/* THIS FILE IS AUTOGENERATED FROM HTMLCanvasElement.webidl BY Codegen.py - DO NOT EDIT */

#include "HTMLCanvasElementBinding.h"
#include "HTMLElementBinding.h"
#include "WrapperFactory.h"
#include "mozilla/FloatingPoint.h"
#include "mozilla/OwningNonNull.h"
#include "mozilla/Preferences.h"
#include "mozilla/dom/BindingUtils.h"
#include "mozilla/dom/CanvasCaptureMediaStream.h"
#include "mozilla/dom/DOMJSClass.h"
#include "mozilla/dom/File.h"
#include "mozilla/dom/HTMLCanvasElement.h"
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "mozilla/dom/Nullable.h"
#include "mozilla/dom/OffscreenCanvas.h"
#include "mozilla/dom/PrimitiveConversions.h"
#include "mozilla/dom/XrayExpandoClass.h"
#include "nsContentUtils.h"
#include "nsISupports.h"

namespace mozilla {
namespace dom {

void
PrintCallback::Call(JSContext* cx, JS::Handle<JS::Value> aThisVal, HTMLCanvasPrintState& ctx, ErrorResult& aRv)
{
  JS::Rooted<JS::Value> rval(cx, JS::UndefinedValue());
  JS::AutoValueVector argv(cx);
  if (!argv.resize(1)) {
    aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
    return;
  }
  unsigned argc = 1;

  do {
    if (!GetOrCreateDOMReflector(cx, ctx, argv[0])) {
      MOZ_ASSERT(true || JS_IsExceptionPending(cx));
      aRv.Throw(NS_ERROR_UNEXPECTED);
      return;
    }
    break;
  } while (0);

  JS::Rooted<JS::Value> callable(cx, JS::ObjectValue(*mCallback));
  if (!JS::Call(cx, aThisVal, callable,
                JS::HandleValueArray::subarray(argv, 0, argc), &rval)) {
    aRv.NoteJSContextException(cx);
    return;
  }
}



void
BlobCallback::Call(JSContext* cx, JS::Handle<JS::Value> aThisVal, Blob& blob, ErrorResult& aRv)
{
  JS::Rooted<JS::Value> rval(cx, JS::UndefinedValue());
  JS::AutoValueVector argv(cx);
  if (!argv.resize(1)) {
    aRv.Throw(NS_ERROR_OUT_OF_MEMORY);
    return;
  }
  unsigned argc = 1;

  do {
    if (!GetOrCreateDOMReflector(cx, blob, argv[0])) {
      MOZ_ASSERT(true || JS_IsExceptionPending(cx));
      aRv.Throw(NS_ERROR_UNEXPECTED);
      return;
    }
    break;
  } while (0);

  JS::Rooted<JS::Value> callable(cx, JS::ObjectValue(*mCallback));
  if (!JS::Call(cx, aThisVal, callable,
                JS::HandleValueArray::subarray(argv, 0, argc), &rval)) {
    aRv.NoteJSContextException(cx);
    return;
  }
}



namespace binding_detail {
} // namespace binding_detail


namespace binding_detail {
} // namespace binding_detail


namespace HTMLCanvasElementBinding {

static_assert(IsRefcounted<NativeType>::value == IsRefcounted<HTMLElementBinding::NativeType>::value,
              "Can't inherit from an interface with a different ownership model.");

static bool
get_width(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, JSJitGetterCallArgs args)
{
  uint32_t result(self->Width());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setNumber(result);
  return true;
}

static bool
set_width(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, JSJitSetterCallArgs args)
{
  uint32_t arg0;
  if (!ValueToPrimitive<uint32_t, eDefault>(cx, args[0], &arg0)) {
    return false;
  }
  binding_detail::FastErrorResult rv;
  self->SetWidth(arg0, rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;
}

static const JSJitInfo width_getterinfo = {
  { (JSJitGetterOp)get_width },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasDOMSets, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* returnType.  Not relevant for setters. */
  true,  /* isInfallible. False in setters. */
  true,  /* isMovable.  Not relevant for setters. */
  true, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");
static const JSJitInfo width_setterinfo = {
  { (JSJitGetterOp)set_width },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Setter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
get_height(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, JSJitGetterCallArgs args)
{
  uint32_t result(self->Height());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setNumber(result);
  return true;
}

static bool
set_height(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, JSJitSetterCallArgs args)
{
  uint32_t arg0;
  if (!ValueToPrimitive<uint32_t, eDefault>(cx, args[0], &arg0)) {
    return false;
  }
  binding_detail::FastErrorResult rv;
  self->SetHeight(arg0, rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;
}

static const JSJitInfo height_getterinfo = {
  { (JSJitGetterOp)get_height },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasDOMSets, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_DOUBLE,  /* returnType.  Not relevant for setters. */
  true,  /* isInfallible. False in setters. */
  true,  /* isMovable.  Not relevant for setters. */
  true, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");
static const JSJitInfo height_setterinfo = {
  { (JSJitGetterOp)set_height },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Setter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
getContext(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, const JSJitMethodCallArgs& args)
{
  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "HTMLCanvasElement.getContext");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  JS::Rooted<JS::Value> arg1(cx);
  if (args.hasDefined(1)) {
    arg1 = args[1];
  } else {
    arg1 = JS::NullValue();
  }
  binding_detail::FastErrorResult rv;
  auto result(StrongOrRawPtr<nsISupports>(self->GetContext(cx, NonNullHelper(Constify(arg0)), arg1, rv)));
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!result) {
    args.rval().setNull();
    return true;
  }
  if (!WrapObject(cx, result, args.rval())) {
    return false;
  }
  return true;
}

