// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_COMPILER_ACCESS_BUILDER_H_
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#define V8_COMPILER_ACCESS_BUILDER_H_
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#include "src/base/compiler-specific.h"
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#include "src/compiler/simplified-operator.h"
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#include "src/elements-kind.h"
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#include "src/globals.h"
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namespace v8 {
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namespace internal {
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namespace compiler {
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// This access builder provides a set of static methods constructing commonly
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// used FieldAccess and ElementAccess descriptors. These descriptors serve as
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// parameters to simplified load/store operators.
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class V8_EXPORT_PRIVATE AccessBuilder final
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: public NON_EXPORTED_BASE(AllStatic) {
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public:
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// ===========================================================================
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// Access to external values (based on external references).
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// Provides access to a tagged field identified by an external reference.
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static FieldAccess ForExternalTaggedValue();
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// Provides access to an uint8 field identified by an external reference.
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static FieldAccess ForExternalUint8Value();
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// ===========================================================================
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// Access to heap object fields and elements (based on tagged pointer).
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// Provides access to HeapObject::map() field.
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static FieldAccess ForMap();
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// Provides access to HeapNumber::value() field.
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static FieldAccess ForHeapNumberValue();
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// Provides access to BigInt's bit field.
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static FieldAccess ForBigIntBitfield();
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// Provides access to JSObject::properties() field.
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static FieldAccess ForJSObjectPropertiesOrHash();
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// Provides access to JSObject::elements() field.
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static FieldAccess ForJSObjectElements();
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// Provides access to JSObject inobject property fields.
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static FieldAccess ForJSObjectInObjectProperty(const MapRef& map, int index);
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static FieldAccess ForJSObjectOffset(
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int offset, WriteBarrierKind write_barrier_kind = kFullWriteBarrier);
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// Provides access to JSCollecton::table() field.
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static FieldAccess ForJSCollectionTable();
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// Provides access to JSCollectionIterator::table() field.
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static FieldAccess ForJSCollectionIteratorTable();
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// Provides access to JSCollectionIterator::index() field.
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static FieldAccess ForJSCollectionIteratorIndex();
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// Provides access to JSFunction::prototype_or_initial_map() field.
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static FieldAccess ForJSFunctionPrototypeOrInitialMap();
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// Provides access to JSFunction::context() field.
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static FieldAccess ForJSFunctionContext();
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// Provides access to JSFunction::shared() field.
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static FieldAccess ForJSFunctionSharedFunctionInfo();
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// Provides access to JSFunction::feedback_cell() field.
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static FieldAccess ForJSFunctionFeedbackCell();
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// Provides access to JSFunction::code() field.
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static FieldAccess ForJSFunctionCode();
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// Provides access to JSBoundFunction::bound_target_function() field.
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static FieldAccess ForJSBoundFunctionBoundTargetFunction();
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// Provides access to JSBoundFunction::bound_this() field.
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static FieldAccess ForJSBoundFunctionBoundThis();
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// Provides access to JSBoundFunction::bound_arguments() field.
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static FieldAccess ForJSBoundFunctionBoundArguments();
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// Provides access to JSGeneratorObject::context() field.
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static FieldAccess ForJSGeneratorObjectContext();
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// Provides access to JSGeneratorObject::continuation() field.
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static FieldAccess ForJSGeneratorObjectContinuation();
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// Provides access to JSGeneratorObject::input_or_debug_pos() field.
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static FieldAccess ForJSGeneratorObjectInputOrDebugPos();
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// Provides access to JSGeneratorObject::parameters_and_registers() field.
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static FieldAccess ForJSGeneratorObjectParametersAndRegisters();
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// Provides access to JSGeneratorObject::function() field.
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static FieldAccess ForJSGeneratorObjectFunction();
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// Provides access to JSGeneratorObject::receiver() field.
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static FieldAccess ForJSGeneratorObjectReceiver();
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// Provides access to JSGeneratorObject::resume_mode() field.
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static FieldAccess ForJSGeneratorObjectResumeMode();
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// Provides access to JSAsyncGeneratorObject::queue() field.
