[swift-evolution] Proposal: Expose getter/setters in the same way as regular methods

[Michael Henson]

Swift-like full KVO/KVC as in Objective-C is a stated long-term goal for
Swift's evolution. The 90% solution might be more straightforward:

class Example {
  var member: String

  func print() {
    print(self.member)
  }
}

var example = Example(member: "Hi!")

var example_print_method = example.print
example_print_method()
result:
Hi!

If there were a mechanism for referring to the getter and setter methods on
the var member property as the same kind of self-capturing closures, it
could make simple cases of data binding easier to implement:

var serializeFields = [
  "member": example.member#get,
]

var deserializeFields = [
  "member": example.member#set,
]

var broadcastValueTo = [
  "memberValues": [
     example.member#set,
     example2.member#set,
     example3.member#set,
  ]
]

viewController.textField.onValueChanged(example.member#set)

Etc.

The "#" notation is just a placeholder for "whatever mechanism is decided
upon", though it does seem to be available and using it postfix makes a
first-glance sense to me in terms of the semantics of expressions.

Mike
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