static const JSJitInfo getContext_methodinfo = {
  { (JSJitGetterOp)getContext },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNKNOWN,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
toDataURL(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, const JSJitMethodCallArgs& args)
{
  binding_detail::FakeString arg0;
  if (args.hasDefined(0)) {
    if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
      return false;
    }
  } else {
    static const char16_t data[] = { 0 };
    arg0.Rebind(data, ArrayLength(data) - 1);
  }
  JS::Rooted<JS::Value> arg1(cx);
  if (args.hasDefined(1)) {
    arg1 = args[1];
  } else {
    arg1 = JS::UndefinedValue();
  }
  binding_detail::FastErrorResult rv;
  DOMString result;
  self->ToDataURL(cx, NonNullHelper(Constify(arg0)), arg1, result, rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!xpc::NonVoidStringToJsval(cx, result, args.rval())) {
    return false;
  }
  return true;
}

static const JSJitInfo toDataURL_methodinfo = {
  { (JSJitGetterOp)toDataURL },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_STRING,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
toBlob(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, const JSJitMethodCallArgs& args)
{
  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "HTMLCanvasElement.toBlob");
  }
  RootedCallback<OwningNonNull<binding_detail::FastBlobCallback>> arg0(cx);
  if (args[0].isObject()) {
    if (JS::IsCallable(&args[0].toObject())) {
      { // Scope for tempRoot
        JS::Rooted<JSObject*> tempRoot(cx, &args[0].toObject());
        arg0 = new binding_detail::FastBlobCallback(cx, tempRoot, mozilla::dom::GetIncumbentGlobal());
      }
    } else {
      ThrowErrorMessage(cx, MSG_NOT_CALLABLE, "Argument 1 of HTMLCanvasElement.toBlob");
      return false;
    }
  } else {
    ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Argument 1 of HTMLCanvasElement.toBlob");
    return false;
  }
  binding_detail::FakeString arg1;
  if (args.hasDefined(1)) {
    if (!ConvertJSValueToString(cx, args[1], eStringify, eStringify, arg1)) {
      return false;
    }
  } else {
    static const char16_t data[] = { 0 };
    arg1.Rebind(data, ArrayLength(data) - 1);
  }
  JS::Rooted<JS::Value> arg2(cx);
  if (args.hasDefined(2)) {
    arg2 = args[2];
  } else {
    arg2 = JS::UndefinedValue();
  }
  binding_detail::FastErrorResult rv;
  self->ToBlob(cx, NonNullHelper(arg0), NonNullHelper(Constify(arg1)), arg2, rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setUndefined();
  return true;
}

static const JSJitInfo toBlob_methodinfo = {
  { (JSJitGetterOp)toBlob },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
get_mozOpaque(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, JSJitGetterCallArgs args)
{
  bool result(self->MozOpaque());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setBoolean(result);
  return true;
}

static bool
set_mozOpaque(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, JSJitSetterCallArgs args)
{
  bool arg0;
  if (!ValueToPrimitive<bool, eDefault>(cx, args[0], &arg0)) {
    return false;
  }
  binding_detail::FastErrorResult rv;
  self->SetMozOpaque(arg0, rv);
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;
}

static const JSJitInfo mozOpaque_getterinfo = {
  { (JSJitGetterOp)get_mozOpaque },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasDOMSets, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_BOOLEAN,  /* returnType.  Not relevant for setters. */
  true,  /* isInfallible. False in setters. */
  true,  /* isMovable.  Not relevant for setters. */
  true, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");
static const JSJitInfo mozOpaque_setterinfo = {
  { (JSJitGetterOp)set_mozOpaque },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Setter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
mozGetAsFile(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, const JSJitMethodCallArgs& args)
{
  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "HTMLCanvasElement.mozGetAsFile");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  binding_detail::FakeString arg1;
  if (args.hasDefined(1)) {
    if (!ConvertJSValueToString(cx, args[1], eNull, eNull, arg1)) {
      return false;
    }
  } else {
    arg1.SetIsVoid(true);
  }
  binding_detail::FastErrorResult rv;
  auto result(StrongOrRawPtr<mozilla::dom::File>(self->MozGetAsFile(NonNullHelper(Constify(arg0)), NonNullHelper(Constify(arg1)), rv)));
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
    MOZ_ASSERT(true || JS_IsExceptionPending(cx));
    return false;
  }
  return true;
}

static const JSJitInfo mozGetAsFile_methodinfo = {
  { (JSJitGetterOp)mozGetAsFile },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
MozGetIPCContext(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, const JSJitMethodCallArgs& args)
{
  if (MOZ_UNLIKELY(args.length() < 1)) {
    return ThrowErrorMessage(cx, MSG_MISSING_ARGUMENTS, "HTMLCanvasElement.MozGetIPCContext");
  }
  binding_detail::FakeString arg0;
  if (!ConvertJSValueToString(cx, args[0], eStringify, eStringify, arg0)) {
    return false;
  }
  binding_detail::FastErrorResult rv;
  auto result(StrongOrRawPtr<nsISupports>(self->MozGetIPCContext(NonNullHelper(Constify(arg0)), rv)));
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!result) {
    args.rval().setNull();
    return true;
  }
  if (!WrapObject(cx, result, args.rval())) {
    return false;
  }
  return true;
}

static const JSJitInfo MozGetIPCContext_methodinfo = {
  { (JSJitGetterOp)MozGetIPCContext },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNKNOWN,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
get_mozPrintCallback(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, JSJitGetterCallArgs args)
{
  RefPtr<PrintCallback> result(self->GetMozPrintCallback());
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (result) {
    args.rval().setObject(*GetCallbackFromCallbackObject(result));
    if (!MaybeWrapObjectOrNullValue(cx, args.rval())) {
      return false;
    }
    return true;
  } else {
    args.rval().setNull();
    return true;
  }
}

