// Copyright 2019 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.

extern class EnumCache extends Struct {

keys: FixedArray;

indices: FixedArray;

}

@export

struct DescriptorEntry {

key: Name|Undefined;

details: Smi|Undefined;

value: JSAny|Weak<Map>|AccessorInfo|AccessorPair|ClassPositions|

NumberDictionary;

}

type FastIterableState extends uint8

constexpr 'DescriptorArray::FastIterableState';

bitfield struct DescriptorArrayFlags extends uint32 {

fast_iterable: FastIterableState: 2 bit;

}

@generateBodyDescriptor

@generateUniqueMap

extern class DescriptorArray extends HeapObject {

const number_of_all_descriptors: uint16;

number_of_descriptors: uint16;

// Raw GC state that is maintained during marking.

// See `DescriptorArrayMarkingState`.

raw_gc_state: uint32;

flags: DescriptorArrayFlags;

@if(TAGGED_SIZE_8_BYTES) optional_padding: uint32;

@ifnot(TAGGED_SIZE_8_BYTES) optional_padding: void;

enum_cache: EnumCache;

descriptors[number_of_all_descriptors]: DescriptorEntry;

}

// A descriptor array where all values are held strongly.

class StrongDescriptorArray extends DescriptorArray {}