src/objects/js-interceptor-map.tq

// Copyright 2026 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.

// Extended map for interceptor objects, it caches named and indexed
// InterceptorInfo objects in the Map for faster access.
@cppObjectLayoutDefinition
@hasSameInstanceTypeAsParent
@doNotGenerateCast
extern class JSInterceptorMap extends ExtendedMap {
  flags: uint8;
  @ifnot(TAGGED_SIZE_8_BYTES) extended_padding[2]: uint8;
  @if(TAGGED_SIZE_8_BYTES) extended_padding[6]: uint8;
  named_interceptor: InterceptorInfo;
  indexed_interceptor: InterceptorInfo;
  // This prototype validity cell guards modifications of the interceptor's
  // prototype object that allow fast iterable-to-list optimization. It is
  // different from Map::prototype_validity_cell which is used for guarding
  // usages of Maps as a fast property transition handlers - it makes sure
  // that the prototype chain does not have the property added by the map.
  fast_case_validity_cell: Cell;
}