Mapping Generator

Branch	Status
Master
Develop

"AutoMapper" like, Roslyn based, code fix provider that allows to generate mapping code in design time.

You can download it as Visual Studio Extension from Visual Studio Marketplace.

Contributing

Before you start any contributig work, plase read the contribution guidline

Main features

Generate mapping method body

Pure mapping method

Non-void method that takes single parameter

public UserDTO Map(UserEntity entity)
{
    
}

Updating method

Void method that takes two parameters

public void Update(UserDTO source, UserEntity target)
{
    
}

Mapping Constructor

Constructor method that takes single parameter

public UserDTO(UserEntity user)
{
    
}

Updating member method

Void member method that takes single parameter

public void UpdateWith(UserEntity en)
{
    
}

Generate inline code for fixing Compiler Errors:

CS0029 Cannot implicitly convert type 'type' to 'type'

CS0266 Cannot implicitly convert type 'type1' to 'type2'. An explicit conversion exists (are you missing a cast?)

CS7036 There is no argument given that corresponds to the required formal parameter

Mapping features

• Mapping Property-To-Property

  target.FirstName = source.FirstName;
  target.LastName = source.LastName;

• Mapping Method Call-To-Property

  target.Total = source.GetTotal()

• Flattening with sub-property

  target.UnitId = source.Unit.Id

• Mapping complex property

  var targetMainAddress = new AddressDTO();
  targetMainAddress.BuildingNo = source.MainAddress.BuildingNo;
  targetMainAddress.City = source.MainAddress.City;
  targetMainAddress.FlatNo = source.MainAddress.FlatNo;
  targetMainAddress.Street = source.MainAddress.Street;
  targetMainAddress.ZipCode = source.MainAddress.ZipCode;
  target.MainAddress = targetMainAddress;

• Mapping collections

  target.Addresses = source.Addresses.Select(addressEntity =>
  {
      var addressDTO = new AddressDTO();
      addressDTO.BuildingNo = addressEntity.BuildingNo;
      addressDTO.City = addressEntity.City;
      addressDTO.FlatNo = addressEntity.FlatNo;
      addressDTO.Street = addressEntity.Street;
      addressDTO.ZipCode = addressEntity.ZipCode;
      return addressDTO;
  }).ToList().AsReadOnly();

• Unwrapping wrappers

  customerEntity.Kind = cutomerDTO.Kind.Selected;

    public enum CustomerKind
    {
        Regular,
        Premium
    }
  
    public class Dropdown<T>
    {
        public List<T> AllOptions { get; set; }
  
        public T Selected { get; set; }
    }
  
    public class CustomerDTO
    {
        public string Name { get; set; }
        public Dropdown<CustomerKind> Kind { get; set; }
    }
  
    public class UserEntity
    {
        public string Name { get; set; }
        public CustomerKind Kind { get; set; }
    }

• Using existing direct mapping constructor

  target.MainAddress = new AddressDTO(source.MainAddress);

• using existing multi-parameter constuctor

  this.User =  new UserDTO(firstName: entity.FirstName, lastName: entity.LastName, age: entity.Age);