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static FieldAccess ForJSAsyncGeneratorObjectQueue();
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// Provides access to JSAsyncGeneratorObject::is_awaiting() field.
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static FieldAccess ForJSAsyncGeneratorObjectIsAwaiting();
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// Provides access to JSArray::length() field.
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static FieldAccess ForJSArrayLength(ElementsKind elements_kind);
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// Provides access to JSArrayBuffer::backing_store() field.
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static FieldAccess ForJSArrayBufferBackingStore();
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// Provides access to JSArrayBuffer::bit_field() field.
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static FieldAccess ForJSArrayBufferBitField();
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// Provides access to JSArrayBufferView::buffer() field.
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static FieldAccess ForJSArrayBufferViewBuffer();
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// Provides access to JSArrayBufferView::byteLength() field.
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static FieldAccess ForJSArrayBufferViewByteLength();
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// Provides access to JSArrayBufferView::byteOffset() field.
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static FieldAccess ForJSArrayBufferViewByteOffset();
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// Provides access to JSTypedArray::length() field.
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static FieldAccess ForJSTypedArrayLength();
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// Provides access to JSDate::value() field.
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static FieldAccess ForJSDateValue();
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// Provides access to JSDate fields.
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static FieldAccess ForJSDateField(JSDate::FieldIndex index);
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// Provides access to JSIteratorResult::done() field.
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static FieldAccess ForJSIteratorResultDone();
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// Provides access to JSIteratorResult::value() field.
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static FieldAccess ForJSIteratorResultValue();
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// Provides access to JSRegExp::data() field.
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static FieldAccess ForJSRegExpData();
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// Provides access to JSRegExp::flags() field.
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static FieldAccess ForJSRegExpFlags();
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// Provides access to JSRegExp::last_index() field.
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static FieldAccess ForJSRegExpLastIndex();
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// Provides access to JSRegExp::source() field.
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static FieldAccess ForJSRegExpSource();
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// Provides access to FixedArray::length() field.
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static FieldAccess ForFixedArrayLength();
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// Provides access to PropertyArray::length() field.
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static FieldAccess ForPropertyArrayLengthAndHash();
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// Provides access to FixedTypedArrayBase::base_pointer() field.
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static FieldAccess ForFixedTypedArrayBaseBasePointer();
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// Provides access to FixedTypedArrayBase::external_pointer() field.
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static FieldAccess ForFixedTypedArrayBaseExternalPointer();
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// Provides access to DescriptorArray::enum_cache() field.
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static FieldAccess ForDescriptorArrayEnumCache();
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// Provides access to Map::bit_field() byte.
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static FieldAccess ForMapBitField();
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// Provides access to Map::bit_field2() byte.
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static FieldAccess ForMapBitField2();
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// Provides access to Map::bit_field3() field.
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static FieldAccess ForMapBitField3();
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// Provides access to Map::descriptors() field.
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static FieldAccess ForMapDescriptors();
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// Provides access to Map::instance_type() field.
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static FieldAccess ForMapInstanceType();
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// Provides access to Map::prototype() field.
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static FieldAccess ForMapPrototype();
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// Provides access to Module::regular_exports() field.
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static FieldAccess ForModuleRegularExports();
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// Provides access to Module::regular_imports() field.
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static FieldAccess ForModuleRegularImports();
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// Provides access to Name::hash_field() field.
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static FieldAccess ForNameHashField();
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// Provides access to String::length() field.
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static FieldAccess ForStringLength();
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// Provides access to ConsString::first() field.
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static FieldAccess ForConsStringFirst();
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// Provides access to ConsString::second() field.
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static FieldAccess ForConsStringSecond();
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// Provides access to ThinString::actual() field.
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static FieldAccess ForThinStringActual();
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// Provides access to SlicedString::offset() field.
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static FieldAccess ForSlicedStringOffset();
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// Provides access to SlicedString::parent() field.
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static FieldAccess ForSlicedStringParent();
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// Provides access to ExternalString::resource_data() field.
