deps/v8/src/objects/api-callbacks.tq - main - githubmirror/node

deps/v8/src/objects/api-callbacks.tq
65 строк2 KB
Chengzhong Wu
deps: V8: backport a05321ebd98e
07 июл 2026, 20:59
07 июл 2026, 20:5939d9e8c
// Copyright 2019 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.

bitfield struct InterceptorInfoFlags extends uint31 {
  can_intercept_symbols: bool: 1 bit;
  non_masking: bool: 1 bit;
  named: bool: 1 bit;
  has_no_side_effect: bool: 1 bit;
  has_new_callbacks_signature: bool: 1 bit;
  has_dont_delete_property: bool: 1 bit;
}

extern class InterceptorInfo extends HeapObject {
  data: Object;
  flags: InterceptorInfoFlags;
  @if(TAGGED_SIZE_8_BYTES) optional_padding: uint32;
  @ifnot(TAGGED_SIZE_8_BYTES) optional_padding: void;
  getter: ExternalPointer;
  setter: ExternalPointer;
  query: ExternalPointer;
  descriptor: ExternalPointer;
  deleter: ExternalPointer;
  enumerator: ExternalPointer;
  definer: ExternalPointer;
}

@cppObjectLayoutDefinition
extern class AccessCheckInfo extends Struct {
  callback: Foreign|Zero|Undefined;
  named_interceptor: InterceptorInfo|Zero|Undefined;
  indexed_interceptor: InterceptorInfo|Zero|Undefined;
  data: Object;
}

type SideEffectType extends int32 constexpr 'SideEffectType';

bitfield struct AccessorInfoFlags extends uint32 {
  is_sloppy: bool: 1 bit;
  replace_on_access: bool: 1 bit;
  getter_side_effect_type: SideEffectType: 2 bit;
  setter_side_effect_type: SideEffectType: 2 bit;
  initial_attributes: PropertyAttributes: 3 bit;
}

extern class AccessorInfo extends HeapObject {
  data: Object;
  // This name is used for the two purposes:
  // 1) for native accessor properties added to an object template via Api this
  //    field stores property name until the object template is instantiated,
  // 2) CPU profiler machinery uses this name for mapping getter/setter
  //    C++ function pointers back to property name. Note that this mapping
  //    might be incorrect in case a getter/setter C++ callbacks are used for
  //    multiple different properties (for example, see
  //    Accessors::MakeModuleNamespaceEntryInfo).
  name: Name;
  // For simulator builds this field contains the address of the trampoline
  // callable from generated code and for native builds - the address of
  // the getter C function.
  getter: ExternalPointer;
  setter: ExternalPointer;
  flags: AccessorInfoFlags;
  @if(TAGGED_SIZE_8_BYTES) optional_padding: uint32;
  @ifnot(TAGGED_SIZE_8_BYTES) optional_padding: void;
}