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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/object.h" | 5 #include "vm/object.h" |
6 | 6 |
7 #include "include/dart_api.h" | 7 #include "include/dart_api.h" |
8 #include "platform/assert.h" | 8 #include "platform/assert.h" |
9 #include "vm/assembler.h" | 9 #include "vm/assembler.h" |
10 #include "vm/become.h" | 10 #include "vm/become.h" |
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6882 if (!HasInstantiatedSignature(kCurrentClass)) { | 6882 if (!HasInstantiatedSignature(kCurrentClass)) { |
6883 instantiator_type_arguments = receiver.GetTypeArguments(); | 6883 instantiator_type_arguments = receiver.GetTypeArguments(); |
6884 } | 6884 } |
6885 if (!HasInstantiatedSignature(kFunctions)) { | 6885 if (!HasInstantiatedSignature(kFunctions)) { |
6886 function_type_arguments = Object::empty_type_arguments().raw(); | 6886 function_type_arguments = Object::empty_type_arguments().raw(); |
6887 } | 6887 } |
6888 return Closure::New(instantiator_type_arguments, function_type_arguments, | 6888 return Closure::New(instantiator_type_arguments, function_type_arguments, |
6889 *this, context); | 6889 *this, context); |
6890 } | 6890 } |
6891 | 6891 |
6892 intptr_t Function::ComputeClosureHash() const { | 6892 RawSmi* Function::GetClosureHashCode() const { |
6893 ASSERT(IsClosureFunction()); | 6893 ASSERT(IsClosureFunction()); |
| 6894 const Object& obj = Object::Handle(raw_ptr()->data_); |
| 6895 ASSERT(!obj.IsNull()); |
| 6896 if (ClosureData::Cast(obj).hash() != Object::null()) { |
| 6897 return Smi::RawCast(ClosureData::Cast(obj).hash()); |
| 6898 } |
| 6899 // Hash not yet computed. Compute and cache it. |
6894 const Class& cls = Class::Handle(Owner()); | 6900 const Class& cls = Class::Handle(Owner()); |
6895 intptr_t result = String::Handle(name()).Hash(); | 6901 intptr_t result = String::Handle(name()).Hash(); |
6896 result += String::Handle(Signature()).Hash(); | 6902 result += String::Handle(Signature()).Hash(); |
6897 result += String::Handle(cls.Name()).Hash(); | 6903 result += String::Handle(cls.Name()).Hash(); |
6898 return result; | 6904 // Finalize hash value like for strings so that it fits into a smi. |
| 6905 result += result << 3; |
| 6906 result ^= result >> 11; |
| 6907 result += result << 15; |
| 6908 result &= ((static_cast<intptr_t>(1) << String::kHashBits) - 1); |
| 6909 ClosureData::Cast(obj).set_hash(result); |
| 6910 return Smi::New(result); |
6899 } | 6911 } |
6900 | 6912 |
6901 RawString* Function::BuildSignature(NameVisibility name_visibility) const { | 6913 RawString* Function::BuildSignature(NameVisibility name_visibility) const { |
6902 Thread* thread = Thread::Current(); | 6914 Thread* thread = Thread::Current(); |
6903 Zone* zone = thread->zone(); | 6915 Zone* zone = thread->zone(); |
6904 GrowableHandlePtrArray<const String> pieces(zone, 4); | 6916 GrowableHandlePtrArray<const String> pieces(zone, 4); |
6905 String& name = String::Handle(zone); | 6917 String& name = String::Handle(zone); |
6906 if (FLAG_reify_generic_functions) { | 6918 if (FLAG_reify_generic_functions) { |
6907 const TypeArguments& type_params = | 6919 const TypeArguments& type_params = |
6908 TypeArguments::Handle(zone, type_parameters()); | 6920 TypeArguments::Handle(zone, type_parameters()); |
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7308 void ClosureData::set_context_scope(const ContextScope& value) const { | 7320 void ClosureData::set_context_scope(const ContextScope& value) const { |
