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// Copyright 2015 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 V8_OBJECTS_H_
#define V8_OBJECTS_H_
#include <iosfwd>
#include <memory>
#include "src/assert-scope.h"
#include "src/bailout-reason.h"
#include "src/base/bits.h"
#include "src/base/flags.h"
#include "src/builtins/builtins.h"
#include "src/checks.h"
#include "src/elements-kind.h"
#include "src/field-index.h"
#include "src/flags.h"
#include "src/list.h"
#include "src/messages.h"
#include "src/property-details.h"
#include "src/unicode-decoder.h"
#include "src/unicode.h"
#include "src/zone/zone.h"
#if V8_TARGET_ARCH_ARM
#include "src/arm/constants-arm.h" // NOLINT
#elif V8_TARGET_ARCH_ARM64
#include "src/arm64/constants-arm64.h" // NOLINT
#elif V8_TARGET_ARCH_MIPS
#include "src/mips/constants-mips.h" // NOLINT
#elif V8_TARGET_ARCH_MIPS64
#include "src/mips64/constants-mips64.h" // NOLINT
#elif V8_TARGET_ARCH_PPC
#include "src/ppc/constants-ppc.h" // NOLINT
#elif V8_TARGET_ARCH_S390
#include "src/s390/constants-s390.h" // NOLINT
#endif
//
// Most object types in the V8 JavaScript are described in this file.
//
// Inheritance hierarchy:
// - Object
// - Smi (immediate small integer)
// - HeapObject (superclass for everything allocated in the heap)
// - JSReceiver (suitable for property access)
// - JSObject
// - JSArray
// - JSArrayBuffer
// - JSArrayBufferView
// - JSTypedArray
// - JSDataView
// - JSBoundFunction
// - JSCollection
// - JSSet
// - JSMap
// - JSStringIterator
// - JSSetIterator
// - JSMapIterator
// - JSWeakCollection
// - JSWeakMap
// - JSWeakSet
// - JSRegExp
// - JSFunction
// - JSGeneratorObject
// - JSGlobalObject
// - JSGlobalProxy
// - JSValue
// - JSDate
// - JSMessageObject
// - JSModuleNamespace
// - JSFixedArrayIterator
// - JSProxy
// - FixedArrayBase
// - ByteArray
// - BytecodeArray
// - FixedArray
// - DescriptorArray
// - FrameArray
// - LiteralsArray
// - HashTable
// - Dictionary
// - StringTable
// - StringSet
// - CompilationCacheTable
// - CodeCacheHashTable
// - MapCache
// - OrderedHashTable
// - OrderedHashSet
// - OrderedHashMap
// - Context
// - TypeFeedbackMetadata
// - TypeFeedbackVector
// - TemplateList
// - TransitionArray
// - ScopeInfo
// - ModuleInfo
// - ScriptContextTable
// - WeakFixedArray
// - FixedDoubleArray
// - Name
// - String
// - SeqString
// - SeqOneByteString
// - SeqTwoByteString
// - SlicedString
// - ConsString
// - ExternalString
// - ExternalOneByteString
// - ExternalTwoByteString
// - InternalizedString
// - SeqInternalizedString
// - SeqOneByteInternalizedString
// - SeqTwoByteInternalizedString
// - ConsInternalizedString
// - ExternalInternalizedString
// - ExternalOneByteInternalizedString
// - ExternalTwoByteInternalizedString
// - Symbol
// - HeapNumber
// - Simd128Value
// - Float32x4
// - Int32x4
// - Uint32x4
// - Bool32x4
// - Int16x8
// - Uint16x8
// - Bool16x8
// - Int8x16
// - Uint8x16
// - Bool8x16
// - Cell
// - PropertyCell
// - Code
// - AbstractCode, a wrapper around Code or BytecodeArray
// - Map
// - Oddball
// - Foreign
// - SharedFunctionInfo
// - Struct
// - Box
// - AccessorInfo
// - PromiseResolveThenableJobInfo
// - PromiseReactionJobInfo
// - AccessorPair
// - AccessCheckInfo
// - InterceptorInfo
// - CallHandlerInfo
// - TemplateInfo
// - FunctionTemplateInfo
// - ObjectTemplateInfo
// - Script
// - DebugInfo
// - BreakPointInfo
// - CodeCache
// - PrototypeInfo
// - Module
// - ModuleInfoEntry
// - WeakCell
//
// Formats of Object*:
// Smi: [31 bit signed int] 0
// HeapObject: [32 bit direct pointer] (4 byte aligned) | 01
namespace v8 {
namespace internal {
struct InliningPosition;
enum KeyedAccessStoreMode {
STANDARD_STORE,
STORE_TRANSITION_TO_OBJECT,
STORE_TRANSITION_TO_DOUBLE,
STORE_AND_GROW_NO_TRANSITION,
STORE_AND_GROW_TRANSITION_TO_OBJECT,
STORE_AND_GROW_TRANSITION_TO_DOUBLE,
STORE_NO_TRANSITION_IGNORE_OUT_OF_BOUNDS,
STORE_NO_TRANSITION_HANDLE_COW
};
enum MutableMode {
MUTABLE,
IMMUTABLE
};
enum ExternalArrayType {
kExternalInt8Array = 1,
kExternalUint8Array,
kExternalInt16Array,
kExternalUint16Array,
kExternalInt32Array,
kExternalUint32Array,
kExternalFloat32Array,
kExternalFloat64Array,
kExternalUint8ClampedArray,
};