples try to build the CompilerInstance Object from CompilerInvocation object.
		// However, CompilterInstance already has an in-built CompilerInvocation object. So we use it.
		// Only problem is: target options are not set correctly for the in-built object. We do it manually.
		// This below line is just to assert that the object exist.
		clang::CompilerInvocation& invocation = m_CompilerInstance.getInvocation();

		// Diagnostics is needed - set it up
		m_CompilerInstance.createDiagnostics();

		// set the include directories path
		clang::HeaderSearchOptions & headerSearchOptions = m_CompilerInstance.getHeaderSearchOpts();
		headerSearchOptions.AddPath("C:\\Program Files (x86)\\Microsoft Visual Studio 12.0\\VC\\include", clang::frontend::IncludeDirGroup::Angled, false, false);
		// headerSearchOptions.Verbose = true;

		// set few options
		clang::LangOptions& langOptions = m_CompilerInstance.getLangOpts();
		langOptions.CPlusPlus = 1;
		langOptions.Bool = 1;
		langOptions.RTTI = 0;
#if defined(_MSC_VER)
		langOptions.MicrosoftExt = 1;
		langOptions.MSVCCompat = 1;
		langOptions.MSBitfields = 1;
		langOptions.DelayedTemplateParsing = 1; // MSVC parses templates at the time of actual use
		m_CompilerInstance.getDiagnosticOpts().setFormat(clang::TextDiagnosticFormat::Msvc);
		//clInstance.getTargetOpts().ABI = "microsoft";
#endif

		// Need to set the source manager before AST
		m_CompilerInstance.createFileManager();
		m_CompilerInstance.createSourceManager(m_CompilerInstance.getFileManager());

		// Need to set the target before AST. Adjust the default target options and create a target
		m_CompilerInstance.getTargetOpts().Triple = llvm::sys::getProcessTriple();
		m_CompilerInstance.setTarget(clang::TargetInfo::CreateTargetInfo(m_CompilerInstance.getDiagnostics(), &m_CompilerInstance.getTargetOpts()));

		// Create pre-processor and AST Context
		m_CompilerInstance.createPreprocessor(clang::TranslationUnitKind::TU_Module);
		m_CompilerInstance.createASTContext();
		if (m_CompilerInstance.hasPreprocessor())
		{
			clang::Preprocessor & preprocessor = m_CompilerInstance.getPreprocessor();
			preprocessor.getBuiltinInfo().InitializeBuiltins(preprocessor.getIdentifierTable(), preprocessor.getLangOpts());
		}
	}

void c2ffi::init_ci(config &c, clang::CompilerInstance &ci) {
    using clang::DiagnosticOptions;
    using clang::TextDiagnosticPrinter;
    using clang::TargetOptions;
    using clang::TargetInfo;

    DiagnosticOptions *dopt = new DiagnosticOptions;
    TextDiagnosticPrinter *tpd =
        new TextDiagnosticPrinter(llvm::errs(), dopt, false);
    ci.createDiagnostics(tpd);

    std::shared_ptr<TargetOptions> pto =
        std::shared_ptr<TargetOptions>(new TargetOptions());
    if(c.arch == "")
        pto->Triple = llvm::sys::getDefaultTargetTriple();
    else
        pto->Triple = c.arch;

    TargetInfo *pti = TargetInfo::CreateTargetInfo(ci.getDiagnostics(), pto);

    clang::LangOptions &lo = ci.getLangOpts();
    switch(pti->getTriple().getEnvironment()) {
        case llvm::Triple::EnvironmentType::GNU:
            lo.GNUMode = 1;
            break;
        case llvm::Triple::EnvironmentType::MSVC:
            lo.MSVCCompat = 1;
            lo.MicrosoftExt = 1;
            break;
        default:
            std::cerr << "c2ffi warning: Unhandled environment: '"
                      << pti->getTriple().getEnvironmentName().str()
                      << "' for triple '" << c.arch
                      << "'" << std::endl;
    }
    ci.getInvocation().setLangDefaults(lo, c.kind, c.std);

    ci.setTarget(pti);
    ci.createFileManager();
    ci.createSourceManager(ci.getFileManager());
    ci.createPreprocessor(clang::TU_Complete);
    ci.getPreprocessorOpts().UsePredefines = false;
    ci.getPreprocessorOutputOpts().ShowCPP = c.preprocess_only;
    ci.getPreprocessor().setPreprocessedOutput(c.preprocess_only);
}

BlinkGCPluginConsumer::BlinkGCPluginConsumer(
    clang::CompilerInstance& instance,
    const BlinkGCPluginOptions& options)
    : instance_(instance),
      diagnostic_(instance.getDiagnostics()),
      options_(options),
      json_(0) {
  // Only check structures in the blink and WebKit namespaces.
  options_.checked_namespaces.insert("blink");

  // Ignore GC implementation files.
  options_.ignored_directories.push_back("/heap/");

