MacroOptions

Type Members

1. trait AutomaticMaterialization extends Default

   

   For a sealed family (all implementations of a sealed trait or defined explicit union types), this option enables the automatic materialization of handlers for the member types.

   For a sealed family (all implementations of a sealed trait or defined explicit union types), this option enables the automatic materialization of handlers for the member types.

   If used, make sure it cannot lead to type recursion issue (reason why it's not disabled by default).

   import reactivemongo.api.bson.{ BSONDocumentReader, Macros, MacroOptions }
   
   sealed trait Family
   case class TypeA(n: Int) extends Family
   case class TypeB(s: String) extends Family
   case class TypeC(f: Float) extends Family
   
   val reader: BSONDocumentReader[Family] =
     Macros.using[MacroOptions.AutomaticMaterialization].reader[Family]
     // Automatically/internally materializes the readers for Type{A,B,C}

2. trait Default extends MacroOptions

   

   The default options that are implied if invoking "non-Opts" method.

   The default options that are implied if invoking "non-Opts" method. All other options extend this.

3. trait DisableWarnings extends Default

   

   The options to disable compilation warnings.

4. trait LowPriorityValueOfImplicits extends AnyRef

   

5. trait ReadDefaultValues extends Default

   

   Considering a class property with a default value, when reading the class from BSON if there is no BSON value corresponding to the property, then the default value is used.

   Considering a class property with a default value, when reading the class from BSON if there is no BSON value corresponding to the property, then the default value is used.

   import reactivemongo.api.bson.{
     BSONDocument, BSONDocumentReader, Macros, MacroOptions
   }
   
   case class Foo(id: Int, title: String = "default")
   
   val reader: BSONDocumentReader[Foo] =
     Macros.using[MacroOptions.ReadDefaultValues].reader[Foo]
   
   reader.readTry(BSONDocument("id" -> 1))
   // => Success: Foo(id = 1, title = "default")

6. trait UnionType[Types <: \/[_, _]] extends Default

   

   This allows to restrict the handling of family to only some subtypes (not required to be sealed in this case).

   This allows to restrict the handling of family to only some subtypes (not required to be sealed in this case).

   import reactivemongo.api.bson.{
     BSONDocumentWriter, Macros, MacroOptions
   }, MacroOptions.\/
   
   trait Family
   case class TypeA(n: Int) extends Family
   case class TypeB(s: String) extends Family
   case class TypeC(f: Float) extends Family
   
   val writer: BSONDocumentWriter[Family] = {
     implicit val a = Macros.writer[TypeA]
     implicit val b = Macros.writer[TypeB]
   
     Macros.using[MacroOptions.UnionType[TypeA \/ TypeB]].writer[Family]
   }

   Types

   to restrict the subtypes to handle

   See also

   \/

7. trait ValueOf[O <: MacroOptions] extends AnyRef

   

8. trait Verbose extends Default

   

   The options to print out generated code during compilation.

   The options to print out generated code during compilation.

   import reactivemongo.api.bson.{ BSONDocumentWriter, Macros, MacroOptions }
   
   case class Bar(score: Float)
   
   val w: BSONDocumentWriter[Bar] =
     Macros.using[MacroOptions.Verbose].writer[Bar]

9. trait \/[A, B] extends AnyRef

   

   Type for making type-level lists for UnionType.

   Type for making type-level lists for UnionType. If second parameter is another \/ it will be flattend out into a list and so on. Using infix notation makes much more sense since it then looks like a logical disjunction.

   Foo \/ Bar \/ Baz is interpreted as type Foo or type Bar or type Baz

   Annotations

   @SuppressWarnings()

   See also

   UnionType