static bool
set_mozPrintCallback(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, JSJitSetterCallArgs args)
{
  RootedCallback<RefPtr<binding_detail::FastPrintCallback>> arg0(cx);
  if (args[0].isObject()) {
    if (JS::IsCallable(&args[0].toObject())) {
      { // Scope for tempRoot
        JS::Rooted<JSObject*> tempRoot(cx, &args[0].toObject());
        arg0 = new binding_detail::FastPrintCallback(cx, tempRoot, mozilla::dom::GetIncumbentGlobal());
      }
    } else {
      ThrowErrorMessage(cx, MSG_NOT_CALLABLE, "Value being assigned to HTMLCanvasElement.mozPrintCallback");
      return false;
    }
  } else if (args[0].isNullOrUndefined()) {
    arg0 = nullptr;
  } else {
    ThrowErrorMessage(cx, MSG_NOT_OBJECT, "Value being assigned to HTMLCanvasElement.mozPrintCallback");
    return false;
  }
  self->SetMozPrintCallback(Constify(arg0));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));

  return true;
}

static const JSJitInfo mozPrintCallback_getterinfo = {
  { (JSJitGetterOp)get_mozPrintCallback },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNKNOWN,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");
static const JSJitInfo mozPrintCallback_setterinfo = {
  { (JSJitGetterOp)set_mozPrintCallback },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Setter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
captureStream(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, const JSJitMethodCallArgs& args)
{
  if (!mozilla::dom::EnforceNotInPrerendering(cx, obj)) {
      // Return false from the JSNative in order to trigger
      // an uncatchable exception.
      MOZ_ASSERT(!JS_IsExceptionPending(cx));
      return false;
  }
  Optional<double> arg0;
  if (args.hasDefined(0)) {
    arg0.Construct();
    if (!ValueToPrimitive<double, eDefault>(cx, args[0], &arg0.Value())) {
      return false;
    } else if (!mozilla::IsFinite(arg0.Value())) {
      ThrowErrorMessage(cx, MSG_NOT_FINITE, "Argument 1 of HTMLCanvasElement.captureStream");
      return false;
    }
  }
  binding_detail::FastErrorResult rv;
  auto result(StrongOrRawPtr<mozilla::dom::CanvasCaptureMediaStream>(self->CaptureStream(Constify(arg0), rv)));
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
    MOZ_ASSERT(true || JS_IsExceptionPending(cx));
    return false;
  }
  return true;
}

static const JSJitInfo captureStream_methodinfo = {
  { (JSJitGetterOp)captureStream },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
transferControlToOffscreen(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasElement* self, const JSJitMethodCallArgs& args)
{
  binding_detail::FastErrorResult rv;
  auto result(StrongOrRawPtr<mozilla::dom::OffscreenCanvas>(self->TransferControlToOffscreen(rv)));
  if (MOZ_UNLIKELY(rv.MaybeSetPendingException(cx))) {
    return false;
  }
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!GetOrCreateDOMReflector(cx, result, args.rval())) {
    MOZ_ASSERT(true || JS_IsExceptionPending(cx));
    return false;
  }
  return true;
}

static const JSJitInfo transferControlToOffscreen_methodinfo = {
  { (JSJitGetterOp)transferControlToOffscreen },
  { prototypes::id::HTMLCanvasElement },
  { PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
{
  mozilla::dom::HTMLCanvasElement* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::HTMLCanvasElement>(obj);
  // We don't want to preserve if we don't have a wrapper, and we
  // obviously can't preserve if we're not initialized.
  if (self && self->GetWrapperPreserveColor()) {
    PreserveWrapper(self);
  }
  return true;
}

static void
_finalize(js::FreeOp* fop, JSObject* obj)
{
  mozilla::dom::HTMLCanvasElement* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::HTMLCanvasElement>(obj);
  if (self) {
    ClearWrapper(self, self);
    AddForDeferredFinalization<mozilla::dom::HTMLCanvasElement>(self);
  }
}

static void
_objectMoved(JSObject* obj, const JSObject* old)
{
  mozilla::dom::HTMLCanvasElement* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::HTMLCanvasElement>(obj);
  if (self) {
    UpdateWrapper(self, self, obj, old);
  }
}

static const JSFunctionSpec sMethods_specs[] = {
  JS_FNSPEC("getContext", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&getContext_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
  JS_FNSPEC("toDataURL", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&toDataURL_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
  JS_FNSPEC("toBlob", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&toBlob_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
  JS_FNSPEC("mozGetAsFile", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&mozGetAsFile_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
  JS_FS_END,
  JS_FNSPEC("captureStream", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&captureStream_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
  JS_FS_END,
  JS_FNSPEC("transferControlToOffscreen", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&transferControlToOffscreen_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
  JS_FS_END
};

static PrefableDisablers sMethods_disablers5 = {
  true, false, 0, nullptr
};

static PrefableDisablers sMethods_disablers7 = {
  true, false, 0, nullptr
};

// Can't be const because the pref-enabled boolean needs to be writable
static Prefable<const JSFunctionSpec> sMethods[] = {
  { nullptr, &sMethods_specs[0] },
  { &sMethods_disablers5, &sMethods_specs[5] },
  { &sMethods_disablers7, &sMethods_specs[7] },
  { nullptr, nullptr }
};

static jsid sMethods_ids[9];

static const JSFunctionSpec sChromeMethods_specs[] = {
  JS_FNSPEC("MozGetIPCContext", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&MozGetIPCContext_methodinfo), 1, JSPROP_ENUMERATE, nullptr),
  JS_FS_END
};


