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// Copyright 2014 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 "src/base/compiler-specific.h"
#include "src/compiler/simplified-operator.h"
#include "src/compiler/write-barrier-kind.h"
#include "src/objects/elements-kind.h"
#include "src/objects/js-objects.h"
namespace v8 {
namespace internal {
namespace compiler {
// This access builder provides a set of static methods constructing commonly
// used FieldAccess and ElementAccess descriptors. These descriptors serve as
// parameters to simplified load/store operators.
class V8_EXPORT_PRIVATE AccessBuilder final
: public NON_EXPORTED_BASE(AllStatic) {
// ===========================================================================
// Access to external values (based on external references).
// Provides access to an IntPtr field identified by an external reference.
static FieldAccess ForExternalIntPtr();
// ===========================================================================
// Access to heap object fields and elements (based on tagged pointer).
// Provides access to HeapObject::map() field.
static FieldAccess ForMap();
// Provides access to HeapNumber::value() field.
static FieldAccess ForHeapNumberValue();
// Provides access to BigInt's bit field.
static FieldAccess ForBigIntBitfield();
// Provides access to BigInt's 32 bit padding that is placed after the
// bitfield on 64 bit architectures without pointer compression. Do not use
// this on 32 bit architectures.
static FieldAccess ForBigIntOptionalPadding();
// Provides access to BigInt's least significant digit on 64 bit
// architectures. Do not use this on 32 bit architectures.
static FieldAccess ForBigIntLeastSignificantDigit64();
// Provides access to JSObject::properties() field.
static FieldAccess ForJSObjectPropertiesOrHash();
// Provides access to JSObject::properties() field for known pointers.
static FieldAccess ForJSObjectPropertiesOrHashKnownPointer();
// Provides access to JSObject::elements() field.
static FieldAccess ForJSObjectElements();
// Provides access to JSObject inobject property fields.
static FieldAccess ForJSObjectInObjectProperty(const MapRef& map, int index);
static FieldAccess ForJSObjectOffset(
int offset, WriteBarrierKind write_barrier_kind = kFullWriteBarrier);
// Provides access to JSCollecton::table() field.
static FieldAccess ForJSCollectionTable();
// Provides access to JSCollectionIterator::table() field.
static FieldAccess ForJSCollectionIteratorTable();
// Provides access to JSCollectionIterator::index() field.
static FieldAccess ForJSCollectionIteratorIndex();
// Provides access to JSFunction::prototype_or_initial_map() field.
static FieldAccess ForJSFunctionPrototypeOrInitialMap();
// Provides access to JSFunction::context() field.
static FieldAccess ForJSFunctionContext();
// Provides access to JSFunction::shared() field.
static FieldAccess ForJSFunctionSharedFunctionInfo();
// Provides access to JSFunction::feedback_cell() field.
static FieldAccess ForJSFunctionFeedbackCell();
// Provides access to JSFunction::code() field.
static FieldAccess ForJSFunctionCode();
// Provides access to JSBoundFunction::bound_target_function() field.
static FieldAccess ForJSBoundFunctionBoundTargetFunction();
// Provides access to JSBoundFunction::bound_this() field.
static FieldAccess ForJSBoundFunctionBoundThis();
// Provides access to JSBoundFunction::bound_arguments() field.
static FieldAccess ForJSBoundFunctionBoundArguments();
// Provides access to JSGeneratorObject::context() field.
static FieldAccess ForJSGeneratorObjectContext();
// Provides access to JSGeneratorObject::continuation() field.
static FieldAccess ForJSGeneratorObjectContinuation();
// Provides access to JSGeneratorObject::input_or_debug_pos() field.
static FieldAccess ForJSGeneratorObjectInputOrDebugPos();
// Provides access to JSGeneratorObject::parameters_and_registers() field.
static FieldAccess ForJSGeneratorObjectParametersAndRegisters();
// Provides access to JSGeneratorObject::function() field.
static FieldAccess ForJSGeneratorObjectFunction();
// Provides access to JSGeneratorObject::receiver() field.
static FieldAccess ForJSGeneratorObjectReceiver();
// Provides access to JSGeneratorObject::resume_mode() field.
static FieldAccess ForJSGeneratorObjectResumeMode();
// Provides access to JSAsyncFunctionObject::promise() field.
