| // Copyright 2011 the V8 project authors. All rights reserved. |
| // Redistribution and use in source and binary forms, with or without |
| // modification, are permitted provided that the following conditions are |
| // met: |
| // |
| // * Redistributions of source code must retain the above copyright |
| // notice, this list of conditions and the following disclaimer. |
| // * Redistributions in binary form must reproduce the above |
| // copyright notice, this list of conditions and the following |
| // disclaimer in the documentation and/or other materials provided |
| // with the distribution. |
| // * Neither the name of Google Inc. nor the names of its |
| // contributors may be used to endorse or promote products derived |
| // from this software without specific prior written permission. |
| // |
| // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| |
| #ifndef V8_OBJECTS_VISITING_INL_H_ |
| #define V8_OBJECTS_VISITING_INL_H_ |
| |
| |
| namespace v8 { |
| namespace internal { |
| |
| template<typename StaticVisitor> |
| void StaticNewSpaceVisitor<StaticVisitor>::Initialize() { |
| table_.Register(kVisitShortcutCandidate, |
| &FixedBodyVisitor<StaticVisitor, |
| ConsString::BodyDescriptor, |
| int>::Visit); |
| |
| table_.Register(kVisitConsString, |
| &FixedBodyVisitor<StaticVisitor, |
| ConsString::BodyDescriptor, |
| int>::Visit); |
| |
| table_.Register(kVisitSlicedString, |
| &FixedBodyVisitor<StaticVisitor, |
| SlicedString::BodyDescriptor, |
| int>::Visit); |
| |
| table_.Register(kVisitFixedArray, |
| &FlexibleBodyVisitor<StaticVisitor, |
| FixedArray::BodyDescriptor, |
| int>::Visit); |
| |
| table_.Register(kVisitFixedDoubleArray, &VisitFixedDoubleArray); |
| |
| table_.Register(kVisitGlobalContext, |
| &FixedBodyVisitor<StaticVisitor, |
| Context::ScavengeBodyDescriptor, |
| int>::Visit); |
| |
| table_.Register(kVisitByteArray, &VisitByteArray); |
| |
| table_.Register(kVisitSharedFunctionInfo, |
| &FixedBodyVisitor<StaticVisitor, |
| SharedFunctionInfo::BodyDescriptor, |
| int>::Visit); |
| |
| table_.Register(kVisitSeqAsciiString, &VisitSeqAsciiString); |
| |
| table_.Register(kVisitSeqTwoByteString, &VisitSeqTwoByteString); |
| |
| table_.Register(kVisitJSFunction, |
| &JSObjectVisitor:: |
| template VisitSpecialized<JSFunction::kSize>); |
| |
| table_.Register(kVisitFreeSpace, &VisitFreeSpace); |
| |
| table_.Register(kVisitJSWeakMap, &JSObjectVisitor::Visit); |
| |
| table_.Register(kVisitJSRegExp, &JSObjectVisitor::Visit); |
| |
| table_.template RegisterSpecializations<DataObjectVisitor, |
| kVisitDataObject, |
| kVisitDataObjectGeneric>(); |
| |
| table_.template RegisterSpecializations<JSObjectVisitor, |
| kVisitJSObject, |
| kVisitJSObjectGeneric>(); |
| table_.template RegisterSpecializations<StructVisitor, |
| kVisitStruct, |
| kVisitStructGeneric>(); |
| } |
| |
| |
| void Code::CodeIterateBody(ObjectVisitor* v) { |
| int mode_mask = RelocInfo::kCodeTargetMask | |
| RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT) | |
| RelocInfo::ModeMask(RelocInfo::GLOBAL_PROPERTY_CELL) | |
| RelocInfo::ModeMask(RelocInfo::EXTERNAL_REFERENCE) | |
| RelocInfo::ModeMask(RelocInfo::JS_RETURN) | |
| RelocInfo::ModeMask(RelocInfo::DEBUG_BREAK_SLOT) | |
| RelocInfo::ModeMask(RelocInfo::RUNTIME_ENTRY); |
| |
| // There are two places where we iterate code bodies: here and the |
| // templated CodeIterateBody (below). They should be kept in sync. |
| IteratePointer(v, kRelocationInfoOffset); |
| IteratePointer(v, kHandlerTableOffset); |
| IteratePointer(v, kDeoptimizationDataOffset); |
| IteratePointer(v, kTypeFeedbackCellsOffset); |
| |
| RelocIterator it(this, mode_mask); |
| for (; !it.done(); it.next()) { |
| it.rinfo()->Visit(v); |
| } |
| } |
| |
| |
| template<typename StaticVisitor> |
| void Code::CodeIterateBody(Heap* heap) { |
| int mode_mask = RelocInfo::kCodeTargetMask | |
| RelocInfo::ModeMask(RelocInfo::EMBEDDED_OBJECT) | |
| RelocInfo::ModeMask(RelocInfo::GLOBAL_PROPERTY_CELL) | |
| RelocInfo::ModeMask(RelocInfo::EXTERNAL_REFERENCE) | |
| RelocInfo::ModeMask(RelocInfo::JS_RETURN) | |
| RelocInfo::ModeMask(RelocInfo::DEBUG_BREAK_SLOT) | |
| RelocInfo::ModeMask(RelocInfo::RUNTIME_ENTRY); |
| |
| // There are two places where we iterate code bodies: here and the |
| // non-templated CodeIterateBody (above). They should be kept in sync. |
| StaticVisitor::VisitPointer( |
| heap, |
| reinterpret_cast<Object**>(this->address() + kRelocationInfoOffset)); |
| StaticVisitor::VisitPointer( |
| heap, |
| reinterpret_cast<Object**>(this->address() + kHandlerTableOffset)); |
| StaticVisitor::VisitPointer( |
| heap, |
| reinterpret_cast<Object**>(this->address() + kDeoptimizationDataOffset)); |
| StaticVisitor::VisitPointer( |
| heap, |
| reinterpret_cast<Object**>(this->address() + kTypeFeedbackCellsOffset)); |
| |
| RelocIterator it(this, mode_mask); |
| for (; !it.done(); it.next()) { |
| it.rinfo()->template Visit<StaticVisitor>(heap); |
| } |
| } |
| |
| |
| } } // namespace v8::internal |
| |
| #endif // V8_OBJECTS_VISITING_INL_H_ |