// Can't be const because the pref-enabled boolean needs to be writable
static Prefable<const JSFunctionSpec> sChromeMethods[] = {
  { nullptr, &sChromeMethods_specs[0] },
  { nullptr, nullptr }
};

static jsid sChromeMethods_ids[2];

static const JSPropertySpec sAttributes_specs[] = {
  { "width", JSPROP_SHARED | JSPROP_ENUMERATE, { { { { GenericBindingGetter, &width_getterinfo } }, { { GenericBindingSetter, &width_setterinfo } } } } },
  { "height", JSPROP_SHARED | JSPROP_ENUMERATE, { { { { GenericBindingGetter, &height_getterinfo } }, { { GenericBindingSetter, &height_setterinfo } } } } },
  { "mozOpaque", JSPROP_SHARED | JSPROP_ENUMERATE, { { { { GenericBindingGetter, &mozOpaque_getterinfo } }, { { GenericBindingSetter, &mozOpaque_setterinfo } } } } },
  { "mozPrintCallback", JSPROP_SHARED | JSPROP_ENUMERATE, { { { { GenericBindingGetter, &mozPrintCallback_getterinfo } }, { { GenericBindingSetter, &mozPrintCallback_setterinfo } } } } },
  JS_PS_END
};


// Can't be const because the pref-enabled boolean needs to be writable
static Prefable<const JSPropertySpec> sAttributes[] = {
  { nullptr, &sAttributes_specs[0] },
  { nullptr, nullptr }
};

static jsid sAttributes_ids[5];


static const NativePropertiesN<2> sNativeProperties = {
  -1,
  false, 0,
  false, 0,
  true,  0 /* sMethods */,
  true,  1 /* sAttributes */,
  false, 0,
  false, 0,
  false, 0,
  {
    { sMethods, sMethods_ids, sMethods_specs },
    { sAttributes, sAttributes_ids, sAttributes_specs }
  }
};

static const NativePropertiesN<1> sChromeOnlyNativeProperties = {
  -1,
  false, 0,
  false, 0,
  true,  0 /* sChromeMethods */,
  false, 0,
  false, 0,
  false, 0,
  false, 0,
  {
    { sChromeMethods, sChromeMethods_ids, sChromeMethods_specs }
  }
};

static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
  {
    "Function",
    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
    &sBoringInterfaceObjectClassClassOps,
    JS_NULL_CLASS_SPEC,
    JS_NULL_CLASS_EXT,
    &sInterfaceObjectClassObjectOps
  },
  eInterface,
  true,
  prototypes::id::HTMLCanvasElement,
  PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth,
  sNativePropertyHooks,
  "function HTMLCanvasElement() {\n    [native code]\n}",
  HTMLElementBinding::GetConstructorObject
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "HTMLCanvasElementPrototype",
    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
    JS_NULL_CLASS_OPS,
    JS_NULL_CLASS_SPEC,
    JS_NULL_CLASS_EXT,
    JS_NULL_OBJECT_OPS
  },
  eInterfacePrototype,
  false,
  prototypes::id::HTMLCanvasElement,
  PrototypeTraits<prototypes::id::HTMLCanvasElement>::Depth,
  sNativePropertyHooks,
  "[object HTMLCanvasElementPrototype]",
  HTMLElementBinding::GetProtoObject
};

JSObject*
DefineDOMInterface(JSContext* aCx, JS::Handle<JSObject*> aGlobal, JS::Handle<jsid> id, bool aDefineOnGlobal)
{
  return GetConstructorObjectHandle(aCx, aDefineOnGlobal);
}

static const js::ClassOps sClassOps = {
  _addProperty, /* addProperty */
  nullptr,               /* delProperty */
  nullptr,               /* getProperty */
  nullptr,               /* setProperty */
  nullptr, /* enumerate */
  nullptr, /* resolve */
  nullptr, /* mayResolve */
  _finalize, /* finalize */
  nullptr, /* call */
  nullptr,               /* hasInstance */
  nullptr,               /* construct */
  nullptr, /* trace */
};

static const js::ClassExtension sClassExtension = {
  nullptr, /* weakmapKeyDelegateOp */
  _objectMoved /* objectMovedOp */
};

static const DOMJSClass sClass = {
  { "HTMLCanvasElement",
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
    &sClassOps,
    JS_NULL_CLASS_SPEC,
    &sClassExtension,
    JS_NULL_OBJECT_OPS
  },
  { prototypes::id::EventTarget, prototypes::id::Node, prototypes::id::Element, prototypes::id::HTMLElement, prototypes::id::HTMLCanvasElement, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
  IsBaseOf<nsISupports, mozilla::dom::HTMLCanvasElement >::value,
  sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::HTMLCanvasElement>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::HTMLCanvasElement>::Get()
};
static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
              "Must have the right minimal number of reserved slots.");
static_assert(1 >= 1,
              "Must have enough reserved slots.");

const JSClass*
GetJSClass()
{
  return sClass.ToJSClass();
}

bool
Wrap(JSContext* aCx, mozilla::dom::HTMLCanvasElement* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  MOZ_ASSERT(static_cast<mozilla::dom::HTMLCanvasElement*>(aObject) ==
             reinterpret_cast<mozilla::dom::HTMLCanvasElement*>(aObject),
             "Multiple inheritance for mozilla::dom::HTMLCanvasElement is broken.");
  MOZ_ASSERT(static_cast<nsGenericHTMLElement*>(aObject) ==
             reinterpret_cast<nsGenericHTMLElement*>(aObject),
             "Multiple inheritance for nsGenericHTMLElement is broken.");
  MOZ_ASSERT(static_cast<mozilla::dom::Element*>(aObject) ==
             reinterpret_cast<mozilla::dom::Element*>(aObject),
             "Multiple inheritance for mozilla::dom::Element is broken.");
  MOZ_ASSERT(static_cast<nsINode*>(aObject) ==
             reinterpret_cast<nsINode*>(aObject),
             "Multiple inheritance for nsINode is broken.");
  MOZ_ASSERT(static_cast<mozilla::dom::EventTarget*>(aObject) ==
             reinterpret_cast<mozilla::dom::EventTarget*>(aObject),
             "Multiple inheritance for mozilla::dom::EventTarget is broken.");
  MOZ_ASSERT(ToSupportsIsCorrect(aObject));
  MOZ_ASSERT(!aCache->GetWrapper(),
             "You should probably not be using Wrap() directly; use "
             "GetOrCreateDOMReflector instead");

  MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
             "nsISupports must be on our primary inheritance chain");

  JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
  if (!global) {
    return false;
  }
  MOZ_ASSERT(JS_IsGlobalObject(global));
  MOZ_ASSERT(!JS::ObjectIsMarkedGray(global));

  // That might have ended up wrapping us already, due to the wonders
  // of XBL.  Check for that, and bail out as needed.
  aReflector.set(aCache->GetWrapper());
  if (aReflector) {
#ifdef DEBUG
    binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
#endif // DEBUG
    return true;
  }

  JSAutoCompartment ac(aCx, global);
  JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
  if (!canonicalProto) {
    return false;
  }
  JS::Rooted<JSObject*> proto(aCx);
  if (aGivenProto) {
    proto = aGivenProto;
    // Unfortunately, while aGivenProto was in the compartment of aCx
    // coming in, we changed compartments to that of "parent" so may need
    // to wrap the proto here.
    if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
      if (!JS_WrapObject(aCx, &proto)) {
        return false;
      }
    }
  } else {
    proto = canonicalProto;
  }

  BindingJSObjectCreator<mozilla::dom::HTMLCanvasElement> creator(aCx);
  creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
  if (!aReflector) {
    return false;
  }

  aCache->SetWrapper(aReflector);
  creator.InitializationSucceeded();

  MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
             aCache->GetWrapperPreserveColor() == aReflector);
  // If proto != canonicalProto, we have to preserve our wrapper;
  // otherwise we won't be able to properly recreate it later, since
  // we won't know what proto to use.  Note that we don't check
  // aGivenProto here, since it's entirely possible (and even
  // somewhat common) to have a non-null aGivenProto which is the
  // same as canonicalProto.
  if (proto != canonicalProto) {
    PreserveWrapper(aObject);
  }

  return true;
}

const NativePropertyHooks sNativePropertyHooks[] = { {
  nullptr,
  nullptr,
  nullptr,
  { sNativeProperties.Upcast(), sChromeOnlyNativeProperties.Upcast() },
  prototypes::id::HTMLCanvasElement,
  constructors::id::HTMLCanvasElement,
  HTMLElementBinding::sNativePropertyHooks,
  &DefaultXrayExpandoObjectClass
} };

void
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
{
  JS::Handle<JSObject*> parentProto(HTMLElementBinding::GetProtoObjectHandle(aCx));
  if (!parentProto) {
    return;
  }

  JS::Handle<JSObject*> constructorProto(HTMLElementBinding::GetConstructorObjectHandle(aCx));
  if (!constructorProto) {
    return;
  }

  static bool sIdsInited = false;
  if (!sIdsInited && NS_IsMainThread()) {
    if (!InitIds(aCx, sChromeMethods, sChromeMethods_ids)) {
      return;
    }
    if (!InitIds(aCx, sMethods, sMethods_ids)) {
      return;
    }
    if (!InitIds(aCx, sAttributes, sAttributes_ids)) {
      return;
    }
    sIdsInited = true;
  }

  static bool sPrefCachesInited = false;
  if (!sPrefCachesInited && NS_IsMainThread()) {
    sPrefCachesInited = true;
    Preferences::AddBoolVarCache(&sMethods[1].disablers->enabled, "canvas.capturestream.enabled");
    Preferences::AddBoolVarCache(&sMethods[2].disablers->enabled, "gfx.offscreencanvas.enabled");
  }

  JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::HTMLCanvasElement);
  JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::HTMLCanvasElement);
  dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
                              &sPrototypeClass.mBase, protoCache,
                              constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr,
                              interfaceCache,
                              sNativeProperties.Upcast(),
                              nsContentUtils::ThreadsafeIsCallerChrome() ? sChromeOnlyNativeProperties.Upcast() : nullptr,
                              "HTMLCanvasElement", aDefineOnGlobal,
                              nullptr,
                              false);
}

JS::Handle<JSObject*>
GetProtoObjectHandle(JSContext* aCx)
{
  /* Get the interface prototype object for this class.  This will create the
     object as needed. */
  bool aDefineOnGlobal = true;

  /* Make sure our global is sane.  Hopefully we can remove this sometime */
  JSObject* global = JS::CurrentGlobalOrNull(aCx);
  if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
    return nullptr;
  }

  /* Check to see whether the interface objects are already installed */
  ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
  if (!protoAndIfaceCache.EntrySlotIfExists(prototypes::id::HTMLCanvasElement)) {
    JS::Rooted<JSObject*> rootedGlobal(aCx, global);
    CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
  }

  /*
   * The object might _still_ be null, but that's OK.
   *
   * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
   * traced by TraceProtoAndIfaceCache() and its contents are never
   * changed after they have been set.
   *
   * Calling address() avoids the read read barrier that does gray
   * unmarking, but it's not possible for the object to be gray here.
   */

  const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::HTMLCanvasElement);
  MOZ_ASSERT_IF(entrySlot, !JS::ObjectIsMarkedGray(entrySlot));
  return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
}

JS::Handle<JSObject*>
GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
{
  /* Get the interface object for this class.  This will create the object as
     needed. */

  /* Make sure our global is sane.  Hopefully we can remove this sometime */
  JSObject* global = JS::CurrentGlobalOrNull(aCx);
  if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
    return nullptr;
  }

