private static ScriptValue Values([NotNull] ScriptArguments arg)
{
//https://tc39.github.io/ecma262/#sec-object.values
var obj = arg.Agent.ToObject(arg[0]);
var nameList = EnumerableOwnProperties(arg.Agent, obj, EnumerateType.Value);
return(ArrayIntrinsics.CreateArrayFromList(arg.Agent, nameList));
}
private static ScriptValue GetOwnPropertyKeys([NotNull] Agent agent, ScriptValue value, ScriptValue.Type type)
{
//https://tc39.github.io/ecma262/#sec-getownpropertykeys
var obj = agent.ToObject(value);
var keys = obj.OwnPropertyKeys();
var nameList = keys.Where(x => x.ValueType == type);
return(ArrayIntrinsics.CreateArrayFromList(agent, nameList));
}
private static ScriptValue OwnKeys([NotNull] ScriptArguments arg)
{
//https://tc39.github.io/ecma262/#sec-reflect.ownkeys
if (!arg[0].IsObject)
{
throw arg.Agent.CreateTypeError();
}
var keys = ((ScriptObject)arg[0]).OwnPropertyKeys();
return(ArrayIntrinsics.CreateArrayFromList(arg.Agent, keys));
}
private static IEnumerable <ScriptValue> EnumerableOwnProperties([NotNull] Agent agent, [NotNull] ScriptObject obj, EnumerateType type)
{
//https://tc39.github.io/ecma262/#sec-enumerableownproperties
var ownKeys = obj.OwnPropertyKeys();
var properties = new List <ScriptValue>();
foreach (var key in ownKeys)
{
if (key.IsString)
{
var descriptor = obj.GetOwnProperty(key);
if (descriptor != null && descriptor.Enumerable)
{
switch (type)
{
case EnumerateType.Key:
properties.Add(key);
break;
case EnumerateType.Value:
properties.Add(obj.Get(key));
break;
case EnumerateType.KeyValue:
properties.Add(ArrayIntrinsics.CreateArrayFromList(agent, new[] { key, obj.Get(key) }));
break;
default:
throw new ArgumentOutOfRangeException(nameof(type), type, null);
}
}
}
}
return(properties);
}
