// Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file // for details. All rights reserved. Use of this source code is governed by a // BSD-style license that can be found in the LICENSE file. #include "vm/kernel_reader.h" #include #include "vm/dart_api_impl.h" #include "vm/longjump.h" #include "vm/object_store.h" #include "vm/parser.h" #include "vm/symbols.h" namespace dart { namespace kernel { #define Z (zone_) #define I (isolate_) #define T (type_translator_) #define H (translation_helper_) class SimpleExpressionConverter : public ExpressionVisitor { public: SimpleExpressionConverter(Thread* thread, Zone* zone) : translation_helper_(thread, zone, NULL), zone_(zone), is_simple_(false), simple_value_(NULL) {} virtual void VisitDefaultExpression(Expression* node) { is_simple_ = false; } virtual void VisitIntLiteral(IntLiteral* node) { is_simple_ = true; simple_value_ = &Integer::ZoneHandle(Z, Integer::New(node->value(), Heap::kOld)); *simple_value_ = H.Canonicalize(*simple_value_); } virtual void VisitBigintLiteral(BigintLiteral* node) { is_simple_ = true; simple_value_ = &Integer::ZoneHandle( Z, Integer::New(H.DartString(node->value(), Heap::kOld))); *simple_value_ = H.Canonicalize(*simple_value_); } virtual void VisitDoubleLiteral(DoubleLiteral* node) { is_simple_ = true; simple_value_ = &Double::ZoneHandle( Z, Double::New(H.DartString(node->value()), Heap::kOld)); *simple_value_ = H.Canonicalize(*simple_value_); } virtual void VisitBoolLiteral(BoolLiteral* node) { is_simple_ = true; simple_value_ = &Bool::Handle(Z, Bool::Get(node->value()).raw()); } virtual void VisitNullLiteral(NullLiteral* node) { is_simple_ = true; simple_value_ = &dart::Instance::ZoneHandle(Z, dart::Instance::null()); } virtual void VisitStringLiteral(StringLiteral* node) { is_simple_ = true; simple_value_ = &H.DartSymbol(node->value()); } bool IsSimple(Expression* expression) { expression->AcceptExpressionVisitor(this); return is_simple_; } const dart::Instance& SimpleValue() { return *simple_value_; } dart::Zone* zone() const { return zone_; } private: TranslationHelper translation_helper_; dart::Zone* zone_; bool is_simple_; dart::Instance* simple_value_; }; void BuildingTranslationHelper::SetFinalize(bool finalize) { reader_->finalize_ = finalize; } RawLibrary* BuildingTranslationHelper::LookupLibraryByKernelLibrary( Library* library) { return reader_->LookupLibrary(library).raw(); } RawClass* BuildingTranslationHelper::LookupClassByKernelClass(Class* klass) { return reader_->LookupClass(klass).raw(); } Object& KernelReader::ReadProgram() { ASSERT(!bootstrapping_); Program* program = ReadPrecompiledKernelFromBuffer(buffer_, buffer_length_); if (program == NULL) { const dart::String& error = H.DartString("Failed to read .kernell file"); return Object::Handle(Z, ApiError::New(error)); } LongJumpScope jump; if (setjmp(*jump.Set()) == 0) { Procedure* main = program->main_method(); Library* kernel_main_library = Library::Cast(main->parent()); intptr_t length = program->libraries().length(); for (intptr_t i = 0; i < length; i++) { Library* kernel_library = program->libraries()[i]; ReadLibrary(kernel_library); } // We finalize classes after we've constructed all classes since we // currently don't construct them in pre-order of the class hierarchy (and // finalization of a class needs all of its superclasses to be finalized). dart::String& name = dart::String::Handle(Z); for (intptr_t i = 0; i < length; i++) { Library* kernel_library = program->libraries()[i]; dart::Library& library = LookupLibrary(kernel_library); name = library.url(); // TODO(27590) unskip this library when we fix underlying issue. if (name.Equals("dart:vmservice_io")) { continue; } if (!library.Loaded()) { dart::Class& klass = dart::Class::Handle(Z); for (intptr_t i = 0; i < kernel_library->classes().length(); i++) { klass = LookupClass(kernel_library->classes()[i]).raw(); ClassFinalizer::FinalizeTypesInClass(klass); ClassFinalizer::FinalizeClass(klass); } library.SetLoaded(); } } dart::Library& library = LookupLibrary(kernel_main_library); // Sanity check that we can find the main entrypoint. Object& main_obj = Object::Handle( Z, library.LookupObjectAllowPrivate(H.DartSymbol("main"))); ASSERT(!main_obj.IsNull()); return