public Expression Build(
CopyPolicy copyPolicy,
Type type,
Expression source,
Expression destination,
MemberInfo member,
Expression cache)
{
var elementType = type.GetElementType();
if (copyPolicy == CopyPolicy.DeepCopy)
{
if (type.GetArrayRank() > 1)
{
return(CreateDeepCopyRectangulerArrayExpression(
type, elementType, source, MemberAccessorGenerator.CreateGetter(destination, member), cache));
}
//return MemberAccessorGenerator.CreateSetter(
// destination,
// member,
// ClonerCache.Instance.Get(elementType, source));
var length = Expression.ArrayLength(source);
var arrayAssign = MemberAccessorGenerator.CreateSetter(
destination,
member,
Expression.NewArrayBounds(elementType, length));
return(CreateDeepCopyArrayExpression(
elementType,
source,
MemberAccessorGenerator.CreateGetter(destination, member),
length,
arrayAssign,
cache));
}
if (copyPolicy == CopyPolicy.ShallowCopy)
{
return(CreateShallowCopyArrayExpression(
type,
source,
MemberAccessorGenerator.CreateGetter(destination, member)));
}
throw new InvalidOperationException();
}
public Expression Build(
Type type,
Expression source,
Expression destination,
MemberInfo member,
Expression cache)
{
var cloneExpression = ClonerCache.Instance.Get(type, source, cache);
if (type != typeof(object))
{
return(MemberAccessorGenerator.CreateSetter(
destination, member, cloneExpression));
}
return(MemberAccessorGenerator.CreateSetter(
destination,
member,
Expression.Condition(
//Expression.TypeEqual(source, typeof(object)),
ExpressionUtils.IsObjectOrValueType(source),
ExpressionUtils.MemberwiseClone(type, source),
cloneExpression)));
}