diff options
Diffstat (limited to 'examples/shared/src/main/scala')
-rw-r--r-- | examples/shared/src/main/scala/default.scala | 3 | ||||
-rw-r--r-- | examples/shared/src/main/scala/typename.scala | 19 |
2 files changed, 22 insertions, 0 deletions
diff --git a/examples/shared/src/main/scala/default.scala b/examples/shared/src/main/scala/default.scala index 4c1b634..4b781a5 100644 --- a/examples/shared/src/main/scala/default.scala +++ b/examples/shared/src/main/scala/default.scala @@ -30,6 +30,9 @@ object Default { /** default value for ints; 0 */ implicit val int: Default[Int] = new Default[Int] { def default = 0 } + /** default value for sequences; the empty sequence */ + implicit def seq[A]: Default[Seq[A]] = new Typeclass[Seq[A]] { def default = Seq.empty } + /** generates default instances of [[Default]] for case classes and sealed traits */ implicit def gen[T]: Default[T] = macro Magnolia.gen[T] } diff --git a/examples/shared/src/main/scala/typename.scala b/examples/shared/src/main/scala/typename.scala new file mode 100644 index 0000000..c1e1fd2 --- /dev/null +++ b/examples/shared/src/main/scala/typename.scala @@ -0,0 +1,19 @@ +package magnolia.examples + +import language.experimental.macros + +import magnolia._ + +trait TypeName[T] { def name: String } + +object TypeName { + type Typeclass[T] = TypeName[T] + def combine[T](ctx: CaseClass[TypeName, T]): TypeName[T] = + new TypeName[T] { def name: String = ctx.typeName } + + def dispatch[T](ctx: SealedTrait[TypeName, T]): TypeName[T] = + new TypeName[T] { def name: String = ctx.typeName } + + implicit def gen[T]: TypeName[T] = macro Magnolia.gen[T] +} + |