public void ReadValue(JsonAction <object, JsonValueType> value, JsonAction readArray, JsonAction readObject)
{
if (value is null)
{
throw new ArgumentNullException(nameof(value));
}
if (readArray is null)
{
throw new ArgumentNullException(nameof(readArray));
}
if (readObject is null)
{
throw new ArgumentNullException(nameof(readObject));
}
if (Stacks.Peek().ArrayType != JsonArrayType.Unknown)
{
readArray();
return;
}
if (Stacks.Peek().ObjectType != JsonObjectType.Unknown)
{
readObject();
return;
}
Stacks.Peek().IsInitialized = true;
if (Stacks.Peek().Instance is null)
{
value(null, JsonValueType.Null);
return;
}
if (Stacks.Peek().Type is null)
{
Stacks.Peek().Type = Stacks.Peek().Instance.GetType();
}
if (JsonApi.TryGetValueType(Stacks.Peek().Type, out JsonValueType valueType, Config))
{
value(Stacks.Peek().Instance, valueType);
return;
}
if (JsonApi.TryGetArrayType(Stacks.Peek().Type, out Stacks.Peek().ArrayType))
{
readArray();
return;
}
if (JsonApi.TryGetObjectType(Stacks.Peek().Type, out Stacks.Peek().ObjectType))
{
readObject();
return;
}
throw new JsonNotSupportException(Stacks.Peek().Type);
}
void Initialize(bool isArray)
{
if (Stacks.Peek().IsInitialized)
{
return;
}
Stacks.Peek().IsInitialized = true;
if (Stacks.Peek().Instance is null)
{
return;
}
if (Stacks.Peek().Type is null)
{
Stacks.Peek().Type = Stacks.Peek().Instance.GetType();
}
if (isArray)
{
JsonApi.TryGetArrayType(Stacks.Peek().Type, out Stacks.Peek().ArrayType);
return;
}
JsonApi.TryGetObjectType(Stacks.Peek().Type, out Stacks.Peek().ObjectType);
}
public object BuildArray(Type type, object instance = null)
{
if (type is null)
{
throw new ArgumentNullException(nameof(type));
}
if (!JsonApi.TryGetArrayType(type, out JsonArrayType arrayType))
{
throw new JsonNotSupportException(type);
}
switch (arrayType)
{
default:
throw new JsonNotSupportException(arrayType);
case JsonArrayType.Array: {
JsonArray jsonArray = new JsonValueBuilder(Reader, Config).BuildArray();
List <int> bounds = new List <int> ();
MeasureArray(jsonArray, ref bounds);
if (bounds.Count != type.GetArrayRank())
{
throw new JsonException("数组维数不匹配");
}
Type elementType = type.GetElementType();
Array array = null;
bool create = false;
if (instance?.GetType() != type)
{
create = true;
}
else
{
array = (Array)instance;
for (int i = 0; i < array.Rank; i++)
{
if (array.GetLength(i) != bounds[i])
{
create = true;
break;
}
}
}
if (create)
{
if (bounds.Count == 1)
{
array = Array.CreateInstance(elementType, bounds[0]);
}
else
{
array = Array.CreateInstance(elementType, bounds.ToArray());
}
}
if (array.Rank == 1)
{
for (int i = 0; i < jsonArray.Count; i++)
{
JsonDeserializer deserializer = new JsonDeserializer(new JsonValueReader(jsonArray[i], Config), Config);
array.SetValue(deserializer.BuildValue(elementType, array.GetValue(i)), i);
}
return(array);
}
int[] indices = new int[bounds.Count];
int dimension = 0;
void ForEachArray(JsonArray currentArray)
{
int length = bounds[dimension];
for (int i = 0; i < length; i++)
{
indices[dimension] = i;
if (dimension == indices.Length - 1)
{
JsonDeserializer deserializer = new JsonDeserializer(new JsonValueReader(currentArray[i], Config), Config);
array.SetValue(deserializer.BuildValue(elementType, array.GetValue(indices)), indices);
continue;
}
dimension++;
ForEachArray(currentArray[i]);
}
dimension--;
}
ForEachArray(jsonArray);
return(array);
}
case JsonArrayType.GenericList:
case JsonArrayType.GenericIList:
case JsonArrayType.GenericObservableCollection: {
Type elementType = type.GetGenericArguments()[0];
if (instance?.GetType() != type)
{
if (type.IsInterface)
{
switch (arrayType)
{
default:
throw new JsonNotSupportException(arrayType);
case JsonArrayType.GenericIList:
instance = JsonApi.CreateInstance(typeof(List <>).MakeGenericType(elementType));
break;
}
}
else
{
instance = JsonApi.CreateInstance(type);
}
}
IList list = (IList)instance;
int oldCount = list.Count;
int newCount = 0;
Reader.ReadArray(i => {
newCount = i + 1;
if (i < oldCount)
{
list[i] = BuildValue(elementType, list[i]);
return;
}
list.Add(BuildValue(elementType));
});
while (list.Count > newCount)
{
list.RemoveAt(list.Count - 1);
}
return(list);
}
case JsonArrayType.DataTable: {
if (instance?.GetType() != type)
{
instance = JsonApi.CreateInstance(type);
}
DataTable dataTable = (DataTable)instance;
int columnNumber = dataTable.Columns.Count;
int columnIndex;
ArrayList arrayList = null;
object[] values = null;
Reader.ReadArray(i => {
bool hasRow = dataTable.Rows.Count > i;
if (!hasRow)
{
if (i == 0)
{
arrayList = new ArrayList();
}
else if (values is null)
{
values = new object[columnNumber];
}
}
columnIndex = 0;
Reader.ReadObject(columnName => {
if (!hasRow && i == 0)
{
columnNumber++;
dataTable.Columns.Add(columnName);
}
return(true);
}, () => {
object value = BuildValue();
if (hasRow)
{
dataTable.Rows[i].ItemArray[columnIndex] = value;
return;
}
if (i == 0)
{
arrayList.Add(value);
return;
}
values[columnIndex] = value;
columnIndex++;
});
if (!hasRow)
{
dataTable.Rows.Add(i == 0 ? arrayList.ToArray() : values);
}
});
return(dataTable);
}
}
}