library; } else { // Everything else is a compile-time error. We don't use the [error] since // it sometimes causes the higher-level error handling to try to read the // script and token position (which we don't have) to produce a nice error // message. Error& error = Error::Handle(Z); error = thread_->sticky_error(); thread_->clear_sticky_error(); // Instead we simply make a non-informative error message. const dart::String& error_message = H.DartString("Failed to read .kernell file => CompileTimeError."); return Object::Handle(Z, LanguageError::New(error_message)); } } void KernelReader::ReadLibrary(Library* kernel_library) { dart::Library& library = LookupLibrary(kernel_library); if (library.Loaded()) return; // The bootstrapper will take care of creating the native wrapper classes, but // we will add the synthetic constructors to them here. if (library.name() == Symbols::Symbol(Symbols::kDartNativeWrappersLibNameId).raw()) { ASSERT(library.LoadInProgress()); } else { library.SetLoadInProgress(); } // Setup toplevel class (which contains library fields/procedures). // TODO(27590): Figure out why we need this script stuff here. Script& script = Script::Handle( Z, Script::New(H.DartString(""), H.DartString(""), RawScript::kScriptTag)); script.SetLocationOffset(0, 0); script.Tokenize(H.DartString("nop() {}")); dart::Class& toplevel_class = dart::Class::Handle(Z, dart::Class::New( library, Symbols::TopLevel(), script, TokenPosition::kNoSource)); toplevel_class.set_is_cycle_free(); library.set_toplevel_class(toplevel_class); if (bootstrapping_) { GrowableObjectArray::Handle(Z, I->object_store()->pending_classes()) .Add(toplevel_class, Heap::kOld); } ActiveClassScope active_class_scope(&active_class_, NULL, &toplevel_class); // Load toplevel fields. for (intptr_t i = 0; i < kernel_library->fields().length(); i++) { Field* kernel_field = kernel_library->fields()[i]; ActiveMemberScope active_member_scope(&active_class_, kernel_field); const dart::String& name = H.DartFieldName(kernel_field->name()); dart::Field& field = dart::Field::Handle( Z, dart::Field::NewTopLevel(name, kernel_field->IsFinal(), kernel_field->IsConst(), toplevel_class, TokenPosition::kNoSource)); field.set_kernel_field(kernel_field); const AbstractType& type = T.TranslateType(kernel_field->type()); field.SetFieldType(type); field.set_has_initializer(kernel_field->initializer() != NULL); GenerateFieldAccessors(toplevel_class, field, kernel_field); toplevel_class.AddField(field); library.AddObject(field, name); } // Load toplevel procedures. for (intptr_t i = 0; i < kernel_library->procedures().length(); i++) { Procedure* kernel_procedure = kernel_library->procedures()[i]; ReadProcedure(library, toplevel_class, kernel_procedure); } // Load all classes. for (intptr_t i = 0; i < kernel_library->classes().length(); i++) { Class* kernel_klass = kernel_library->classes()[i]; ReadClass(library, kernel_klass); } } void KernelReader::ReadPreliminaryClass(dart::Class* klass, Class* kernel_klass) { ActiveClassScope active_class_scope(&active_class_, kernel_klass, klass); // First setup the type parameters, so if any of the following code uses it // (in a recursive way) we're fine. TypeArguments& type_parameters = TypeArguments::Handle(Z, TypeArguments::null()); intptr_t num_type_parameters = kernel_klass->type_parameters().length(); if (num_type_parameters > 0) { dart::TypeParameter& parameter = dart::TypeParameter::Handle(Z); Type& null_bound = Type::Handle(Z, Type::null()); // Step a) Create array of [TypeParameter] objects (without bound). type_parameters = TypeArguments::New(num_type_parameters); for (intptr_t i = 0; i < num_type_parameters; i++) { parameter = dart::TypeParameter::New( *klass, Function::Handle(Z), i, H.DartSymbol(kernel_klass->type_parameters()[i]->name()), null_bound, TokenPosition::kNoSource); type_parameters.SetTypeAt(i, parameter); } klass->set_type_parameters(type_parameters); // Step b) Fill in the bounds of all [TypeParameter]s. for (intptr_t i = 0; i < num_type_parameters; i++) { TypeParameter* kernel_parameter = kernel_klass->type_parameters()[i]; // There is no dynamic bound, only Object. // TODO(27590): Should we fix this in