  /* Check to see whether the interface objects are already installed */
  ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
  if (!protoAndIfaceCache.EntrySlotIfExists(constructors::id::HTMLCanvasElement)) {
    JS::Rooted<JSObject*> rootedGlobal(aCx, global);
    CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
  }

  /*
   * The object might _still_ be null, but that's OK.
   *
   * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
   * traced by TraceProtoAndIfaceCache() and its contents are never
   * changed after they have been set.
   *
   * Calling address() avoids the read read barrier that does gray
   * unmarking, but it's not possible for the object to be gray here.
   */

  const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::HTMLCanvasElement);
  MOZ_ASSERT_IF(entrySlot, !JS::ObjectIsMarkedGray(entrySlot));
  return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
}

JSObject*
GetConstructorObject(JSContext* aCx)
{
  return GetConstructorObjectHandle(aCx);
}

} // namespace HTMLCanvasElementBinding



namespace MozCanvasPrintStateBinding {

static bool
get_context(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasPrintState* self, JSJitGetterCallArgs args)
{
  auto result(StrongOrRawPtr<nsISupports>(self->Context()));
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  if (!WrapObject(cx, result, args.rval())) {
    return false;
  }
  return true;
}

static const JSJitInfo context_getterinfo = {
  { (JSJitGetterOp)get_context },
  { prototypes::id::MozCanvasPrintState },
  { PrototypeTraits<prototypes::id::MozCanvasPrintState>::Depth },
  JSJitInfo::Getter,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_OBJECT,  /* returnType.  Not relevant for setters. */
  false,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
done(JSContext* cx, JS::Handle<JSObject*> obj, mozilla::dom::HTMLCanvasPrintState* self, const JSJitMethodCallArgs& args)
{
  self->Done();
  MOZ_ASSERT(!JS_IsExceptionPending(cx));
  args.rval().setUndefined();
  return true;
}

static const JSJitInfo done_methodinfo = {
  { (JSJitGetterOp)done },
  { prototypes::id::MozCanvasPrintState },
  { PrototypeTraits<prototypes::id::MozCanvasPrintState>::Depth },
  JSJitInfo::Method,
  JSJitInfo::AliasEverything, /* aliasSet.  Not relevant for setters. */
  JSVAL_TYPE_UNDEFINED,  /* returnType.  Not relevant for setters. */
  true,  /* isInfallible. False in setters. */
  false,  /* isMovable.  Not relevant for setters. */
  false, /* isEliminatable.  Not relevant for setters. */
  false, /* isAlwaysInSlot.  Only relevant for getters. */
  false, /* isLazilyCachedInSlot.  Only relevant for getters. */
  false,  /* isTypedMethod.  Only relevant for methods. */
  0   /* Reserved slot index, if we're stored in a slot, else 0. */
};
static_assert(0 <= JSJitInfo::maxSlotIndex, "We won't fit");
static_assert(0 < 1, "There is no slot for us");

static bool
_addProperty(JSContext* cx, JS::Handle<JSObject*> obj, JS::Handle<jsid> id, JS::Handle<JS::Value> val)
{
  mozilla::dom::HTMLCanvasPrintState* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::HTMLCanvasPrintState>(obj);
  // We don't want to preserve if we don't have a wrapper, and we
  // obviously can't preserve if we're not initialized.
  if (self && self->GetWrapperPreserveColor()) {
    PreserveWrapper(self);
  }
  return true;
}

static void
_finalize(js::FreeOp* fop, JSObject* obj)
{
  mozilla::dom::HTMLCanvasPrintState* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::HTMLCanvasPrintState>(obj);
  if (self) {
    ClearWrapper(self, self);
    AddForDeferredFinalization<mozilla::dom::HTMLCanvasPrintState>(self);
  }
}

static void
_objectMoved(JSObject* obj, const JSObject* old)
{
  mozilla::dom::HTMLCanvasPrintState* self = UnwrapPossiblyNotInitializedDOMObject<mozilla::dom::HTMLCanvasPrintState>(obj);
  if (self) {
    UpdateWrapper(self, self, obj, old);
  }
}

static const JSFunctionSpec sMethods_specs[] = {
  JS_FNSPEC("done", GenericBindingMethod, reinterpret_cast<const JSJitInfo*>(&done_methodinfo), 0, JSPROP_ENUMERATE, nullptr),
  JS_FS_END
};


// Can't be const because the pref-enabled boolean needs to be writable
static Prefable<const JSFunctionSpec> sMethods[] = {
  { nullptr, &sMethods_specs[0] },
  { nullptr, nullptr }
};

static jsid sMethods_ids[2];

static const JSPropertySpec sAttributes_specs[] = {
  { "context", JSPROP_SHARED | JSPROP_ENUMERATE, { { { { GenericBindingGetter, &context_getterinfo } }, JSNATIVE_WRAPPER(nullptr) } } },
  JS_PS_END
};


// Can't be const because the pref-enabled boolean needs to be writable
static Prefable<const JSPropertySpec> sAttributes[] = {
  { nullptr, &sAttributes_specs[0] },
  { nullptr, nullptr }
};

static jsid sAttributes_ids[2];


static const NativePropertiesN<2> sNativeProperties = {
  -1,
  false, 0,
  false, 0,
  true,  0 /* sMethods */,
  true,  1 /* sAttributes */,
  false, 0,
  false, 0,
  false, 0,
  {
    { sMethods, sMethods_ids, sMethods_specs },
    { sAttributes, sAttributes_ids, sAttributes_specs }
  }
};