7309 StorePointer(&raw_ptr()->context_scope_, value.raw()); | 7321 StorePointer(&raw_ptr()->context_scope_, value.raw()); |
7310 } | 7322 } |
7311 | 7323 |
7312 void ClosureData::set_implicit_static_closure(const Instance& closure) const { | 7324 void ClosureData::set_implicit_static_closure(const Instance& closure) const { |
7313 ASSERT(!closure.IsNull()); | 7325 ASSERT(!closure.IsNull()); |
7314 ASSERT(raw_ptr()->closure_ == Instance::null()); | 7326 ASSERT(raw_ptr()->closure_ == Instance::null()); |
7315 StorePointer(&raw_ptr()->closure_, closure.raw()); | 7327 StorePointer(&raw_ptr()->closure_, closure.raw()); |
7316 } | 7328 } |
7317 | 7329 |
| 7330 void ClosureData::set_hash(intptr_t value) const { |
| 7331 StorePointer(&raw_ptr()->hash_, static_cast<RawObject*>(Smi::New(value))); |
| 7332 } |
| 7333 |
7318 void ClosureData::set_parent_function(const Function& value) const { | 7334 void ClosureData::set_parent_function(const Function& value) const { |
7319 StorePointer(&raw_ptr()->parent_function_, value.raw()); | 7335 StorePointer(&raw_ptr()->parent_function_, value.raw()); |
7320 } | 7336 } |
7321 | 7337 |
7322 void ClosureData::set_signature_type(const Type& value) const { | 7338 void ClosureData::set_signature_type(const Type& value) const { |
7323 StorePointer(&raw_ptr()->signature_type_, value.raw()); | 7339 StorePointer(&raw_ptr()->signature_type_, value.raw()); |
7324 } | 7340 } |
7325 | 7341 |
7326 RawClosureData* ClosureData::New() { | 7342 RawClosureData* ClosureData::New() { |
7327 ASSERT(Object::closure_data_class() != Class::null()); | 7343 ASSERT(Object::closure_data_class() != Class::null()); |
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14857 } | 14873 } |
14858 return DartEntry::InvokeFunction(eval_func, args); | 14874 return DartEntry::InvokeFunction(eval_func, args); |
14859 } | 14875 } |
14860 | 14876 |
14861 RawObject* Instance::HashCode() const { | 14877 RawObject* Instance::HashCode() const { |
14862 // TODO(koda): Optimize for all builtin classes and all classes | 14878 // TODO(koda): Optimize for all builtin classes and all classes |
14863 // that do not override hashCode. | 14879 // that do not override hashCode. |
14864 return DartLibraryCalls::HashCode(*this); | 14880 return DartLibraryCalls::HashCode(*this); |
14865 } | 14881 } |
14866 | 14882 |
14867 RawObject* Instance::IdentityHashCode() const { | |
14868 return DartLibraryCalls::IdentityHashCode(*this); | |
14869 } | |
14870 | |
14871 bool Instance::CanonicalizeEquals(const Instance& other) const { | 14883 bool Instance::CanonicalizeEquals(const Instance& other) const { |
14872 if (this->raw() == other.raw()) { | 14884 if (this->raw() == other.raw()) { |
14873 return true; // "===". | 14885 return true; // "===". |
14874 } | 14886 } |
14875 | 14887 |
14876 if (other.IsNull() || (this->clazz() != other.clazz())) { | 14888 if (other.IsNull() || (this->clazz() != other.clazz())) { |
14877 return false; | 14889 return false; |
14878 } | 14890 } |
14879 | 14891 |
14880 { | 14892 { |
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21650 const char* Closure::ToCString() const { | 21662 const char* Closure::ToCString() const { |
21651 const Function& fun = Function::Handle(function()); | 21663 const Function& fun = Function::Handle(function()); |
21652 const bool is_implicit_closure = fun.IsImplicitClosureFunction(); | 21664 const bool is_implicit_closure = fun.IsImplicitClosureFunction(); |
21653 const char* fun_sig = String::Handle(fun.UserVisibleSignature()).ToCString(); | 21665 const char* fun_sig = String::Handle(fun.UserVisibleSignature()).ToCString(); |
