protected override MemberAssignment VisitMemberAssignment(MemberAssignment node)
{
if (node.Member is PropertyInfo property)
{
if (_mapper.IsTargetType(property.PropertyType))
{
_memberStack.Push(node.Member);
var expr = base.VisitMemberAssignment(node);
_memberStack.Pop();
return(expr);
}
else
{
Expression n = _root !;
foreach (var member in _memberStack)
{
n = Expression.PropertyOrField(n, member.Name);
}
n = Expression.PropertyOrField(n, node.Member.Name);
return(Expression.Bind(node.Member, n));
}
}
throw new NotSupportedException($"Member {node.Member} is not supported.");
}
protected override MemberAssignment VisitMemberAssignment(MemberAssignment node)
{
// Look for a pattern target.Property = (something)exp; -> mediator.Property = exp
if (node.Member.MemberType == MemberTypes.Property && _mapper.IsTargetType(node.Member.ReflectedType))
{
var propertyInfo = (PropertyInfo)node.Member;
MemberInfo mediatorProperty = _mapper.ConvertToMediator(propertyInfo);
// Look for a pattern target.Property = (something)exp; -> mediator.Property = exp
if (node.Expression is UnaryExpression convertExpression &&
convertExpression.NodeType == ExpressionType.Convert)
{
return(Expression.Bind(mediatorProperty, Visit(convertExpression.Operand)));
}
// No cast, so you can use expression directly
// TODO: Visit expression
var visitedTarget = Visit(node.Expression);
return(Expression.Bind(mediatorProperty, visitedTarget));
}
return(base.VisitMemberAssignment(node));
}