the kernel IR generator? if (kernel_parameter->bound()->IsDynamicType()) { parameter ^= type_parameters.TypeAt(i); parameter.set_bound(Type::Handle(Z, I->object_store()->object_type())); } else { AbstractType& bound = T.TranslateTypeWithoutFinalization(kernel_parameter->bound()); if (bound.IsMalformedOrMalbounded()) { bound = I->object_store()->object_type(); } parameter ^= type_parameters.TypeAt(i); parameter.set_bound(bound); } } } if (kernel_klass->IsNormalClass()) { NormalClass* kernel_normal_class = NormalClass::Cast(kernel_klass); // Set super type. Some classes (e.g., Object) do not have one. if (kernel_normal_class->super_class() != NULL) { AbstractType& super_type = T.TranslateTypeWithoutFinalization( kernel_normal_class->super_class()); if (super_type.IsMalformed()) H.ReportError("Malformed super type"); klass->set_super_type(super_type); } } else { MixinClass* kernel_mixin = MixinClass::Cast(kernel_klass); // Set super type. AbstractType& super_type = T.TranslateTypeWithoutFinalization(kernel_mixin->first()); if (super_type.IsMalformed()) H.ReportError("Malformed super type."); klass->set_super_type(super_type); // Tell the rest of the system there is nothing to resolve. super_type.SetIsResolved(); // Set mixin type. AbstractType& mixin_type = T.TranslateTypeWithoutFinalization(kernel_mixin->second()); if (mixin_type.IsMalformed()) H.ReportError("Malformed mixin type."); klass->set_mixin(Type::Cast(mixin_type)); } // Build implemented interface types intptr_t interface_count = kernel_klass->implemented_classes().length(); const dart::Array& interfaces = dart::Array::Handle(Z, dart::Array::New(interface_count)); dart::Class& interface_class = dart::Class::Handle(Z); for (intptr_t i = 0; i < interface_count; i++) { InterfaceType* kernel_interface_type = kernel_klass->implemented_classes()[i]; const AbstractType& type = T.TranslateTypeWithoutFinalization(kernel_interface_type); if (type.IsMalformed()) H.ReportError("Malformed interface type."); interfaces.SetAt(i, type); // NOTE: Normally the DartVM keeps a list of pending classes and iterates // through them later on using `ClassFinalizer::ProcessPendingClasses()`. // This involes calling `ClassFinalizer::ResolveSuperTypeAndInterfaces()` // which does a lot of error validation (e.g. cycle checks) which we don't // need here. But we do need to do one thing which this resolving phase // normally does for us: set the `is_implemented` boolean. // TODO(27590): Maybe we can do this differently once we have // "bootstrapping from kernel"-support. interface_class = type.type_class(); interface_class.set_is_implemented(); } klass->set_interfaces(interfaces); if (kernel_klass->is_abstract()) klass->set_is_abstract(); klass->set_is_cycle_free(); // When bootstrapping we should not finalize types yet because they will be // finalized when the object store's pending_classes list is drained by // ClassFinalizer::ProcessPendingClasses. Even when not bootstrapping we are // careful not to eagerly finalize types that may introduce a circularity // (such as type arguments, interface types, field types, etc.). if (finalize_) ClassFinalizer::FinalizeTypesInClass(*klass); } void KernelReader::ReadClass(const dart::Library& library, Class* kernel_klass) { // This will trigger a call to [ReadPreliminaryClass] if not already done. dart::Class& klass = LookupClass(kernel_klass); ActiveClassScope active_class_scope(&active_class_, kernel_klass, &klass); TokenPosition pos(0); for (intptr_t i = 0; i < kernel_klass->fields().length(); i++) { Field* kernel_field = kernel_klass->fields()[i]; ActiveMemberScope active_member_scope(&active_class_, kernel_field); const dart::String& name = H.DartFieldName(kernel_field->name()); const AbstractType& type = T.TranslateTypeWithoutFinalization(kernel_field->type()); dart::Field& field = dart::Field::Handle( Z, dart::Field::New(name, kernel_field->IsStatic(), // In the VM all const fields are implicitly final // whereas in Kernel they are not final because they // are not explicitly declared that way. kernel_field->IsFinal() || kernel_field->IsConst(), kernel_field->IsConst(), false, // is_reflectable