deps/v8/src/objects/js-iterator-helpers.tq - main - githubmirror/node

deps/v8/src/objects/js-iterator-helpers.tq

51 строка1 KB

Michaël Zasso

deps: update V8 to 14.6.202.33

24 апр 2026, 19:01

24 апр 2026, 19:01f1e0b83

// Copyright 2023 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.

// Iterator helpers are specced as generators but implemented as direct
// iterators. As such, generator states need to be tracked manually.
extern enum JSIteratorHelperState extends uint31 {
  kSuspendedStart,
  kSuspendedYield,
  kExecuting,
  kCompleted
}

@abstract
extern class JSIteratorHelper extends JSObject {
  state: SmiTagged<JSIteratorHelperState>;
}

@abstract
extern class JSIteratorHelperSimple extends JSIteratorHelper {
  underlying_iterator: iterator::IteratorRecord;
}

extern class JSIteratorMapHelper extends JSIteratorHelperSimple {
  mapper: Callable;
  counter: Number;
}

extern class JSIteratorFilterHelper extends JSIteratorHelperSimple {
  predicate: Callable;
  counter: Number;
}

extern class JSIteratorTakeHelper extends JSIteratorHelperSimple {
  remaining: Number;
}

extern class JSIteratorDropHelper extends JSIteratorHelperSimple {
  remaining: Number;
}

extern class JSIteratorFlatMapHelper extends JSIteratorHelperSimple {
  mapper: Callable;
  counter: Number;
  inner_iterator: iterator::IteratorRecord;
}

extern class JSIteratorConcatHelper extends JSIteratorHelperSimple {
  iterables: FixedArray;
  current: Smi;
}