/// <summary>
/// 根据枚举字符串查找目标索引
/// </summary>
/// <param name="jsonDeSerializer">JSON 解析器</param>
/// <param name="value">当前字符</param>
/// <returns>目标索引,null返回-1</returns>
private int flagEnum(JsonDeSerializer jsonDeSerializer, char value)
{
byte *currentState = State;
do
{
char *prefix = (char *)(currentState + *(int *)currentState);
if (*prefix != 0)
{
if (value != *prefix)
{
return(-1);
}
while (*++prefix != 0)
{
if (jsonDeSerializer.NextEnumChar() != *prefix)
{
return(-1);
}
}
value = jsonDeSerializer.NextEnumChar();
}
if (value == 0 || value == ',')
{
return(jsonDeSerializer.DeSerializeState == DeSerializeState.Success ? *(int *)(currentState + sizeof(int) * 2) : -1);
}
if (*(int *)(currentState + sizeof(int)) == 0)
{
return(-1);
}
int index = value < 128 ? (int)*(ushort *)(charsAscii + (value << 1)) : getCharIndex(value);
byte *table = currentState + *(int *)(currentState + sizeof(int));
if (tableType == 0)
{
if ((index = *(table + index)) == 0)
{
return(-1);
}
currentState = State + index * 3 * sizeof(int);
}
else if (tableType == 1)
{
if ((index = (int)*(ushort *)(table + index * sizeof(ushort))) == 0)
{
return(-1);
}
currentState = State + index * 3 * sizeof(int);
}
else
{
if ((index = *(int *)(table + index * sizeof(int))) == 0)
{
return(-1);
}
currentState = State + index;
}
value = jsonDeSerializer.NextEnumChar();
}while (true);
}