| static private FindGenericType ( Type definition, Type type ) : Type | ||
| definition | Type | |
| type | Type | |
| return | Type | |
IQueryable IQueryProvider.CreateQuery(System.Linq.Expressions.Expression expression)
{
if (expression == null)
{
throw System.Linq.Error.ArgumentNull("expression");
}
Type type = TypeHelper.FindGenericType(typeof(IQueryable <>), expression.Type);
if (type == null)
{
throw System.Linq.Error.ArgumentNotValid("expression");
}
return(EnumerableQuery.Create(type.GetGenericArguments()[0], expression));
}
private static Type StripExpression(Type type)
{
bool isArray = type.IsArray;
Type tmp = isArray ? type.GetElementType() : type;
Type eType = TypeHelper.FindGenericType(typeof(Expression <>), tmp);
if (eType != null)
{
tmp = eType.GetGenericArguments()[0];
}
if (isArray)
{
int rank = type.GetArrayRank();
return((rank == 1) ? tmp.MakeArrayType() : tmp.MakeArrayType(rank));
}
return(type);
}
private static Type StripExpression(Type type)
{
bool isArray = type.IsArray;
Type type2 = isArray ? type.GetElementType() : type;
Type type3 = TypeHelper.FindGenericType(typeof(Expression <>), type2);
if (type3 != null)
{
type2 = type3.GetGenericArguments()[0];
}
if (!isArray)
{
return(type);
}
int arrayRank = type.GetArrayRank();
if (arrayRank != 1)
{
return(type2.MakeArrayType(arrayRank));
}
return(type2.MakeArrayType());
}
