Macro fnck_sql::implement_from_tuple

macro_rules! implement_from_tuple {
    ($struct_name:ident, ($($field_name:ident : $field_type:ty => $closure:expr),+)) => { ... };
}

Examples

struct MyStruct {
  c1: i32,
  c2: String,
}

implement_from_tuple!(
    MyStruct, (
        c1: i32 => |inner: &mut MyStruct, value| {
            if let DataValue::Int32(Some(val)) = value {
                inner.c1 = val;
            }
        },
        c2: String => |inner: &mut MyStruct, value| {
            if let DataValue::Utf8(Some(val)) = value {
                inner.c2 = val;
            }
        }
    )
);