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static FieldAccess ForExternalStringResourceData();
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// Provides access to ExternalOneByteString characters.
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static ElementAccess ForExternalOneByteStringCharacter();
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// Provides access to ExternalTwoByteString characters.
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static ElementAccess ForExternalTwoByteStringCharacter();
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// Provides access to SeqOneByteString characters.
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static ElementAccess ForSeqOneByteStringCharacter();
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// Provides access to SeqTwoByteString characters.
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static ElementAccess ForSeqTwoByteStringCharacter();
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// Provides access to JSGlobalObject::global_proxy() field.
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static FieldAccess ForJSGlobalObjectGlobalProxy();
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// Provides access to JSGlobalObject::native_context() field.
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static FieldAccess ForJSGlobalObjectNativeContext();
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// Provides access to JSGlobalProxy::native_context() field.
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static FieldAccess ForJSGlobalProxyNativeContext();
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// Provides access to JSArrayIterator::iterated_object() field.
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static FieldAccess ForJSArrayIteratorIteratedObject();
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// Provides access to JSArrayIterator::next_index() field.
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static FieldAccess ForJSArrayIteratorNextIndex();
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// Provides access to JSArrayIterator::kind() field.
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static FieldAccess ForJSArrayIteratorKind();
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// Provides access to JSStringIterator::string() field.
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static FieldAccess ForJSStringIteratorString();
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// Provides access to JSStringIterator::index() field.
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static FieldAccess ForJSStringIteratorIndex();
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// Provides access to JSValue::value() field.
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static FieldAccess ForValue();
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// Provides access to Cell::value() field.
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static FieldAccess ForCellValue();
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// Provides access to arguments object fields.
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static FieldAccess ForArgumentsLength();
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static FieldAccess ForArgumentsCallee();
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// Provides access to FixedArray slots.
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static FieldAccess ForFixedArraySlot(
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size_t index, WriteBarrierKind write_barrier_kind = kFullWriteBarrier);
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// Provides access to Context slots.
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static FieldAccess ForContextSlot(size_t index);
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// Provides access to FixedArray elements.
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static ElementAccess ForFixedArrayElement();
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static ElementAccess ForFixedArrayElement(
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ElementsKind kind,
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LoadSensitivity load_sensitivity = LoadSensitivity::kUnsafe);
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// Provides access to FixedDoubleArray elements.
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static ElementAccess ForFixedDoubleArrayElement();
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// Provides access to EnumCache::keys() field.
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static FieldAccess ForEnumCacheKeys();
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// Provides access to EnumCache::indices() field.
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static FieldAccess ForEnumCacheIndices();
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// Provides access to Fixed{type}TypedArray and External{type}Array elements.
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static ElementAccess ForTypedArrayElement(
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ExternalArrayType type, bool is_external,
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LoadSensitivity load_sensitivity = LoadSensitivity::kUnsafe);
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// Provides access to HashTable fields.
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static FieldAccess ForHashTableBaseNumberOfElements();
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static FieldAccess ForHashTableBaseNumberOfDeletedElement();
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static FieldAccess ForHashTableBaseCapacity();
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// Provides access to OrderedHashTableBase fields.
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static FieldAccess ForOrderedHashTableBaseNextTable();
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static FieldAccess ForOrderedHashTableBaseNumberOfBuckets();
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static FieldAccess ForOrderedHashTableBaseNumberOfElements();
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static FieldAccess ForOrderedHashTableBaseNumberOfDeletedElements();
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// Provides access to OrderedHashMap elements.
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static ElementAccess ForOrderedHashMapEntryValue();
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// Provides access to Dictionary fields.
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static FieldAccess ForDictionaryMaxNumberKey();
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static FieldAccess ForDictionaryNextEnumerationIndex();
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static FieldAccess ForDictionaryObjectHashIndex();
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private:
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DISALLOW_IMPLICIT_CONSTRUCTORS(AccessBuilder);
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};
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} // namespace compiler
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} // namespace internal
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} // namespace v8
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#endif // V8_COMPILER_ACCESS_BUILDER_H_
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