klass, type, pos)); field.set_kernel_field(kernel_field); field.set_has_initializer(kernel_field->initializer() != NULL); GenerateFieldAccessors(klass, field, kernel_field); klass.AddField(field); } for (intptr_t i = 0; i < kernel_klass->constructors().length(); i++) { Constructor* kernel_constructor = kernel_klass->constructors()[i]; ActiveMemberScope active_member_scope(&active_class_, kernel_constructor); ActiveFunctionScope active_function_scope(&active_class_, kernel_constructor->function()); const dart::String& name = H.DartConstructorName(kernel_constructor); Function& function = dart::Function::ZoneHandle( Z, dart::Function::New(name, RawFunction::kConstructor, false, // is_static kernel_constructor->IsConst(), false, // is_abstract kernel_constructor->IsExternal(), false, // is_native klass, pos)); klass.AddFunction(function); function.set_kernel_function(kernel_constructor); function.set_result_type(T.ReceiverType(klass)); SetupFunctionParameters(H, T, klass, function, kernel_constructor->function(), true, // is_method false); // is_closure } for (intptr_t i = 0; i < kernel_klass->procedures().length(); i++) { Procedure* kernel_procedure = kernel_klass->procedures()[i]; ActiveMemberScope active_member_scope(&active_class_, kernel_procedure); ReadProcedure(library, klass, kernel_procedure, kernel_klass); } if (bootstrapping_ && !klass.is_marked_for_parsing()) { klass.set_is_marked_for_parsing(); GrowableObjectArray::Handle(Z, I->object_store()->pending_classes()) .Add(klass, Heap::kOld); } } void KernelReader::ReadProcedure(const dart::Library& library, const dart::Class& owner, Procedure* kernel_procedure, Class* kernel_klass) { ActiveClassScope active_class_scope(&active_class_, kernel_klass, &owner); ActiveMemberScope active_member_scope(&active_class_, kernel_procedure); ActiveFunctionScope active_function_scope(&active_class_, kernel_procedure->function()); const dart::String& name = H.DartProcedureName(kernel_procedure); TokenPosition pos(0); bool is_method = kernel_klass != NULL && !kernel_procedure->IsStatic(); bool is_abstract = kernel_procedure->IsAbstract(); bool is_external = kernel_procedure->IsExternal(); dart::String* native_name = NULL; if (is_external) { // Maybe it has a native implementation, which is not external as far as // the VM is concerned because it does have an implementation. Check for // an ExternalName annotation and extract the string from it. for (int i = 0; i < kernel_procedure->annotations().length(); ++i) { Expression* annotation = kernel_procedure->annotations()[i]; if (!annotation->IsConstructorInvocation()) continue; ConstructorInvocation* invocation = ConstructorInvocation::Cast(annotation); Class* annotation_class = Class::Cast(invocation->target()->parent()); String* class_name = annotation_class->name(); // Just compare by name, do not generate the annotation class. int length = sizeof("ExternalName") - 1; if (class_name->size() != length) continue; if (memcmp(class_name->buffer(), "ExternalName", length) != 0) continue; String* library_name = annotation_class->parent()->name(); length = sizeof("dart._internal") - 1; if (library_name->size() != length) continue; if (memcmp(library_name->buffer(), "dart._internal", length) != 0) { continue; } is_external = false; ASSERT(invocation->arguments()->positional().length() == 1 && invocation->arguments()->named().length() == 0); StringLiteral* literal = StringLiteral::Cast(invocation->arguments()->positional()[0]); native_name = &H.DartSymbol(literal->value()); break; } } dart::Function& function = dart::Function::ZoneHandle( Z, Function::New(name, GetFunctionType(kernel_procedure), !is_method, // is_static false, // is_const is_abstract, is_external, native_name != NULL, // is_native owner, pos)); owner.AddFunction(function); function.set_kernel_function(kernel_procedure); function.set_is_debuggable(false); if (native_name != NULL) { function.set_native_name(*native_name); } SetupFunctionParameters(H, T, owner, function, kernel_procedure->function(), is_method, false); // is_closure if (kernel_klass == NULL) { library.AddObject(function, name); ASSERT(!Object::Handle(Z, library.LookupObjectAllowPrivate( H.DartProcedureName(kernel_procedure))) .IsNull()); } } void KernelReader::GenerateFieldAccessors(const