|
public DefineOwnProperty ( string key, |
||
| key | string | |
| d | ||
| return | void | |
/// <summary>
/// 15.4.4.4
/// </summary>
/// <param name="target"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public JsInstance Concat(JsObject target, JsInstance[] parameters)
{
JsArray array = Global.ArrayClass.New();
List <JsInstance> items = new List <JsInstance>();
items.Add(target);
items.AddRange(parameters);
int n = 0;
while (items.Count > 0)
{
JsInstance e = items[0];
items.RemoveAt(0);
if (e.Class == JsArray.TYPEOF)
{
for (int k = 0; k < ((JsArray)e).Length; k++)
{
string p = k.ToString();
JsInstance result = null;
if (((JsDictionaryObject)e).TryGetProperty(p, out result))
{
array.DefineOwnProperty(n.ToString(), new ValueDescriptor(this, n.ToString(), result));
n++;
}
}
}
else
{
array.DefineOwnProperty(n.ToString(), new ValueDescriptor(this, n.ToString(), e));
n++;
}
}
return(array);
}
/// <summary>
/// 15.4.4.12
/// </summary>
/// <param name="target"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public JsInstance Splice(JsObject target, JsInstance[] parameters)
{
JsArray array = Global.ArrayClass.New();
int relativeStart = Convert.ToInt32(parameters[0].ToNumber());
int actualStart = relativeStart < 0 ? Math.Max(target.Length + relativeStart, 0) : Math.Min(relativeStart, target.Length);
int actualDeleteCount = Math.Min(Math.Max(Convert.ToInt32(parameters[1].ToNumber()), 0), target.Length - actualStart);
int len = target.Length;
for (int k = 0; k < actualDeleteCount; k++)
{
string from = (relativeStart + k).ToString();
JsInstance result = null;
if (target.TryGetProperty(from, out result))
{
array.DefineOwnProperty(k.ToString(), new ValueDescriptor(target, k.ToString(), result));
}
}
List <JsInstance> items = new List <JsInstance>();
items.AddRange(parameters);
items.RemoveAt(0);
items.RemoveAt(0);
if (items.Count < actualDeleteCount)
{
for (int k = actualStart; k < len - actualDeleteCount; k++)
{
JsInstance result = null;
string from = (k + actualDeleteCount).ToString();
string to = (k + items.Count).ToString();
if (target.TryGetProperty(from, out result))
{
target[to] = result;
}
else
{
target.Delete(to);
}
}
for (int k = target.Length; k > len - actualDeleteCount + items.Count; k--)
{
target.Delete((k - 1).ToString());
}
}
else
{
for (int k = len - actualDeleteCount; k > actualStart; k--)
{
JsInstance result = null;
string from = (k + actualDeleteCount - 1).ToString();
string to = (k + items.Count - 1).ToString();
if (target.TryGetProperty(from, out result))
{
target[to] = result;
}
else
{
target.Delete(to);
}
}
if (target.length != int.MinValue && target.Prototype != Prototype)
{
target.length += len - actualDeleteCount + items.Count;
}
for (int k = 0; items.Count > 0; k++)
{
JsInstance e = items[0];
items.RemoveAt(0);
target[k.ToString()] = e;
}
}
return(array);
}