  // Register warning/error messages.
  diag_class_must_left_mostly_derive_gc_ = diagnostic_.getCustomDiagID(
      getErrorLevel(), kClassMustLeftMostlyDeriveGC);
  diag_class_requires_trace_method_ =
      diagnostic_.getCustomDiagID(getErrorLevel(), kClassRequiresTraceMethod);
  diag_base_requires_tracing_ =
      diagnostic_.getCustomDiagID(getErrorLevel(), kBaseRequiresTracing);
  diag_fields_require_tracing_ =
      diagnostic_.getCustomDiagID(getErrorLevel(), kFieldsRequireTracing);
  diag_class_contains_invalid_fields_ = diagnostic_.getCustomDiagID(
      getErrorLevel(), kClassContainsInvalidFields);
  diag_class_contains_invalid_fields_warning_ = diagnostic_.getCustomDiagID(
      getErrorLevel(), kClassContainsInvalidFields);
  diag_class_contains_gc_root_ =
      diagnostic_.getCustomDiagID(getErrorLevel(), kClassContainsGCRoot);
  diag_class_requires_finalization_ = diagnostic_.getCustomDiagID(
      getErrorLevel(), kClassRequiresFinalization);
  diag_class_does_not_require_finalization_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Warning, kClassDoesNotRequireFinalization);
  diag_finalizer_accesses_finalized_field_ = diagnostic_.getCustomDiagID(
      getErrorLevel(), kFinalizerAccessesFinalizedField);
  diag_finalizer_eagerly_finalized_field_ = diagnostic_.getCustomDiagID(
      getErrorLevel(), kFinalizerAccessesEagerlyFinalizedField);
  diag_overridden_non_virtual_trace_ = diagnostic_.getCustomDiagID(
      getErrorLevel(), kOverriddenNonVirtualTrace);
  diag_missing_trace_dispatch_method_ = diagnostic_.getCustomDiagID(
      getErrorLevel(), kMissingTraceDispatchMethod);
  diag_missing_finalize_dispatch_method_ = diagnostic_.getCustomDiagID(
      getErrorLevel(), kMissingFinalizeDispatchMethod);
  diag_virtual_and_manual_dispatch_ =
      diagnostic_.getCustomDiagID(getErrorLevel(), kVirtualAndManualDispatch);
  diag_missing_trace_dispatch_ =
      diagnostic_.getCustomDiagID(getErrorLevel(), kMissingTraceDispatch);
  diag_missing_finalize_dispatch_ =
      diagnostic_.getCustomDiagID(getErrorLevel(), kMissingFinalizeDispatch);
  diag_derives_non_stack_allocated_ =
      diagnostic_.getCustomDiagID(getErrorLevel(), kDerivesNonStackAllocated);
  diag_class_overrides_new_ =
      diagnostic_.getCustomDiagID(getErrorLevel(), kClassOverridesNew);
  diag_class_declares_pure_virtual_trace_ = diagnostic_.getCustomDiagID(
      getErrorLevel(), kClassDeclaresPureVirtualTrace);
  diag_left_most_base_must_be_polymorphic_ = diagnostic_.getCustomDiagID(
      getErrorLevel(), kLeftMostBaseMustBePolymorphic);
  diag_base_class_must_declare_virtual_trace_ = diagnostic_.getCustomDiagID(
      getErrorLevel(), kBaseClassMustDeclareVirtualTrace);

  // Register note messages.
  diag_base_requires_tracing_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kBaseRequiresTracingNote);
  diag_field_requires_tracing_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kFieldRequiresTracingNote);
  diag_raw_ptr_to_gc_managed_class_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kRawPtrToGCManagedClassNote);
  diag_ref_ptr_to_gc_managed_class_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kRefPtrToGCManagedClassNote);
  diag_reference_ptr_to_gc_managed_class_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kReferencePtrToGCManagedClassNote);
  diag_own_ptr_to_gc_managed_class_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kOwnPtrToGCManagedClassNote);
  diag_member_to_gc_unmanaged_class_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kMemberToGCUnmanagedClassNote);
  diag_stack_allocated_field_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kStackAllocatedFieldNote);
  diag_member_in_unmanaged_class_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kMemberInUnmanagedClassNote);
  diag_part_object_to_gc_derived_class_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kPartObjectToGCDerivedClassNote);
  diag_part_object_contains_gc_root_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kPartObjectContainsGCRootNote);
  diag_field_contains_gc_root_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kFieldContainsGCRootNote);
  diag_finalized_field_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kFinalizedFieldNote);
  diag_eagerly_finalized_field_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kEagerlyFinalizedFieldNote);
  diag_user_declared_destructor_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kUserDeclaredDestructorNote);
  diag_user_declared_finalizer_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kUserDeclaredFinalizerNote);
  diag_base_requires_finalization_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kBaseRequiresFinalizationNote);
  diag_field_requires_finalization_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kFieldRequiresFinalizationNote);
  diag_overridden_non_virtual_trace_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kOverriddenNonVirtualTraceNote);
  diag_manual_dispatch_method_note_ = diagnostic_.getCustomDiagID(
      DiagnosticsEngine::Note, kManualDispatchMethodNote);
//.........这里部分代码省略.........

	virtual std::unique_ptr<clang::ASTConsumer> CreateASTConsumer(
		clang::CompilerInstance &Compiler, llvm::StringRef InFile) 
	{
		return std::unique_ptr<clang::ASTConsumer>(new fxc::Driver(Compiler.getASTContext(), Compiler.getDiagnostics()));
	}