object MacroOptions
MacroOptions factories & utilities.
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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}
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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.
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trait
DisableWarnings extends Default
The options to disable compilation warnings.
The options to disable compilation warnings.
import reactivemongo.api.bson.{ BSONDocumentWriter, Macros, MacroOptions } case class Bar(score: Float) val w: BSONDocumentWriter[Bar] = Macros.using[MacroOptions.DisableWarnings].writer[Bar]
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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")
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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] }
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to restrict the subtypes to handle
- See also
\/
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trait
ValueOf[O <: MacroOptions] extends AnyRef
Implicit resolution of MacroOptions
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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]
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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()
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UnionType
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