dart::Class& klass, const dart::Field& field, Field* kernel_field) { TokenPosition pos(0); if (kernel_field->IsStatic() && kernel_field->initializer() != NULL) { // Static fields with initializers either have the static value set to the // initializer value if it is simple enough or else set to an uninitialized // sentinel. SimpleExpressionConverter converter(H.thread(), Z); if (converter.IsSimple(kernel_field->initializer())) { // We do not need a getter. field.SetStaticValue(converter.SimpleValue(), true); return; } // We do need a getter that evaluates the initializer if necessary. field.SetStaticValue(Object::sentinel(), true); } const dart::String& getter_name = H.DartGetterName(kernel_field->name()); Function& getter = Function::ZoneHandle( Z, Function::New( getter_name, kernel_field->IsStatic() ? RawFunction::kImplicitStaticFinalGetter : RawFunction::kImplicitGetter, kernel_field->IsStatic(), // The functions created by the parser have is_const for static fields // that are const (not just final) and they have is_const for // non-static // fields that are final. kernel_field->IsStatic() ? kernel_field->IsConst() : kernel_field->IsFinal(), false, // is_abstract false, // is_external false, // is_native klass, pos)); klass.AddFunction(getter); if (klass.IsTopLevel()) { dart::Library& library = dart::Library::Handle(Z, klass.library()); library.AddObject(getter, getter_name); } getter.set_kernel_function(kernel_field); getter.set_result_type(AbstractType::Handle(Z, field.type())); getter.set_is_debuggable(false); SetupFieldAccessorFunction(klass, getter); if (!kernel_field->IsStatic() && !kernel_field->IsFinal()) { // Only static fields can be const. ASSERT(!kernel_field->IsConst()); const dart::String& setter_name = H.DartSetterName(kernel_field->name()); Function& setter = Function::ZoneHandle( Z, Function::New(setter_name, RawFunction::kImplicitSetter, false, // is_static false, // is_const false, // is_abstract false, // is_external false, // is_native klass, pos)); klass.AddFunction(setter); setter.set_kernel_function(kernel_field); setter.set_result_type(Object::void_type()); setter.set_is_debuggable(false); SetupFieldAccessorFunction(klass, setter); } } void KernelReader::SetupFunctionParameters(TranslationHelper translation_helper, DartTypeTranslator type_translator, const dart::Class& klass, const dart::Function& function, FunctionNode* node, bool is_method, bool is_closure) { dart::Zone* zone = translation_helper.zone(); ASSERT(!(is_method && is_closure)); bool is_factory = function.IsFactory(); intptr_t extra_parameters = (is_method || is_closure || is_factory) ? 1 : 0; function.set_num_fixed_parameters(extra_parameters + node->required_parameter_count()); if (node->named_parameters().length() > 0) { function.SetNumOptionalParameters(node->named_parameters().length(), false); } else { function.SetNumOptionalParameters(node->positional_parameters().length() - node->required_parameter_count(), true); } intptr_t num_parameters = extra_parameters + node->positional_parameters().length() + node->named_parameters().length(); function.set_parameter_types( Array::Handle(zone, Array::New(num_parameters, Heap::kOld))); function.set_parameter_names( Array::Handle(zone, Array::New(num_parameters, Heap::kOld))); intptr_t pos = 0; if (is_method) { ASSERT(!klass.IsNull()); function.SetParameterTypeAt(pos, translation_helper.GetCanonicalType(klass)); function.SetParameterNameAt(pos, Symbols::This()); pos++; } else if (is_closure) { function.SetParameterTypeAt(pos, AbstractType::dynamic_type()); function.SetParameterNameAt(pos, Symbols::ClosureParameter()); pos++; } else if (is_factory) { function.SetParameterTypeAt(pos, AbstractType::dynamic_type()); function.SetParameterNameAt(pos, Symbols::TypeArgumentsParameter()); pos++; } for (intptr_t i = 0; i < node->positional_parameters().length(); i++, pos++) { VariableDeclaration* kernel_variable = node->positional_parameters()[i]; const AbstractType& type = type_translator.TranslateType(kernel_variable->type()); function.SetParameterTypeAt( pos, type.IsMalformed() ? Type::dynamic_type() : type); function.SetParameterNameAt( pos, translation_helper.DartSymbol(kernel_variable->name())); } for (intptr_t