/// <summary>
/// Get the builtin class prototype object.
/// </summary>
/// <param name="id">A JavaScript class identifier.</param>
public QuickJSValue GetClassPrototype(JSClassID id)
{
if (!Runtime.IsRegisteredClass(id))
{
throw new ArgumentOutOfRangeException(nameof(id));
}
JSValue proto = JS_GetClassProto(this.NativeInstance, id);
return(proto.Tag == JSTag.Object ? QuickJSValue.Wrap(this, proto) : null);
}
/// <summary>
/// Converts the value of the specified <see cref="JSValue"/> to a value of a .NET type.
/// </summary>
/// <param name="value">The <see cref="JSValue"/> to convert.</param>
/// <param name="freeValue">
/// A value indicating that the <see cref="JSValue"/> should be freed.
/// </param>
/// <returns>
/// An <see cref="Object"/> whose value is equivalent to <paramref name="value"/>.
/// </returns>
/// <exception cref="InvalidCastException">
/// This conversion is not supported.
/// </exception>
protected internal virtual object ConvertJSValueToClrObject(JSValue value, bool freeValue)
{
switch (value.Tag)
{
case JSTag.Bool:
return(value.ToBoolean());
case JSTag.Null:
return(null);
case JSTag.String:
string s = value.ToString(this.NativeInstance);
if (freeValue)
{
JS_FreeValue(this.NativeInstance, value);
}
return(s);
case JSTag.Int:
return(value.ToInt32());
case JSTag.Float64:
return(value.ToDouble());
case JSTag.Undefined:
return(QuickJSValue.Undefined);
default:
if (value.Tag <= JSTag.Object)
{
return(QuickJSValue.Wrap(this, value));
}
if (freeValue)
{
JS_FreeValue(this.NativeInstance, value);
}
throw new InvalidCastException();
}
}
/// <summary>
/// Retrieves a context's global object.
/// </summary>
/// <returns>A context's global object.</returns>
public QuickJSValue GetGlobal()
{
return(QuickJSValue.Wrap(this, JS_GetGlobalObject(this.NativeInstance)));
}