static const DOMIfaceAndProtoJSClass sInterfaceObjectClass = {
  {
    "Function",
    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_SLOTS_BASE),
    &sBoringInterfaceObjectClassClassOps,
    JS_NULL_CLASS_SPEC,
    JS_NULL_CLASS_EXT,
    &sInterfaceObjectClassObjectOps
  },
  eInterface,
  true,
  prototypes::id::MozCanvasPrintState,
  PrototypeTraits<prototypes::id::MozCanvasPrintState>::Depth,
  sNativePropertyHooks,
  "function MozCanvasPrintState() {\n    [native code]\n}",
  JS::GetRealmFunctionPrototype
};

static const DOMIfaceAndProtoJSClass sPrototypeClass = {
  {
    "MozCanvasPrintStatePrototype",
    JSCLASS_IS_DOMIFACEANDPROTOJSCLASS | JSCLASS_HAS_RESERVED_SLOTS(DOM_INTERFACE_PROTO_SLOTS_BASE),
    JS_NULL_CLASS_OPS,
    JS_NULL_CLASS_SPEC,
    JS_NULL_CLASS_EXT,
    JS_NULL_OBJECT_OPS
  },
  eInterfacePrototype,
  false,
  prototypes::id::MozCanvasPrintState,
  PrototypeTraits<prototypes::id::MozCanvasPrintState>::Depth,
  sNativePropertyHooks,
  "[object MozCanvasPrintStatePrototype]",
  JS::GetRealmObjectPrototype
};

bool
ConstructorEnabled(JSContext* aCx, JS::Handle<JSObject*> aObj)
{
  return nsContentUtils::ThreadsafeIsCallerChrome();
}

JSObject*
DefineDOMInterface(JSContext* aCx, JS::Handle<JSObject*> aGlobal, JS::Handle<jsid> id, bool aDefineOnGlobal)
{
  return GetConstructorObjectHandle(aCx, aDefineOnGlobal);
}

static const js::ClassOps sClassOps = {
  _addProperty, /* addProperty */
  nullptr,               /* delProperty */
  nullptr,               /* getProperty */
  nullptr,               /* setProperty */
  nullptr, /* enumerate */
  nullptr, /* resolve */
  nullptr, /* mayResolve */
  _finalize, /* finalize */
  nullptr, /* call */
  nullptr,               /* hasInstance */
  nullptr,               /* construct */
  nullptr, /* trace */
};

static const js::ClassExtension sClassExtension = {
  nullptr, /* weakmapKeyDelegateOp */
  _objectMoved /* objectMovedOp */
};

static const DOMJSClass sClass = {
  { "MozCanvasPrintState",
    JSCLASS_IS_DOMJSCLASS | JSCLASS_FOREGROUND_FINALIZE | JSCLASS_HAS_RESERVED_SLOTS(1),
    &sClassOps,
    JS_NULL_CLASS_SPEC,
    &sClassExtension,
    JS_NULL_OBJECT_OPS
  },
  { prototypes::id::MozCanvasPrintState, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count, prototypes::id::_ID_Count },
  IsBaseOf<nsISupports, mozilla::dom::HTMLCanvasPrintState >::value,
  sNativePropertyHooks,
  FindAssociatedGlobalForNative<mozilla::dom::HTMLCanvasPrintState>::Get,
  GetProtoObjectHandle,
  GetCCParticipant<mozilla::dom::HTMLCanvasPrintState>::Get()
};
static_assert(1 == DOM_INSTANCE_RESERVED_SLOTS,
              "Must have the right minimal number of reserved slots.");
static_assert(1 >= 1,
              "Must have enough reserved slots.");

const JSClass*
GetJSClass()
{
  return sClass.ToJSClass();
}

bool
Wrap(JSContext* aCx, mozilla::dom::HTMLCanvasPrintState* aObject, nsWrapperCache* aCache, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector)
{
  MOZ_ASSERT(static_cast<mozilla::dom::HTMLCanvasPrintState*>(aObject) ==
             reinterpret_cast<mozilla::dom::HTMLCanvasPrintState*>(aObject),
             "Multiple inheritance for mozilla::dom::HTMLCanvasPrintState is broken.");
  MOZ_ASSERT(ToSupportsIsCorrect(aObject));
  MOZ_ASSERT(!aCache->GetWrapper(),
             "You should probably not be using Wrap() directly; use "
             "GetOrCreateDOMReflector instead");

  MOZ_ASSERT(ToSupportsIsOnPrimaryInheritanceChain(aObject, aCache),
             "nsISupports must be on our primary inheritance chain");

  JS::Rooted<JSObject*> global(aCx, FindAssociatedGlobal(aCx, aObject->GetParentObject()));
  if (!global) {
    return false;
  }
  MOZ_ASSERT(JS_IsGlobalObject(global));
  MOZ_ASSERT(!JS::ObjectIsMarkedGray(global));

  // That might have ended up wrapping us already, due to the wonders
  // of XBL.  Check for that, and bail out as needed.
  aReflector.set(aCache->GetWrapper());
  if (aReflector) {
#ifdef DEBUG
    binding_detail::AssertReflectorHasGivenProto(aCx, aReflector, aGivenProto);
#endif // DEBUG
    return true;
  }

  JSAutoCompartment ac(aCx, global);
  JS::Handle<JSObject*> canonicalProto = GetProtoObjectHandle(aCx);
  if (!canonicalProto) {
    return false;
  }
  JS::Rooted<JSObject*> proto(aCx);
  if (aGivenProto) {
    proto = aGivenProto;
    // Unfortunately, while aGivenProto was in the compartment of aCx
    // coming in, we changed compartments to that of "parent" so may need
    // to wrap the proto here.
    if (js::GetContextCompartment(aCx) != js::GetObjectCompartment(proto)) {
      if (!JS_WrapObject(aCx, &proto)) {
        return false;
      }
    }
  } else {
    proto = canonicalProto;
  }

