mozjs_sys 0.67.1

System crate for the Mozilla SpiderMonkey JavaScript engine.
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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * vim: set ts=8 sts=2 et sw=2 tw=80:
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef vm_List_inl_h
#define vm_List_inl_h

#include "vm/List.h"

#include "gc/Rooting.h"
#include "vm/JSContext.h"
#include "vm/NativeObject.h"

#include "vm/JSObject-inl.h"
#include "vm/NativeObject-inl.h"

inline /* static */ js::ListObject* js::ListObject::create(JSContext* cx) {
  return NewObjectWithNullTaggedProto<ListObject>(cx);
}

inline bool js::ListObject::append(JSContext* cx, HandleValue value) {
  uint32_t len = length();

  if (!ensureElements(cx, len + 1)) {
    return false;
  }

  ensureDenseInitializedLength(cx, len, 1);
  setDenseElementWithType(cx, len, value);
  return true;
}

inline JS::Value js::ListObject::popFirst(JSContext* cx) {
  uint32_t len = length();
  MOZ_ASSERT(len > 0);

  Value entry = get(0);
  if (!tryShiftDenseElements(1)) {
    moveDenseElements(0, 1, len - 1);
    setDenseInitializedLength(len - 1);
    shrinkElements(cx, len - 1);
  }

  MOZ_ASSERT(length() == len - 1);
  return entry;
}

template <class T>
inline T& js::ListObject::popFirstAs(JSContext* cx) {
  return popFirst(cx).toObject().as<T>();
}

#endif  // vm_List_inl_h