1// Copyright 2019 the V8 project authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5// This class does not use the generated verifier, so if you change anything 6// here, please also update DataHandlerVerify in objects-debug.cc. 7@abstract 8extern class DataHandler extends Struct { 9 // [smi_handler]: A Smi which encodes a handler or Code object (we still 10 // use code handlers for accessing lexical environment variables, but soon 11 // only smi handlers will remain). See LoadHandler and StoreHandler for 12 // details about encoding. 13 @if(V8_EXTERNAL_CODE_SPACE) smi_handler: Smi|CodeDataContainer; 14 @ifnot(V8_EXTERNAL_CODE_SPACE) smi_handler: Smi|Code; 15 16 // [validity_cell]: A validity Cell that guards prototype chain modifications. 17 validity_cell: Smi|Cell; 18 19 // Space for the following fields may or may not be allocated. 20 data1: MaybeObject; 21 data2: MaybeObject; 22 data3: MaybeObject; 23} 24