A program expression is backed by a code tree with an Ex as its leaf.
Program inputs are accessed through the object's attribute map.
- Companion:
- object
trait Obj[T]
trait Mutable[T]
trait Identified[T]
trait Elem[T]
trait Publisher[T, Change[A]]
trait Disposable[T]
trait Writable
trait ExprLike[T, A]
trait Form[T]
class Object
trait Matchable
class Any
trait ProgramImpl[T]