Crate structmapper

StructMapper

A library to help you generate code that mapped one struct to another.

Example

  use structmapper::StructMapper;

  struct From1 {
    value: i32,
  }

  struct From2 {
    value: i32,
  }

  struct From3 {
    value: i32,
  }

  #[derive(StructMapper)]
  #[struct_mapper(from_type = "From1")]
  #[struct_mapper(from_type = "From2")]
  #[struct_mapper(
    from_type = "(From1, From2, From3)",
    default_base = "{0}",
    fields(
      value = "{0.value} + {1.value} + {2.value}"
    )
  )]
  struct To {
    value: i32
  }

  let to = To::from(From1 { value: 1 });
  assert_eq!(to.value, 1);

  let to = To::from(From2 { value: 2 });
  assert_eq!(to.value, 2);

  let to = To::from((From1 { value: 1 }, From2 { value: 2 }, From3 { value: 3 }));
  assert_eq!(to.value, 1 + 2 + 3);

Derive Macros

StructMapper