>
> On Apr 28, 2016, at 11:05 AM, Xiaodi Wu <[email protected]> wrote:
>
> How is retroactive modeling accommodated in this scheme? Say I want to
> conform three types I don't own to a protocol of my design and supply a
> default implementation for a protocol requirement. How would I go about it?
extension NotMyType: ProtocolIdesigned {...}
extension NotMyProtocol {
required func method1() {...}
override required func method2() {...} // assumes NMP has already provided
default
func newThing() {...}
}
The only tricky bit is when NotMyProtocol already has a default required func
implementation and an override required func implementation (although that
should be rare). In such case, you probably have to create a new protocol
DerivedProtocol: NotMyProtocol and work from there. The override in the
DerivedProtocol will then take priority over the override in NotMyProtocol.
-- E
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