public void Add <T>(string key, T value, DbNetParamterDirection direction, int sourceIndex, SourceType sourceType, CacheKeyType cacheKeyType)
{
if (dic.ContainsKey(key))
{
throw new Exception(string.Format("参数名称重复，来自 参数位置:{0} 源:{1}", sourceIndex, sourceType == SourceType.FromClass?"来自类属性":
sourceType == SourceType.FromArg ? "来自方法参数":"未知"));
}
dic.Add(key, new DbNetParamter {
Name = key, Value = value, Direction = direction, SourceIndex = sourceIndex, SourceType = sourceType, CacheKeyType = cacheKeyType
});
}
/// <summary>
/// 获取参数封装入集合
/// </summary>
/// <param name="paramterList"></param>
/// <param name="gen"></param>
/// <param name="paramterListBulider"></param>
private static void GetParamters(List <Tuple <string, int, MethodInfo, Type> > outputParamters,
ParameterInfo[] paramterList, ILGenerator gen, LocalBuilder paramterListBulider, bool use_cache, string sqlTextKey, out ParameterInfo scope_parameterInfo)
{
scope_parameterInfo = null;
bool haschache_attr = paramterList.Any(x => x.GetCustomAttribute <DbCacheKeyAttribute>() != null);
foreach (var paramter in paramterList)
{
if (!string.IsNullOrEmpty(sqlTextKey) && paramter.Name == sqlTextKey)
{
//跳过指定sql语句的参数
continue;
}
Type pType = paramter.ParameterType;
Type eType = pType.GetElementType();//若为ref或out参数则eType为其原来类型
if (pType.GetInterface(SCOPE_ITEM) != null ||
(eType != null && eType.GetInterface(SCOPE_ITEM) != null))
{
//IDbNetScope类型为事务处理变量，不能添加到参数中
scope_parameterInfo = paramter;
continue;
}
LocalBuilder pTypeBulider = null;
DbNetParamterDirection dir = DbNetParamterDirection.Input;
CacheKeyType cacheKeyType = CacheKeyType.None;
if (use_cache)
{
cacheKeyType = CacheKeyType.Bind;
if (haschache_attr)
{
cacheKeyType = CacheKeyType.None;
}
var cache_attr = paramter.GetCustomAttribute <DbCacheKeyAttribute>();
if (cache_attr != null)
{
cacheKeyType = CacheKeyType.Bind;
}
}
if (!paramter.IsOut &&
!pType.IsByRef)
{
pTypeBulider = gen.DeclareLocal(pType);
gen.Emit(OpCodes.Ldarg, paramter.Position + 1);
}
else
{
dir = DbNetParamterDirection.InputAndOutPut;
pTypeBulider = gen.DeclareLocal(eType);
if (pType.IsByRef)
{
//获取ref参数的值
gen.Emit(OpCodes.Ldarg, paramter.Position + 1);
GetRef(gen, pTypeBulider.LocalType);
}
}
gen.Emit(OpCodes.Stloc, pTypeBulider);
if (pTypeBulider.LocalType.IsClass)
{
Label isNullLabel = gen.DefineLabel();
gen.Emit(OpCodes.Ldloc, pTypeBulider);
gen.Emit(OpCodes.Ldnull);
gen.Emit(OpCodes.Ceq);
gen.Emit(OpCodes.Brfalse, isNullLabel);
gen.Emit(OpCodes.Call, MethodHelper.defaultMethod.MakeGenericMethod(pTypeBulider.LocalType));
gen.Emit(OpCodes.Stloc, pTypeBulider);
gen.MarkLabel(isNullLabel);
}
if (paramter.IsOut || pType.IsByRef)
{
//输出参数获取下阶段备用
outputParamters.Add(new Tuple <string, int, MethodInfo, Type>(paramter.Name, paramter.Position + 1, null, eType));
}
if (pTypeBulider.LocalType == typeof(string) ||
pTypeBulider.LocalType.IsValueType ||
pTypeBulider.LocalType.IsArray)
{
//添加结构体或者string到集合
gen.Emit(OpCodes.Ldloc, paramterListBulider);
gen.Emit(OpCodes.Ldstr, paramter.Name);
gen.Emit(OpCodes.Ldloc, pTypeBulider);
gen.Emit(OpCodes.Ldc_I4, (int)dir);
gen.Emit(OpCodes.Ldc_I4, paramter.Position);
gen.Emit(OpCodes.Ldc_I4, (int)SourceType.FromArg);
gen.Emit(OpCodes.Ldc_I4, (int)cacheKeyType);
gen.Emit(OpCodes.Call, MethodHelper.paramterMethod.MakeGenericMethod(pTypeBulider.LocalType));
}
else
{
//如果参数是类则需进一步处理
var pinfo = pTypeBulider.LocalType.GetProperties();
var cache_attr_c = paramter.GetCustomAttribute <DbCacheKeyAttribute>();
foreach (var p in pinfo)
{
DbParamterAttribute attr_p = p.GetCustomAttribute <DbParamterAttribute>(true);
bool except = false;
string name = string.Empty;
DbNetParamterDirection pdir = DbNetParamterDirection.Input;
CacheKeyType p_cacheKeyType = CacheKeyType.None;
if (use_cache)
{
p_cacheKeyType = CacheKeyType.Bind;
if (haschache_attr)
{
p_cacheKeyType = CacheKeyType.None;
}
if (cache_attr_c != null)
{
p_cacheKeyType = CacheKeyType.Bind;
}
if (attr_p != null && attr_p.CacheKey != CacheKeyType.Default)
{
p_cacheKeyType = attr_p.CacheKey;
}
}
if (paramter.IsOut)
{
//输出参数获取下阶段备用
outputParamters.Add(new Tuple <string, int, MethodInfo, Type>(paramter.Name, paramter.Position + 1, p.GetSetMethod(), p.PropertyType));
pdir = DbNetParamterDirection.Output;
}
else if (pType.IsByRef)
{
//输出参数获取下阶段备用
outputParamters.Add(new Tuple <string, int, MethodInfo, Type>(paramter.Name, paramter.Position + 1, p.GetSetMethod(), p.PropertyType));
pdir = DbNetParamterDirection.InputAndOutPut;
}
if (attr_p != null)
{
except = attr_p.Except;
name = attr_p.Name;
pdir = attr_p.ParameterDirection;
}
if (string.IsNullOrEmpty(name))
{
name = p.Name;
}
if (!except)
{
gen.Emit(OpCodes.Ldloc, paramterListBulider);
gen.Emit(OpCodes.Ldstr, name);
gen.Emit(OpCodes.Ldloc, pTypeBulider);
gen.Emit(OpCodes.Call, p.GetGetMethod());
gen.Emit(OpCodes.Ldc_I4, (int)pdir);
gen.Emit(OpCodes.Ldc_I4, paramter.Position);
gen.Emit(OpCodes.Ldc_I4, (int)SourceType.FromClass);
gen.Emit(OpCodes.Ldc_I4, (int)p_cacheKeyType);
gen.Emit(OpCodes.Call, MethodHelper.paramterMethod.MakeGenericMethod(p.PropertyType));
}
}
}
}
}
