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deps/v8/include/cppgc/internal/base-page-handle.h
43 строки
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Michaël Zasso
deps: update V8 to 13.6.233.8
02 май 2025, 16:06
Не верифицирован
02 май 2025, 16:06
918fe04
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// Copyright 2022 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. #ifndef INCLUDE_CPPGC_INTERNAL_BASE_PAGE_HANDLE_H_ #define INCLUDE_CPPGC_INTERNAL_BASE_PAGE_HANDLE_H_ #include "cppgc/heap-handle.h" #include "cppgc/internal/api-constants.h" #include "cppgc/internal/logging.h" #include "v8config.h" // NOLINT(build/include_directory) namespace cppgc { namespace internal { // The class is needed in the header to allow for fast access to HeapHandle in // the write barrier. class BasePageHandle { public: static V8_INLINE BasePageHandle* FromPayload(void* payload) { return reinterpret_cast<BasePageHandle*>( reinterpret_cast<uintptr_t>(payload) & ~(api_constants::kPageSize - 1)); } static V8_INLINE const BasePageHandle* FromPayload(const void* payload) { return FromPayload(const_cast<void*>(payload)); } HeapHandle& heap_handle() { return heap_handle_; } const HeapHandle& heap_handle() const { return heap_handle_; } protected: explicit BasePageHandle(HeapHandle& heap_handle) : heap_handle_(heap_handle) { CPPGC_DCHECK(reinterpret_cast<uintptr_t>(this) % api_constants::kPageSize == 0); } HeapHandle& heap_handle_; }; } // namespace internal } // namespace cppgc #endif // INCLUDE_CPPGC_INTERNAL_BASE_PAGE_HANDLE_H_