21654 const char* from = is_implicit_closure ? " from " : ""; | 21666 const char* from = is_implicit_closure ? " from " : ""; |
21655 const char* fun_desc = is_implicit_closure ? fun.ToCString() : ""; | 21667 const char* fun_desc = is_implicit_closure ? fun.ToCString() : ""; |
21656 return OS::SCreate(Thread::Current()->zone(), "Closure: %s%s%s", fun_sig, | 21668 return OS::SCreate(Thread::Current()->zone(), "Closure: %s%s%s", fun_sig, |
21657 from, fun_desc); | 21669 from, fun_desc); |
21658 } | 21670 } |
21659 | 21671 |
21660 int64_t Closure::ComputeHash() const { | |
21661 const Function& func = Function::Handle(function()); | |
21662 uint32_t result = 0; | |
21663 if (func.IsImplicitInstanceClosureFunction()) { | |
21664 // Implicit instance closures are not unqiue, so combine function's hash | |
21665 // code with identityHashCode of cached receiver. | |
21666 result = static_cast<uint32_t>(func.ComputeClosureHash()); | |
21667 const Context& context = Context::Handle(this->context()); | |
21668 const Object& receiver = Object::Handle(context.At(0)); | |
21669 const Object& receiverHash = | |
21670 Object::Handle(Instance::Cast(receiver).IdentityHashCode()); | |
21671 if (receiverHash.IsError()) { | |
21672 Exceptions::PropagateError(Error::Cast(receiverHash)); | |
21673 UNREACHABLE(); | |
21674 } | |
21675 result = CombineHashes( | |
21676 result, Integer::Cast(receiverHash).AsTruncatedUint32Value()); | |
21677 } else { | |
21678 // Explicit closures and implicit static closures are unique, | |
21679 // so identityHashCode of closure object is good enough. | |
21680 const Object& identityHash = Object::Handle(this->IdentityHashCode()); | |
21681 if (identityHash.IsError()) { | |
21682 Exceptions::PropagateError(Error::Cast(identityHash)); | |
21683 UNREACHABLE(); | |
21684 } | |
21685 result = Integer::Cast(identityHash).AsTruncatedUint32Value(); | |
21686 } | |
21687 return FinalizeHash(result, String::kHashBits); | |
21688 } | |
21689 | |
21690 RawClosure* Closure::New(const TypeArguments& instantiator_type_arguments, | 21672 RawClosure* Closure::New(const TypeArguments& instantiator_type_arguments, |
21691 const TypeArguments& function_type_arguments, | 21673 const TypeArguments& function_type_arguments, |
21692 const Function& function, | 21674 const Function& function, |
21693 const Context& context, | 21675 const Context& context, |
21694 Heap::Space space) { | 21676 Heap::Space space) { |
21695 Closure& result = Closure::Handle(); | 21677 Closure& result = Closure::Handle(); |
21696 { | 21678 { |
21697 RawObject* raw = | 21679 RawObject* raw = |
21698 Object::Allocate(Closure::kClassId, Closure::InstanceSize(), space); | 21680 Object::Allocate(Closure::kClassId, Closure::InstanceSize(), space); |
21699 NoSafepointScope no_safepoint; | 21681 NoSafepointScope no_safepoint; |
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22265 } | 22247 } |
22266 return UserTag::null(); | 22248 return UserTag::null(); |
22267 } | 22249 } |
22268 | 22250 |
22269 const char* UserTag::ToCString() const { | 22251 const char* UserTag::ToCString() const { |
22270 const String& tag_label = String::Handle(label()); | 22252 const String& tag_label = String::Handle(label()); |
22271 return tag_label.ToCString(); | 22253 return tag_label.ToCString(); |
22272 } | 22254 } |
22273 | 22255 |
22274 } // namespace dart | 22256 } // namespace dart |
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