| // Copyright 2020 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "include/cppgc/trace-trait.h" |
| |
| #include "src/heap/cppgc/gc-info-table.h" |
| #include "src/heap/cppgc/heap-page.h" |
| |
| namespace cppgc { |
| namespace internal { |
| |
| TraceDescriptor TraceTraitFromInnerAddressImpl::GetTraceDescriptor( |
| const void* address) { |
| // address is guaranteed to be on a normal page because this is used only for |
| // mixins. |
| const HeapObjectHeader& header = |
| BasePage::FromPayload(address) |
| ->ObjectHeaderFromInnerAddress<AccessMode::kAtomic>(address); |
| return {header.Payload(), GlobalGCInfoTable::GCInfoFromIndex( |
| header.GetGCInfoIndex<AccessMode::kAtomic>()) |
| .trace}; |
| } |
| |
| } // namespace internal |
| } // namespace cppgc |