static FieldAccess ForJSAsyncFunctionObjectPromise();
// Provides access to JSAsyncGeneratorObject::queue() field.
static FieldAccess ForJSAsyncGeneratorObjectQueue();
// Provides access to JSAsyncGeneratorObject::is_awaiting() field.
static FieldAccess ForJSAsyncGeneratorObjectIsAwaiting();
// Provides access to JSArray::length() field.
static FieldAccess ForJSArrayLength(ElementsKind elements_kind);
// Provides access to JSArrayBuffer::bit_field() field.
static FieldAccess ForJSArrayBufferBitField();
// Provides access to JSArrayBufferView::buffer() field.
static FieldAccess ForJSArrayBufferViewBuffer();
// Provides access to JSArrayBufferView::byteLength() field.
static FieldAccess ForJSArrayBufferViewByteLength();
// Provides access to JSArrayBufferView::byteOffset() field.
static FieldAccess ForJSArrayBufferViewByteOffset();
// Provides access to JSTypedArray::length() field.
static FieldAccess ForJSTypedArrayLength();
// Provides access to JSTypedArray::base_pointer() field.
static FieldAccess ForJSTypedArrayBasePointer();
// Provides access to JSTypedArray::external_pointer() field.
static FieldAccess ForJSTypedArrayExternalPointer();
// Provides access to JSDataView::data_pointer() field.
static FieldAccess ForJSDataViewDataPointer();
// Provides access to JSDate::value() field.
static FieldAccess ForJSDateValue();
// Provides access to JSDate fields.
static FieldAccess ForJSDateField(JSDate::FieldIndex index);
// Provides access to JSIteratorResult::done() field.
static FieldAccess ForJSIteratorResultDone();
// Provides access to JSIteratorResult::value() field.
static FieldAccess ForJSIteratorResultValue();
// Provides access to JSRegExp::data() field.
static FieldAccess ForJSRegExpData();
// Provides access to JSRegExp::flags() field.
static FieldAccess ForJSRegExpFlags();
// Provides access to JSRegExp::last_index() field.
static FieldAccess ForJSRegExpLastIndex();
// Provides access to JSRegExp::source() field.
static FieldAccess ForJSRegExpSource();
// Provides access to FixedArray::length() field.
static FieldAccess ForFixedArrayLength();
// Provides access to WeakFixedArray::length() field.
static FieldAccess ForWeakFixedArrayLength();
// Provides access to SloppyArgumentsElements::context() field.
static FieldAccess ForSloppyArgumentsElementsContext();
// Provides access to SloppyArgumentsElements::arguments() field.
static FieldAccess ForSloppyArgumentsElementsArguments();
// Provides access to PropertyArray::length() field.
static FieldAccess ForPropertyArrayLengthAndHash();
// Provides access to DescriptorArray::enum_cache() field.
static FieldAccess ForDescriptorArrayEnumCache();
// Provides access to Map::bit_field() byte.
static FieldAccess ForMapBitField();
// Provides access to Map::bit_field2() byte.
static FieldAccess ForMapBitField2();
// Provides access to Map::bit_field3() field.
static FieldAccess ForMapBitField3();
// Provides access to Map::descriptors() field.
static FieldAccess ForMapDescriptors();
// Provides access to Map::instance_type() field.
static FieldAccess ForMapInstanceType();
// Provides access to Map::prototype() field.
static FieldAccess ForMapPrototype();
// Provides access to Map::native_context() field.
static FieldAccess ForMapNativeContext();
// Provides access to Module::regular_exports() field.
static FieldAccess ForModuleRegularExports();
// Provides access to Module::regular_imports() field.
static FieldAccess ForModuleRegularImports();
// Provides access to Name::hash_field() field.
static FieldAccess ForNameHashField();
// Provides access to String::length() field.
static FieldAccess ForStringLength();
// Provides access to ConsString::first() field.
static FieldAccess ForConsStringFirst();
// Provides access to ConsString::second() field.
static FieldAccess ForConsStringSecond();
// Provides access to ThinString::actual() field.
static FieldAccess ForThinStringActual();
// Provides access to SlicedString::offset() field.
static FieldAccess ForSlicedStringOffset();
// Provides access to SlicedString::parent() field.
