Dynamic
scala.Dynamic
trait Dynamic
A marker trait that enables dynamic invocations. Instances x
of this trait allow method invocations x.meth(args)
for arbitrary method names meth
and argument lists args
as well as field accesses x.field
for arbitrary field names field
.
If a call is not natively supported by x
(i.e. if type checking fails), it is rewritten according to the following rules:
foo.method("blah") ~~> foo.applyDynamic("method")("blah")
foo.method(x = "blah") ~~> foo.applyDynamicNamed("method")(("x", "blah"))
foo.method(x = 1, 2) ~~> foo.applyDynamicNamed("method")(("x", 1), ("", 2))
foo.field ~~> foo.selectDynamic("field")
foo.varia = 10 ~~> foo.updateDynamic("varia")(10)
foo.arr(10) = 13 ~~> foo.selectDynamic("arr").update(10, 13)
foo.arr(10) ~~> foo.applyDynamic("arr")(10)
As of Scala 2.10, defining direct or indirect subclasses of this trait is only possible if the language feature dynamics
is enabled.
Attributes
- Source
- Dynamic.scala
- Graph
-
- Supertypes
-
class Any
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