i = 0; i < node->named_parameters().length(); i++, pos++) { VariableDeclaration* named_expression = node->named_parameters()[i]; const AbstractType& type = type_translator.TranslateType(named_expression->type()); function.SetParameterTypeAt( pos, type.IsMalformed() ? Type::dynamic_type() : type); function.SetParameterNameAt( pos, translation_helper.DartSymbol(named_expression->name())); } const AbstractType& return_type = type_translator.TranslateType(node->return_type()); function.set_result_type(return_type.IsMalformed() ? Type::dynamic_type() : return_type); } void KernelReader::SetupFieldAccessorFunction(const dart::Class& klass, const dart::Function& function) { bool is_setter = function.IsImplicitSetterFunction(); bool is_method = !function.IsStaticFunction(); intptr_t num_parameters = (is_method ? 1 : 0) + (is_setter ? 1 : 0); function.SetNumOptionalParameters(0, false); function.set_num_fixed_parameters(num_parameters); function.set_parameter_types( Array::Handle(Z, Array::New(num_parameters, Heap::kOld))); function.set_parameter_names( Array::Handle(Z, Array::New(num_parameters, Heap::kOld))); intptr_t pos = 0; if (is_method) { function.SetParameterTypeAt(pos, T.ReceiverType(klass)); function.SetParameterNameAt(pos, Symbols::This()); pos++; } if (is_setter) { function.SetParameterTypeAt(pos, AbstractType::dynamic_type()); function.SetParameterNameAt(pos, Symbols::Value()); pos++; } } dart::Library& KernelReader::LookupLibrary(Library* library) { dart::Library* handle = NULL; if (!libraries_.Lookup(library, &handle)) { const dart::String& url = H.DartSymbol(library->import_uri()); handle = &dart::Library::Handle(Z, dart::Library::LookupLibrary(thread_, url)); if (handle->IsNull()) { *handle = dart::Library::New(url); handle->Register(thread_); } ASSERT(!handle->IsNull()); libraries_.Insert(library, handle); } return *handle; } dart::Class& KernelReader::LookupClass(Class* klass) { dart::Class* handle = NULL; if (!classes_.Lookup(klass, &handle)) { dart::Library& library = LookupLibrary(klass->parent()); const dart::String& name = H.DartClassName(klass); handle = &dart::Class::Handle(Z, library.LookupClass(name)); if (handle->IsNull()) { // The class needs to have a script because all the functions in the class // will inherit it. The predicate Function::IsOptimizable uses the // absence of a script to detect test functions that should not be // optimized. Use a dummy script. // // TODO(27590): We shouldn't need a dummy script per class. At the // least we could have a singleton. At best, we'd change IsOptimizable to // detect test functions some other way (like simply not setting the // optimizable bit on those functions in the first place). TokenPosition pos(0); Script& script = Script::Handle(Z, Script::New(H.DartString(""), H.DartString(""), RawScript::kScriptTag)); handle = &dart::Class::Handle(Z, dart::Class::New(library, name, script, pos)); library.AddClass(*handle); } else if (handle->script() == Script::null()) { // When bootstrapping we can encounter classes that do not yet have a // dummy script. TokenPosition pos(0); Script& script = Script::Handle(Z, Script::New(H.DartString(""), H.DartString(""), RawScript::kScriptTag)); handle->set_script(script); } // Insert the class in the cache before calling ReadPreliminaryClass so // we do not risk allocating the class again by calling LookupClass // recursively from ReadPreliminaryClass for the same class. classes_.Insert(klass, handle); if (!handle->is_type_finalized()) { ReadPreliminaryClass(handle, klass); } } return *handle; } RawFunction::Kind KernelReader::GetFunctionType(Procedure* kernel_procedure) { intptr_t lookuptable[] = { RawFunction::kRegularFunction, // Procedure::kMethod RawFunction::kGetterFunction, // Procedure::kGetter RawFunction::kSetterFunction, // Procedure::kSetter RawFunction::kRegularFunction, // Procedure::kOperator RawFunction::kConstructor, // Procedure::kFactory }; intptr_t kind = static_cast(kernel_procedure->kind()); if (kind == Procedure::kIncompleteProcedure) { return RawFunction::kSignatureFunction; } else { ASSERT(0 <= kind && kind <= Procedure::kFactory); return static_cast(lookuptable[kind]); } } } // namespace kernel } // namespace dart