  BindingJSObjectCreator<mozilla::dom::HTMLCanvasPrintState> creator(aCx);
  creator.CreateObject(aCx, sClass.ToJSClass(), proto, aObject, aReflector);
  if (!aReflector) {
    return false;
  }

  aCache->SetWrapper(aReflector);
  creator.InitializationSucceeded();

  MOZ_ASSERT(aCache->GetWrapperPreserveColor() &&
             aCache->GetWrapperPreserveColor() == aReflector);
  // If proto != canonicalProto, we have to preserve our wrapper;
  // otherwise we won't be able to properly recreate it later, since
  // we won't know what proto to use.  Note that we don't check
  // aGivenProto here, since it's entirely possible (and even
  // somewhat common) to have a non-null aGivenProto which is the
  // same as canonicalProto.
  if (proto != canonicalProto) {
    PreserveWrapper(aObject);
  }

  return true;
}

const NativePropertyHooks sNativePropertyHooks[] = { {
  nullptr,
  nullptr,
  nullptr,
  { sNativeProperties.Upcast(), nullptr },
  prototypes::id::MozCanvasPrintState,
  constructors::id::MozCanvasPrintState,
  nullptr,
  &DefaultXrayExpandoObjectClass
} };

void
CreateInterfaceObjects(JSContext* aCx, JS::Handle<JSObject*> aGlobal, ProtoAndIfaceCache& aProtoAndIfaceCache, bool aDefineOnGlobal)
{
  JS::Rooted<JSObject*> parentProto(aCx, JS::GetRealmObjectPrototype(aCx));
  if (!parentProto) {
    return;
  }

  JS::Rooted<JSObject*> constructorProto(aCx, JS::GetRealmFunctionPrototype(aCx));
  if (!constructorProto) {
    return;
  }

  static bool sIdsInited = false;
  if (!sIdsInited && NS_IsMainThread()) {
    if (!InitIds(aCx, sMethods, sMethods_ids)) {
      return;
    }
    if (!InitIds(aCx, sAttributes, sAttributes_ids)) {
      return;
    }
    sIdsInited = true;
  }

  JS::Heap<JSObject*>* protoCache = &aProtoAndIfaceCache.EntrySlotOrCreate(prototypes::id::MozCanvasPrintState);
  JS::Heap<JSObject*>* interfaceCache = &aProtoAndIfaceCache.EntrySlotOrCreate(constructors::id::MozCanvasPrintState);
  dom::CreateInterfaceObjects(aCx, aGlobal, parentProto,
                              &sPrototypeClass.mBase, protoCache,
                              constructorProto, &sInterfaceObjectClass.mBase, 0, nullptr,
                              interfaceCache,
                              sNativeProperties.Upcast(),
                              nullptr,
                              "MozCanvasPrintState", aDefineOnGlobal,
                              nullptr,
                              false);
}

JS::Handle<JSObject*>
GetProtoObjectHandle(JSContext* aCx)
{
  /* Get the interface prototype object for this class.  This will create the
     object as needed. */
  bool aDefineOnGlobal = true;

  /* Make sure our global is sane.  Hopefully we can remove this sometime */
  JSObject* global = JS::CurrentGlobalOrNull(aCx);
  if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
    return nullptr;
  }

  /* Check to see whether the interface objects are already installed */
  ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
  if (!protoAndIfaceCache.EntrySlotIfExists(prototypes::id::MozCanvasPrintState)) {
    JS::Rooted<JSObject*> rootedGlobal(aCx, global);
    CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
  }

  /*
   * The object might _still_ be null, but that's OK.
   *
   * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
   * traced by TraceProtoAndIfaceCache() and its contents are never
   * changed after they have been set.
   *
   * Calling address() avoids the read read barrier that does gray
   * unmarking, but it's not possible for the object to be gray here.
   */

  const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(prototypes::id::MozCanvasPrintState);
  MOZ_ASSERT_IF(entrySlot, !JS::ObjectIsMarkedGray(entrySlot));
  return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
}

JS::Handle<JSObject*>
GetConstructorObjectHandle(JSContext* aCx, bool aDefineOnGlobal)
{
  /* Get the interface object for this class.  This will create the object as
     needed. */

  /* Make sure our global is sane.  Hopefully we can remove this sometime */
  JSObject* global = JS::CurrentGlobalOrNull(aCx);
  if (!(js::GetObjectClass(global)->flags & JSCLASS_DOM_GLOBAL)) {
    return nullptr;
  }

  /* Check to see whether the interface objects are already installed */
  ProtoAndIfaceCache& protoAndIfaceCache = *GetProtoAndIfaceCache(global);
  if (!protoAndIfaceCache.EntrySlotIfExists(constructors::id::MozCanvasPrintState)) {
    JS::Rooted<JSObject*> rootedGlobal(aCx, global);
    CreateInterfaceObjects(aCx, rootedGlobal, protoAndIfaceCache, aDefineOnGlobal);
  }

  /*
   * The object might _still_ be null, but that's OK.
   *
   * Calling fromMarkedLocation() is safe because protoAndIfaceCache is
   * traced by TraceProtoAndIfaceCache() and its contents are never
   * changed after they have been set.
   *
   * Calling address() avoids the read read barrier that does gray
   * unmarking, but it's not possible for the object to be gray here.
   */

  const JS::Heap<JSObject*>& entrySlot = protoAndIfaceCache.EntrySlotMustExist(constructors::id::MozCanvasPrintState);
  MOZ_ASSERT_IF(entrySlot, !JS::ObjectIsMarkedGray(entrySlot));
  return JS::Handle<JSObject*>::fromMarkedLocation(entrySlot.address());
}

JSObject*
GetConstructorObject(JSContext* aCx)
{
  return GetConstructorObjectHandle(aCx);
}

} // namespace MozCanvasPrintStateBinding



} // namespace dom
} // namespace mozilla