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eofster/PhoneCallRegistryNonOptionalPhoneCall.swift

Created November 10, 2015 11:01
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Phone call registry returning non-optional phone call
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PhoneCallRegistryNonOptionalPhoneCall.swift
protocol PhoneCallRegistry {
func callWithIdentifier(identifier: Int) -> PhoneCall
}
func hangUpCallWithIdentifier(identifier: Int) {
phoneCallRegistry.callWithIdentifier(identifier).hangUp()
}
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