Tweak unidirectional binding protocols. #359
Merged
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Replace the
observe(_:during:)
requirement in theBindingSource
protocol with aSignalProducer
representation.If Generic n-ary producer operators for n > 1. #351 is accepted,
BindingSource
would adopt arbitrary constraint on associated types and conditional conformances in Swift 4:While this is breaking,
observe(_:during:)
is not expected to be publicly used.Move
<~
intoBindingTargetProvider
.The
SignalProducer
representation and theBindingTarget
are sufficient points of customisation, and apparently there would not be an alternative semantic of<~
to override for in the context of these two protocols.