v8/include/cppgc/internal/api-constants.h
Anton Bikineev 1277b5fa78 cppgc: Move implementation headers in internal/ dir
Headers containing only implementation details are better to stay in a
separate dir to indicate the user that they shouldn't be included.

Bug: chromium:1056170
Change-Id: I10f84ddf709b146396aadc820ec33bc6a49b2dac
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2139585
Reviewed-by: Omer Katz <omerkatz@chromium.org>
Reviewed-by: Michael Lippautz <mlippautz@chromium.org>
Commit-Queue: Anton Bikineev <bikineev@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67050}
2020-04-08 07:39:40 +00:00

36 lines
1.0 KiB
C++

// 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.
#ifndef INCLUDE_CPPGC_INTERNAL_API_CONSTANTS_H_
#define INCLUDE_CPPGC_INTERNAL_API_CONSTANTS_H_
#include <stddef.h>
#include <stdint.h>
#include "include/v8config.h"
namespace cppgc {
namespace internal {
// Embedders should not rely on this code!
// Internal constants to avoid exposing internal types on the API surface.
namespace api_constants {
// Offset of the uint16_t bitfield from the payload contaning the
// in-construction bit. This is subtracted from the payload pointer to get
// to the right bitfield.
static constexpr size_t kFullyConstructedBitFieldOffsetFromPayload =
2 * sizeof(uint16_t);
// Mask for in-construction bit.
static constexpr size_t kFullyConstructedBitMask = size_t{1};
static constexpr size_t kLargeObjectSizeThreshold = 65536;
} // namespace api_constants
} // namespace internal
} // namespace cppgc
#endif // INCLUDE_CPPGC_INTERNAL_API_CONSTANTS_H_