static FieldAccess ForSlicedStringParent();
// Provides access to ExternalString::resource_data() field.
static FieldAccess ForExternalStringResourceData();
// Provides access to SeqOneByteString characters.
static ElementAccess ForSeqOneByteStringCharacter();
// Provides access to SeqTwoByteString characters.
static ElementAccess ForSeqTwoByteStringCharacter();
// Provides access to JSGlobalProxy::native_context() field.
static FieldAccess ForJSGlobalProxyNativeContext();
// Provides access to JSArrayIterator::iterated_object() field.
static FieldAccess ForJSArrayIteratorIteratedObject();
// Provides access to JSArrayIterator::next_index() field.
static FieldAccess ForJSArrayIteratorNextIndex();
// Provides access to JSArrayIterator::kind() field.
static FieldAccess ForJSArrayIteratorKind();
// Provides access to JSStringIterator::string() field.
static FieldAccess ForJSStringIteratorString();
// Provides access to JSStringIterator::index() field.
static FieldAccess ForJSStringIteratorIndex();
// Provides access to Cell::value() field.
static FieldAccess ForCellValue();
// Provides access to arguments object fields.
static FieldAccess ForArgumentsLength();
static FieldAccess ForArgumentsCallee();
// Provides access to FixedArray slots.
static FieldAccess ForFixedArraySlot(
size_t index, WriteBarrierKind write_barrier_kind = kFullWriteBarrier);
static FieldAccess ForFeedbackVectorSlot(int index);
// Provides access to ScopeInfo flags.
static FieldAccess ForScopeInfoFlags();
// Provides access to Context slots.
static FieldAccess ForContextSlot(size_t index);
// Provides access to Context slots that are known to be pointers.
static FieldAccess ForContextSlotKnownPointer(size_t index);
// Provides access to WeakFixedArray elements.
static ElementAccess ForWeakFixedArrayElement();
static FieldAccess ForWeakFixedArraySlot(int index);
// Provides access to FixedArray elements.
static ElementAccess ForFixedArrayElement();
static ElementAccess ForFixedArrayElement(
ElementsKind kind,
LoadSensitivity load_sensitivity = LoadSensitivity::kUnsafe);
// Provides access to SloppyArgumentsElements elements.
static ElementAccess ForSloppyArgumentsElementsMappedEntry();
// Provides access to stack arguments
static ElementAccess ForStackArgument();
// Provides access to FixedDoubleArray elements.
static ElementAccess ForFixedDoubleArrayElement();
// Provides access to EnumCache::keys() field.
static FieldAccess ForEnumCacheKeys();
// Provides access to EnumCache::indices() field.
static FieldAccess ForEnumCacheIndices();
// Provides access to Fixed{type}TypedArray and External{type}Array elements.
static ElementAccess ForTypedArrayElement(
ExternalArrayType type, bool is_external,
LoadSensitivity load_sensitivity = LoadSensitivity::kUnsafe);
// Provides access to HashTable fields.
static FieldAccess ForHashTableBaseNumberOfElements();
static FieldAccess ForHashTableBaseNumberOfDeletedElement();
static FieldAccess ForHashTableBaseCapacity();
// Provides access to OrderedHashMapOrSet fields.
static FieldAccess ForOrderedHashMapOrSetNextTable();
static FieldAccess ForOrderedHashMapOrSetNumberOfBuckets();
static FieldAccess ForOrderedHashMapOrSetNumberOfElements();
static FieldAccess ForOrderedHashMapOrSetNumberOfDeletedElements();
// Provides access to OrderedHashMap elements.
static ElementAccess ForOrderedHashMapEntryValue();
// Provides access to Dictionary fields.
static FieldAccess ForDictionaryNextEnumerationIndex();
static FieldAccess ForDictionaryObjectHashIndex();
// Provides access to FeedbackCell fields.
static FieldAccess ForFeedbackCellValue();
static FieldAccess ForFeedbackCellInterruptBudget();
// Provides access to a FeedbackVector fields.
static FieldAccess ForFeedbackVectorInvocationCount();
static FieldAccess ForFeedbackVectorFlags();
static FieldAccess ForFeedbackVectorClosureFeedbackCellArray();
} // namespace compiler
} // namespace internal
} // namespace v8