/// <summary> 读取对象
/// </summary>
/// <param name="reader"></param>
/// <param name="type"></param>
/// <returns></returns>
private object ReadObject(UnsafeJsonReader reader, Type type)
{
object obj;
if (type == typeof(object))
{
obj = new Dictionary <string, object>();
FillDictionary((IDictionary)obj, typeof(string), typeof(object), reader);
return(obj);
}
if (typeof(IDictionary).IsAssignableFrom(type))
{
var st = GenericCollection.GetDict(type);
if (st.Init == null)
{
ThrowNoConstructor(type);
}
obj = st.Init();
FillDictionary((IDictionary)obj, st.KeyType, st.ElementType, reader);
return(obj);
}
var lit = Literacy.Cache(type, true);
obj = lit.NewObject();
FillObject(obj, lit, reader);
return(obj);
}
/// <summary> 将json字符串转换为指定对象
/// </summary>
public Object ToObject(Type type, string json)
{
if (json == null)
{
return(null);
}
if (type == null)
{
object obj = null;
FillObject(ref obj, null, json);
return(obj);
}
if (type.IsArray)
{
object arr = new ArrayList();
var eleType = type.GetElementType();
FillObject(ref arr, Literacy.Cache(eleType, true), json);
return(((ArrayList)arr).ToArray(eleType));
}
else
{
var lit = Literacy.Cache(type, true);
var obj = lit.NewObject();
FillObject(ref obj, lit, json);
return(obj);
}
}
/// <summary> 将json字符串中的数据填充到指定对象
/// </summary>
public void FillObject(object obj, string json)
{
if (obj == null)
{
throw new ArgumentNullException("obj");
}
if (json != null)
{
FillObject(ref obj, Literacy.Cache(obj.GetType(), true), json);
}
}
/// <summary> 将未知对象按属性名和值转换为Json中的键值字符串写入Buffer
/// </summary>
/// <param name="obj">非null的位置对象</param>
protected override void AppendOther(object obj)
{
Type type = obj.GetType();
Literacy lit = Literacy.Cache(type, true);
UnsafeAppend('{');
var ee = lit.Property.GetEnumerator();
var fix = "";
while (ee.MoveNext())
{
var p = ee.Current;
var value = p.GetValue(obj);
if (value != null)
{
UnsafeAppend(fix);
AppendKey(p.Name, false);
AppendObject(value);
fix = ",";
}
}
UnsafeAppend('}');
}
private void FillObject(ref object obj, Literacy lit, string json)
{
if (json == null || json.Length == 0)
{
return;
}
unsafe
{
fixed(char *p = json)
{
UnsafeJsonReader reader = new UnsafeJsonReader(p, json.Length);
if (reader.IsEnd())
{
return;
}
if (reader.Current == '{')
{
reader.MoveNext();
if (obj == null)
{
obj = new Dictionary <string, object>();
lit = Literacy.Cache(typeof(Dictionary <string, object>), true);
}
FillObject(obj, lit, reader);
if (reader.Current != '}')
{
ThrowMissingCharException('}');
}
}
else if (reader.Current == '[')
{
reader.MoveNext();
if (obj == null)
{
obj = new ArrayList();
FillList((IList)obj, typeof(object), reader);
}
else if (obj is ArrayList)
{
FillList((IList)obj, lit.Type, reader);
}
else
{
var st = GenericCollection.GetList(lit.Type);
if (st == null)
{
ThrowNoIList(lit.Type);
}
FillList((IList)obj, st.ElementType, reader);
}
if (reader.Current != ']')
{
ThrowMissingCharException(']');
}
}
else
{
ThrowException("起始字符:" + reader.Current);
}
reader.MoveNext();
if (reader.IsEnd())
{
reader.Dispose();
}
else
{
ThrowException("错误的结束字符:" + reader.Current);
}
}
}
}
